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Low temperature coupled with mechanical liquefaction of seaweed for energy and economically efficient anaerobic digestion Algal. Res. (IF 5.1) Pub Date : 2024-03-12 C. Shivaranjini, M. Dinesh Kumar, K. Tamilarasan, Rajeev Kumar Bhaskar, Siham Y. Al-Qaradawi, J. Rajesh Banu
This current work was focused on energy and economically efficient biogas production from seaweed (marine macroalgae) using low-temperature coupled mechanical pretreatment (LTMP). Low temperature pretreatment (LTP) was performed at 50–90 °C for varying periods, from 0 to 60 min. Maximum soluble chemical oxygen demand (SCOD) of 1040 mg/L with 13 % liquefaction was obtained at 80 °C in 30 min for the
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R-phycoerythrin alginate/shellac beads by external gelation: Process optimization and the effects of gastrointestinal digestion for nutraceutical applications Algal. Res. (IF 5.1) Pub Date : 2024-03-11 Pablo Castro-Varela, Mónica Rubilar, Antonio Martínez-Férez, David Fuentes-Ríos, Juan Manuel López-Romero, Claudio Alarcón, Roberto Abdala-Díaz, Félix L. Figueroa
This study aimed to evaluate an alginate/shellac mixture as wall material to develop an aqueous phycoerythrin (R-PE) encapsulation system by external gelation and to determine the effect of encapsulation on the biological properties of R-PE released during simulated gastrointestinal digestion. The Taguchi method was implemented to formulate beads with a high R-PE encapsulation efficiency (EE). The
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An untargeted metabolomic outlook for delineating the reverberations of CO2 exposure to Scenedesmus sp Algal. Res. (IF 5.1) Pub Date : 2024-03-11 Rimjhim Sangtani, Dinesh Parida, Rudrajit Mandal, Tonmoy Ghosh, Kiran Bala
Mitigating CO emissions emerges as a crucial focal point within the current environmental and health challenges. In order to evolve to a net-zero future, it is noteworthy that a photosynthetic microalga demonstrates resilience to CO stress modulations, thereby efficiently navigating the production of essential bioproducts. RuBisCO, an enzyme responsible for capturing and partitioning CO by photosynthetic
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In silico antiviral properties of Spirulina platensis phycobiliprotein and phycobilin as natural inhibitor for SARS-CoV-2 Algal. Res. (IF 5.1) Pub Date : 2024-03-09 Heli Siti Halimatul Munawaroh, Gun Gun Gumilar, Riska Nur Pratiwi, Selmi Fiqhi Khoiriah, Andriati Ningrum, Larasati Martha, Kit Wayne Chew, Pau-Loke Show
The global pandemic COVID-19 in 2019 has led to a continued search for promising potential molecules to combat human viral diseases. An strategy was attempted to narrow down the discovery of potentially active compounds for drug candidates. It has been reported that several bioactive molecules in cyanobacteria have displayed antiviral activities. This study aimed to investigate the potential of phycobiliprotein
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Photosynthetic species composition determines bioplastics production in microbiomes: Strategy to enrich cyanobacteria PHB-producers Algal. Res. (IF 5.1) Pub Date : 2024-03-08 Beatriz Altamira-Algarra, Artai Lage, Joan García, Eva Gonzalez-Flo
The aim of this study was to set the operating mode in regards to nutrients, temperature and light to use as a strategy to enrich a microbiome rich in cyanobacteria in polyhydroxybutyrate (PHB)-producers in order to enhance the biopolymer production. Alternate growth and accumulation phases were conducted for 197 days in a 3 L photobioreactor. Although, presence of green algae potentially reduced PHB
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GreenCut protein LPB1 is required for SQDG accumulation and optimal photosynthetic electron transfer from QA− to QB in Chlamydomonas reinhardtii Algal. Res. (IF 5.1) Pub Date : 2024-03-08 Shuaiqi Zhu, Huanling Yang, Song Bin, Meimei Wang, Tingting You, Xiaobo Li, Lijin Tian, Arthur R. Grossman, Shan Lu, Wenqiang Yang
The thylakoid membrane lipid sulfoquinovosyldiacylglycerol (SQDG) is an anionic molecule that functions in stabilizing the thylakoid membranes and photosystem (PS) supercomplexes. In this study, we characterized the function of GreenCut protein CrLPB1, which encodes UDP-glucose pyrophosphorylase (UGP3), an enzyme involved in SQDG biosynthesis. The mutants had reduced levels of SQDG, grew more slowly
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Optimization of a Chlorella–Saccharomyces co–culture system for enhanced metabolite productivity Algal. Res. (IF 5.1) Pub Date : 2024-03-08 Zuopeng Xu, Constantinos Theodoropoulos, Jon K. Pittman
Microalgae and yeast co–culture systems are gaining interest as a promising method for higher production of biomass and metabolites. However, because these organisms have particular cultivation requirements, optimization of culture conditions is needed for suitable growth and productivity of the co–culture. This work examines the effects of cultivation media macronutrient composition on the growth
