Journal of Microbiology and Biotechnology
- Volume 1 Issue 1
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- Pages.75-78
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- 1991
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- 1017-7825(pISSN)
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- 1738-8872(eISSN)
Effect of Carbon Source and Carbon to Nitrogen Ratio on Carotenogenesis of Rhodotorula glutinis
Abstract
The carotenoid biosynthesis of a red oleaginous yeast, Rhodotorula glutinis was significantly changed when the yeast was grown on different carbon substrates. The highest carotenoid production was obtained on culture medium containing glucose when the carbon to nitrogen ratio (C/N ratio) was adjusted to 25.7. Galactose stimulated the biosynthetic rate of torularhodin, a xanthophyll component of the yeast. With decreasing C/N ratio of the medium, significant changes of