Effect of gama irradiation (Co60) in the control of Enterococci spp. and Escherichia coli in chilled chicken (Gallus gallus) heart

Journal of Bioenergy and Food Science Pub Date : 2016-09-30 DOI:10.18067/JBFS.V3I3.116

Marta Maria Braga Baptista Soares Xavier, R. Franco, M. C. L. Souza, A. B. Fonseca, Wagner Thadeu Cardoso Esteves, Sheyla da Silva Duque

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引用次数: 2

Abstract

The present study aimed to evaluate the efficiency of the irradiation process in the control of Enterococci spp. and Escherichia coli in chilled chicken heart samples acquired in an industry located in the West Zone of Rio de Janeiro, Brazil, using irradiation doses of 1.5 kGy, 3, 0 kGy and 4.5 kGy. These microorganisms are related to fecal contamination, and are indicators of the sanitary processing conditions of the foodstuffs. The bacteriological analyses were conducted applying the methodologies and standards recommended by Brazilian norms resolution no. 12 (BRASIL, 2001) and instruction no. 62 (BRASIL, 2003) Regarding Escherichia coli, no statistically significant difference among the four groups (control, 1.5 kGy, 3.0 kGy and 4.5 kGy) was observed (p> 0.05). The Most Probable Number (MPN) for Enterococci spp. was not proven in the investigated samples. Thus, the Co60 gamma irradiation process was effective in eliminating Escherichia coli, and the lowest dose, of 1.5 kGy, was enough to abolish this enteropathogen from the evaluated samples.

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γ辐照(Co60)对冷鲜鸡心脏肠球菌和大肠杆菌的控制效果

本研究旨在评估辐照过程对巴西里约热内卢西区某工业企业获得的冷冻鸡心脏样品中肠球菌和大肠杆菌的控制效果，辐照剂量分别为1.5 kGy、3 kGy、0 kGy和4.5 kGy。这些微生物与粪便污染有关，是食品卫生加工条件的指标。细菌学分析是采用巴西标准第2号决议建议的方法和标准进行的。(巴西，2001年)第12号指令。62 (BRASIL, 2003)对于大肠杆菌，4组(对照组、1.5 kGy、3.0 kGy和4.5 kGy)间差异无统计学意义(p> 0.05)。在调查的样本中，肠球菌的最可能数量(MPN)尚未得到证实。因此，Co60 γ辐照过程对大肠杆菌是有效的，最低剂量为1.5 kGy，足以从评估样品中消除这种肠道病原体。

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Journal of Bioenergy and Food Science

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