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The Lactobacillaceae are a family of lactic acid bacteria. [3] It is the only family in the lactic acid bacteria which includes homofermentative and heterofermentative organisms; [4] in the Lactobacillaceae, the pathway used for hexose fermentation is a genus-specific trait.
List of Prokaryotic names with Standing in Nomenclature (LPSN) is an online database that maintains information on the naming and taxonomy of prokaryotes, [1] following the taxonomy requirements and rulings of the International Code of Nomenclature of Prokaryotes. [2] The database was curated from 1997 to June 2013 by Jean P. Euzéby. [3]
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Leuconostoc lactis is a Gram-positive, non-motile, lactic acid bacterium that thrive best in acidic conditions and moderate temperatures. [2] [1] L. lactis is capable of acidifying culture media through lactose fermentation to pH levels of 4.0-4.1, and milk to levels below 5.4. [4]
The List of Prokaryotic names with Standing in Nomenclature (LPSN) currently recognizes fifteen member species: [1] [2] Secundilactobacillus angelensis Zhang et al. 2022; Secundilactobacillus collinoides (Carr and Davies 1972) Zheng et al. 2020; Secundilactobacillus folii Phuengjayaem et al. 2021; Secundilactobacillus hailunensis Liu et al. 2021
Lactose fermentation In one study that sought to prove that some fermentation produced by L. lactis can hinder motility in pathogenic bacteria, the motilities of Pseudomonas, Vibrio, and Leptospira strains were severely disrupted by lactose utilization on the part of L. lactis. [34]
Lactic acid fermentation is a metabolic process by which glucose or other six-carbon sugars (also, disaccharides of six-carbon sugars, e.g. sucrose or lactose) are converted into cellular energy and the metabolite lactate, which is lactic acid in solution.
Lactobacillus is a genus of gram-positive, aerotolerant anaerobes or microaerophilic, rod-shaped, non-spore-forming bacteria. [2] [3] Until 2020, the genus Lactobacillus comprised over 260 phylogenetically, ecologically, and metabolically diverse species; a taxonomic revision of the genus assigned lactobacilli to 25 genera (see § Taxonomy below).