PRODUKSI BAKTERIOSIN OLEH Lactobacillus plantarum DJ3 DAN APLIKASINYA SEBAGAI PENGAWET DAGING

Abstract

Lactic acid bacteria (LAB) are able to inhibit other bacteria by producing protein, named as bacteriocin. Bacteriocin which  produced by LAB is useful to inhibit pathogenic bacteria that harmful to human health or even makes food spoil. Bacteriocin is effective as antibacterial agent against pathogenic bacteria. Crude Extract of bacteriocin that produced by Lactobacillus plantarum DJ3 is able to inhibits the growth of E. Coli (4 mm) and S. aureus (5.33 mm). Application of bacteriocin in beef show that it able to inhibita the growth of bacteria. The amount of bacteria in beef that stored in 8 hours with bacteriocin addition are 1,3 X 10⁸ CFU/g, and 3.7 X  10⁸ CFU/g without bacteriocin addition. While the amount of bacteria in beef that stored in 12 hours with bacteriocin addition are 2.0 x 10⁹ CFU/g and 1.5 x 10¹¹ without bacteriocin addition