Scenedesmus obliquus CNW-N as a potential candidate for CO2 mitigation and biodiesel production
Scenedesmus obliquus CNW-N as a potential candidate for CO2 mitigation and biodiesel production
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DOI：
10.1016/j.biortech.2010.06.112
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发表时间：
2010-11-01
影响因子：
11.4
通讯作者：
Chang, Jo-Shu
中科院分区：
文献类型：
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作者：
Ho, Shih-Hsin;Chen, Wen-Ming;Chang, Jo-Shu
本研究旨在通过两阶段培养策略获得具有较高CO2消耗能力和油脂生产能力的本地微藻Scenedesmus granulus CNW-N。首先使用营养丰富的培养基在10%CO2下培养微生物菌株以促进细胞生长，然后在营养缺乏的条件下引发脂质积累。最佳生物量生产率、油脂生产率和CO2消耗速率分别为292.50 mg L-1d（-1）、78.73 mg L-1d（-1）（油脂含量占生物量干重的38.9%）和549.90 mg L-1d（-1）。这一性能优于大多数相关研究的结果。在营养缺乏条件下，微藻油脂主要由C16/C18脂肪酸组成，占总脂肪酸的89%，适合于生物柴油的合成。(C)2010爱思唯尔有限公司版权所有。
This study aimed to achieve higher CO2 consumption ability and lipid productivity of an indigenous microalgal isolate Scenedesmus obliquus CNW-N by a two-stage cultivation strategy. The microalga strain was first cultivated with 10% CO2 using a nutrient-rich medium to promote cell growth, which was followed by a nutrient-deficient condition to trigger lipid accumulation. The optimal biomass productivity, lipid productivity, and CO2 consumption rate were 292.50 mg L-1 d(-1), 78.73 mg L-1 d(-1) (38.9% lipid content per dry weight of biomass), and 549.90 mg L-1 d(-1), respectively. This performance is superior to the results from most of the related studies. Under the nutrient-deficient condition, the microalgal lipid was mainly composed of C16/C18 fatty acids (accounting for 89% of total fatty acids), which is suitable for biodiesel synthesis. (C) 2010 Elsevier Ltd. All rights reserved.