Abstract Microalgae have been recognized as a potential feedstock for biodiesel production due to their fast growth rate and ability to accumulate lipid within their cells. However, high lipid content and biomass productivity are usually difficult to achieve simultaneously. Instead of stressing the microalgae during cultivation stage, the stress environment such as nutrient starvation, salinity and light effect were introduced to Chlorella vulgaris after harvesting to study the effect on their lipid content. From the results attained, one day of nutrient starvation with 6.0 g/L of salinity stress under dark room condition had shown the highest lipid content of 38.8% (dry weight basis). The lipid content was recorded at 40.28% (dry weight basis) when the working volume was scaled up. In addition, the fatty acids identified in the extracted microalgae lipid were mainly consisted of linoleic, linolenic and palmitic acid, which were commonly found in corn oil, soybean oil and sunflower oil.

中文翻译：

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应激环境对收获后微藻脂质积累的影响

摘要 微藻因其快速的生长速度和在细胞内积累脂质的能力而被认为是生产生物柴油的潜在原料。然而，高脂质含量和生物质生产力通常难以同时实现。普通小球藻采收后，不是在培养阶段对微藻进行胁迫，而是将营养饥饿、盐度和光效应等胁迫环境引入到普通小球藻中，以研究对其脂质含量的影响。从获得的结果来看，在暗室条件下，在 6.0 g/L 盐度胁迫下营养饥饿一天，其脂质含量最高，为 38.8%（干重）。当工作体积按比例增加时，脂质含量记录为 40.28%（干重）。此外，