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  • Title: Quality, antioxidative ability, and cell proliferation-enhancing activity of fermented black soybean broths with various supplemental culture medium.
    Author: Lin CC, Wu PS, Liang DW, Kwan CC, Chen YS.
    Journal: J Food Sci; 2012 Jan; 77(1):C95-101. PubMed ID: 22260104.
    Abstract:
    UNLABELLED: The fermented soybean-based foods have played an important role in traditional diets around the world for many centuries, and Bacillus subtilis is typically used in the fermentation of soybean-based foods. The fermentation process may improve not only the flavor but also the nutritional value of food, and substances produced in this fermented broth were affected by many factors including culture medium and the selected soybeans. In this study, we use 3 potential culture mediums in the fermentation of black soybean and the fermented black soybean broths were used for the examination of amino acid composition, total phenolics content, flavonoids and anthocyanins contents, the antioxidant properties, and cytotoxicity. Our results indicated that the fermented black soybean broth, fermentation III, have the most abundant essential amino acid (79.77 mg/g), phenolics (19.33 mg/g), flavonoids (46.01 mg/g), and anthocyanins (1.06 mg/g). Besides, all of the fermented black soybean broths exhibited the significant antioxidative abilities with 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging effect, reducing power and ferrous ion chelating effect. In addition, the fermented black soybean broths demonstrated the cell proliferation-enhancing activity in Detroit 551 cells. The cells were augmented up to the maximum value of 183.6% (compared with control) at 10 mg/mL of the fermentation I. Therefore, the different supplemental culture medium fermented black soybean broths may be used as a functional ingredient in the products of nutritional drinks and health foods. PRACTICAL APPLICATION: The present study illustrated the potential of various supplemental culture medium fermented black soybean broths in the application of functional ingredient for nutritional drinks and health foods.
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