白鱼粉储存环境对其品质变化的影响  

Effect of white fish meal storage environment on its quality changes

作　　者：李欣欣 乔煦玮 陈霞 李勇 陈林 苟雪玲 刘雨欣 王竹青 LI Xin-xin;QIAO Xu-wei;CHEN Xia;LI Yong;CHEN Lin;GOU Xue-ling;LIU Yu-xin;WANG Zhu-qing

机构地区：[1]新希望六和股份有限公司农业农村部饲料及畜禽产品质量安全控制重点实验室,四川成都610041 [2]四川新希望畜牧科技有限公司,四川成都610041 [3]四川新希望六和科技创新有限公司,四川成都610199 [4]山东新希望六和集团有限公司青岛市动物饲料安全重点实验室,山东青岛266100 [5]成都世纪投资有限公司,四川成都610095

出　　处：《饲料研究》2023年第22期145-150,共6页Feed Research

基　　金：国家重点研发计划(项目编号:2021YFD1301004)。

摘　　要：试验旨在研究白鱼粉储存过程中品质的变化规律。将白鱼粉分别储存在模拟低温冷库(温度12、10、8℃,相对湿度55%RH)环境和自然常规环境(温度18~27℃,相对湿度50%~70%RH),通过分析白鱼粉的水分、新鲜度(挥发性盐基氮、生物胺、酸价、丙二醛)和卫生指标(霉菌总数、沙门氏菌)研究白鱼粉品质的变化情况。结果表明,低温环境和自然环境储存的白鱼粉品质相当。在自然环境储存253 d,白鱼粉的水分含量和水分活度有所增加,但水分含量不高于10%,水分活度低于0.7;挥发性盐基氮(VBN)、酸价、丙二醛和生物胺变化较小,白鱼粉新鲜度未发生明显变化;霉菌总数符合《饲料卫生标准》(GB 13078-2017)的要求,未检出沙门氏菌。研究表明,白鱼粉储存时,可以通过控制环境温度(<27℃)、相对湿度(<70℃)、储存时间(<6个月)以及加强空气流通的方法确保白鱼粉的品质。The purpose of the study was to investigate the variation rules of white fish meal under different storage conditions.The moisture content,the freshness indexes(volatile basic nitrogen content,biogenic amine content,acid value and malondialdehyde content)and hygienic index(total mold count and salmonella)were monitored to investigate the quality change of white fish meal during storage under simulated cold storage(12,10,8℃,55%RH)and natural conventional storage(18~27℃,50%~70%RH)conditions,respectively.The results showed that the quality of the white fish meal stored under low-temperature environment and natural environment differed slightly.During the storage of the fish meal under natural environment for 253 d,the water content and water activity of the white fish meal increased.But the water content and water activity were less than 10%and 0.7,respectively.VBN,acid value,malondialdehyde and biogenic amines all changed slightly,thus the freshness of white fish meal had no significant change.The total number of molds was with in the limits of'Hygienical standard for feeds'(GB/T 13078—2017),and no Salmonella were detected.The study indicates that the key to ensuring the white fish meal quality during storage is to control the temperature(<27℃),relative humidity(<70%RH)and storage time(<6 months)and improve the air circulation.

关 键 词：白鱼粉 储存 水分 水分活度 新鲜度 霉变 

分 类 号：S816.9[农业科学—饲料科学]