High-temperature-resistant lactobacillus plantarum and preparation method thereof

The invention discloses a method for preparing a fusion strain. According to the method, lactobacillus plantarum and bacillus licheniformis are used as parent strains, and through fusion of inactivated amphiphilic protoplast and screening aiming at acid production, bacteriostasis and high temperature resistance, the fusion strain is obtained. Experiments prove that the fusion strain which can produce acid and has enzyme production, stress resistance and high temperature resistance of spore bacteria can be prepared by the method for preparing the fusion strain. The lactobacillus plantarum SG-03prepared by the method disclosed by the invention is high in lactic acid yield, has good antibacterial activity, can resist the high temperature, has good processability and is safe to the human andlivestock, free of environmental pollution problems, simple in culture condition, easy to store and suitable for development and application, and living bacteria agent products prepared from the lactobacillus plantarum can pro