期刊
INDIAN JOURNAL OF MICROBIOLOGY
卷 61, 期 3, 页码 331-337出版社
SPRINGER
DOI: 10.1007/s12088-021-00960-4
关键词
Biotin; Thiamine; Urea; Xylitol; Zn2+
资金
- NRF - Ministry of Science, ICT & Future Planning [NRF-2019R1F1A1063131, NRF-2020R1I1A1A01073483, NRF-2019R1C1C1009766]
- KU Research Professor program of Konkuk University
- Konkuk University Researcher Fund
This study investigates the medium requirements to increase xylitol production using Candida tropicalis. Single addition or omission of medium components reveals the importance of Zn2+ for cell growth and xylitol production, as well as the necessity of biotin and thiamine for the growth of Candida tropicalis. Surprisingly, the presence of only biotin in the medium results in less growth but significantly higher xylitol release.
In this study, the medium requirements to increase the production of xylitol by using Candida tropicalis (CT) have been investigated. The technique of single addition or omission of medium components was applied to determine the nutritional requirements. The addition of amino acids such as Asp, Glu, Gln, Asn, Thr, and Gly had no significant effect on CT growth. However, in the absence of other metal ions, there was a higher concentration of cell growth and xylitol production when only Zn2+ was present in the medium. The analysis of various vitamins unveiled that biotin and thiamine were the only vitamins required for the growth of CT. Surprisingly, when only biotin was present in the medium as a vitamin, there was less growth of CT than when the medium was complete, but the amount of xylitol released was significantly higher. Overall, this study will increase the xylitol production using the single omission or addtion technique.
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