Using of Lactobacillus and Bifidobacterium to product the isoflavone aglycones in fermented soymilk
2007
Wei, Q.K. | Chen, T.R. | Chen, J.T.
The study determined isoflavone aglycone contents in soymilk and sugar-soymilk fermented with a single culture of two strains of Lactobacillus paracasei, two strains of Lactobacillus acidophilus, and one strain of Bifidobacterium longum respectively at 37 °C for 24 h. Isoflavone concentration was analyzed by HPLC. The viable count of bacteria in all of the fermented soymilk ranged from 7 to 9 log CFU/ml. The isoflavone aglycone had a significant increase of 62%-96% of isoflavone in all of the fermented soymilk compared to 17% in non-fermented soymilk (P < 0.05). The five strains of microorganisms produced lesser amount of isoflavone aglycones in fermented sucrose-soymilk than in other fermented soymilk.
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