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CHANGES OF ANTI-GLUCOSIDASE CONTENT AND SOME OTHER CHARACTERISTICS IN MULBERRY JUICE DURING FERMENTATION WITH LEUCONOSTOC MESENTEROIDES

文献类型: 外文期刊

作者: Zheng, X. 1 ; Yu, Y. 1 ; Xiao, G. 1 ; Xu, Y. 1 ; Wu, J. 1 ; Tang, D. 1 ; Cheng, Y. 1 ; Zhang, Y. 1 ;

作者机构: 1.Guangdong Acad Agr Sci, Sericulture & Agrifood Res Inst, Guangzhou 510610, Guangdong, Peoples R China

2.JiangXi Agr Univ, Coll Biosci & Bioengn, Nanchang 330045, Peoples R China

关键词: mulberry juice;fermentation;anti-glucosidase;Leuconostoc mesenteroides

期刊名称:ACTA ALIMENTARIA ( 影响因子:0.65; 五年影响因子:0.899 )

ISSN:

年卷期:

页码:

收录情况: SCI

摘要: Changes in microbial population, pH, sugar, organic acid, anthocyanins, total soluble phenolics, and anti-glucosidase contents were measured during fermentation of mulberry juice at 30 degrees C by probiotic Leuconostoc mesenteroides showing rapid growth after an approximately 1-day lag phase and reaching a maximum of 8.6 log CFU ml(-1) after 4 d. During the rapid growth phase, the main mulberry juice sugars, glucose and fructose, were largely consumed, and the acidic metabolites, lactic acid and acetic acid, were produced accordingly. A slow decrease in the concentration of the main organic acid, citric acid, was also observed during fermentation. After 4 d fermentation, anthocyanin content showed a 44.4% reduction, but the total amount of soluble phenolics and a-glucosidase inhibitory activity showed no significant changes (P>0.05). This suggests that L. mesenteroides fermentation of mulberry juice is a good strategy to enhance its probiotic value and to decrease the sugar content without changing the anti-glucosidase activity, which is required to reduce postprandial rise in blood glucose.

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