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Identification and functional analysis of phycocyanin-derived bioactive peptides with non-small cell lung cancer cell inhibition Algal. Res. (IF 5.1) Pub Date : 2024-03-07 Boxiong Wu, Haozhe Cheng, Xinran Li, Qi Yang, Shuai Hao, Chengtao Wang, Baoguo Sun
Non-small cell lung cancer (NSCLC) is one of the most lethal types of malignancies around the world. Phycocyanin, a type of functional food additive derived from photosynthetic pigment protein in cells, has been verified to exhibit antineoplastic effect on NSCLC. However, the investigation on bioactive peptides of phycocyanin, especially in NSCLC, remains poorly documented. The goal of this work is
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The osteogenic potential of seaweed: A systematic review and meta-analysis Algal. Res. (IF 5.1) Pub Date : 2024-03-07 Suriani Saleng, Faqi Nurdiansyah Hendra, Muhammad Ruslin, Tymour Forouzanfar, Marco N. Helder
Recently seaweeds have gained intense interest as a source for developing seaweed compound-based therapies for bone growth. While several seaweed compounds were tested in pre-clinical models, an overview article of their osteogenic potential is currently lacking. A search was performed in May 2023 of Embase, PubMed, Web of Science, and other references. A systematic review and meta-analysis were conducted
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Treatment of anaerobically digested swine manure using Chlorella vulgaris and bacteria in scaled-up systems Algal. Res. (IF 5.1) Pub Date : 2024-03-06 Lu Wang, Fei Zhang, Xiaochen Ma, Dmitri Mataya, Junhui Chen, Kirk Cobb, Pengfei Cheng, Yanling Cheng, Min Addy, Paul Chen, Roger Ruan
In previous studies, an integrated process (flocculation, struvite precipitation, and bacteria co-treatment) was shown to be a potentially effective treatment for anaerobically digested swine manure (ADSM). To assess the feasibility of engineering application, the biological treatment ( and bacteria) of this integrated process was scaled up and implemented in an open vertical runway treatment system
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Changes in velocity distribution produced by paddlewheels in algae raceway ponds Algal. Res. (IF 5.1) Pub Date : 2024-03-06 Mahmoud Abbaszadeh, Sergio Maldonado, Gustavo de Almeida
Open raceway ponds (RWPs) are widely used in large-scale algae production. To improve the performance of these systems, it is crucial to understand the flow structure throughout the ponds. Computational fluid dynamics (CFD) simulations have been widely used to study the flow field in RWPs. However, such studies typically require assumptions about the distribution of velocities at the inlet boundary
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Coralline Halimeda opuntia algae-derived bio-hydroxyapatite enhances the bioactivity of piezoelectric tissue engineering scaffolds Algal. Res. (IF 5.1) Pub Date : 2024-03-05 Marie Joyce Terinna Vincent, Itisha Chummun Phul, Avin Ramanjooloo, Kamlesh Ramdhony, Devesh Bekah, Nowsheen Goonoo, Akash Nundloll, Prerna Roy, Preeti Nitisha Oogarah, Archana Bhaw-Luximon
Biomaterials are increasingly being used to promote tissue repair after wounds. Coralline algae have been reported as valuable sources of hydroxyapatite (HAp). The identification and characterization of with high calcium carbonate content from the Indian Ocean have been performed. Bio-hydroxyapatite (Bio-HAp) was synthesized through a combined process of pyrolysis followed by a hydrothermal treatment
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Synergy between carbon sources and light in microalgal culture from the perspective of wastewater treatment in high rate algal ponds Algal. Res. (IF 5.1) Pub Date : 2024-03-05 Solène Jahan, Jeremy Pruvost, Mariana Titica, Guillaume Cogne, Howard Fallowfield
Using solar light as an energy source in microalgae-based wastewater treatment is crucial for maintaining sustainability. To maintain treatment efficiency, microalgae need to exhibit resilience, especially during periods of reduced sunlight. Organic carbon, often abundant in wastewater, has been observed to enhance algal productivity and limit biomass loss under extreme light conditions. Microalgae
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Phytoplankton functional dynamics in relation to some physicochemical parameters in Lake Kuriftu (Oromia, Ethiopia) Algal. Res. (IF 5.1) Pub Date : 2024-03-05 Demtew Etisa, Demeke Kifle, Tadesse Fetahi
The water quality of Lake Kuriftu is deteriorating, and monitoring programs are almost nonexistent in Ethiopia. Phytoplanktons are good indicators of environmental changes due to their fast response to a wide range of stressors. The phytoplankton functional groups (FGs) can be used as water quality indicators. This study aimed to assess the dynamics of phytoplankton functional groups (FGs) in relation
