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Simple and rapid detection of Campylobacter spp. in naturally contaminated chicken-meat samples by combination of a two-step enrichment method with an immunochromatographic assay.
Int J Food Microbiol. 2010 Aug 15; 142(1-2):256-9.IJ

Abstract

A simple and rapid method to detect Campylobacter spp. in chicken-meat samples was established. This method consisted of a combination of a two-step enrichment method with a commercially available immunochromatographic assay, named NH Immunochromato Campylobacter (NH IC Campy, Nippon Meat Packers, Ibaraki, Japan), which is able to detect Campylobacter antigen in an enrichment culture within 15 min. The enrichment method did not require much blood or a particular system of generating a microaerobic atmosphere, in contrast to the standard method of enriching Campylobacter spp. in chicken-meat samples. The sensitivity of a combination of the two-step enrichment method with NH IC Campy for detection of non- and freeze-stressed Campylobacter spp. in spiked chicken meat was determined using bacterial cells of Campylobacter jejuni and Campylobacter coli. The detection sensitivities for non-stressed C. jejuni and C. coli were found to range from 5.5 to 1.3x10(1) CFU per 25 g of chicken meat, and those for freeze-stressed C. jejuni and C. coli were found to range from 9.2x10(1) to 1.5x10(2) CFU per 25 g of chicken meat. When a total of 68 chicken-meat samples were tested, the combination method determined that 61 samples were positive for Campylobacter spp. This method was more sensitive than a bacterial culture test, which consists of standard enrichment culturing and plating onto selective agars. Because the combination could be conducted in approximately 48 h, from the beginning of the enrichment culture to final determination, it was more rapid than the bacterial culture test, which requires four to five days. Moreover, the combination was simple to perform. These results suggest that combining the two-step enrichment method with NH IC Campy is useful as a simple and rapid alternative to the conventional bacterial culture test for detecting Campylobacter spp. in naturally contaminated chicken meat samples.

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Authors+Show Affiliations

Kawatsu K
Division of Bacteriology, Osaka Prefectural Institute of Public Health, Higashinari-ku, Osaka, Japan. kawatu@iph.pref.osaka.jp
Taguchi M
No affiliation info available
Yonekita T
No affiliation info available
Matsumoto T
No affiliation info available
Morimatsu F
No affiliation info available
Kumeda Y
No affiliation info available

MeSH

AnimalsCampylobacterChickensColony Count, MicrobialFood ContaminationImmunoassayMeatSensitivity and Specificity

Pub Type(s)

Evaluation Study
Journal Article

Language

eng

PubMed ID

20621373

Citation

Kawatsu, K, et al. "Simple and Rapid Detection of Campylobacter Spp. in Naturally Contaminated Chicken-meat Samples By Combination of a Two-step Enrichment Method With an Immunochromatographic Assay." International Journal of Food Microbiology, vol. 142, no. 1-2, 2010, pp. 256-9.
Kawatsu K, Taguchi M, Yonekita T, et al. Simple and rapid detection of Campylobacter spp. in naturally contaminated chicken-meat samples by combination of a two-step enrichment method with an immunochromatographic assay. Int J Food Microbiol. 2010;142(1-2):256-9.
Kawatsu, K., Taguchi, M., Yonekita, T., Matsumoto, T., Morimatsu, F., & Kumeda, Y. (2010). Simple and rapid detection of Campylobacter spp. in naturally contaminated chicken-meat samples by combination of a two-step enrichment method with an immunochromatographic assay. International Journal of Food Microbiology, 142(1-2), 256-9. https://doi.org/10.1016/j.ijfoodmicro.2010.06.010
Kawatsu K, et al. Simple and Rapid Detection of Campylobacter Spp. in Naturally Contaminated Chicken-meat Samples By Combination of a Two-step Enrichment Method With an Immunochromatographic Assay. Int J Food Microbiol. 2010 Aug 15;142(1-2):256-9. PubMed PMID: 20621373.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Simple and rapid detection of Campylobacter spp. in naturally contaminated chicken-meat samples by combination of a two-step enrichment method with an immunochromatographic assay. AU - Kawatsu,K, AU - Taguchi,M, AU - Yonekita,T, AU - Matsumoto,T, AU - Morimatsu,F, AU - Kumeda,Y, Y1 - 2010/06/25/ PY - 2010/02/07/received PY - 2010/05/14/revised PY - 2010/06/15/accepted PY - 2010/7/13/entrez PY - 2010/7/14/pubmed PY - 2010/12/14/medline SP - 256 EP - 9 JF - International journal of food microbiology JO - Int J Food Microbiol VL - 142 IS - 1-2 N2 - A simple and rapid method to detect Campylobacter spp. in chicken-meat samples was established. This method consisted of a combination of a two-step enrichment method with a commercially available immunochromatographic assay, named NH Immunochromato Campylobacter (NH IC Campy, Nippon Meat Packers, Ibaraki, Japan), which is able to detect Campylobacter antigen in an enrichment culture within 15 min. The enrichment method did not require much blood or a particular system of generating a microaerobic atmosphere, in contrast to the standard method of enriching Campylobacter spp. in chicken-meat samples. The sensitivity of a combination of the two-step enrichment method with NH IC Campy for detection of non- and freeze-stressed Campylobacter spp. in spiked chicken meat was determined using bacterial cells of Campylobacter jejuni and Campylobacter coli. The detection sensitivities for non-stressed C. jejuni and C. coli were found to range from 5.5 to 1.3x10(1) CFU per 25 g of chicken meat, and those for freeze-stressed C. jejuni and C. coli were found to range from 9.2x10(1) to 1.5x10(2) CFU per 25 g of chicken meat. When a total of 68 chicken-meat samples were tested, the combination method determined that 61 samples were positive for Campylobacter spp. This method was more sensitive than a bacterial culture test, which consists of standard enrichment culturing and plating onto selective agars. Because the combination could be conducted in approximately 48 h, from the beginning of the enrichment culture to final determination, it was more rapid than the bacterial culture test, which requires four to five days. Moreover, the combination was simple to perform. These results suggest that combining the two-step enrichment method with NH IC Campy is useful as a simple and rapid alternative to the conventional bacterial culture test for detecting Campylobacter spp. in naturally contaminated chicken meat samples. SN - 1879-3460 UR - https://www.unboundmedicine.com/medline/citation/20621373/Simple_and_rapid_detection_of_Campylobacter_spp__in_naturally_contaminated_chicken_meat_samples_by_combination_of_a_two_step_enrichment_method_with_an_immunochromatographic_assay_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0168-1605(10)00336-3 DB - PRIME DP - Unbound Medicine ER -