Biodiesel quality and biochemical changes of microalgae Chlorella pyrenoidosa and Scenedesmus obliquus in response to nitrate levels.
Biodiesel quality and biochemical changes of microalgae Chlorella pyrenoidosa and Scenedesmus obliquus in response to nitrate levels.
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DOI：
10.1016/j.biortech.2014.08.017
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发表时间：
2014-10
影响因子：
11.4
通讯作者：
Hongqing Wu;X. Miao
中科院分区：
文献类型：
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作者：
Hongqing Wu;X. Miao
研究了不同硝酸盐水平下蛋白核小球藻和斜生栅藻的生化成分与生物柴油品质的关系。脂肪含量最高，为54.5%。蛋白核糖占47.7%。在无硝酸盐存在的情况下，可获得斜肌。在L−1时，碳水化合物含量最高，为0.3g，其值为40.7forc。蛋白核糖苷占42.5%。斜肌。蛋白质含量似乎与物种有关，大幅下降至11.2%Inc.蛋白核糖苷和8.8%Ins。在本研究中，在硝酸盐缺乏的情况下，斜面。C可获得较好的生物柴油质量(如十六烷值58、碘值69)。蛋白核苷硝酸盐缺失和。斜奎菌素0.3g和L−1，其中饱和脂肪酸含量最高(39.5forc.蛋白核，31.2for.和最低的不饱和脂肪酸(60.5forc.蛋白核，68.8。斜肌)。这些结果表明，在氮气存在下生长的微藻可能会限制生物柴油的质量。
Biodiesel quality associated with biochemical components ofChlorella pyrenoidosaandScenedesmus obliquusunder different nitrate levels were investigated. The highest lipid contents of 54.5% forC. pyrenoidosaand 47.7% forS. obliquuswere obtained in nitrate absence. Carbohydrate peaked at 0.3 g L−1with values of 40.7% forC. pyrenoidosaand 42.5% forS. obliquus. Protein content seemed species dependent, which decreased substantially to 11.2% inC. pyrenoidosaand 8.8% inS. obliquusunder nitrate absence in present research. Better biodiesel quality (e.g. cetane number >58, iodine value <69) could be obtained fromC. pyrenoidosain nitrate absence andS. obliquusin 0.3 g L−1, where the highest saturated fatty acids (39.5 forC. pyrenoidosa, 31.2 forS. obliquus) and the lowest unsaturated fatty acids (60.5 forC. pyrenoidosa, 68.8 forS. obliquus) were obtained. These results suggest that microalgae grown in the presence of nitrogen may limit biodiesel quality.