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Temperature effects on growth, metabolome, lipidic profile and photosynthetic pigment content of Microglena antarctica (chlorophyceae): A comprehensive analysis Algal. Res. (IF 5.1) Pub Date : 2024-03-04 Riccardo Trentin, Emanuela Moschin, Luísa Custódio, Isabella Moro
Antarctic microalgae have evolved a wide range of adaptations to survive at extreme environmental conditions. This study aimed to explore the physiological and biochemical processes occurring in (Chlorophyceae) in response to changes in temperature. cultivated at three distinct temperatures (4 °C, 8 °C and 16 °C) exhibited variations in growth patterns, metabolomes, fatty acid methyl esters (FAMEs)
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Review on recent advances of Gracilariopsis lemaneiformis (Rhodophyta) Algal. Res. (IF 5.1) Pub Date : 2024-03-03 Mengxing Cao, Jingyu Zhang, Pingping Li, Jinguo Wang, Ping Mi, Zhenghong Sui
is an economical red algae that is an important raw material for agar production. Although researchers have obtained several high-yield cultivars (e.g., 981 and 2007), their growth is still limited and influenced by several environmental factors such as heat stress and nitrogen restriction. In recent years, agar metabolism, photosynthesis, and tetrasporophyte development in have emerged as prominent
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Investigation of antioxidant and anticancer potential of fucoidan (in-vitro &in-silico) from brown seaweed Padina boergesenii Algal. Res. (IF 5.1) Pub Date : 2024-03-03 Ragunath Cholaraj, Ramasubramanian Venkatachalam
The present study was aimed to evaluate the antioxidant, anticancer activity and analysis of fucoidan extracted from the brown seaweed (SF-PB). The overall dry mass of the isolated SF-PB and sulphate residues was found to be 4.9 ± 0.12 % and 17.72 ± 0.25 % respectively. The Fourier Transform Infrared Spectroscopy (FTIR), X-Ray diffraction analysis (XRD), Nuclear Magnetic Resonance (NMR) Spectroscopy
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Role of reactive oxygen species (ROS) signaling pathway in the wound-induced spore formation of Pyropia yezoensis Algal. Res. (IF 5.1) Pub Date : 2024-03-02 Qiran Sun, Shanshan Shu, Zehao Zhang, Xiaowei Guan, Ying Pang, Xiaoqian Zhang, Fugeng Tang, Yunxiang Mao, Dongmei Wang
Asexual spore formation of significantly impacts yield. After mechanical sectioning of leafy thalli into fragments, somatic cells rapidly develop into a large number of wound-induced spores (WIS, a form of asexual spores). Recent studies on have demonstrated a notable increase in reactive oxygen species (ROS) during this process; however, the regulatory mechanism underlying this ROS signaling remains
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Botryococcus braunii autolysate for the production of deuterium-labeled recombinant protein Algal. Res. (IF 5.1) Pub Date : 2024-03-02 K. Koruza, E. Krupinska, C. Sele, Á. Végvári, W. Knecht, S.Z. Fisher
Deuterated biomolecules such as proteins, lipids, and DNA are widely used in neutron scattering experiments. This is due to the unique scattering properties of H, including a strong positive neutron scattering length while contributing very little background compared to the more abundant H isotope. Deuteration is therefore an indispensable component in the study of structure, function, and dynamic
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Comparative transcriptome study highlights the versatility of nitrogen metabolism in Chlamydomonas Algal. Res. (IF 5.1) Pub Date : 2024-03-02 Vaishali Rani, Prateek Shetty, Gergely Maróti
Nitrogen is an essential macronutrient and nitrate is one of the main forms of this macronutrient available for plants and microbes. Nitrate is not only the substrate for the nitrate assimilation pathway, but also a crucial signal for the regulation of numerous metabolic, developmental, and cellular differentiation processes. In the present study, two species of the genus, cc124 and sp. MACC-216 were
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Nucleotide and peptide rich biomass cultivation: Trophic mode influence on Chlorella Growth Factor (CGF) production Algal. Res. (IF 5.1) Pub Date : 2024-03-01 Manupati Hemalatha, S. Venkata Mohan
Utilization of a nutritional supplement derived from protein-rich microalgae, specifically , holds significant promise for enhancing the metabolism, growth, and development of both livestock and mankind. is particularly advantageous due to its ease of cultivation and high composition of protein, pigments, and essential micro-nutrients, including the valuable Chlorella Growth Factor (CGF). A comprehensive
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Enhancing microalgae-based bioremediation technologies with carbon-coated zero valent iron nanoparticles Algal. Res. (IF 5.1) Pub Date : 2024-02-29 Lara Méndez, Raúl Muñoz
