Abstract

This study investigated the distribution of the native lactic acid bacteria (LAB) population in shao-jiou-luo (fermented zoned cerith), a popular traditional fermented food in Taiwan. A total of 129 cultures of LAB were isolated from shao-jiou-luo samples, and 14 cultures were isolated from its main raw material, zoned cerith. These isolates were divided into classes by phenotype and then into groups by restriction fragment length polymorphism analysis and sequencing of 16S ribosomal DNA. The identification results revealed 11 bacterial species belonging to five genera in shao-jiou-luo and three species belonging to two genera in zoned cerith. The most common bacterial genera in shao-jiou-luo were heterofermentative Weissella and Leuconostoc. On the other hand, Enterococcus aquimarinus was the most common species found in the raw zoned cerith sample. In conclusion, the results suggest that heterofermentative LAB species greatly contributed to the fermentation of shao-jiou-luo. This is the first report describing the distribution and varieties of LAB that exist in the shao-jiou-luo fermentation process and raw zoned cerith.

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