冷却猪肉贮藏过程中主要腐败菌的聚类分析

被引:18
作者
李苗云
赵改名
张建威
张秋会
朱应举
机构
[1] 不详
[2] 河南农业大学食品科学技术学院/河南省肉制品加工与质量安全控制重点实验室
[3] 不详
关键词
冷却猪肉; 腐败; 腐败菌; 聚类分析;
D O I
暂无
中图分类号
TS251.44 [];
学科分类号
摘要
【目的】确定冷却猪肉贮藏过程中对腐败的群体效应起关键作用的腐败菌,为微生物的控制和货架期的延长提供理论依据。【方法】分别接种单一的和混合细菌于猪肉表面,托盘包装后在4℃下贮藏,测定不同贮藏时间的品质状况,对不同组别的品质指标进行聚类分析。【结果】冷却猪肉在托盘包装贮藏时,单一菌类与混合菌组被聚为3组,单一菌类为一组,不同混合菌类被聚为两组。气单胞菌、热杀索丝菌、肠杆菌科细菌和假单胞菌的混合菌组与自然污染的微生物组聚在同一组中,且距离最小,其欧氏平方距离为45.797。因此,影响肉品腐败不是单独的某一类微生物的作用,而是多种腐败菌的相互作用。【结论】冷却猪肉低温贮藏时,在混合细菌(包括气单胞菌、热杀索丝菌、肠杆菌科细菌和假单胞菌)导致产品腐败的进程中,气单胞菌对腐败的群体效应起关键作用。
引用
收藏
页码:2531 / 2537
页数:7
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