Evidence map›Paper›PMID 41846071›Full record

ArticlePoultry science2026

Research note: Stage-associated differences in hygiene indicator bacteria from pre-chlorinated water immersion chilling (CWIC) carcasses through CWIC to packaged quail products.

Hyunsook Kim, Hye-Young Youn, Hyeon-Jin Kim, Yong-Seok Jang, Jungwhan Chon, Kwang-Young Song, Kun-Ho Seo

Abstract read
In one paragraph

Article in Poultry science, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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1 · What the graph read from it

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2 · The registry

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3 · Its place in the literature

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4 · The record

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5 · Who and what money

Authors and funding

7 authors.

Hyunsook KimDepartment of Food Nutrition, College of Human Ecology, Hanyang University, Seoul 04763, South Korea.
Hye-Young YounCenter for One Health, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, South Korea.
Hyeon-Jin KimCenter for One Health, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, South Korea.
Yong-Seok JangCenter for One Health, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, South Korea.
Jungwhan ChonDepartment of Food Science and Biotechnology, Kangwon National University, Chuncheon 24341, South Korea.
Kwang-Young SongDepartment of Companion Animal Health and Pet Industry, Daegu Haany University, Gyeongsan-si 38610, South Korea.
Kun-Ho SeoCenter for One Health, College of Veterinary Medicine, Konkuk University, Hwayang-dong, Gwangjin-gu, Seoul 05029, South Korea. Electronic address: bracstu3@konkuk.ac.kr.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Commercial processing of quails has been less studied than broiler processing, despite the food safety relevance of hygienic control in poultry slaughter operations. This study characterized hygiene indicator bacteria in quail carcasses pre- and post-chlorinated water immersion chilling (CWIC), in finished packaged products, and in selected processing-environment matrices across three independent trials in a commercial facility. In each trial, whole-carcass rinse samples were collected from pre-CWIC (n = 5) and post-CWIC (n = 5) carcasses, with technical triplicate plating for each carcass. The finished packaged products (n = 15 per trial) and environmental samples (gloves, precooling chamber floor, aspiration inlet opening, wash water, and CWIC water) were also evaluated. Aerobic plate counts (APC), coliforms, and Escherichia coli were enumerated and expressed as log colony forming units (CFU)/mL. Qualitative screening for Salmonella was performed using enrichment. Across trials, CWIC reduced APC; however, the magnitude varied (Trial 1: 2.75-2.28 log CFU/mL; Trial 2: 4.60-2.35 log CFU/mL; and Trial 3: 3.21-3.08 log CFU/mL). Coliforms and E. coli were not detected in Trial 1 carcass-stage samples. Trial 2 showed decreased coliforms post-CWIC, with E. coli not detected in the post-CWIC group. Trial 3 showed detectable coliforms and E. coli both pre- and post-CWIC. In all trials, packaged finished products exhibited higher indicator levels than post-CWIC carcasses, including higher APC (4.05-4.88 log CFU/mL across trials). Gloves consistently showed the highest indicator counts among the environmental matrices, whereas wash water and CWIC water were negative in Trial 1 but showed detectable APC in Trials 2 and 3, indicating variability in process hygiene. Salmonella was not detected in any of the carcass stages, packaged products, or environmental samples tested. Overall, the data identified post-wash handling points and water/disinfectant management as practical targets for verification to improve hygiene consistency during commercial quail processing.

Indexed as

Food HandlingFood MicrobiologyMeatAnimalsCold TemperatureColony Count, MicrobialEnterobacteriaceaeFood PackagingFood, ProcessedImmersionQuailAerobic plate countCarcass rinseEscherichia coliImmersion chillingQuail processing

Identifiers

PMID41846071
PMCPMC13010893

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.