Journal
INTERNATIONAL JOURNAL OF FOOD MICROBIOLOGY
Volume 105, Issue 3, Pages 347-356Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.ijfoodmicro.2005.04.024
Keywords
fermented vegetables; gundruk; sinki; khalpi; inziangsang; Lactobacillus; Leuconostoc; Pediococccus; rep-PCR; RAPD-PCR
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Gundruk, sinki and khalpi are lactic-fermented vegetable products of Sikkim in India, and inziangsang is a fermented leafy vegetable product of Nagaland and Manipur in India. A total of 65 samples of gundruk (25), sinki (12), khalpi (25) and inziangsang (3) were analysed for microbial counts. The population of lactic acid bacteria (LAB) as well as aerobic mesophilic counts were at the level of 10(7) cfu g(-1). Yeasts were detected only in few samples of sinki and khalpi. No moulds were detected. In order to identify the predominating organisms, a total of 269 strains of LAB were isolated from gundruk, sinki, khalpi and inziangsang samples. The phenotypic characteristics of these strains were determined followed by genotyping using RAPD-PCR, repetitive element PCR and species-specific PCR techniques. The major representatives of the LAB involved in these fermentations were identified as Lactobacillus brevis, Lactobacillus plantarum, Pediococcus pentosaceus, Pediococcus acidilactici and Leticonostoc fallax. (C) 2005 Elsevier B.V. All rights reserved.
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