This study investigated the influence of the addition of carbon-coated zero-valent nanoparticles to enhance CO removal efficiency, contributing to improved microalgae growth and biogas upgrading. NPs were studied in different formats - raw suspension (Raw-NPs) and dried format (D-NPs)-, along with the liquid fraction of the raw suspension (SP) on the performance of for biogas upgrading and domestic
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Printable formulations of protein and Chlorella vulgaris enriched vegetable puree for dysphagia diet Algal. Res. (IF 5.1) Pub Date : 2024-02-28 Larisa Giura, Leyre Urtasun, Diana Ansorena, Iciar Astiasaran, Anabela Raymundo
Three biomasses, smooth , honey and white were used at a percentage of 3 % in vegetable purees (10 % zucchini and 10 % carrots), enriched in protein (22 % lentil protein concentrate) and 0.8 % of xanthan gum. Their nutritional, digestibility, physicochemical, rheological and 3D-printability properties were determined. Sample with white showed significantly higher antioxidant capacity than the control
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Bioprospecting marine microalgae as sustainable bio-factories for value-added compounds Algal. Res. (IF 5.1) Pub Date : 2024-02-28 Jairam Selvam, Joyabrata Mal, Sukhendra Singh, Ashish Yadav, Balendu Shekher Giri, Ashok Pandey, Rupika Sinha
In recent years, there has been increasing attention towards marine bioprospecting owing to the potential for developing sustainable and environmentally friendly production systems for a diverse range of novel compounds derived from vast marine lifeforms. Marine microalgae have evolved as a promising source for the synthesis of value-added compounds (VACs) with a broad spectrum of applications in various
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A step towards more eco-friendly and efficient microalgal harvesting: Inducing flocculation in the non-naturally flocculating strain Chlorella vulgaris (13-1) without chemical additives Algal. Res. (IF 5.1) Pub Date : 2024-02-28 Olivia Spain, Christiane Funk
Flocculation is often regarded as a cost-effective and reliable method for microalgal harvesting. However, the traditional method often requires the addition of chemical agents to induce flocculation. This carries certain disadvantages including the chemical contamination of the biomass and the subsequent need to remove the flocculants from the medium. To address these issues, this study aimed to induce
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A review on Persian Gulf brown algae as potential source for anticancer drugs Algal. Res. (IF 5.1) Pub Date : 2024-02-28 Abbas Sadeghi, Ali Rajabiyan, Najme Meygoli Nezhad, Nafise Nabizade, Alireza Alvani, Amanollah Zarei-Ahmady
Cancer remains one of the most formidable challenges in modern medicine, and its global impact on human health underscores the urgency for advancing treatment methods. Despite the significant progress in understanding the complex biology of cancer and the development of different therapeutic approaches, the search for new anticancer agents for cancer treatment is very important. Marine organisms are
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Effectiveness of ammonium-based deep eutectic solvents in extracting polyphenol from Chlorella vulgaris Algal. Res. (IF 5.1) Pub Date : 2024-02-23 Mohamad Hamdi Zainal-Abidin, Eng Jia Jia, Khairunnisa’ Khairuzi, Sonny Kristianto, Wan M. Asyraf Wan Mahmood, Abdo Mohammed Al-Fakih, Juan Matmin, Roswanira Abdul Wahab, Faizuan Abdullah, Mohd Fuad Mohamad, Siti Ernieyanti Hashim, Hwee Li Teo, Syariffah Nuratiqah Syed Yaacob, Chia Boon Chiann
This study investigates the extraction of polyphenols from microalgae using environmentally friendly choline chloride-based deep eutectic solvents (DESs), specifically DES 1 (choline chloride: ethylene glycol, 1:2) and DES 2 (choline chloride: glycerol, 1:2). Thermal characterization of DESs through DSC analysis confirmed their formation as a glass former, while through density and viscosity analysis
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Extraction of macroalgae phenolic compounds for cosmetic application using eutectic solvents Algal. Res. (IF 5.1) Pub Date : 2024-02-21 João M. Santos, Bárbara C. Jesus, Helena Ribeiro, Alice Martins, Joana Marto, Manuel Fitas, Pedro Pinto, Celso Alves, Joana Silva, Rui Pedrosa, Isabel M. Marrucho
Cosmetic industry remains a major focus of economic development in the 21st century, while consumer's demand for sustainability drives the search for new active natural ingredients and the development of green extractions techniques. The aim of this work is to obtain antioxidant-enriched extracts from two seaweeds found on the Portuguese shore, and using natural deep eutectic solvents (NADES) to be
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Genetic-engineered Schizochytrium sp. expressing a multiepitopic protein based on Vibrio parahaemolyticus toxins triggers immune responses in mice Algal. Res. (IF 5.1) Pub Date : 2024-02-21 Edgar Trujillo, Ricardo Villegas-Zagal, Abel Ramos-Vega, Bernardo Bañuelos-Hernández, Carlos Angulo, Elizabeth Monreal-Escalante
