The effect of autochthonous caproic acid-producing consortia inoculation on the multi-dimensional prokaryotic succession of bottom pitmud used for the Chinese strong-flavor Baijiu fermentation.

ABSTRACT: Caproic acid-producing bacteria (CPBs) are considered of great importance to the aging of pitmud within the Chinese strong-flavor Baijiu ecosystem. However, the role of CPBs during pitmud aging remains unclear. To address this question, autochthonous CPBs were subjected to successive liquid-state enrichment and solid-state pre-cultivation with fresh bottom pitmud, followed by five consecutive batches of fermentation to artificially accelerate pitmud aging. This study revealed how CPBs and related prokaryotic communities evolved during these stages. The enriched CPBs did not grow as rapidly in the solid-state new pitmud as in the liquid state. The multi-dimensional succession pattern of bottom pitmud prokaryotic communities, α-diversities, β-diversities, physicochemical properties, and the

SUBMITTER: Zhang H 

PROVIDER: S-EPMC12557497 | biostudies-literature | 2025

REPOSITORIES: biostudies-literature