Evaluation of indigenous fresh water microalga Scenedesmus obtusus for feed and fuel applications: Effect of carbon dioxide, light and nutrient sources on growth and biochemical characteristics

被引：64

作者：

Chandra, T. Sarat ^{[1
,2
,3
]}

Deepak, R. S. ^{[1
]}

Kumar, M. Maneesh ^{[1
]}

Mukherji, S. ^{[3
]}

Chauhan, V. S. ^{[1
]}

Sarada, R. ^{[1
]}

Mudliar, S. N. ^{[1
]}

机构：

[1] CSIR Cent Food Technol Res Inst, Plant Cell Biotechnol Dept, Mysuru, Karnataka, India

[2] CSIR Natl Environm Engn Res Inst, Environm Biotechnol Div, Nagpur, Maharashtra, India

[3] Indian Inst Technol, Ctr Environm Sci & Engn, Bombay, Maharashtra, India

来源：

BIORESOURCE TECHNOLOGY | 2016年 / 207卷

关键词：

Scenedesmus obtusus; CO2; concentration; Nitrogen source; Photoperiod; Biodiesel; MIXOTROPHIC CULTIVATION; LIPID PRODUCTION; CHLORELLA-VULGARIS; CO2; INTENSITY; ACCUMULATION; BIOMASS; PHOTOPERIOD; SELECTION; WASTE;

D O I：

10.1016/j.biortech.2016.01.044

中图分类号：

S2 [农业工程];

学科分类号：

0828 ;

摘要：

Scenedesmus obtusus, a freshwater microalga, was evaluated for its growth and biochemical characteristics under various culture conditions. S. obtusus was tolerant at all tested CO2 concentrations up to 20%. Among the different nitrogen sources, urea showed enhanced biomass productivities up to 2-fold compared to control, where the nitrogen source was sodium nitrate. Light intensity and photoperiod had a significant effect on growth rate and biomass productivity. The growth rate was observed maximum under continuous light exposure at the light intensities, 30 lmol m (2) sec (1) and 60 lmol m (2) sec (1) The species was able to tolerate the salinity levels up to 25 mM NaCl, where, the increase in the concentration of NaCl suppressed the growth. Ammonium acetate and glycine showed better growth rate and biomass productivity indicating mixotrophic ability of S. obtusus. Supplementation of acetate and bicarbonate significantly enhanced the biomass productivity. Biodiesel properties of S. obtusus cultivated at various culture conditions were estimated. (C) 2016 Elsevier Ltd. All rights reserved.

引用

页码：430 / 439

页数：10

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