文献类型：期刊文献

英文题名：Enhancement of microalgal biomass and lipid productivities by a model of photoautotrophic culture with heterotrophic cells as seed

作者：Han, Feifei[1];Huang, Jianke[1];Li, Yuanguang[1];Wang, Weiliang[1];Wang, Jun[2];Fan, Jianhua[1];Shen, Guomin[1]

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

年份：2012

卷号：118

起止页码：431

外文期刊名：BIORESOURCE TECHNOLOGY

收录：;EI(收录号：20122815234421);WOS:【SCI-EXPANDED(收录号:WOS:000307259600058)】；

基金：This research was funded by National Basic Research Program of China (973 Program: 2011CB200904), National Key Technologies R&D Program (2011BAD14B02), 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：Biofuels; Chlorella spp; Heterotrophic seed; Biomass and lipid productivities; Neutral lipid

摘要：For overcoming the long period of seed cultured photoautotrophically and inadequate cell supply for the inoculation of microalgae photoautotrophic cultivation, a model for the photoautotrophic culture of three Chlorella species with heterotrophic cells as seed was investigated. The model can not only take advantages of rapid cell growth in heterotrophic process for preparation of cells as seed but also increase the biomass and lipid productivities of the microalgae cultivated photoautotrophically. The results showed that biomass productivities of Chlorella pyrenoidosa, Chlorella ellipsoidea and Chlorella vulgaris cultured by heterotrophy were 20.9, 26.9 and 25.2 times higher than those by photoautotrophy in seed culturing period. In the subsequent photoautotrophic culture, the biomass and lipid productivities of C. pyrenoidosa, C. ellipsoidea and C. vulgaris with heterotrophic seed were 1.91, 1.51, 1.48 and 1.66, 1.37, 1.42 times higher than those with photoautotrophic seed. Furthermore, the culture model was also carried out successfully outdoor. (c) 2012 Elsevier Ltd. All rights reserved.