is a bacterium that naturally occurs in coastal waters and can multiply in warmer temperatures. Infection with these bacteria can inflict acute gastroenteritis by consuming contaminated seafood. Antibiotics must be prescribed. However, some antibiotics are no longer effective and no vaccine is available yet. Herein a microalgae-made immunogenic protein made up of epitopes from hemolysin toxins named
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Quantitative analysis of fucose in fucoidans from Sargassum spp. in Jeju Island, South Korea using 3-methyl-1-phenyl-5-pyrazolone derivatization and RP-HPLC-UV method Algal. Res. (IF 5.1) Pub Date : 2024-02-21 Jun-Ho Heo, Jun-Geon Je, Jae-Hak Sim, Bomi Ryu, Soo-Jin Heo, You-Jin Jeon
species are representative brown algae found worldwide, with 27 species native to the coast of Jeju Island in South Korea. Fucoidans are derived from brown algae and exhibit a variety of biological activities. Analysis of the monosaccharide composition is necessary for an in-depth study of fucoidans. However, quantitative analysis of fucoidans with complex structures according to species and habitat
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Enhanced carotenoid production, biodiesel quality, and harvesting efficiency in microalga Graesiella emersonii via heterotrophic cultivation strategy Algal. Res. (IF 5.1) Pub Date : 2024-02-20 Hyunji Ki, Eun Song Kim, Sung Min An, Nam Seon Kang, Seung Seob Bae, Grace Choi, Cheol Ho Pan, Keun-Yong Kim, Jawahar G. Patil, Kichul Cho
The aim of this study was to evaluate the potential industrial applicability of the green microalga GEGS21 by comparing its biomass, photosynthetic pigments, and biodiesel properties under photoautotrophic (PA) and heterotrophic (HT) cultivation. Four Agricultural soluble fertilizers (SFs) were tested as substitute medium for algal growth. Of these, three were not only cost-effective but also more
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Application of passive vortex generators to enhance vertical mixing in an open raceway pond Algal. Res. (IF 5.1) Pub Date : 2024-02-19 Chen Shen, David S. Dandy
A novel use of vortex generators in a raceway pond is described here, with the flow field quantitatively simulated using computational fluid dynamics using the large eddy simulation turbulence model. Persistence lengths of the swirling motion generated by the vortex generators indicate that significant vertical mixing can be achieved by placing vortex generators in the straight section opposite the
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Untangling the peacock's tail: Species diversity, taxonomy and origins of the economically valuable brown alga Padina (Dicyotales, Phaeophyceae) in Korea Algal. Res. (IF 5.1) Pub Date : 2024-02-16 Christophe Vieira, Manon Daudinet, Myung Sook Kim
The brown algal genus demonstrated compelling potential for applications in food and biotechnology, arising from its valuable reservoir of minerals, macro- and micro-nutrients, and bioactive compounds. The genus was first reported in Korea in 1892, and to date, a total of six species has been recognized in Korea using a traditional taxonomic morphology-based approach. Nevertheless, there have been
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Inducing heritable genomic deletions in APT gene of Chlorella sorokiniana using CRISPR/Cas9 Algal. Res. (IF 5.1) Pub Date : 2024-02-15 Joung Sug Kim, Sangmuk Lee, Seungchan Cho, Yuchul Jung
Microalgae, particularly , have immense potential for applications in biofuel production, protein synthesis, and gene function exploration. The CRISPR/Cas9 system is a powerful tool for precise genome editing. However, this system was previously believed to exhibit low efficiency for genome editing within . In this study, we developed a system involving the transient expression of CRISPR/Cas9 components
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The telomere-to-telomere, gapless, phased diploid genome and methylome of the green alga Scenedesmus obliquus UTEX 3031 reveals significant heterozygosity and genetic divergence of the haplotypes Algal. Res. (IF 5.1) Pub Date : 2024-02-14 Thomas C. Biondi, Colin P.S. Kruse, Samuel I. Koehler, Taehyung Kwon, Aubrey K. Davis, Wyatt Eng, Yuliya Kunde, Cheryl D. Gleasner, Kayley T. You Mak, Juergen Polle, Blake T. Hovde, Erik R. Hanschen, Shawn R. Starkenburg
Recent advances in sequencing technologies have improved contiguity of de novo genome assemblies. Nevertheless, the genomes of all non-haploid eukaryotic organisms remain unfinished, limiting understanding of genetic and structural variation in complex organisms. Herein, we report the methodology and analysis of a 100 % complete, telomere-to-telomere genome assembly of the eukaryote, UTEX 3031 (DOE0152Z)
