文献类型：期刊文献

英文题名：Changes of biomass, lipid content and fatty acids composition under a light-dark cyclic culture of Chlorella pyrenoidosa in response to different temperature

作者：Han, Feifei[1];Wang, Weiliang[1];Li, Yuanguang[1];Shen, Guomin[1];Wan, Minxi[1];Wang, Jun[2]

机构：[1]E China Univ Sci & Technol, Key Lab Bioreactor Engn, Shanghai 200237, Peoples R China;[2]Jiaxing Zeyuan Bioprod Ltd Co, Jiaxing 314006, Peoples R China

年份：2013

卷号：132

起止页码：182

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20130816037120);WOS:【SCI-EXPANDED(收录号:WOS:000316707200028)】；

基金：This research was funded by National Basic Research Program of China (973 Program: 2011CB200904), National Key Technologies R&D Program (2011BAD14802), National Natural Science Foundation of China (21076080), National Special Fund for State Key Laboratory of Bioreactor Engineering (2060204) and Grant No. GHME2011SW03.

语种：英文

外文关键词：Lipid content; Fatty acids composition; Temperature; Microalgae

摘要：For outdoor culture with light-dark cycle, the biomass and lipid losing at night resulted in lowering the biomass and lipid productivity. Previous studies focused on the contents of carbohydrate and protein in response to temperature for production of animal feed and nutritional supplements. In this study, the effects of temperature on the variations of biomass concentration, lipid content and fatty acids composition for production of biofuels were investigated under a light-dark cyclic culture. The results showed that 30 degrees C was the optimal daytime temperature for achieving high biomass and lipid; raising daytime temperature can lessen night biomass loss and stimulate lipid accumulation. Subsequently, outdoor culture strategy has been improved: keeping culture broth no less than 30 degrees C during the daytime. Consequently, the net biomass and lipid productivity were increased by 37.8% and 44.9% when compared to the former culture process in the same outdoor climatic conditions. (C) 2013 Elsevier Ltd. All rights reserved.