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Title: Screening CoQ10 Producing Strains Among Yeast Collection at the VTCC and Study Phylogeny of Group with the
Authors: Tran, Thi Le Quyen
Dao, Thi Luong
Phan, Lac Dung
Keywords: Coenzyme Q10 (CoQ10);yeast;D1/D2 26S rDNA sequences
Issue Date: 2010
Publisher: NXB Nông Nghiệp
Series/Report no.: JSPS Asian Core Program (2009-2013);
Abstract: Coenzyme Q10 (CoQ10) functions in the mitochondrial respiratory chain and serves as a lipophilic antioxidant. There is an increasing interest in the use of CoQ10 as a nutritional supplement and cosmetic ingredient. It is known that CoQ10 is produced in a wide variety of organisms, from microorganisms such as bacteria and yeasts, to higher animals and plants. In this study, 80 yeast strains from the VTCC collection were screened for the activity of CoQ10 production by using the quantification method of Mikata and Yamada (1999). The ratio of strains having high activity(CoQ10 content ≥ 2 mgg1dry mass), average activity (CoQ10 content in the range of 1-2 mgg1dry mass) and low activity (CoQ10 content <1 mgg1dry mass) are 11.25%, 41.25% and 47.5%, respectively. Interestingly, significantly higher prortion of strains with high activity was found in the group of strains isolated from Phongnha-Kebang national park. D1/D226S rDNA sequence analysis of the group of strains with the highest activity showed that four strains belonged to the genus Cryptoccocus, the other strains were affiliated to genera Trichosporon, Dexomyces and Rhodosporium
Language: en
Format Extent: 1 p.
Appears in Collections:IMBT - Bài đăng tạp chí / Tham luận HN-HT

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