tailieunhanh - Isolation and characterization of lactic acid bacteria from banana Pseudostem

Banana pseudostem comprises several polymers such as cellulose, hemicellulose, pectin and lignin that constitute fibers with good mechanical properties. These sugars can be used for production of various organic acids and alcohol. With the availability of such huge biomass as substrate, a wide range of microorganisms like bacteria and fungi grow on it. Lactic acid bacteria can grow on such sugars and can be isolated from banana pseudostem. In present study, lactic acid bacteria (LAB) were isolated from banana pseudostem core using MRS agar. The pseudo stem central core harbored the highest LAB population of x 103 cfu/ g. The isolates showed varied morphological characteristics like oval, creamy, pin head colonies on MRS agar plates. LAB isolates also assimilated different carbon sources like glucose, dextrose, sucrose, fructose and lactose. Such isolates can further be used for fermentation studies with pseudostem as substrate. | Isolation and characterization of lactic acid bacteria from banana Pseudostem