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Bioactive Phenolic Compounds of Soybean (Glycine max cv. Merit): Modifications by Different Microbiological Fermentations

AuthorsDueñas, Montserrat; Hernández, M. Teresa ; Robredo, Sergio; Lamparski, G.; Estrella, Isabel ; Muñoz, Rosario
Issue DateNov-2012
PublisherPolish Academy of Sciences
CitationPolish Journal of Food and Nutrition Sciences 62(4): 241-250 (2012)
AbstractIn this work, the effect of solid-substrate fermentation with Aspergillus oryzae, Rhizopus oryzae and Bacillus subtilis of soybean seeds on bioactive phenolic compounds was studied. Among the analysed sample extracts several phenolic compounds, hydroxybenzoics, hydroxycinnamics and flavonoids, such as flavonols, flavanones, isoflavones were identified by HPLC-DAD-ESI/MS. The results obtained indicate that fermentation process carried out in seeds inoculated with different microorganisms produced significant changes in flavonoids and phenolic acids contents. A significant increase in the content of phenolic acids was observed in the samples fermented with the different microorganisms with respect to soybean without fermentation and fermented naturally. Fermentation process produced also important changes in flavonoids compounds, with a significant formation in isoflavone aglycone contents such as daidzein, glycitein and genistein as a consequence of glucosidase activity of microorganism in this process, showing significant differences (p<0.05) with respect to control. Therefore, this process was shown to be a good way to increase the phenolic content of soybean, which could confer health-promoting effects. © Institute of Animal Reproduction and Food Research of the Polish Academy of Sciences.
Publisher version (URL)http://dx.doi.org/10.2478/v10222-012-0060-x
Identifiersissn: 1230-0322
Appears in Collections:(ICTAN) Artículos
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