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来自欧盟一家生产商的未调味火鸡肉末微生物状况研究——一种具有潜在风险的新产品?

Study on the microbial status of unseasoned ground turkey meat from an EU producer-a new product with risk potential?

作者信息

Remm K, Koch K, Von Muffling T, Nowak B

机构信息

Institute for Food Quality and Food Safety, University of Veterinary Medicine Hannover, Hannover, Germany.

出版信息

Br Poult Sci. 2009 Jul;50(4):495-503. doi: 10.1080/00071660903110877.

Abstract
  1. The aim of this study was to point out potential risks associated with a product new to the market in the European Union: unseasoned minced turkey meat. 2. On 6 d of sampling, minced turkey meat from a large-scale EU producer was analysed at 4 processing stages. 3. The packaged minced meat was examined during 10 d of storage, once using the legally recommended conditions (<+2 degrees C), and then under simulated consumer handling; one batch was stored for 3 d at +2 degrees C then kept for 45 min at 25 degrees C and then stored at +7 degrees C. Microbiological and physical variables were tested on 5 d. 4. Results showed that the mean total aerobic plate count (APC) of the unprocessed material was 3.8 log CfU/g and did not rise significantly, although the temperature rose briefly after the material left the meat chopper. Listeria monocytogenes was the pathogen detected most often, in 7 (14.6%) of 48 samples, followed by Salmonella in one (2.1%). No Campylobacter were found. 5. Initial contamination (APC) of about 4.5 log CfU/g was common in stored minced meat, conforming to European Union Regulations EC 2073/2005 and 1441/2007. Brochothrix thermosphacta and Pseudomonas spp. were the bacteria found most frequently. Under strict maintenance at a storage temperature of +2 degrees C, the maximum microbiological stability of the material was 7 d. Under simulated consumer handling, the microbial counts increased significantly, immediately after transport. 6. Our findings indicate that unseasoned minced turkey meat is a risky, perishable product, especially if the raw material does not have a low APC, is not pathogen-free and is kept under typical consumer handling and storage conditions.
摘要
  1. 本研究的目的是指出欧盟市场上一种新产品——未调味火鸡肉末所存在的潜在风险。2. 在采样的第6天,对来自一家欧盟大型生产商的火鸡肉末在4个加工阶段进行了分析。3. 对包装好的肉末在储存10天期间进行了检查,一次是按照法定推荐条件(<+2摄氏度),然后是在模拟消费者处理的情况下;一批样品先在+2摄氏度下储存3天,然后在25摄氏度下放置45分钟,接着在+7摄氏度下储存。在第5天对微生物和物理变量进行了检测。4. 结果表明,未加工材料的平均需氧平板计数(APC)为3.8 log CFU/g,并且虽然材料离开绞肉机后温度短暂上升,但该计数并未显著增加。单核细胞增生李斯特菌是最常检测到的病原体,在48个样本中有7个(14.6%)检测到该菌,其次是沙门氏菌,有1个(2.1%)样本检测到。未发现弯曲杆菌。5. 储存的肉末中初始污染(APC)约为4.5 log CFU/g很常见,符合欧盟法规EC 2073/2005和1441/2007。热杀索丝菌和假单胞菌属是最常发现的细菌。在严格维持在+2摄氏度的储存温度下,材料的最大微生物稳定性为7天。在模拟消费者处理的情况下,运输后微生物数量立即显著增加。6. 我们的研究结果表明,未调味火鸡肉末是一种有风险的易腐产品,特别是如果原材料的APC不低、不是无病原体的,并且在典型的消费者处理和储存条件下保存。

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