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Characteristics of lipid biosynthesis of Chlorella pyrenoidosa under stress conditions

机译：胁迫条件下小黄生物合成脂质生物合成的特征

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摘要

Effects of high light, high salt, nitrogen and phosphorus deficiency on growth and lipid production of Chlorella pyrenoidosa were investigated in a flat-plate photoreactor, and the oil quality indexes such as CN, IV, SV, CFPP, DU, and LCSF were also evaluated. The results show that the growth of C. pyrenoidosa was inhibited under the stress conditions, but the intracellular lipid content was significantly increased. Moreover, the combustion performance, oxidation stability, low temperature fluidity, and other oil quality indicators under these nutrient stress conditions were significantly improved. Importantly, it is found that starch was preferentially synthesized by algal cells, while with the prolongation of stress time, starch was gradually degraded, and the degraded carbon skeleton was mainly used for lipid synthesis.
机译：在平板光反应器中研究了高光，高盐，氮和磷缺乏对小球藻芘的生长和脂质生产的影响，以及CN，IV，SV，CFPP，DU和LCSF等油质指标也是评估。结果表明，在应力条件下抑制了C. pyrenoidosa的生长，但细胞内脂质含量显着增加。此外，在这些营养应激条件下，燃烧性能，氧化稳定性，低温流动性和其他油质指标得到显着提高。重要的是，发现淀粉优先通过藻类细胞合成，同时随着应力时间的延长，淀粉逐渐降解，并且降解的碳骨架主要用于脂质合成。

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