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Fatty acid profile from immobilised Chlorella vulgaris cells in different matrices

Noor Raihana, Abu Sepian and Nur Hidayah, Mat Yasin and N., Zainol and N. H., Rushan and A. L., Ahmad (2019) Fatty acid profile from immobilised Chlorella vulgaris cells in different matrices. Environmental Technology, 40 (9). pp. 1-9. ISSN 0959-3330

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The immobilisation of Chlorella vulgaris 211/11B entrapped in combinations of natural matrices to simplify the harvesting process was demonstrated in this study. Three combinations of matrices composed of calcium alginate (CA) and sodium alginate (SA), sodium carboxymethyl cellulose (CMC) and SA, and mixed matrices (SA, CA, and CMC) were investigated. The number of cells grown for each immobilised matrix to microalgae volume ratios (0.2:1–1:1) were explored and compared with using SA solely as a control. The optimum volume ratios obtained were 1:1 for SA, 0.3:1 for CA and SA, 1:1 for CMC and SA, and 0.3:1 for mixed matrices. The immobilised microalgae of mixed matrices exhibited the highest number of cells with 1.72 × 109 cells/mL at day 10 and 30.43% of oil extraction yield followed by CA and SA (24.29%), CMC and SA (13.00%), and SA (6.71%). Combining SA, CA, and CMC had formed a suitable structure which improved the growth of C. vulgaris and increased the lipid production compared to the immobilisation using single matrix. Besides, the fatty acids profile of the oil extracted indicates a high potential for biodiesel production.

Item Type: Article
Uncontrolled Keywords: Chlorella vulgaris; immobilisation; matrices; fatty acid; sodium alginate
Subjects: T Technology > TP Chemical technology
Faculty/Division: Faculty of Chemical & Natural Resources Engineering
Institute of Postgraduate Studies
Depositing User: Mrs. Neng Sury Sulaiman
Date Deposited: 25 Feb 2019 04:31
Last Modified: 28 Jul 2020 08:01
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