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Chitosan silver nanoparticle inspired seaweed (Gracilaria crassa) biodegradable films for seafood packaging Algal. Res. (IF 5.1) Pub Date : 2024-02-14 Arunachalasivamani Ponnusamy, Radhika Rajasree S R, Roopa Rajan, Fathima Ashraf
As an alternative to conventional plastic packaging, the concept of developing blend films with bio-based materials seems to be an environmentally friendly approach. In the present study, blend films were prepared using ethanolic extract of (GCE) with chitosan (CS) and silver nanoparticles (AgNPs). The developed films were evaluated based on the physical, mechanical, structural, barrier and antioxidant
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Impact of cold atmospheric pressure plasma (CAPP) treatments on the prebiotic potential of Arthrospira platensis (Spirulina) Algal. Res. (IF 5.1) Pub Date : 2024-02-13 María Consuelo Pina-Pérez, Neus Ricós-Muñoz, Ella Karina López-Suárez, Consuelo Esteve, Sergi Maicas, Michael Beyrer
Powdered (Spirulina) is one of the most valuable nutraceutical products in terms of functionality and food-fortification due to its recognized prebiotic, antioxidant, and immunomodulatory potential. The present study aims to assess the quality of this matrix as a prebiotic after Cold Atmospheric Pressure Plasma (CAPP) processing. CAPP-treated Spirulina samples (1 mg/mL), at effective discharge power
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Fast multispectral imaging analysis as phenotyping platform: Effect of titanium dioxide nanoparticles on microalgae physiology Algal. Res. (IF 5.1) Pub Date : 2024-02-13 L.L. Lavandosque, A.L. Hennemann, C.B. Mastrangelo, H.W.P.C. Carvalho, R.R. Guimarães, K. Araki, F.V. Winck
Several types of nanoparticles have been developed and explored in agricultural applications and their environmental impact evaluated. However, no such study was carried out using fully dispersible ultrasmall titanium dioxide nanoparticles (us-TiO). Therefore, we investigate the effects of fully dispersible 2.5 nm large us-TiO nanoparticles on the cellular metabolism of the microalgae using multispectral
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Salt stress responses of microalgae biofilm communities under controlled microcosm conditions Algal. Res. (IF 5.1) Pub Date : 2024-02-13 Khawla Lazrak, Maren Nothof, Zakaria Tazart, Sabine Filker, Elisabeth Berger, Khadija Mouhri, Mohammed Loudiki
Algal biofilms play an essential role in ecosystem functioning, but their physiological and biochemical changes during salt stress remain poorly understood. This study aimed at investigating how biofilm communities react to different salinity in a microcosm experiment and to offer insights into the potential effects of future freshwater salinization. Biofilm samples collected from Iriri River (Drâa
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Genome analysis of Chlorella vulgaris (CCAP 211/12) mutants provided insight into the molecular basis of chlorophyll deficiency Algal. Res. (IF 5.1) Pub Date : 2024-02-11 Jianbo Jian, Pablo Torres-Montero, Mingzhou Bai, Yi Lu, Henrik Toft Simonsen
has a high photosynthetic efficiency and is used for commercial applications in foods. Targeted genetic engineering is currently challenging due to the lack of high-quality genomes. In this study, we investigated the differential chlorophyll content between wild type and chlorophyll-deficient mutants. We performed nuclear genome assembly, genetic variation, and gene expression analysis, resulting in
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A review of extremophilic microalgae: Impacts of experimental cultivation conditions for the production of antimicrobials Algal. Res. (IF 5.1) Pub Date : 2024-02-10 Kathryn L. Rinaldi, Gerusa N.A. Senhorinho, Corey A. Laamanen, John A. Scott
Microalgal genera and bioprospected from freshwater or marine conditions have shown promising bioactivities. Some microalgae are adapted to thrive in extreme environments, including those with extreme salinity, pH, temperature, and/or heavy metals. Survival and growth under these conditions, as a characteristic of the natural environment or the result of anthropogenic impacts, has been associated with
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Production and characterization of protein-rich extracts from the red macroalga Gelidium corneum and its industrial agar extraction residues Algal. Res. (IF 5.1) Pub Date : 2024-02-09 Marília Mateus, Rita Mão de Ferro, Helena M. Pinheiro, Remígio Machado, M. Manuela R. da Fonseca, Maria Sapatinha, Carla Pires, Isa Marmelo, António Marques, Maria Leonor Nunes, Carla Motta, M. Teresa Cesário
The red macroalga is a species commercially exploited for agar extraction, though with enormous potential for other industrial applications. This work aimed to produce protein-rich extracts from the crude alga and from residues of the industrial agar extraction process by applying different extraction and recovery procedures, and to characterize the obtained protein extracts.
