Growth and Physiological Features of Cyanobacterium Anabaena sp Strain PCC 7120 in a Glucose-Mixotrophic Culture

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	Growth and Physiological Features of Cyanobacterium Anabaena sp Strain PCC 7120 in a Glucose-Mixotrophic Culture
	Yu Guoce 1,2; Shi Dingji 3; Cai Zhaoling 2; Cong Wei 2; Ouyang Fan 2
刊名	CHINESE JOURNAL OF CHEMICAL ENGINEERING
	2011-02-01
卷号	19 期号:1 页码:108-115
关键词	cyanobacteria Anabaena sp PCC 7120 growth features mixotrophic culture photobioreactor
ISSN号	1004-9541
通讯作者	Yu, GC
英文摘要	Mixotrophic growth is one potential mode for mass culture of microalgae and cyanobacteria particularly suitable for the production of high value bioactive compounds and fine chemicals. The typical heterocystous cyanobacterium Anabaena sp. PCC 7120 was grown in the presence of exogenous glucose in light. Glucose improved the cell growth evidently, the maximal specific growth rate under mixotrophic condition (0.38 d(-1)) being 1.6-fold of that of photoautotrophic growth. Mixotrophy caused a variation in cellular pigment composition, increasing the content of chlorophyll a and decreasing the contents of carotenoid and phycobiliprotein relative to chlorophyll a. Fluorescence emission from photosystem II (PSII) relative to photosystem I was enhanced in mixotrophic cells, implying an increased energy distribution in PSII. Glucokinase (EC 2.7.1.2) activity was further induced in the presence of glucose. The mixotrophic culture was scaled up in a 15 L airlift photobioreactor equipped with an inner and an outer light source. A modified Monod model incorporating the specific growth rate and the average light intensity in the reactor was developed to describe cell growth appropriately. The understanding of mixotrophic growth and relevant physiological features of Anabaena sp. PCC 7120 would be meaningful for cultivation and exploitation of this important cyanobacterial strain.
WOS标题词	Science & Technology ; Technology
类目[WOS]	Engineering, Chemical
研究领域[WOS]	Engineering
关键词[WOS]	MICROALGA HAEMATOCOCCUS-PLUVIALIS ; SPIRULINA-PLATENSIS ; ENCLOSED PHOTOBIOREACTOR ; ENHANCED PRODUCTION ; SYNECHOCYSTIS SP ; LIGHT-INTENSITY ; FRUCTOSE ; ASTAXANTHIN ; ACETATE ; BATCH
收录类别	SCI
语种	英语
WOS记录号	WOS:000288235600017
公开日期	2013-11-07
内容类型	期刊论文
版本	出版稿
源URL	[http://ir.ipe.ac.cn/handle/122111/5080]
专题	过程工程研究所_生化工程国家重点实验室
作者单位	1.Tsinghua Univ, Inst Nucl & New Energy Technol, Beijing 100084, Peoples R China 2.Chinese Acad Sci, Inst Proc Engn, State Key Lab Biochem Engn, Beijing 100080, Peoples R China 3.Chinese Acad Sci, Inst Bot, Res Ctr Photosynth, Beijing 100093, Peoples R China
推荐引用方式 GB/T 7714	Yu Guoce,Shi Dingji,Cai Zhaoling,et al. Growth and Physiological Features of Cyanobacterium Anabaena sp Strain PCC 7120 in a Glucose-Mixotrophic Culture[J]. CHINESE JOURNAL OF CHEMICAL ENGINEERING,2011,19(1):108-115.
APA	Yu Guoce,Shi Dingji,Cai Zhaoling,Cong Wei,&Ouyang Fan.(2011).Growth and Physiological Features of Cyanobacterium Anabaena sp Strain PCC 7120 in a Glucose-Mixotrophic Culture.CHINESE JOURNAL OF CHEMICAL ENGINEERING,19(1),108-115.
MLA	Yu Guoce,et al."Growth and Physiological Features of Cyanobacterium Anabaena sp Strain PCC 7120 in a Glucose-Mixotrophic Culture".CHINESE JOURNAL OF CHEMICAL ENGINEERING 19.1(2011):108-115.