Department of Food Hygiene and Food Technology, Veterinary Faculty, University of León, 24071 León, Spain.
J Food Prot. 2013 Nov;76(11):1977-80. doi: 10.4315/0362-028X.JFP-13-175.
The antimicrobial effectiveness of five chemical decontaminants (12 % trisodium phosphate [TSP], 1,200 ppm acidified sodium chlorite [ASC], 2 % citric acid [CA], 220 ppm of peroxyacids [PA], or 50 ppm of chlorine dioxide [CD]) against psychrotrophic populations on skinned chicken legs was assessed throughout 120 h of storage under various temperature abuse scenarios. Three different simulated cold chain disruptions were used: T1 (12 h at 1 ± 1 °C, 6 h at 15 ± 1 °C, and 102 h at 4 ± 1 °C), T2 (18 h at 1 ± 1 °C, 6 h at 15 ± 1 °C, and 96 h at 10 ± 1 °C), or T3 (18 h at 4 ± 1 °C, 6 h at 20 ± 1 °C, and 96 h at 7 ± 1 °C). Microbiological analyses were carried out at 0, 24, 72, and 120 h of storage. Substantial microbial reductions, with respect to control (untreated) samples, were obtained in legs treated with TSP, ASC, and CA, with average values ranging from 1.54 ± 1.52 to 2.02 ± 2.19 log CFU/cm(2). TSP was the most effective compound under mild abuse temperature conditions (T1), with mean reductions of 2.01 ± 1.67 log CFU/cm(2), whereas ASC, followed by CA, proved to be particularly useful under moderate abuse conditions (T3; average reductions of 2.99 ± 2.27 and 1.98 ± 1.65 log CFU/cm(2), respectively). Treatment with PA or CD resulted in minimal microbial reductions.
五种化学消毒剂（12%三磷酸钠[TSP]、1200ppm 酸化亚氯酸钠[ASC]、2%柠檬酸[CA]、220ppm 过氧酸[PA]或 50ppm 二氧化氯[CD]）对去皮鸡腿上嗜冷菌种群的抗菌效果在各种温度滥用情况下 120 小时的储存过程中进行了评估。使用了三种不同的模拟冷链中断：T1（12 小时在 1±1°C，6 小时在 15±1°C，102 小时在 4±1°C）、T2（18 小时在 1±1°C，6 小时在 15±1°C，96 小时在 10±1°C）或 T3（18 小时在 4±1°C，6 小时在 20±1°C，96 小时在 7±1°C）。在储存 0、24、72 和 120 小时时进行了微生物分析。与对照（未处理）样品相比，TSP、ASC 和 CA 处理的鸡腿中微生物数量大量减少，平均值范围为 1.54±1.52 至 2.02±2.19 log CFU/cm(2)。TSP 在轻度滥用温度条件（T1）下是最有效的化合物，平均减少 2.01±1.67 log CFU/cm(2)，而 ASC，其次是 CA，在中度滥用条件（T3）下特别有用，平均减少 2.99±2.27 和 1.98±1.65 log CFU/cm(2)。用 PA 或 CD 处理导致微生物数量减少最小。
