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Mar. Drugs 2019, 17(3), 161; https://doi.org/10.3390/md17030161

Isolation, Identification of Carotenoid-Producing Rhodotorula sp. from Marine Environment and Optimization for Carotenoid Production

1
Department of Pharmaceutical Microbiology, School of Life Science and Technology, China Pharmaceutical University, Nanjing 210009, China
2
Department of Microbiology, Nanjing Institute of Fisheries Science, Nanjing 210036, China
3
Bureau of Ocean and Fisheries of Jiangsu Province, Nanjing 210003, China
*
Authors to whom correspondence should be addressed.
Received: 20 January 2019 / Revised: 3 March 2019 / Accepted: 4 March 2019 / Published: 8 March 2019
(This article belongs to the Special Issue Marine Microbial Diversity as Source of Bioactive Natural Products)
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Abstract

Carotenoids are natural pigments found in plants and microorganisms. These important nutrients play significant roles in animal health. In contrast to plant production, the advantages of microbial fermentation of carotenoids are the lower media costs, fast growth rate of microorganisms, and the ease of culture condition control. In this study, a colony of red pigment-producing yeast, Rhodotorula sp. RY1801, was isolated from the sediment of marine environment with the potential to produce carotenoids. Optimization of carotenoid production in Rhodotorula sp. RY1801 was also discussed. The optimum conditions found for carotenoid production were as follows: temperature, 28 °C; pH 5.0; carbon source, 10 g/L glucose, nitrogen source, 10 g/L yeast extract, maximum concentration of 987 µg/L of total carotenoids was obtained. The results of this study show that the isolated yeast strain Rhodotorula sp. RY1801 can potentially be used in future as a promising microorganism for the commercial production of carotenoids. View Full-Text
Keywords: carotenoids; optimization; red yeast; Rhodotorula sp. carotenoids; optimization; red yeast; Rhodotorula sp.
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Zhao, Y.; Guo, L.; Xia, Y.; Zhuang, X.; Chu, W. Isolation, Identification of Carotenoid-Producing Rhodotorula sp. from Marine Environment and Optimization for Carotenoid Production. Mar. Drugs 2019, 17, 161.

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