Screening of Lactic Acid Bacteria for Silage Inoculants by Using a Model System of Silage Fermentation

Abstract

We screened of lactic acid bacteria (LAB) for silage inoculants by using a model system for ensilage. For 16 strains of LAB selected as having high lactic acid production in a liquid culture medium, we examined lactic acid production in the model system. Among them, strains 5-6 and 5-29 had the highest lactic acid production due to higher growth rates than those of the other strains and strain 1-1O was more acid-tolerant than the other strains. The specific growth rate of strain 1-10 was lower than those of strains 5-6 and 5-29. Strain 1-10 was identified as Lactobacillus casei. Strains 5-6 and 5-29 were identified as Lactobacillus plan tarum.