The present application belongs to the field of microbial technology, and particularly relates to a
lactobacillus LS.1 and application thereof. Lentilactobacillus sunkii The
lactobacillus sunkii subsp. LS.1 is acid-resistant, can produce acid quickly, has high acid accumulation, and can inhibit the growth of
spoilage bacteria, and is used for fermenting
crystal leek, and shows excellent color protection, crispness preservation and
flavor improvement effects. The
crystal leek product fermented by adding the
lactobacillus LS.1 has uniform and transparent white scales on the inside and outside, uniform color without blackening and darkening, and no
biological membrane is produced; the pickled leek has pure and mellow
flavor, no pungent and irritating smell, no peculiar smell,
sweet taste is dominant, and sour and salty tastes are coordinated; the product crispness can be better ensured, the product
shelf life quality can be ensured to be stable without swelling under the condition of not using preservatives, the product quality is comprehensively improved, and the
fermentation process control is convenient and simple, and the scale industrialization technology popularization can be realized.