Exploring microbial dynamics and metabolomic profiling of isoflavone transformation in black and yellow soybean tempe for sustainable functional foods.

ABSTRACT: Tempe, a traditional Indonesian fermented food, is rich in bioactive isoflavones and peptides, offering significant health benefits. This study explores how fermentation methods and soybean varieties shape isoflavone profiles and microbial communities. Two fermentation approaches were compared: Raprima™ starter culture and a co-culture of Rhizopus oligosporus and R. stolonifer. Metabolomic analysis showed that co-culture fermentation significantly increased genistein levels and enhanced isoflavone bioavailability. Proteobacteria (78 %) and Firmicutes (18 %) dominated bacterial communities, with yellow soybeans containing more Enterobacteriaceae. Co-culture fermentation enriched Stenotrophomonas, while Raprima™ favored Acinetobacter. The fungal community, primari

SUBMITTER: Nurmilah S 

PROVIDER: S-EPMC12309282 | biostudies-literature | 2025 Dec

REPOSITORIES: biostudies-literature