The effect of salinity on the growth and biochemical properties of Chlamydomonas mexicana GU732420 cultivated in municipal wastewater
- Authors
- Salama, El-Sayed; Abou-Shanab, Reda A. I.; Kim, Jung Rae; Lee, Sangho; Kim, Seong-Heon; Oh, Sang-Eun; Kim, Hyun-Chul; Roh, Hyun-Seog; Jeon, Byong Hun
- Issue Date
- Jun-2014
- Publisher
- TAYLOR & FRANCIS LTD
- Keywords
- Chlamydomonas Mexicana; fatty acids; glycerol; sodium chloride; wastewater
- Citation
- ENVIRONMENTAL TECHNOLOGY, v.35, no.12, pp.1491 - 1498
- Indexed
- SCIE
SCOPUS
- Journal Title
- ENVIRONMENTAL TECHNOLOGY
- Volume
- 35
- Number
- 12
- Start Page
- 1491
- End Page
- 1498
- URI
- https://scholarworks.bwise.kr/hanyang/handle/2021.sw.hanyang/159663
- DOI
- 10.1080/09593330.2013.871350
- ISSN
- 0959-3330
- Abstract
- A freshwater microalga Chlamydomonas mexicana was grown on municipal wastewater with different levels of salinity up to 400 mmol/L NaCl, and the biochemical properties were characterized after 10 days of cultivation. C. mexicana showed the higher specific growth rates for 100 and 200 mmol/L NaCl. Nitrogen was completely removed within 10 days as a result of algal growth promoted by the addition of 200–400 mmol/L NaCl. Phosphorus removal increased from 77–84% as the concentration of NaCl increased from 100 to 400 mmol/L. The highest removal of total inorganic carbon (66%) was obtained with the addition of 200 mmol/L NaCl. The lipid content increased from 17% to 38% as the concentration of NaCl increased from 0 to 400 mmol/L. The total fatty acid content and glycerol yield of C. mexicana increased 1.8- and 4-fold in wastewater amended with NaCl, respectively. Fatty acids accumulated in the algal biomass were mainly composed of palmitic (27–29%), γ-linolenic (27–30%), and linolelaidic acids (16–18%). The optimal condition for fatty acids production in C. mexicana was observed when the municipal wastewater was amended with 100–200 mmol/L NaCl with a simultaneous removal of nutrients.
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