Hubungan Antara Jumlah Total Bakteri dan Angka Katalase

Abstract

The relationship between total bacteria count (Total Plate Count) and catalase value to the fresh milk shelf-life. Sixty milk samples were taken from collecting center (KUNAK) of Bogor. Each milk samples were devided into 2 groups: (1) low temperature storage (< 100C) and (2) room temperature storage (± 27.50C). The samples were analyzed with total bacteria count (TPC) test and catalase test and repeated after 3 hours. The result showed that milk samples which stored at low temperature (<100C) had no significant difference (P>0.025) to the bacterial counts and catalase value. On the other hand, milk samples which stored at room temperature (±27.50C) had significant difference (P<0.025) to the bacterial counts and catalase value. This research concluded that stored milk samples at low temperatue (<100C) has the best effect on inhibiting bacterial growth and enzimatic activity compared to the room temperature storage (±27.50C). By inhibiting of bacterial growth and enzimatic activity, will the shelflife of milk be prolonged. Key word: bacteria counts, enzimatic activity, shelf-life of milk.