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Role of probiotic Lactobacillus fermentum KKL1 in the preparation of a rice based fermented beverage.

  • 2015-07
  • Bioresource Technology 188
    • Kuntal Ghosh
    • M. Ray
    • A. Adak
    • S. Halder
    • A. Das
    • A. Jana
    • Saswati Parua Mondal
    • C. Vágvölgyi
    • P. K. Das Mohapatra
    • B. Pati
    • K. C. Mondal


A dominant lactic acid bacteria, Lactobacillus fermentum KKL1 was isolated from an Indian rice based fermented beverage and its fermentative behavior on rice was evaluated. The isolate grown well in rice and decreased the pH, with an increase of total titratable acidity on account of high yield in lactic acid and acetic acid. The production of α-amylase and glucoamylase by the strain reached plateau on 1st and 2nd day of fermentation respectively. The accumulation of malto-oligosaccharides of different degrees of polymerization was also found highest on 4th day. Besides, phytase activity along with accumulation of free minerals also unremittingly increased throughout the fermentation. The fermented materials showed free radical scavenging activity against DPPH radicals. In-vitro characteristics revealed the suitability of the isolate as probiotic organism. The above profiling revealed that probiotic L. fermentum KKL1 have the significant impact in preparation of rice beer and improves its functional characteristics.

Keywords: Fermented beverage; Lactic acid bacteria; Malto-oligosaccharides; Phytase; Probiotic.

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