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首页> 外文期刊>Bioprocess and Biosystems Engineering >Lipid production by microalgae Chlorella protothecoides with volatile fatty acids (VFAs) as carbon sources in heterotrophic cultivation and its economic assessment
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Lipid production by microalgae Chlorella protothecoides with volatile fatty acids (VFAs) as carbon sources in heterotrophic cultivation and its economic assessment

机译:微藻藻原藻中的挥发性脂肪酸(VFA)作为碳源的脂质生产及其营养价值

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摘要

Volatile fatty acids (VFAs) that can be derived from food wastes were used for microbial lipid production by Chlorella protothecoides in heterotrophic cultures. The usage of VFAs as carbon sources for lipid accumulation was investigated in batch cultures. Culture medium, culture temperature, and nitrogen sources were explored for lipid production in the heterotrophic cultivation. The concentration and the ratio of VFAs exhibited significant influence on cell growth and lipid accumulation. The highest lipid yield coefficient and lipid content of C. protothecoides grown on VFAs were 0.187 g/g and 48.7 %, respectively. The lipid content and fatty acids produced using VFAs as carbon sources were similar to those seen on growth and production using glucose. The techno-eco-nomic analysis indicates that the biodiesel derived from the lipids produced by heterotrophic C. protothecoides with VFAs as carbon sources is very promising and competitive with other biofuels and fossil fuels.
机译:可以从食物残渣中提取的挥发性脂肪酸(VFA)被原生营养小球藻用于异养培养中,以产生微生物脂质。在分批培养中研究了VFA作为脂质积累的碳源的用途。探索了培养基,培养温度和氮源,用于异养栽培中的脂质生产。 VFA的浓度和比例对细胞生长和脂质积累表现出显着影响。在VFA上生长的原壳线虫的最高脂质产量系数和脂质含量分别为0.187 g / g和48.7%。使用VFA作为碳源产生的脂质含量和脂肪酸类似于使用葡萄糖生长和产生的脂质和脂肪酸。技术经济分析表明,由异养的原壳梭菌以VFA作为碳源产生的脂质衍生的生物柴油非常有前途,并且与其他生物燃料和化石燃料竞争。

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