期刊
BIORESOURCE TECHNOLOGY
卷 271, 期 -, 页码 30-36出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.biortech.2018.09.093
关键词
Aurantiochytrium limacinum SR21; Microalgae biorefinery; Docosahexaenoic acid; Natural colourant; Salt-rich waste feedstock
资金
- Crops For the Future (CFF)
- University of Nottingham Malaysia Campus, Malasiya (UNMC) through the CFF-UNMC Doctoral Training Partnership (DTP) Scholarship Scheme
- Fundamental Research Grant Scheme (Malaysia) [FRGS/1/2015/SG05/UNIM/03/1, FP005-2013B]
- Ministry of Science, Technology and Innovation, Malasiya (MOSTI, Malasiya) [02-02-12-SF0256]
- Prototype Research Grant Scheme (Malaysia) [PRGS/2/2015/SG05/UNIM/03/1]
- Japan Society for the Promotion of Science, Japan
Microalgae biorefinery is presently receiving a lot of attention as driven by its production of high value-added products. In this study, an oleaginous microalga Aurantiochytrium limacinum SR21 was cultured for docosahexaenoic acid (DHA) production using 20% (w/v) of K2HPO4-waste feedstock to replace 0.005% (w/v) of KH2PO4 in the flask culture. DHA is an essential nutrient for human's brain functionalities. Collectively, the K2HPO4-waste feedstock with working concentration of 0.005% (w/v) in the cultivation prompted a higher lipid content (8.29%) and DHA production (128.81 mg.L-1). Moreover, natural plant pigment products containing stabilised betacyanins were utilised as natural red colourants for hard candy production. This study develops microalgal cultivation using salt-rich waste feedstock for a higher lipid and DHA content as well as application of natural colouring agents in food products.
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