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THE STUDY ON CAROTENOIDS PRODUCTION BY RHODOTORULA OF MARINE

PU Yin-fang

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Abstract

The Rhodotorula strain RY-8 with high carotenoids yields was screened from marine.The effect of carbon source, nitrogen source, volumes and pH on biomass and carotenoids yields of RY-8 were studied.The optimal conditions for carotenoids fermentation were studied with orthogonal test.The results showed that the optimal conditions was as follows:glucose 25 g/L, yeast extract 10 g/L, volumes 60 mL/250 mL, pH6.0. The biomass and carotenoids yields of strain RY-8 could be 48.8 g/L and 4.76 mg/L in optimal medium, 20.8 % and 38.4 % were higher than the first separation yields.

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What this paper is about

The Rhodotorula strain RY-8 with high carotenoids yields was screened from marine.The effect of carbon source, nitrogen source, volumes and pH on biomass and carotenoids yields of RY-8 were studied.The optimal conditions for carotenoids fermentation were studied with orthogonal test.The results showed that the optimal conditions was as follows:glucose 25 g/L, yeast extract 10 g/L, volumes 60 mL/250 mL, pH6.0. The biomass and carotenoids yields of strain RY-8 could be 48.8 g/L and 4.76 mg/L in optimal medium, 20.8 % and 38.4 % were higher than the first separation yields.

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Available abstract

The Rhodotorula strain RY-8 with high carotenoids yields was screened from marine.The effect of carbon source, nitrogen source, volumes and pH on biomass and carotenoids yields of RY-8 were studied.The optimal conditions for carotenoids fermentation were studied with orthogonal test.The results showed that the optimal conditions was as follows:glucose 25 g/L, yeast extract 10 g/L, volumes 60 mL/250 mL, pH6.0. The biomass and carotenoids yields of strain RY-8 could be 48.8 g/L and 4.76 mg/L in optimal medium, 20.8 % and 38.4 % were higher than the first separation yields.

Key concepts: Carotenoid, Rhodotorula, Carbon source, Strain (injury), Food science, Fermentation, Biomass (ecology), Chemistry

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