Kombinasi iradiasi dan penyimpanan pada suhu beku terhadap kandungan bakteri pada daging sapi asal rumah potong hewan di kabupaten serta kota Bogor

Abstract

Beef contains nutrients such as protein and water content is so high that suitable media for microbial growth. The presence of microbial can degrade beef’s quality. Therefore it needs to do some efforts to slow the damage by microbes on the beef with frozen storage and use of irradiation technology. This study on the effect of frozen storage and irradiation of the content of bacteria in beef. Also performed to determine the concentration of protein and water, and identification of Salmonella. Meat samples taken from three Slaughter Houses (RPH) in the District and the City of Bogor. Storage carried out for 4 weeks in the freezer with irradiation doses of 0, 3 and 5 kGy. The results showed levels of protein in meat slaughterhouses A, B and C were irradiated with 0 kGy dose at week 0, respectively 67.95%, 61.13% and 70.40%, while the water content of beef slaughterhouses A, B and C, each for 75.31%, 74.26% and 73.91%. No Salmonella obtained from three samples of beef. In general, the dose of 3 kGy could eliminate the total aerobic bacteria, coliform, Escherichia coli and Staphylococcus spp. that meet the SNI (2008) in all three samples of beef and looks significantly different to that are not irradiated (p <0.05). Combination treatment of frozen storage with irradiation provides a real impact on reducing the total count of aerobic bacteria, coliform, Escherichia coli and Staphylococcus spp