Lactobacillus plantarum Z43 and application thereof in low-salt fermented sausage

The invention provides a strain of lactobacillus plantarum Z43, which is preserved in the China General Microbiological Culture Collection Center (CGMCC), and the preservation number is CGMCC No.23962. The invention further relates to a freeze-dried bacterial powder direct vat set starter of the lactobacillus plantarum Z43 and a preparation method of the freeze-dried bacterial powder direct vat set starter. The freeze-dried bacterial powder direct vat set starter comprises the lactobacillus plantarum Z43, skimmed milk powder, trehalose and glycerol. When the direct vat set starter is used for fermenting sausages, the growth of spoilage microorganisms and pathogenic bacteria can be effectively inhibited, the safety of products is improved, the products have better flavor and appearance, and the direct vat set starter can be used for producing fermented sausage products with lower salt content. 本发明提供了一株植物乳杆菌Z43，其保藏于中国微生物菌种保藏管理委员会普通微生物中心，保藏编号为CGMCC No.23962。本发明还涉及植物乳杆菌Z43的冻干菌粉直投式发酵剂及其制备方法，所述冻干菌粉直投式发酵剂包括植物乳杆菌Z43、