Carotenoid production by Rhodotorula rubra cultivated in sugarcane juice, molasses, and syrup

Food Science and Technology (Campinas)

David Banzatto¹  Lidyane Aline De Freita¹  Márcia Justino Rossini Mutton¹ 

[1] ,Universidade Estadual Paulista Júlio de Mesquita Filho Departamento de Tecnologia Jaboticabal SP ,Brasil

关键词: torulene;    torularhodin;    β-carotene;    yeasts;    toruleno;    torularrodina;    β-caroteno;    levedura;   

DOI  :  10.1590/S0101-20612013000500003

来源: SciELO

【 摘 要 】

The Rhodotorularubra biomass and carotenoids production was evaluated in sugarcane juice, molasses, and syrup based media. The effects of media supplementation with urea- nitrogen or the commercial nutrient called Nitrofos KL was also verified. The experimental design used was a completely randomized factorial with 3 substrates (juice, molasses, and syrup) and three supplementations (control, urea, and Nitrofos KL). The results were submitted to variance analysis and Tukey test at 5% probability. The highest production of yeast dry mass was obtained with molasses media supplemented with urea or Nitrofos KL (15.09 and 14.87 g/L respectively). The intracellular carotenoid production was high in the media without supplementation (0.329 mg/g). The best growth medium for the volumetric production was molasses (2.74 mg/L), while those supplemented with urea and Nitrofos KL produced 2.55 and 2.32 mg/L, respectively. The major carotenoids produced were torulene, torularhodin, and β-carotene. The lowest carbohydrate consumption was observed in the sugarcane juice medium without supplementation, while the highest consumption was observed in the urea based supplementation medium.

【 授权许可】

CC BY   
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