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Nutritional evaluation, bioconversion performance and phylogenetic assessment of black soldier fly (Hermetia illucens, Linn. 1758) larvae valorised from food waste
Environmental Technology & Innovation ( IF 6.7 ) Pub Date : 2021-07-10 , DOI: 10.1016/j.eti.2021.101783
Sanal Ebeneezar 1 , Linga Prabu D. 1 , Tejpal C.S. 2 , Jeena N.S. 1 , Summaya R. 1 , Chandrasekar S. 1 , Sayooj P. 1 , Vijayagopal P. 1
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The black soldier fly (H. illucens) is a potential candidate species for the sustainable bioconversion of organic matter that endorses the concept of a circular economy. The nutritional evaluation of black soldier fly larvae (BSFL) reared in a food waste bioconversion system revealed a crude protein content of 41.44 ± 0.17 g/100g and crude lipid content of 35.69 ± 0.24 g/100g. Among the mineral content in BSFL, Ca (22.95 ± 0.91 g/kg) was present in the highest concentration, followed by P (5.47 ± 0.06 g/kg) and K (4.78 ± 0.081 g/kg). The fatty acid profile of BSFL oil showed a higher level of saturated fatty acids than unsaturated, with the highest level of lauric acid (C12:0). Vitamins such as retinol, vitamin D3, α- tocopherol, β- tocopherol, and γ- tocopherol were detected in larval oil. α- tocopherol was present in the highest concentration (80.39±4.02μg/g). The bioconversion performance of BSFL in terms of various parameters such as biomass yield, bioconversion efficiency, substrate reduction, and nutritional composition was evaluated. The bio-waste to larvae conversion ratio was 6.80, with a bioconversion efficiency of 24.31 ± 0.62 %. The overall substrate reduction by BSFL was 72.38 ± 1.37 %. In addition to amplification of mitochondrial partial COI gene for larval identification, comparative and phylogenetic analyses were performed. The phylogenetic analysis revealed that the specific haplotypic populations from Palaearctic, Oriental, Afrotropic, Australasian, and Nearctic biogeographic realms establish a closer relationship or single ancestral origin with the Indian haplotypes, which is probably associated with anthropogenic factors resulting in the cosmopolitan distribution of this new world originated wide-spectrum fly.



中文翻译:

从食物垃圾中提取的黑水虻( Hermetia illucens, Linn. 1758) 幼虫的营养评价、生物转化性能和系统发育评估

黑水H. illucens)是支持循环经济概念的有机物质可持续生物转化的潜在候选物种。在餐厨垃圾生物转化系统中饲养的黑水虻幼虫 (BSFL) 的营养评估显示,其粗蛋白含量为 41.44 ± 0.17 g/100g,粗脂质含量为 35.69 ± 0.24 g/100g。在 BSFL 的矿物质含量中,Ca (22.95 ± 0.91 g/kg) 的浓度最高,其次是 P (5.47 ± 0.06 g/kg) 和 K (4.78 ± 0.081 g/kg)。BSFL 油的脂肪酸谱显示饱和脂肪酸含量高于不饱和脂肪酸,月桂酸含量最高 (C12:0)。维生素,如视黄醇、维生素D3, α- 生育酚, β- 生育酚,和 γ- 在幼虫油中检测到生育酚。 α- 生育酚的浓度最高 (80.39±4.02μ克/克)。评估了 BSFL 在各种参数方面的生物转化性能,如生物质产量、生物转化效率、底物减少和营养成分。生物废物与幼虫的转化率为 6.80,生物转化效率为 24.31 ± 0.62 %。BSFL 的总体底物减少量为 72.38 ± 1.37 %。除了用于幼虫鉴定的线粒体部分 COI 基因的扩增外,还进行了比较和系统发育分析。系统发育分析表明,来自古北区、东方区、非洲热带区、澳大拉西亚区和近北区生物地理领域的特定单倍型种群与印度单倍型建立了更密切的关系或单一祖先起源,

更新日期:2021-07-12
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