Patent ID: 11879101
Assignee: YANGTZE UNIVERSITY
Field: Biotechnology (Chemistry)
Classification: CPC C | IPC C

Claim 0:
1. A method for preparing biosurfactant, wherein the method comprises fermenting a Brevibacillus agri strain in a nutrient medium to produce a lipopeptide biosurfactant, wherein the Brevibacillus agri strain is Brevibacillus agri deposited with the China General Microbiological Culture Collection Center (CGMCC) with CGMCC deposit number 9983, wherein the nutrient medium comprises: MgSO4 0.2 g/L, K2HPO4 1.0 g/L, KH2PO4 1.0 g/L, Na2HPO4 4.0 g/L, NaCl 10.0 g/L, NaNO3 10.0 g/L, crude oil 10.0 g/L and molasses 2-3 g/L, pH is 7.0, and a fermentation temperature is 25-60° C.