Cent Eur J Public Health 2005, 13(2):89-95
Resistance of Yersinia enterocolitica, Escherichia coli O157:h7 and Natural Microflora against Acidic Conditions and Freezing-thawing in Fresh Sausages
- General Microbiology, Department of Microbiology, Faculty of Chemistry, Biochemistry and Pharmacy, National University of San Luis, San Luis City, Argentina
The resistance of Yersinia enterocolitica O:9, Escherichia coli O157:H7 and natural microflora against lactic acid (LA), ascorbic acid (AA), and freezing-thawing in noninoculated and inoculated fresh sausages was studied. Samples were stored at -18 °C for 28 days and thawed in microwave (MW), at room temperature (RT), in refrigerator (R) and under flowing of tap water (F) on days 7, 14, 21 and 28. Plate Count Agar (PCA), Sorbitol Mac Conkey agar (SMC) and Mac Conkey agar (MC) were used for microbial counts. A maximal reduction of 1.57 log in mesophilic aerobes and no significant changes in total and fecal coliform levels with respect to the initial counts in natural microflora were observed along storage. In inoculated fresh sausages, reductions of 1.37 log on PCA and 2.17 log on SMC were obtained in E. coli O157:H7 populations as compared to the control groups on day 0. Similarly, reductions of 1.69 log on PCA and 2.79 log on MC as compared to the initial level were observed in counts of Y. enterocolitica inoculated samples. Salmonella Anatum, P. aeruginosa, Y. enterocolitica B1A O:7,8-8-8,19 and E. coli non O157:H7 strains were recovered from the natural microflora by enrichment techniques.
Thawing in refrigerator was more frequently related to the best reductions of total mesophilic aerobe, E. coli O157:H7 and Y. enterocolitica O:9 counts than the other thawing methods. Reductions of microbial populations observed in LA treated samples were similar to those observed in AA treated samples. Although the acidic and freezing treatments might reduce the microbial levels in natural microflora of fresh sausages, they appeared to be ineffective in the total elimination of high inocula of pathogens like E. coli O157:H7 and Y. enterocolitica O:9.
Klíčová slova: fresh sausages, Escherichia coli O157:H7, Yersinia enterocolitica, natural microflora, freezing, thawing, organic acids
Vloženo: 30. listopad 2004; Revidováno: 21. leden 2005; Přijato: 21. leden 2005; Zveřejněno: 1. červen 2005 Zobrazit citaci
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Reference
- Hara-Kudo Y, Ikedo M, Kodaka H, Nakagawa H, Goto K, Masuda T, Konuma H, Kojima T, Kumagai S: Selective enrichment with a resuscitation step for isolation of freeze-injured Escherichia coli O157:H7 from foods. Appl Environ Microbiol. 2000;66: 2866-2872.
Přejít k původnímu zdroji...
- Archer DL: Freezing: an underutilized food safety technology? Int J Food Microbiol. 2004;15: 127-138.
Přejít k původnímu zdroji...
- Castello MM, Koohmaraie M, Berry ED: Microbial and quality attributes of ground pork prepared from commercial pork trim treated with combination intervention processes. J Food Prot. 2001;64: 1981-1987.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Sage JR, Ingham SC: Survival of Escherichia coli O157:H7 after freezing and thawing in ground beef patties. J Food Prot. 1998;61: 1181-1183.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Ansay SE, Darling KA, Kaspar CW: Survival of Escherichia coli O157: H7 in ground-beef patties during storage at 2, -2, 15 and then -2 ° C, and -20 °C. J Food Prot. 1999;62: 1243-1247.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Ramirez EI, Vasquez-Salinas C, Rodas-Suarez OR, Pedroche FF: Isolation of Yersinia from raw meat (pork and chicken) and precooked meat (porcine tongues and sausages) collected from commercial establishments in Mexico city. J Food Prot. 2000;63: 542-544.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Burnham JA, Kendall PA, Sofos JN:Ascorbic acid enhances destruction of Escherichia coli O157:H7 during home-type drying of apple slices. J Food Prot. 2001;64: 1244-1248.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Ricke SC: Perspectives on the use of organic acids and short chain fatty acids as antimicrobials. Poult Sci. 2003;82: 632-639.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Jay JM: Modern food microbiology, 6th ed. Gaithersburg Md., Aspen Publishers 2000.
Přejít k původnímu zdroji...
- Kim BH, Jang A, Lee SO, Min JS, Lee M: Combined effect of electron-beam (beta) irradiation and organic acids on shelf life of pork loins during cold storage. J Food Prot 2004;67: 168-171.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Kotula KL, Thelappurate R: Microbiological and sensory attributes of retail cuts of beef treated with acetic and lactic acid solutions. J Food Prot. 1994;57: 665-670.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Conner DE, Kotrola JS, Mikel WB, Tamblyn KC: Effects of acetic-lactic acid treatments applied to beef trim on populations of Escherichia coli O157:H7 and Listeria monocytogenes in ground beef. J Food Prot. 1997;60: 1560-1563.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Castillo A, Lucia LM, Roberson DB, Stevenson TH, Mercado I, Acuff GR: Lactic acid sprays reduce bacterial pathogens on cold beef carcass surface and in subsequently produced ground beef. J Food Prot. 2001;64: 58-62.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Sabah JR, Juneja VK, Fung DY: Effect of spices and organic acids on the growth of Clostridium perfringens during cooling of cooked ground beef. J Food Prot. 2004;67: 1840-1847.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Fletcher RD,AlbersAC, ChenAK,Albertson jr. JA:Ascorbic acid inhibition of Campylobacter jejuni growth. Appl Environ Microbiol. 1983;45, 792-795.
