Abstract: The present invention relates to the Lactobacillus helveticus VF45A strain, mutants and variants thereof capable of reducing the pH of milk to about 3.36 or less after 48 hours of fermentation. The present invention also relates to isolated peptides that may be obtained by fermentation of milk by the aforementioned strain. The present invention also relates to the Lactobacillus helveticus VFH049 strain and mutants and variants thereof capable of producing at least one peptide corresponding to the SEQ ID 44 to SEQ ID NO 86 sequences and/or capable of increasing the intestinal absorption of calcium. The present invention also relates to an isolated peptide and associated products and compositions and the Lactobacillus delbrueckii ssp. bulgaricus VF50b strain and mutants and variants thereof capable of producing at least one peptide corresponding to the SEQ ID 87 to SEQ ID NO 199 sequences and/or capable of increasing the intestinal absorption of calcium.

Abstract: The present invention relates to the isolated strain of Lactobacillus plantarum VF46A deposited at the CNCM (Collection Nationale De Cultures de Microorganismes, INSTITUT PASTEUR, 25 rue du Docteur Roux, F-75724 PARIS CEDEX15) under the number CNCM 1-5301 on 29 Mar. 2018 as well as to a pharmaceutical composition, a food supplement and a food comprising said strain.