Development of Aurantiochytrium limacinum SR21 cultivation using salt-rich waste feedstock for docosahexaenoic acid production and application of natural colourant in food product

Hui Yi Leong, Chien An Su, Bo Sheng Lee, John Chi Wei Lan, Chung Lim Law, Jo-Shu Chang, Pau Loke Show

Research output: Contribution to journalArticle

Abstract

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.

LanguageEnglish
Pages30-36
Number of pages7
JournalBioresource Technology
Volume271
DOIs
Publication statusPublished - 2019 Jan 1

Fingerprint

Docosahexaenoic Acids
Feedstocks
Salts
salt
Acids
acid
Lipids
Betacyanins
lipid
microalga
Coloring
Pigments
Nutrients
pigment
brain
Brain
Coloring Agents
food product
nutrient
potassium phosphate

All Science Journal Classification (ASJC) codes

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

Cite this

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abstract = "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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Development of Aurantiochytrium limacinum SR21 cultivation using salt-rich waste feedstock for docosahexaenoic acid production and application of natural colourant in food product. / Leong, Hui Yi; Su, Chien An; Lee, Bo Sheng; Lan, John Chi Wei; Law, Chung Lim; Chang, Jo-Shu; Show, Pau Loke.

In: Bioresource Technology, Vol. 271, 01.01.2019, p. 30-36.

Research output: Contribution to journalArticle

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AU - Lan, John Chi Wei

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