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The accumulation and metabolism of astaxanthin in Scenedesmus obliquus (chlorophyceae)
Qin, Shan1,2; Liu, Guo-Xiang1; Hu, Zheng-Yu1; Hu, ZY, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2008-08-01
Source PublicationPROCESS BIOCHEMISTRY
ISSN1359-5113
Volume43Issue:8Pages:795-802
AbstractThe biosynthesis and metabolism of astaxanthin in coenobium alga Scenedesmus obliquus were investigated using a two-stage culture. The first stage was for the analysis of biosynthesis and accumulation of astaxanthin in alga cells which were cultured under induction conditions (incubation at 30 degrees C and illumination of 180 mu mol m(-2) s(-1)) for 48 h. The composition of the secondary carotenoids in algal cells was analyzed and seven ketocarotenoids were identified. The results implied that S. obliquus synthesized astaxanthin from beta-carotene through three possible pathways. In the second stage, the cultures were transferred to normal conditions (incubation at 25 C and illumination of 80 mu mol m(-2) s(-1)) for 72 h. Algal cells accumulated more chlorophyll and biosynthesis of secondary carotenoids terminated, the content of secondary carotenoids decreased from 59.48 to 6.57%. The results inferred that accumulation and metabolism of astaxanthin could be controlled by cultivated conditions which also could lead the mobilization of secondary carotenoids to support the algal cell growth. The results also implied that presumed conversions from astaxanthin to lutein or antheraxanthin could be modulated by culturing conditions. (C) 2008 Published by Elsevier Ltd.; The biosynthesis and metabolism of astaxanthin in coenobium alga Scenedesmus obliquus were investigated using a two-stage culture. The first stage was for the analysis of biosynthesis and accumulation of astaxanthin in alga cells which were cultured under induction conditions (incubation at 30 degrees C and illumination of 180 mu mol m(-2) s(-1)) for 48 h. The composition of the secondary carotenoids in algal cells was analyzed and seven ketocarotenoids were identified. The results implied that S. obliquus synthesized astaxanthin from beta-carotene through three possible pathways. In the second stage, the cultures were transferred to normal conditions (incubation at 25 C and illumination of 80 mu mol m(-2) s(-1)) for 72 h. Algal cells accumulated more chlorophyll and biosynthesis of secondary carotenoids terminated, the content of secondary carotenoids decreased from 59.48 to 6.57%. The results inferred that accumulation and metabolism of astaxanthin could be controlled by cultivated conditions which also could lead the mobilization of secondary carotenoids to support the algal cell growth. The results also implied that presumed conversions from astaxanthin to lutein or antheraxanthin could be modulated by culturing conditions. (C) 2008 Published by Elsevier Ltd.
SubtypeArticle
KeywordScenedesmus Obliquus Secondary Carotenoids Accumulation Metabolism Astaxanthin Lc/ms
Department[Qin, Shan; Liu, Guo-Xiang; Hu, Zheng-Yu] Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China; [Qin, Shan] Chinese Acad Sci, Grad Univ, Beijing 100094, Peoples R China
Subject AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering, Chemical
DOI10.1016/j.procbio.2008.03.010
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine ; Technology
Funding OrganizationWuhan Government ; Wuhan Government ; Wuhan Government ; Wuhan Government
Indexed BySCI
Language英语
WOS Research AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering
WOS SubjectBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology ; Engineering, Chemical
WOS IDWOS:000258396700001
WOS KeywordALGA HAEMATOCOCCUS-PLUVIALIS ; MICROALGA CHLORELLA-ZOFINGIENSIS ; GREEN-ALGA ; PHAFFIA-RHODOZYMA ; CHLOROCOCCUM SP ; SECONDARY CAROTENOIDS ; HETEROTROPHIC CULTURE ; ENHANCED PRODUCTION ; LIGHT-INTENSITY ; BETA-CAROTENE
Funding OrganizationWuhan Government ; Wuhan Government ; Wuhan Government ; Wuhan Government
Citation statistics
Cited Times:43[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ihb.ac.cn/handle/152342/8036
Collection期刊论文
Corresponding AuthorHu, ZY, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
Affiliation1.Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China
2.Chinese Acad Sci, Grad Univ, Beijing 100094, Peoples R China
Recommended Citation
GB/T 7714
Qin, Shan,Liu, Guo-Xiang,Hu, Zheng-Yu,et al. The accumulation and metabolism of astaxanthin in Scenedesmus obliquus (chlorophyceae)[J]. PROCESS BIOCHEMISTRY,2008,43(8):795-802.
APA Qin, Shan,Liu, Guo-Xiang,Hu, Zheng-Yu,&Hu, ZY, Chinese Acad Sci, Inst Hydrobiol, State Key Lab Freshwater Ecol & Biotechnol, Wuhan 430072, Peoples R China.(2008).The accumulation and metabolism of astaxanthin in Scenedesmus obliquus (chlorophyceae).PROCESS BIOCHEMISTRY,43(8),795-802.
MLA Qin, Shan,et al."The accumulation and metabolism of astaxanthin in Scenedesmus obliquus (chlorophyceae)".PROCESS BIOCHEMISTRY 43.8(2008):795-802.
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