Přejít k původnímu zdroji...
- Cutter CN, Siragusa GR: Efficacy of organic acids against Escherichia coli O157:H7 attached to beef carcass tissue using a pilot scale model carcass washer. J Food Prot. 1994;57: 97-103.
Přejít k původnímu zdroji...
Přejít na PubMed...
- International Commission on Microbiological Specifications for Foods. Ecología Microbiana de los Alimentos, Vol II. Zaragoza, Spain, Ed. Acribia, S.A.1980.
- Chinen I, Tanaro JD, Miliwebsky E, Lound LA, Chillemi G, Ledri S, Baschkier A, Scarpin M, Manfredi E, Rivas M: Isolation and characterization of Escherichia coli O157:H7 from retail meats in Argentina. J Food Prot. 2001;64: 1346-1351.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Guth BEC, Chinen I, Miliwebsky E, CerqueiraAMF, Chillemi G,Andrade JRC, BaschkierA, Rivas M: Serotypes and shiga toxin genotypes among Escherichia coli isolated from animals and food inArgentina and Brazil. Vet Microbiol. 2003;92: 335-349.
Přejít k původnímu zdroji...
Přejít na PubMed...
- GuzmánAMS, Pederiva NB. de, Torres CN, Eiguer T, Gimenez DF: Yersinia enterocolitica: primeros aislamientos a partir de alimentos cárnicos en Argentina. Rev Arg Microbiol. 1984;16: 49-56 (in Spanish).
- Yamamoto SA, Harris LJ: The effects of freezing and thawing on the survival of Escherichia coli O157:H7 in apple juice. Int J Food Microbiol. Escherichia coli O157:H7 in apple juice. Int J Food Microbiol. Escherichia coli 2001;67: 89-96.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Laird WJ, Cavanaugh DC: Correlation of autoagglutination and virulence of Yersiniae. J Clin Microbiol. 1980;11: 430-432.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Higuchi K, Smith JL: Studies on the nutrition and physiology of Pasteurella pestis. VI. A differential plating medium for the estimation of the mutation rate to avirulence. J Bacteriol. 1961;81: 605-608.
Přejít k původnímu zdroji...
Přejít na PubMed...
- De la Canal JJ. CódigoAlimentarioArgentino. BuenosAires (Argentina), De la Canal &Asociados SRL. 2004. In: www.anmat.gov.ar/codigoa/caa1. htm
- Prasai RK, Kastner CL, Kenney PB, Kropf DH, Fung YC, Mease LE, Vogt LR, Johnson DE: Microbiological quality of beef subprimals as affected by lactic acid sprays applied at various points during vacuum storage. J Food Prot. 1997;60, 795-798.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Bollman J, IsmondA, Blank G: Survival of Escherichia coli O157:H7 in frozen foods: impact of the cold shock response. Int J Food Microbiol. 2001;64: 127-138.
Přejít k původnímu zdroji...
- Krause G, Terzagain R, Hammond R: Outbreak of Salmonella Serotype Anatum infection associated with unpasteurized orange juice. Med J. 2002;94: 1168-1172.
Přejít k původnímu zdroji...
- Belgique, France, Royaume-Uni et Le Resean Salm-Net/International Investigation: Belgium, United Kingdom, France and The Salm-Net Network: Preliminary report of an international outbreak of Salmonella anatum infection linked to an infant formula milk. Euro Surveill 1997;2: 22-24.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Sorensen O, Van Donkersgoed J, McFall M, Manninen K, Gensler G, Ollis G: Salmonella spp shedding byAlberta beef cattle and the detection of Salmonella spp in ground beef. J Food Prot. 2002;65: 484-491.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Bozaris IS, Adams MR: Temperature shock, injury, and transient sensitivity to nisin in Gram negative. J Appl Microbiol. 2001;91: 715-724.
Přejít k původnímu zdroji...
- Tennant SM, Grant TH, Robins-Browne RM: Pathogenicity of Yersinia enterocolitica biotype 1A. Immun Med Microbiol 2003;38: 127-137.
Přejít k původnímu zdroji...
- Ratnam S, Mercer E, Picco B, Parsons S, Butler R:Anosocomial outbreak of diarrheal disease due to Yersinia enterocolitica serotype O:5, biotype 1. J Infect Dis. 1982;145: 242-247.
Přejít k původnímu zdroji...
- Greenwood MH, Hooper WL: Excretion of Yersinia spp. associated with consumption of pasteurized milk. Epidemiol Infect. 1990;104: 345-350.
Přejít k původnímu zdroji...
Přejít na PubMed...
- Doores S. Organic acids. In: Davidson PM, Branen AL, eds. Antimicrobials in foods. New York, N.Y. Marcel Dekker, Inc. 1993: 95-136.
- Ray B, Sandine WE: Acetic, propionic, and lactic acids of starter culture bacteria as biopreservatives. In: Ray B, Dacschel M, eds. Food preservatives of microbial origin. Boca Raton, Fla, CRC Press 1992: 103-136.