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Livestock wastewater bioremediation through indigenous microalgae culturing as a circular bioeconomy approach as cattle feed Algal. Res. (IF 5.1) Pub Date : 2024-02-08 M. Blanco-Vieites, M. Álvarez-Gil, F. Delgado, L. García-Ruesgas, E. Rodríguez
Growing human population demands the enhancement intensive livestock activities, which lead to severe environmental issues like water pollution. Cattle wastewater is rich in some inorganic pollutants, mainly nitrogen and phosphorous, which might constitute a risk to water bodies. Considering this scenario, microalgae's capacity to develop within manure wastewater is attracting interest, mainly for
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Bioprospecting of microalgae from agricultural fields and developing consortia for sustainable agriculture Algal. Res. (IF 5.1) Pub Date : 2024-02-08 Shisy Jose, Nirmal Renuka, Sachitra Kumar Ratha, Sheena Kumari, Faizal Bux
Bioinoculation of soil with microalgae, such as cyanobacteria and green microalgae has been identified as an innovative approach to promote sustainable agriculture. In this study, indigenous nitrogen-fixing cyanobacteria and non‑nitrogen-fixing green microalgae were isolated from agricultural fields and analyzed for metabolites of agricultural significance for the development of suitable microalgal
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Artificial intelligence-driven microalgae autotrophic batch cultivation: A comparative study of machine and deep learning-based image classification models Algal. Res. (IF 5.1) Pub Date : 2024-02-08 Jun Wei Roy Chong, Kuan Shiong Khoo, Kit Wayne Chew, Huong-Yong Ting, Koji Iwamoto, Roger Ruan, Zengling Ma, Pau Loke Show
The goal of this study is to classify microalgae of different species, using machine learning (ML) and deep learning (DL) methods. At present, we applied gray-scaling, bilateral filtering, adaptive thresholding, Sobel edge detection, and Canny edge detection, for the segmentation of microalgae. Morphological and texture descriptors, which are part of the important geometrical features, were used for
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Comprehensive overview of microalgae-derived carotenoids and their applications in diverse industries Algal. Res. (IF 5.1) Pub Date : 2024-02-07 Shaikh Abdur Razzak
This article explores the rising interest in microalgae-derived carotenoids due to their unique properties and wide-ranging industrial potential. These pigments offer higher concentrations and greater diversity compared to other sources, particularly featuring carotenoids like astaxanthin, β-carotene, lutein, and zeaxanthin, known for their potent antioxidant properties that benefit human health. The
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Variations in the chemical composition of Norwegian cultivated brown algae Saccharina latissima and Alaria esculenta based on deployment and harvest times Algal. Res. (IF 5.1) Pub Date : 2024-02-07 Øystein Arlov, Katharina Nøkling-Eide, Olav Andreas Aarstad, Synnøve Strand Jacobsen, Anne-Mari Langeng, Ana R. Borrero-Santiago, Maren Sæther, Turid Rustad, Finn Lillelund Aachmann, Håvard Sletta
Brown algae exhibit large seasonal variation in their composition based on nutrient and sunlight access, as well as other environmental factors. The continued growth of brown algae cultivation in Europe is dependent on increased knowledge of these variances, to ensure optimal growth conditions, predict quality prior to harvest, and determine suitability of the biomasses' composition for different markets
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Microalgae cell wall hydrolysis using snailase and mechanical sand milling Algal. Res. (IF 5.1) Pub Date : 2024-02-07 Igor Carvalho Fontes Sampaio, Chadia Chahud Maestrello, Isabela Viana Lopes de Moura, Renata Estevam, Etiele Greque de Morais, Ivet Ferrer, Jairo Pinto de Oliveira, Servio Tulio Alves Cassini
The extraction of intracellular constituents from recalcitrant microalgae strains stands as a significant challenge and a crucial bottleneck in microalgae processing. This study presents a novel enzymatic approach coupling mechanical lysis through sand milling without commercial glass or zirconium beads, with subsequent snailase treatment, resulting in improved cell wall breakdown and increased release
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3G-biorefinery from olive oil pomace: Biocapture of CO2 from biogas and lipid production Algal. Res. (IF 5.1) Pub Date : 2024-02-06 Alicia Paz, José Manuel Domínguez, Attilio Converti, Alessandro Alberto Casazza
In the primary sector, the roadmap to success lies in enhancing sustainability and advancing process development within the framework of the circular economy. However, sectors such as that of olive oil have difficulty achieving these goals, but the integration of 2G and 3G-biorefineries could allow to overcome these issues. In this work, CO of biogas generated from olive pomace was biocaptured by using
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Effects of different thermal and thermochemical pretreatments on the anaerobic digestion of algal biomass cultivated in urban wastewater and collected with and without chemical coagulants Algal. Res. (IF 5.1) Pub Date : 2024-02-05 Renata Estevam, Ricardo Franci Gonçalves, Rodrigo Nunes Oss, Igor Carvalho Fontes Sampaio, Sérvio Túlio Cassini
Algal biomass cultivated in wastewater treatment systems is a promising feedstock for biogas production through anaerobic digestion. However, its rigid cell wall inhibits the hydrolysis of intracellular substances and limits its anaerobic digestibility. To improve anaerobic biodegradability, this study investigated the effects of different thermal and thermochemical pretreatments on the performance
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Combined toxicity of biochar with nanoplastics or silver nanoparticles toward Chlorella vulgaris Algal. Res. (IF 5.1) Pub Date : 2024-02-03 Hongye Li, Xiaojun Zhou, Ruixing Huang, Qiang He, Zhengsong Wu, Yuheng Huang, Zhiheng Li, Yu Liu, Xiaoliu Huangfu
