Effect of light conditions on mixotrophic cultivation of green microalgae

被引：137

作者：

Patel, Anil Kumar ^{[1
]}

Joun, Jae Min ^{[1
]}

Hong, Min Eui ^{[1
]}

Sim, Sang Jun ^{[1
]}

机构：

[1] Korea Univ, Dept Chem & Biol Engn, 145 Anam Ro, Seoul 02841, South Korea

来源：

BIORESOURCE TECHNOLOGY | 2019年 / 282卷

基金：

新加坡国家研究基金会;

关键词：

Microalgae; Chlorella; Mixotrophic; Autotrophic; Glucose; Glycerol; Acetic acid; CHLORELLA-VULGARIS; CHLAMYDOMONAS-REINHARDTII; HETEROTROPHIC CULTURES; CARBON-SOURCES; GROWTH; PHOTOSYNTHESIS; METABOLISM; BIOMASS; RESPIRATION; PROTOTHECOIDES;

D O I：

10.1016/j.biortech.2019.03.024

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Current research aimed to increase mixotrophic biomass from various organic carbon sources by exploring best light conditions. Three substrates glucose, acetic acid and glycerol were studied for their effects on mixotrophic microalgae cultivation under four light conditions. Light irradiance exhibited variability in growth response and photosynthetic efficiency based on type of substrates used in mixotrophic growth. Each substrate showed variability in light requirements for their effective assimilations. From growth responses, glucose and acetic acid respectively exhibited heterotrophic and mixotrophic (better growth in light) natures. Continuous light-deficient condition was adequate for effective mixotrophic growth as well as energy saving for glucose. However, light-sufficient condition required for effective acetic acid supported mixotrophic growth. Mixotrophic benefits from glycerol and its uptake by Chlorella protothecoides was negligible in all light conditions. Investigation of heterotrophic biomass contribution by various substrates in overall mixotrophic yield, glucose offered maximum approx. 43% contribution.

引用

页码：245 / 253

页数：9

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