期刊
BIORESOURCE TECHNOLOGY
卷 180, 期 -, 页码 162-171出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2014.12.102
关键词
Microalgae; Temperature stress; Reactive oxygen species; Antioxidant enzymes; Biofuel
资金
- CSIR
- SERB, New Delhi [SB/FT/LS 332/2012]
- [CSC-0203]
- [CSC-0105]
Lack of control over temperature is one of the major issues in large scale cultivation of microalgae. Therefore, it is important to evaluate the effects of cultivation temperature on the growth and physiology of microalgae. In the present study, freshwater microalgae Acutodesmus dimorphus was grown at different temperature in continuous and two stage cultivation. Results revealed that during continuous cultivation A. dimorphus grows better at 35 degrees C than at 25 degrees C and 38 degrees C. At 35 degrees C, A. dimorphus produced 22.7% lipid (containing 59% neutral lipid) and 33.7% carbohydrate along with 68% increase in biomass productivity (23.53 mg/L/day) compared to 25 degrees C grown culture. Stress biomarkers like reactive oxygen species, antioxidant enzymes like catalase and ascorbate peroxidase and lipid peroxidation were also lowest in 35 degrees C grown culture which reveals that A. dimorphus is well acclimatized at 35 degrees C. (C) 2015 Elsevier Ltd. All rights reserved.
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