Can J Microbiol. 1976 Mar;22(3):347-53.

Phosphopantothenic acid--the major product of pantothenic acid accumulation and a significant growth stimulatn in Lactobacillus plantarum.

Abstract

Non-proliferating cells of Lactobacillus plantarum accumulated about 1.3 mug of pantothenic acid (PA) per milligram dry cells when placed in a phosphate-buffered solution containing glucose, NaCl, and PA for 21 h. Under the conditions applied for PA uptake, pH 7.5 and 38 degrees C, the accumulated PA existed almost exclusively in a bound form. Free PA was observed only occasionally and then at questionably significant levels. All bound PA was released quantitatively by enzyme hydrolysis with alkaline (intestinal) phosphatase. Chromatographic analysis coupled with differential microbiological analysis of cell extracts using Saccharomyces cerevisiae, Lactobacillus helveticus, and L. plantarum identified the accumulated PA as phosphopantothenic acid (P-PA). Assay of P-PA loaded cell extracts (devoid of free PA) by L. plantarum before and after alkaline phosphatase hydrolysis showed that the growth of this primary assay organism was stimulated by 8.3%.

PMID:: 1252995; [PubMed - indexed for MEDLINE]

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