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Screening and effect evaluation of chemical inducers for enhancing astaxanthin and lipid production in mixotrophic Chromochloris zofingiensis

文献类型： 外文期刊

作者： Chen, Jun-Hui 1 ; Wei, Dong 1 ; Lim, Phaik-Eem 2 ; Xie, Jun 3 ; Chen, Wei Ning 4 ;

作者机构： 1.South China Univ Technol, Engn Res Ctr Starch & Vegetable Prot Proc, Guangdong Prov Key Lab Green Proc Nat Prod & Prod, Sch Food Sci & Engn,Minist Educ, Guangzhou 510640, Peoples R China

2.Univ Malaya, Inst Ocean & Earth Sci IOES, Kuala Lumpur 50603, Malaysia

3.Chinese Acad Fishery Sci, Pearl River Fisheries Res Inst, Key Lab Trop & Subtrop Fishery Resource Applicat, Guangzhou 510380, Peoples R China

4.Nanyang Technol Univ, Sch Chem & Biomed Engn, 62 Nanyang Dr, Singapore 637459, Singapore

关键词： Chromochloris zofingiensis; Astaxanthin; Lipid; Chemical inducer; Regulatory mechanism

期刊名称：JOURNAL OF APPLIED PHYCOLOGY （ 影响因子：3.215； 五年影响因子：3.612 ）

ISSN： 0921-8971

年卷期：

页码：

收录情况： SCI

摘要： A two-stage screening approach of chemical inducers was carried out to evaluate the positive effect on enhancing astaxanthin and lipid production in mixotrophic Chromochloris zofingiensis. The results demonstrated that oxidants were able to increase the astaxanthin content high up to 11.4 mg g(-1) biomass, while pyruvic acid promoted the cell growth and increased the contents of astaxanthin and lipids up to 10.7 mg g(-1) and 66.1% dry weight. The highest yield (87.0 mg L-1) and productivity (7.3 mg L-1 day(-1)) of astaxanthin were obtained in parallel with high lipid productivity (459.0 mg L-1 day(-1)). The correlations between the dosage effect of chemical inducers and metabolites variation were further examined by statistical analyses. Additionally, C. zofingiensis-derived lipids were estimated to be more viable and feasible as edible oils based on fatty acid characteristics assessment. The present work highlights the effective screening strategy of chemical inducers for enhancing astaxanthin and lipid production and the potential application in mixotrophic C. zofingiensis.

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