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Characterization of gel beads used for immobilization of chlorella vulgaris and enhancement its density for lipid production

N. R., Abu Sepian and Nur Hidayah, Mat Yasin and Norazwina, Zainol (2020) Characterization of gel beads used for immobilization of chlorella vulgaris and enhancement its density for lipid production. In: IOP Conference Series: Materials Science and Engineering; 5th International Conference of Chemical Engineering and Industrial Biotechnology, ICCEIB 2020, 9 - 11 August 2020 , Kuala Lumpur, Malaysia. pp. 1-13., 991 (1). ISSN 1757-8981 (Print), 1757-899X (Online)

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The success of microalgae immobilized in gel beads for lipid production heavily relies on the characteristics of the matrices employed. This study aims to determine cell density and characteristics of immobilized Chlorella vulgaris cells that contributed to the viability of the cells within beads. The new combined matrices with volumetric ratios (Matrices:Microalgae) namely, (1) mixed matrices, SACMCCA (0.3:1) (2) SACA (0.3:1) (3) SACMC (1:1) were proposed in this study and (4) SA (1:1) (sodium alginate, SA; calcium alginate, CA; sodium carboxymethyl cellulose, CMC) as a control experiment. The size of the beads, membrane thickness and chemical compound of these beads were examined. The cell density demonstrated that SACMCCA beads presented the highest value of 1.72 ± 0.5 × 109 cells/mL and lipid yield (30.43 ± 0.30 %) compared to SACA (24.29 ± 0.50 %), SACMC (13.00 ± 0.60 %) and SA (6.71 ± 0.50 %). The characterization had provided important characteristics for a successful entrapment of Chlorella vulgaris. In addition, the combination of single matrices had improved the cell density and lipid production for future applications in the biofuel industry.

Item Type: Conference or Workshop Item (Lecture)
Additional Information: Indexed by Scopus
Uncontrolled Keywords: Microalgae; Chlorella vulgaris; Biofuel industry;
Subjects: T Technology > TP Chemical technology
Faculty/Division: Centre of Excellence: Centre of Excellence for Advanced Research in Fluid Flow
Institute of Postgraduate Studies
College of Engineering
Faculty of Chemical and Process Engineering Technology
Depositing User: Mrs Norsaini Abdul Samat
Date Deposited: 26 Jul 2021 13:56
Last Modified: 26 Jul 2021 13:56
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