Effect of light quality on growth rate, carbohydrate accumulation, fatty acid profile and lutein biosynthesis of Chlorella sp. AE10

被引：61
作者：
Li, Dengjin [1 ,2 ]
Yuan, Yizhong [1 ,2 ,3 ]
Cheng, Dujia [1 ,2 ,3 ]
Zhao, Quanyu [1 ,3 ,4 ]
机构：
[1] Chinese Acad Sci, Shanghai Adv Res Inst, 99 Haike Rd, Shanghai 201210, Peoples R China
[2] Univ Chinese Acad Sci, 19 Yuquan Rd, Beijing 100049, Peoples R China
[3] ShanghaiTech Univ, 100 Haike Rd, Shanghai 201210, Peoples R China
[4] Nanjing Tech Univ, Sch Pharmaceut Sci, 30 Puzhu South Rd, Nanjing 211816, Jiangsu, Peoples R China
来源：
BIORESOURCE TECHNOLOGY | 2019年 / 291卷
基金：
中国国家自然科学基金;
关键词：
Light emitting diodes; Macro-element starvation; Lutein; Fatty acid methyl ester content analysis; Algal biorefinery; EMITTING-DIODES LEDS; CARBON-DIOXIDE FIXATION; TOLERANT DESMODESMUS SP; PHOTOSYNTHETIC EFFICIENCY; MICROALGAE CHLORELLA; LIPID-CONTENT; WASTE-WATER; SP F51; CULTIVATION; CULTURE;
D O I：
10.1016/j.biortech.2019.121783
中图分类号：
S2 [农业工程];
学科分类号：
0828 ;
摘要：
Microalgae are feedstocks for multiple product development based on algal biorefinery concept. The effects of light quality (white, red and blue light emitting diodes) and macro-element starvations on Chlorella sp. AE10 were investigated under 20% CO2 and 850 mu mol m(-2) d(-1). Nitrogen and phosphorus starvations had negative effects on its growth rate. The biomass productivities were decreased from day 1 and the highest one was 1.90 g L-1 d(-1) under white light conditions. Phosphorus starvation promoted carbohydrate accumulation under three LED light sources conditions and the highest carbohydrate content was 75.9% using red light. Blue light increased lutein content to 9.58 mg g(-1). The content of saturated fatty acids was significantly increased from 37.51% under blue light and full culture medium conditions to 77.44% under blue light and nitrogen starvation conditions. Chlorella sp. AE10 was a good candidate for carbohydrate and lutein productions.
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页数：8
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