Production of β-carotene-enriched rice bran using solid-state fermentation of rhodotorula glutinis

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Publication Details

Author listRoadjanakamolson M., Suntornsuk W.

PublisherThe Korean Society for Applied Microbiology

Publication year2010

JournalJournal of Microbiology and Biotechnology (1017-7825)

Volume number20

Issue number3

Start page525

End page531

Number of pages7

ISSN1017-7825

URLhttps://www.scopus.com/inward/record.uri?eid=2-s2.0-77954274231&partnerID=40&md5=8a4ef3d853b6d54486167cf0bfd709f4

LanguagesEnglish-Great Britain (EN-GB)


Abstract

This work was aimed at utilizing rice bran as a substrate for β-carotene production by Rhodotorula glutinis DM 28 under optimized conditions of solid-state fermentation. The biomass and β-carotene content of Rhodotorula glutinis DM 28 grown on rice bran as a sole substrate under solidstate fermentation were 54 g/kg rice bran and 1.65 mg/kg rice bran, respectively. Its biomass and β-carotene content, however, could be improved by 60% and 30%, respectively, using the Central Composite Design for the optimization of its cultivation conditions. The optimized conditions obtained were a pH of 5, a moisture content of 70% (w/w), and a carbon-to-nitrogen ratio of 4. Under these conditions, rice bran containing R. glutinis DM 28 had nutritional values of β-carotene, protein, and fat higher than those of rice bran alone. Yeast-grown rice bran could be suitable, therefore, to use as a β-carotene-enriched supplement in animal feeds.


Keywords

Animal feed


Last updated on 2022-06-01 at 15:41