A combination of nisin and heat treatment was found to inhibit Escherichia coli O157:H7 effectively. After organisms were heated at 50, 52.5, and 55°C for 5, 10, and 15 min, respectively, nisin was incorporated into the plates of E. coli O157: H7 at 0, 25, 50, and 100 IU/ml. The concentration of 100 IU/ml nisin significantly inhibited the growth of E. coli O157:H7 heated at 50 and 52.5°C for 15 min. Nisin treatment at 100 IU/ml for 6 h resulted in the elimination of E. coli O157:H7 heated at 55°C for 10 and 15 min.
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Research Article| February 01 2002
Synergistic Effect of Nisin and Heat Treatment on the Growth of Escherichia coli O157:H7
HU-JANG LEE *
2Department of Biochemistry, College of Veterinary Medicine and School of Agricultural Biotechnology, Seoul National University, 103 Seodundong, Suwon, 441-744, Korea
*Author for correspondence. Present address: Department of Entomology, University of California, Davis, One Shields Avenue, Davis, CA 95616, USA. Tel: 530-752-5109; Fax: 530-752-1537; E-mail: firstname.lastname@example.org.
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JEONG-IN LEE, HU-JANG LEE, MUN-HAN LEE; Synergistic Effect of Nisin and Heat Treatment on the Growth of Escherichia coli O157:H7. J Food Prot 1 February 2002; 65 (2): 408–410. doi: https://doi.org/10.4315/0362-028X-65.2.408
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