Abstract: A strain of Paenibacillus sp. for fermenting wheat bran to synthesize an extracellular polysaccharide is disclosed. A weight-average molecular weight of the extracellular polysaccharide synthesized by the strain is 300,800 to 451,200 daltons, and the extracellular polysaccharide is an acidic heteropolysaccharide composed of glucuronic acid, glucose and fucose in a molar ratio of (1.55 to 1.60):1:(1.63 to 1.72); a backbone of the extracellular polysaccharide is composed of a 1,3-linked glucose residue, a 1,3-linked fucose residue, a 1,3,4-linked fucose residue and a 1,4-linked glucuronic acid residue, a branch point is located at a 0-4 position of the 1,3,4-linked fucose residue, and a branch chain is composed of terminally linked glucuronic acid residues, and the extracellular polysaccharide is composed of a repeating unit shown in Formula I. The extracellular polysaccharide has a certain immunomodulatory effect, and has a good application prospect in food, medicine and related fields.

Abstract: Provided are a new Paenibacillus sp. strain, the deposit number of which is CGMCC No. 8333, and a method for culturing the exopolysaccharide; and an exopolysaccharide having a structural formula as shown in formula (I) being produced by the strain, as well as a production method thereof and its use in promoting the propagation of bifidobacterium. The exopolysaccharide shown by formula (I) has a moderate degree of polymerization (DP=15-30) and has the functions of promoting the propagation of bifidobacterium, as well as adjusting human intestinal microflora.

Abstract: Provided are a new Paenibacillus sp. strain, the deposit number of which is CGMCC No. 8333, and a method for culturing the exopolysaccharide; and an exopolysaccharide having a structural formula as shown in formula (I) being produced by the strain, as well as a production method thereof and its use in promoting the propagation of bifidobacterium. The exopolysaccharide shown by formula (I) has a moderate degree of polymerization (DP=15-30) and has the functions of promoting the propagation of bifidobacterium, as well as adjusting human intestinal microflora.

Abstract: Provided are a new Paenibacillus sp. strain, the deposit number of which is CGMCC No. 8333, and a method for culturing the exopolysaccharide; and an exopolysaccharide having a structural formula as shown in formula (I) being produced by the strain, as well as a production method thereof and its use in promoting the propagation of bifidobacterium. The exopolysaccharide shown by formula (I) has a moderate degree of polymerization (DP=15-30) and has the functions of promoting the propagation of bifidobacterium, as well as adjusting human intestinal microflora.

Abstract: Provided are a new Paenibacillus sp. strain, the deposit number of which is CGMCC No. 8333, and a method for culturing the exopolysaccharide; and an exopolysaccharide having a structural formula as shown in formula (I) being produced by the strain, as well as a production method thereof and its use in promoting the propagation of bifidobacterium. The exopolysaccharide shown by formula (I) has a moderate degree of polymerization (DP=15-30) and has the functions of promoting the propagation of bifidobacterium, as well as adjusting human intestinal microflora.

Abstract: A strain of exopolysaccharide-secreting Lactobacillus brevis, BDLB0001, and an application thereof. The Lactobacillus brevis is deposited at the China General Microbiological Culture Collection Center of the China Committee of Culture Collection for Microorganisms, with a deposit number of CGMCC No. 5223. The Lactobacillus brevis secrets an elevated amount of exopolysaccharide, where the exopolysaccharide secreted is capable of eliciting B lymphocyte proliferation to enhance immunity, and has application prospects in medicaments, healthcare products and food products for immunity enhancement.

Abstract: Provided is a strain of exopolysaccharide-secreting Lactobacillus plantarum and an application thereof. The deposit number of the strain is CGMCC No. 5222. The strain differs from other strains of Lactobacillus plantarum in the amount of exopolysaccharide secreted, has unique physiological and biochemical characteristics and genetic background, and is a newly isolated and identified strain of Lactobacillus plantarum.