Parameters of the fermentation of soybean flour by Monascus purpureus or Aspergillus oryzae on the production of bioactive compounds and antioxidant activity.

Autor: Handa CL; Universidade Estadual de Londrina, Departamento de Ciência e Tecnologia de Alimentos, 86051-990 Londrina, PR, Brazil., de Lima FS; Universidade Estadual de Londrina, Departamento de Ciência e Tecnologia de Alimentos, 86051-990 Londrina, PR, Brazil., Guelfi MFG; Universidade Estadual de Londrina, Departamento de Ciência e Tecnologia de Alimentos, 86051-990 Londrina, PR, Brazil., Fernandes MDS; Universidade Estadual de Londrina, Departamento de Ciência e Tecnologia de Alimentos, 86051-990 Londrina, PR, Brazil., Georgetti SR; Universidade Estadual de Londrina, Departamento de Ciências Farmacêuticas, Brazil., Ida EI; Universidade Estadual de Londrina, Departamento de Ciência e Tecnologia de Alimentos, 86051-990 Londrina, PR, Brazil. Electronic address: elida@uel.br.
Jazyk: angličtina
Zdroj: Food chemistry [Food Chem] 2019 Jan 15; Vol. 271, pp. 274-283. Date of Electronic Publication: 2018 Jul 26.
DOI: 10.1016/j.foodchem.2018.07.188
Abstrakt: The objective of this work was to evaluate the effects the solid-state fermentation parameters of defatted soybean flour (DSF) by Monascus purpureus or Aspergillus oryzae on the bioactive compounds. Central composite rotatable design, multi-response optimization, and Pearson's correlation were used. The fermentation parameters as initial pH (X 1 ), DSF-to-water ratio (X 2 ), and incubation temperature (X 3 ) were taken as independent variables. The function responses were isoflavone content, total phenolic content (TPC), and antioxidant activity. All fermentation parameters affected the isoflavone content when fermented by Monascus purpureus, whereas the TPC or antioxidant activities remained almost unchanged. For the fermentation by Aspergillus oryzae, all the function responses were influenced by X 2 and X 3 and were independent of the X 1 . Estimated optimum conditions were found as x 1  = 6.0, x 2  = 1:1, and x 3  = 30 °C for both fungi. Achieving suitable fermentation parameters is essential to increase bioactive compounds in the DSF that makes it promising for food industrial applications.
(Copyright © 2018 Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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