Selection and evaluation of CO2 tolerant indigenous microalga Scenedesmus dimorphus for unsaturated fatty acid rich lipid production under different culture conditions

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바이오화학분류

- 바이오정밀화학
  1. 용매
  2. 화학제품
- 화장품용 기능성소재
  1. 기능성
  2. 계면활성제⁄증점제
- 의료용 화학소재
  1. 건강보조식품
  2. 식품첨가제

논문

Selection and evaluation of CO2 tolerant indigenous microalga Scenedesmus dimorphus for unsaturated fatty acid rich lipid production under different culture conditions

학술지

Bioresource technology : biomass, bioenergy, biowastes, conversion technologies, biotransformations, production technologies

저자명

Vidyashankar, S.; Deviprasad, K.; Chauhan, V.S.; Ravishankar, G.A.; Sarada, R.

초록

Five indigenous microalgal strains of Scenedesmus, Chlorococcum, Coelastrum, and Ankistrodesmus genera, isolated from Indian fresh water habitats, were studied for carbon-dioxide tolerance and its effect on growth, lipid and fatty acid profile. Scenedesmus dimorphus strain showed maximum growth (1.5g/L) and lipid content (17.83% w/w) under CO2 supplementation, hence selected for detailed evaluation. The selected strain was alkaline adapted but tolerated (i) wide range of pH (5-11); (ii) elevated salinity levels (up to 100mM, NaCl) with low biomass yields and increased carotenoids (19.34mg/g biomass); (iii) elevated CO2 levels up to 15% v/v with enhancement in specific growth rate (0.137d-1), biomass yield (1.57g/L), lipid content (19.6% w/w) and CO2 biofixation rate (0.174gL-1d-1). Unsaturated fatty acid content (alpha linolenic acid) increased with CO2 supplementation in the strain.

발행연도

2013

발행기관

Elsevier Applied Science

ISSN

0960-8524

권

144

페이지

pp.28-37

DOI

10.1016/j.biortech.2013.06.054