Solid-state fermentation for the enrichment and extraction of proteins and antioxidant compounds in rice bran by Rhizopus oryzae

Brazilian Archives of Biology and Technology

Larine Kupski¹  Eliane Cipolatti¹  Meritaine Da Rocha¹  Melissa Dos Santos Oliveira¹  Leonor De Almeida Souza-soares¹  Eliana Badiale-furlong¹ 

[1] ,Universidade Federal do Rio Grande Escola de Química e Alimentos Rio Grande RS ,Brasil

关键词: Protein extract;    Phenolic extract;    Fermentation;   

DOI  :  10.1590/S1516-89132012000600018

来源: SciELO

【 摘 要 】

The objective of this work was to evaluate the solid-state fermentation with Rhizopus oryzae CCT 7560 of rice bran for the enrichment of proteins and the antioxidant compounds in the fermented biomass. Fermentation was performed in tray bioreactors at 30ºC for 120 h. Protein extraction was done at alkaline pH, followed by precipitation with acetone. Phenolic compounds were extracted with cold methanol. The maximum protein was recovered from after 120 h (26.6%). The content of total phenolic compounds increased during the fermentation and was maximum after 96 h, which inhibited the DPPH radical by 87%. The promising characteristics of the protein and phenolic extracts of the biomass suggested the application in the coating composition for vegetal tissues preservation.

【 授权许可】

CC BY-NC   
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