气生微藻Heveochlorella sp. Yu作为生物柴油 生产原料的特性研究Characteristics of an aerial microalgae Heveochlorella sp. Yu as feedstock for biodiesel
2022
封雍婕，崔娜，赵鹏 FENG Yongjie, CUI Na, ZHAO Peng
为了拓展生物柴油原料来源，以气生微藻Heveochlorella sp. Yu为研究对象，通过测定其生长曲线、生物量、油脂产率、沉降率等，对其作为生物柴油生产原料的特性进行研究。结果表明，培养后气生微藻Heveochlorella sp. Yu的生物量为4.14 g/L，油脂含量为39.43%，油脂产率为181.38 mg/(L·d)，2 h的自然沉降率为65.28%（可大幅浓缩水体，降低微藻的采收成本）。此外，该微藻能够产生γ-氨基丁酸（GABA），含量为9.50 mg/g。气生微藻Heveochlorella sp. Yu具有成为生物柴油原料的潜力，具有微藻油脂的开发价值。 In order to expand the source of biodiesel feedstock, the characteristics of aerial microalgae Heveochlorella sp. Yu as raw material for biodiesel were studied by measuring its growth curve, biomass, lipid productivity, sedimentation rate, etc. The results showed that the microalgae biomass after cultivation was 4.14 g/L, the lipid content was 39.43%, and the lipid productivity was 181.38 mg/(L·d). The natural sedimentation rate of aerial microalgae Heveochlorella sp. Yu within 2 h was 65.28% (which could greatly concentrate the water body and reduce the harvesting cost of microalgae). In addition, aerial microalgae Heveochlorella sp. Yu could produce gamma-aminobutyric acid (GABA) with a content of 9.50 mg/g. The aerial microalgae Heveochlorella sp. Yu had the potential to be used as a feedstock for biodiesel and had the development value of microalgae lipid.
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