Optimization of Fermentation Conditions by Mangrove Bacterium Strain G1 with Antibacterial Activity

Objective:The fermentation conditions of Mangrove Bacterium Strain G1 were studied.Method:The fermentation medium and fermentation conditions of G1 was investigated with single-factor test.Result:The results showed that the optimal fermentation medium were obtained as follow:Sucrose 2.0%,Yeast Powder 1.5%,NaCl 1%;the optimal fermentation condition were obtained as follow:liquid volume 40%,inoculum size 5%,Fermentation time 84h and the initial value pH 8.0.Under the optimum mediums and the best fermentation conditions,the yield of antibacterial compounds is 2 fold of the past.Conclusion:The establishment of fermentation conditions had provided scientific foundation for industrial production of antibacterial activity materials.