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当前位置: 首页 > 文章 > 外源激活乳过氧化物酶体系对生鲜牛乳保鲜效果的影响 河南农业大学学报 2006,40 (4) 402-405
Position: Home > Articles > Effects on the Fresh-Keeping of the Raw Milk by Exogenous Activating Lactoperoxidase System Journal of Henan Agricultural University 2006,40 (4) 402-405

外源激活乳过氧化物酶体系对生鲜牛乳保鲜效果的影响

作  者：
杨雪峰;钟华;王清华;高腾云;黄向丽;刘运平
单  位：
河南科技学院动物科学学院;河南农业大学牧医工程学院
关键词：
乳过氧化物酶体系;生鲜牛乳;激活;保鲜
摘  要：
采用外源激活不同组分浓度的乳过氧化物酶体系进行研究,试验分为A,B和C组,各组生鲜牛乳中依次分别加入NaSCN 12,15和20 mg.L-1后,再分别都加入H2O29μL.L-1,旨在对比研究其对生鲜牛乳的保鲜效果.结果表明,外源激活不同组分浓度的LPS对生鲜牛乳都具有保鲜作用,但保鲜效果不同.试验A,B和C组的牛乳保鲜期分别为17,20.5和21 h,与对照组相比,分别延长了4,8和8.5 h,同时还提高了1~2个卫生等级,表明B组和C组比A组保鲜效果好,但由于C组牛乳中的SCN-含量超过了规定,因此以B组的保鲜效果最佳.
译  名：
Effects on the Fresh-Keeping of the Raw Milk by Exogenous Activating Lactoperoxidase System
作  者：
YANG Xue-feng~1,ZHONG Hua~1,WANG Qing-hua~1,GAO Teng-yun~2,HUANG Xiang-li~1,LIU Yun-ping~1(1.College of Animal Science,Henan Institute of Science and Technology,Xinxiang 453003,China;2.Engineering College of Animal Husbandry and Veterinary Science,Henan Agricultural University,Zhengzhou 450002,China)
关键词：
lactoperoxidase system(LPS);raw milk;activating;fresh-keeping
摘  要：
The aim of the research was to contrast the effect of different concentration Lactoperoxidase System(LPS) by exogenous activating on the fresh-keeping of the raw milk.12,15 and 20 mg·L~(1) sodium thiocyanate were added respectively into the raw milk of the experimental Group A,Group B and Group C in proper order,then 9 μL·L~(-1) hydrogen peroxide was added respectively into each of the experimental groups.The results showed that different concentration of LPS had different effects of keeping freshness.Milk fresh period of Group A,Group B and Group C was respectively 17,20.5 and 21 hours,prolonged correspondingly the preservative time by 4,8 and 8.5 hours,and improved the hygienic grade by about 1 or 2 grade at the same time compared with the control raw milk.These facts suggested that fresh-keeping effect of Group B and Group C was better than that of Group A.On the other hand,because the salt thiocyanate of raw milk in Group C exceeded the limits,the best effect was produced by Group B among the three groups.

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