GIEC OpenIR  > 中国科学院广州能源研究所
Enhanced Accumulation of Carbohydrate and Starch in Chlorella zofingiensis Induced by Nitrogen Starvation
Zhu, Shunni1; Wang, Yajie1,2; Huang, Wei1,2; Xu, Jin1; Wang, Zhongming1; Xu, Jingliang1; Yuan, Zhenhong1,3
2014-12-01
Source PublicationAPPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
Volume174Issue:7Pages:2435-2445
AbstractThough less attention has been paid to microalgae as a feedstock for bioethanol production, many microalgae seem to have this potential since they contain no lignin, minor hemicellulose, and abundant carbohydrate. The objective of this study was to investigate the effect of nitrogen starvation on carbohydrate and starch accumulation in green microalga Chlorella zofingiensis and assess the feasibility of using this microalga as a bioethanol feedstock. The results showed that the specific growth rate under nitrogen starvation (0.48 day(-1)) was much lower than that under nitrogen repletion (1.02 day(-1)). However, nitrogen starvation quickly induced the accumulation of carbohydrate, especially starch. After merely 1 day of nitrogen starvation, carbohydrate and starch increased 37 % and 4.7-fold, respectively. The highest carbohydrate content reached 66.9 % of dry weight (DW), and 66.7 % of this was starch. In order to obtain enough carbohydrate productivities for bioethanol production, two-stage cultivation strategy was implemented and found to be effective for enhancing biomass, carbohydrate, and starch simultaneously. The optimal biomass, carbohydrate, and starch productivities of C. zofingiensis were obtained after 5 days of cultivation, and their values were 699, 407, and 268 mg L-1 day(-1), respectively.
SubtypeArticle
KeywordChlorella Zofingiensis Nitrogen Starvation Starch Carbohydrate Bioethanol
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s12010-014-1183-9
WOS Subject ExtendedBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS KeywordOBLIQUUS CNW-N ; MICROALGA TETRASELMIS-SUBCORDIFORMIS ; NUTRIENT LIMITATION ; CO2 FIXATION ; PYROPHOSPHORYLASE ; CULTIVATION ; VULGARIS ; GROWTH
Indexed BySCI
Language英语
WOS SubjectBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS IDWOS:000345331100008
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/10755
Collection中国科学院广州能源研究所
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Guangzhou 510640, Guangdong, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Zhu, Shunni,Wang, Yajie,Huang, Wei,et al. Enhanced Accumulation of Carbohydrate and Starch in Chlorella zofingiensis Induced by Nitrogen Starvation[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2014,174(7):2435-2445.
APA Zhu, Shunni.,Wang, Yajie.,Huang, Wei.,Xu, Jin.,Wang, Zhongming.,...&Yuan, Zhenhong.(2014).Enhanced Accumulation of Carbohydrate and Starch in Chlorella zofingiensis Induced by Nitrogen Starvation.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,174(7),2435-2445.
MLA Zhu, Shunni,et al."Enhanced Accumulation of Carbohydrate and Starch in Chlorella zofingiensis Induced by Nitrogen Starvation".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY 174.7(2014):2435-2445.
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