Growth Parameters for the Yeast Rhodotorula rubra Grown in Peat Extracts

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概要

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• A newly-isolated strain of Rhodotorula rubra, which has been reported to have the ability to synthesize high concentrations of carotenoids, has been adapted and grown in liquid phase using acid extracts of peat as the main substrate source. The growth of the yeast was studied as a function of the medium carbohydrate concentration, pH, time, temperature, and agitation rate. The optimal growth conditions were found to be an initial total carbohydrate concentration of 15 g・l^<-1>, a pH of 5.5,an incubation time of 3.5 d, a temperature of 22℃, and an agitation rate of 200 rpm. Under those conditions, the growth parameters were : approximately 4.8 g・l^❲-1❳ dry biomass, 70% yield and 32% efficiency. Also, a total β-carotene concentration of 1,256 μg・g^<-1> dry biomass was produced by the yeast.

• 社団法人日本生物工学会の論文
• 1993-10-25

著者

• Martin Antonio

  Department Of Biochemistry Memorial University Of Newfoundland

• LU CHUN

  Department of Biochemistry, Memorial University of Newfoundland

• PATEL THAKOR

  Department of Biochemistry, Memorial University of Newfoundland

• Lu C

  National Chung Hsing Univ. Taichung Twn

• Patel Thakor

  Department Of Biochemistry Memorial University Of Newfoundland

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