Use of lactic acid bacteria or fermentation product thereof for maintaining or improving gastrointestinal condition

A method for treating Helicobacter pylori infection, comprising:

• administering a lactic acid bacterial fermentation composition to a subject in need thereof, wherein the lactic acid bacterial fermentation composition consists of:
• a fermentation product of a Lactobacillus paracasei ET-66 strain, a fermentation product of a Lactobacillus salivarius subsp. salicinius AP-32 strain, and a fermentation product of a Lactobacillus plantarum LPL28 strain;
• wherein the Lactobacillus paracasei ET-66 strain is deposited at the China General Microbiological Culture Collection Center (CGMCC) with a deposition number CGMCC 13514;
• wherein the Lactobacillus salivarius subsp. salicinius AP-32 strain is deposited at the China Center for Type Culture Collection (CCTCC) with a deposition number CCTCC M2011127;
• wherein the Lactobacillus plantarum LPL28 strain is deposited at the China General Microbiological Culture Collection Center with a deposition number CGMCC 17954;
• wherein the lactic acid bacterial fermentation composition is prepared by mixing the Lactobacillus paracasei ET-66 strain, the Lactobacillus salivarius subsp. salicinius AP-32 strain, and the Lactobacillus plantarum LPL28 strain in a fermentation medium at a bacterial count ratio of the Lactobacillus paracasei ET-66 strain to the Lactobacillus salivarius subsp. salicinius AP-32 strain to the Lactobacillus plantarum LPL28 strain as (1 to 8):(1 to 8):
• 1, cultivating the Lactobacillus paracasei ET-66 strain, the Lactobacillus salivarius subsp. salicinius AP-32 strain, and the Lactobacillus plantarum LPL28 strain in the fermentation medium, and then performing solid-liquid separation on the fermentation medium;
• wherein the fermentation product of a Lactobacillus paracasei ET-66 strain is a fermentation liquid free of bacterial strains or a powder of the fermentation liquid free of bacterial strains, the fermentation product of a Lactobacillus salivarius subsp. salicinius AP-32 strain is a fermentation liquid free of bacterial strains or a powder of the fermentation liquid free of bacterial strains, and the fermentation product of a Lactobacillus plantarum LPL28 strain is a fermentation liquid free of bacterial strains or a powder of the fermentation liquid free of bacterial strains.