Rapid induction of edible lipids in Chlorella by mild electric stimulation
- Authors
- Choi, Sun-A; Lee, Soo Youn; Lee, Jiye; Cho, Jun Muk; Lee, Jin-Suk; Kim, Seung Wook; Kim, Dong-Yeon; Park, Se-Kook; Jin, Chang-Soo; Oh, You-Kwan
- Issue Date
- 11월-2019
- Publisher
- ELSEVIER SCI LTD
- Keywords
- Chlorella; Lipid induction; Electric stimulation; Triacylglycerol; Essential polyunsaturated fatty acids
- Citation
- BIORESOURCE TECHNOLOGY, v.292
- Indexed
- SCIE
SCOPUS
- Journal Title
- BIORESOURCE TECHNOLOGY
- Volume
- 292
- URI
- https://scholar.korea.ac.kr/handle/2021.sw.korea/62066
- DOI
- 10.1016/j.biortech.2019.121950
- ISSN
- 0960-8524
- Abstract
- In this work, a new stress-based method for rapid induction of triacylglycerol (TAG) and total and polyunsaturated fatty acid accumulations in Chlorella sp. by mild electric stimulation is presented. When a cathodic current of 31 mA (voltage: 4 V) was applied to the algal cells for 4 h, the TAG content of the electro-treated cells was sharply increased to a level 2.1 times that of the untreated control. The contents of the polyunsaturated linoleic (C18:2n6) and linolenic (C18:3n3) acids in the electro-treated cells were also 36 and 57% higher than those in the untreated cells, respectively. Cyclic voltammetry and various biochemical analyses indicate that TAG and fatty acid formations are electro-stimulated via de novo fatty acid biosynthesis and metabolic transformation in the Chlorella cells.
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Collections - College of Engineering > Department of Chemical and Biological Engineering > 1. Journal Articles
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