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Residu Zeranol dalam Daging Sapi yang Diimpor dari Australia dan Selandia Baru Melalui Pelabuhan Tanjung Priok (ZERANOL RESIDUE IN BEEF MEAT IMPORTED FROM AUSTRALIA AND NEW ZEALAND THROUGH THE PORT OF TANJUNG PRIOK) Siti Khadijah; Hadri Latif; Agatha Winny Sanjaya
Jurnal Veteriner Vol 16 No 4 (2015)
Publisher : Faculty of Veterinary Medicine, Udayana University and Published in collaboration with the Indonesia Veterinarian Association

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Abstract

Zeranol is one of the synthetic growth hormone produced from mycotoxin that could affect humanhealth. The objective of this study was to determine zeranol residue in beef meat imported from Australiaand New Zealand using Enzyme-Linked Immunosorbent Assay (ELISA). The results showed that zeranolresidue was detected in 5 of 59 meat samples (8,5 %) of Australia and 1 of 59 meat samples (1,7 %) of NewZealand, with mean concentration of 0,644±0,157 ppb and 0.680±0.00 ppb, respectively. There were nosignificant differences in the concentration of zeranol residue between the meat from both countries(p>0,005). In addition the concentration of zeranol residue was below the National Standardization Agencyof Indonesia Maximum Residue Limit (MRL) which is 2 ppb.
Detection of Listeria monocytogenes in Pasteurized Milk Sold in Bogor and Its Relationship with Human Health AGATHA WINNY SANJAYA; MIRNAWATI SUDARWANTO; KIBUUKA ROBERT
Microbiology Indonesia Vol. 3 No. 1 (2009): April 2009
Publisher : Indonesian Society for microbiology

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (54.831 KB) | DOI: 10.5454/mi.3.1.6

Abstract

Many countries have established a zero tolerance policy, under which ready-to-eat foods are contaminated with Listeria monocytogenes at a detectable level. The research was done in two parts. The first part was to qualitatively identify the presence of L. monocytogenes in pasteurized milk (n=32 samples) sold in different supermarkets in Bogor. The method was adopted from the Bacteriological Analytical Manual/Food and Drug Administration. All samples tested resulted negative to L. monocytogenes. The second part of the research was to evaluate the growth of L. monocytogenes in sterilized milk stored in an incubator set at 4oC and monitored for 7 days. The original L. monocytogenes culture at a concentration of 1x109 cfu mL-1 was diluted with buffered phosphate water 0.1% to reach a cell concentration of approximately 1.0 x 102 cfu mL-1. Growth was observed on the first, second, third, fourth and fifth day. On the sixth and seventh day, the numbers of colony forming units observed were almost similar (2.5-2.8 x 105 cfu mL-1). A population of 10 cells is sufficient to cause serious listeriosis infection in human.