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Effects of Slightly Acidic Low Concentration Electrolyzed Water on Microbiological, Physicochemical, and Sensory Quality of Fresh Chicken Breast Meat

机译:弱酸性低浓度电解水对新鲜鸡肉的微生物,理化和感官品质的影响

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摘要

Anticmicrobial effect of slightly acidic low concentration electrolyzed water (SlALcEW) and strong acidic electrolyzed water (StAEW) on fresh chicken breast meat was evaluated in this study. Meat samples each of 10 ± 0.2 g in weight and 2.5 x 2.5 cm2 in size were experimentally inoculated with Listeria monocytogenes (ATCC 19115) and Salmonella Typhimurium (ATCC 14028) and subjected to dipping treatment (22 ± 2 ℃ for 10 min) with SlALcEW and StAEW. Shelf-life study was conducted for inoculated and noninoculated meat samples treated with SlALcEW, and StAEW at storage temperatures of 5, 15, and 25 ℃. Dipping treatment with electrolyzed water significantly (P < 0.05) reduced the background and inoculated pathogens compared to untreated controls. The reduction of 1.5 to 2.3 log CFU/g was achieved by SlALcEW and StAEW against background flora, L. monocytogenes and Salmonella Typhimurium. There was no significant difference (P > 0.05) between the SlALcEW and StAEW treatments efficacy. Comparing treated samples to untreated controls showed that SlALcEW and StAEW treatments extended the shelf life of chicken meat at different temperatures with marginal changes of sensory quality. Although SlALcEW and StAEW treatments showed similar antimicrobial effects but SlALcEW was more beneficial in practical application for its semineutral pH and low chlorine content.
机译:在本研究中,评估了弱酸性低浓度电解水(SlALcEW)和强酸性电解水(StAEW)对新鲜鸡肉的抗微生物作用。用单核细胞增生性李斯特菌(ATCC 19115)和鼠伤寒沙门氏菌(ATCC 14028)分别接种重量为10±0.2 g和尺寸为2.5 x 2.5 cm2的肉样品,并用SlALcEW进行浸蘸处理(22±2℃10分钟)和StAEW。在5、15和25℃的储存温度下,对经SlALcEW和StAEW处理的接种和未接种肉样品进行了保质期研究。与未处理的对照组相比,用电解水浸渍处理显着降低了本底和接种病原体(P <0.05)。通过SlALcEW和StAEW针对背景菌群,单核细胞增生李斯特氏菌和鼠伤寒沙门氏菌,可将1.5 log CFU / g降低至1.5 log CFU / g。 SlALcEW和StAEW治疗的疗效之间无显着差异(P> 0.05)。将处理过的样品与未处理过的对照进行比较表明,SlALcEW和StAEW处理可延长鸡肉在不同温度下的保质期,且感官质量会有轻微变化。尽管SlALcEW和StAEW处理显示出相似的抗菌作用,但SlALcEW由于其半中性pH和低氯含量而在实际应用中更为有益。

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