当前位置: X-MOL 学术Bioresource Technol. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Improving the content of high value compounds in Nordic Desmodesmus microalgal strains
Bioresource Technology ( IF 11.4 ) Pub Date : 2022-06-16 , DOI: 10.1016/j.biortech.2022.127445
Sanjeet Mehariya 1 , Martin Plöhn 1 , Antonio Leon-Vaz 2 , Alok Patel 3 , Christiane Funk 1
Affiliation  

Nordic Desmodesmus microalgal strains (2–6) and (RUC-2) were exposed to abiotic stress (light and salt) to enhance lipids and carotenoids. The biomass output of both strains increased by more than 50% during light stress of 800 μmol m−2 s−1 compared to control light. The biomass of Desmodesmus sp. (2–6) contained most lipids (15% of dry weight) and total carotenoids (16.6 mg g−1) when grown at moderate light stress (400 μmol m−2 s−1), which further could be enhanced up to 2.5-fold by salinity stress. Desmodesmus sp. (RUC-2) exhibited maximal lipid (26.5%) and carotenoid (43.8 mg L−1) content at light intensities of 400 and 100 μmol m−2 s−1, respectively. Salinity stress stimulated lipid accumulation by 39%. Nordic Desmodesmus strains therefore are not only able to tolerate stress conditions, but their biomass considerably improves under stress. These strains have high potential to be used in algal bio-factories on low-cost medium like Baltic seawater.



中文翻译:

提高北欧荆棘藻微藻菌株中高价值化合物的含量

Nordic Desmodesmus微藻菌株 (2-6) 和 (RUC-2) 暴露于非生物胁迫(光和盐)以增强脂质和类胡萝卜素。与对照光相比,在 800 μmol m -2 s -1的光胁迫下,两种菌株的生物量输出增加了 50% 以上。Desmodesmus sp的生物量。(2-6)在中等光胁迫 (400 μmol m -2 s -1 ) 下生长时含有大部分脂质 (15% 干重) 和总类胡萝卜素 (16.6 mg g -1 ),可进一步提高至 2.5 - 因盐度压力而倍增。Desmodesmus sp。(RUC-2) 表现出最大的脂质 (26.5%) 和类胡萝卜素 (43.8 mg L -1) 含量分别为 400 和 100 μmol m -2 s -1的光强。盐分胁迫刺激了 39% 的脂质积累。因此,北欧Desmodesmus菌株不仅能够耐受压力条件,而且它们的生物量在压力下显着提高。这些菌株具有很高的潜力,可用于波罗的海海水等低成本介质的藻类生物工厂。

更新日期:2022-06-16
down
wechat
bug