Effects of two different Lactobacillus plantarum fermentation processes on microbial communities and metabolic functions were evaluated using metagenomics and metatranscriptomics. Dominant species in Lactobacillus plantarum DACN4208 (LPIF8) and DACN4120 (LPIF10) were Lactobacillus pentosus and Lactobacillus plantarum, with Lactiplantibacillus comprised 75.31 % of the microbial community in LPIF10. Metatranscriptomic revealed that LPIF8 had more genes associated with carbohydrate-binding modules and auxiliary activities, totaling 7500 and 4000 genes, respectively. Metabolic reconstruction further showed that LPIF8 had the most genes involved in pyruvate and lactose metabolism, with 633 and 389 genes, respectively. In contrast, LPIF10 fewer genes related to the biosynthesis and metabolism of phenylalanine, tyrosine, and tryptophan. These results indicate that LPIF8 could efficiently improve fermentation efficiency and increase metabolic activity, while LPIF10 exhibited a more moderate and controlled metabolic process. These provide valuable insights into how different starter cultures influence the structure and metabolic functions of microbial communities in pickled bamboo shoots.
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| http://dx.doi.org/10.1016/j.foodchem.2024.141772 | DOI Listing |
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