Biochar is being increasingly used in the remediation of aquatic environments given its unique physicochemical properties. Biochar can coexist with various other nanoparticles in the environment and thus have a combined effect on susceptible organisms. In this study, we investigated the toxicity of corn stover biochar prepared at different temperatures to alone and in combination with polystyrene nanoplastics
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High auxin disrupts expression of cell-cycle genes, arrests cell division and promotes accumulation of starch in Chlamydomonas reinhardtii Algal. Res. (IF 5.1) Pub Date : 2024-02-03 María Agustina De Marco, Leonardo Curatti, Giselle María Astrid Martínez-Noël
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Non-indigenous seaweeds in the Iberian Peninsula, Macaronesia Islands (Madeira, Azores, Canary Islands) and Balearic Islands: Biodiversity, ecological impact, invasion dynamics, and potential industrial applications Algal. Res. (IF 5.1) Pub Date : 2024-01-29 Leonel Pereira
The term “non-indigenous species” (NIS) describes creatures that have colonized previously unoccupied parts of the globe. They have enormous ecological and economic problems everywhere because of their expanding presence. The success of biological invaders in this setting has recently been a hot topic. Of the thousands of marine NIS that have been introduced all over the world, seaweeds (marine macroalgae)
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The pros and cons of axenic cultures in cyanobacterial research Algal. Res. (IF 5.1) Pub Date : 2024-02-01 Rafael B. Dextro, Ana P.D. Andreote, Marcelo G.M.V. Vaz, Carolinne R. Carvalho, Marli F. Fiore
An ongoing issue among cyanobacteriologists is the sometimes-mandatory obligation of working with axenic cultures. Proponents of axenicity argue that it is the safest way to determine the true producer of a particular compound, as a contaminant-free pure culture possesses only the targeted strain's genetic material. For biotechnological applications, axenicity allows the produced biomass to be used
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From culture, harvest to pretreatment of microalgae and its high-value utilization Algal. Res. (IF 5.1) Pub Date : 2024-02-01 Yunfei Diao, Xuehan Gong, Donghai Xu, Peigao Duan, Shuzhong Wang, Yang Guo
Microalgae can be used to produce promising third-generation biomass fuel, the combustion of which produces carbon-neutral CO. However, economic sustainability has become a major obstacle limiting its development. Hence, it is necessary to optimize the upstream and downstream processes of microalgae processing techniques and find high-value utilization of microalgae biomass. In this work, a comprehensive
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Second stage of β-carotene biosynthesis under high light in Dunaliella salina is regulated by NADPH oxidase homologs Algal. Res. (IF 5.1) Pub Date : 2024-02-01 Minjae Kim, Yongtae Kim, Ji Woong Lee, EonSeon Jin, Gwang Hoon Kim
has received much attention as a cell factory for the industrial production of the well-known antioxidant β-carotene, but basic studies on the genetic background of the ROS signaling that mediates the biosynthesis and massive accumulation of β-carotene are still lacking. In this study, we show that the second stage of β-carotene accumulation in is mediated by ROS production by NADPH oxidase homologs
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A novel screening strategy utilizing aniline blue and calcofluor white to develop paramylon-rich mutants of Euglena gracilis Algal. Res. (IF 5.1) Pub Date : 2024-01-26 Keunho Kim, Jiwon Kang, Hyeonbeen Seo, Sunah Kim, Dong Yoon Kim, Younghyun Park, Jaecheul Yu, Taeho Lee
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Alterations in metalloprotein abundance under ocean warming in the marine green alga Micromonas pusilla using the mebipred predictive tool Algal. Res. (IF 5.1) Pub Date : 2024-01-28 Craig J. Dedman, Marjorie Fournier, Rosalind E.M. Rickaby
Metals are essential to life, required for the functioning of a substantial fraction of proteins. Marine phytoplankton drives the oceanic carbon cycle, influencing global biogeochemistry. These organisms rely on trace metal nutrients; however how trace nutrient demand will change under ocean warming is uncertain. The currently limited annotation of metalloproteins contributes to this lack of understanding
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Site suitability mapping for different seaweed cultivation systems along the coastal and marine waters of Bangladesh: A Generalized Additive Modelling approach for prediction Algal. Res. (IF 5.1) Pub Date : 2024-01-26 Rahanuma Tasnim, Subrata Sarker, Farjana Akter Chamily, Md. Mohiuddin, Afshana Ferdous, A.B.M. Mahfuzul Haque, Md Nahiduzzaman, Md Abdul Wahab, Md Moshiur Rahman, Md Asaduzzaman
While seaweed cultivation has reached an advanced stage in many Asian countries, this industry remains nascent in Bangladesh, hindered by a lack of comprehensive site suitability mapping. To address this gap, we employed the Generalized Additive Model (GAM) approach to develop habitat suitability maps for different seaweed cultivation systems encompassing the entire coastal and marine territorial areas
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Microalgae potential to protect from heavy metals-induced carcinogenicity Algal. Res. (IF 5.1) Pub Date : 2024-01-28 Hadjira Hamai-Amara, Haissam Abou-Saleh, Mohammad A. Al-Ghouti, Sergio Crovella, Imen Saadaoui, Lama Soubra
Toxic elements are present naturally in the environment; however, during the last century, their level has been continuously rising in the air, water, and soil due to anthropogenic activities, including urban runoff, pesticides and fertilizers, industrial effluents, and vehicle emissions. Once released in the environment, they are extremely stable, and therefore humans can get in contact with them