Inhibitory Study Of Cassava Leather Ethanol Extract As Natural Antimicrobial In Reducing Salmonella Sp. And Escherichia Coli On Contamination Chicken Meat (Gallus Domesticus)

Chicken meat is a food product that is damaged easily and it’s a good medium for microbial growth. Therefore, it is needed a way to reduce the contamination of microbial pathogens. Cassava leather is a byproduct that contains an active compounds and it has a natural antimicrobial function to reduce pathogenic microbe contaminant. This study to determine the presence of natural antimicrobial activity against Escherichia coli and Salmonella sp . in chicken meat. The research was conducted using single factor with 7 treatment in Completely Randomized Block Design as many as 5 replications. Seven treatments of this research one positive control treatment (amoxicillin), and one treatment as control (96% ethanol). The results is cassava ethanol extract able to inhibit of Escherichia coli with the inhibitory diameter of 10.08 mm and Salmonella sp . with an inhibitory diameter diameter of 9.17 mm at a concentration extract of 100%, by extract concentrations of 80%, 60%, 40%, and 20%, with each inhibitory diameter 8.98 mm, 8.67 mm, 8.62 mm, 8.45 mm against Escherichia coli and 8.58 mm, 8.22 mm, 7.73 mm, 7.56 mm against Salmonella sp . The best concentration of cassava ethanol extract as a natural antimicrobial in chicken meat was 100% with total decrease to Escherichia coli 5.8 × 107cfu / g (69.05%) and total decrease of Salmonella sp by 4.0 × 107 cfu / g (41.17%).