盐湿驴皮的存储稳定性研究  

Storage Stability of Wet-Salted Donkey Hide

作　　者：汪徽 王梦园 余跃[1,2] 段小波 周建飞 嵇传良[3] 曾运航 朱小营[3] WANG Hui;WANG Mengyuan;YU Yue;DUAN Xiaobo;ZHOU Jianfei;JI Chuanliang;ZENG Yunhang;ZHU Xiaoying(National Engineering Laboratory for Clean Technology of Leather Manufacture,Sichuan University,Chengdu 610065,China;Key Laboratory of Leather Chemistry and Engineering of Ministry of Education,Sichuan University,Chengdu 610065,China;Dong'e Ejiao Co.,Ltd.,Shandong Engineering Research Center of Gelatin-Based Traditional Chinese Medicine Technological Innovation and Application,Liaocheng 252201,China)

机构地区：[1]四川大学制革清洁技术国家工程实验室,四川成都610065 [2]四川大学皮革化学与工程教育部重点实验室,四川成都610065 [3]东阿阿胶股份有限公司胶类中药技术创新与应用山东省工程研究中心,山东聊城252201

出　　处：《中国皮革》2024年第12期1-6,共6页China Leather

基　　金：中央引导地方科技发展资金项目(YDZX2023090)。

摘　　要：本文研究了盐湿驴皮在低温低湿(10℃,45%RH)、中温中湿(20℃,65%RH)和高温高湿(30℃,75%RH)3种条件下的存储稳定性。结果显示,虽然存储条件对盐湿驴皮中的盐含量无明显影响,但会影响其水分活度,进而影响微生物的生长和蛋白质的腐败变质程度。当温度不超过20℃且相对湿度不超过65%时,盐湿驴皮的水分活度保持在0.75以下。在此条件下,微生物生长受到限制,盐湿驴皮中的菌落总数不超过14×10^(4)CFU/g,蛋白基本不会发生腐败变质,可稳定存储6个月以上。然而,在高温高湿条件下,盐湿驴皮的水分活度超过0.80,微生物繁殖迅速,导致蛋白快速腐败变质。因此,盐湿驴皮的存储建议选择阴凉干燥环境,并严格避免高温高湿条件。该研究为盐湿驴皮的稳定储存提供了科学指导。This study investigated the storage stability of wet-salted donkey hide under three storage conditions:low temperature and humidity(10℃,45%RH),medium temperature and humidity(20℃,65%RH),and high temperature and humidity(30℃,75%RH).The results show that although storage conditions have negligible influ-ence on the salt content of wet-salted donkey hide,they obviously affect water activity,which in turn influence micro-bial growth and protein spoilage levels.When the temperature remains below 20℃and the relative humidity does not exceed 65%,the water activity of wet-salted donkey hide is maintained below 0.75,effectively limiting microbia growth to a maximum of 14×10^(4)CFU/g.Under these conditions,protein degradation is effectively prevented,enab-ling stable storage for over six months.However,under high temperature and humidity conditions,the water activity of wet-salted donkey hide exceeds 0.80,leading to rapid microbial proliferation and subsequent protein degradation.Therefore,storing wet-salted donkey hide in a cool and dry environment while strictly avoiding high temperature and humidity conditions is recommended.This study provides scientific guidance for the stable preservation of wet-salted donkey hide.

关 键 词：盐湿驴皮 存储稳定性 温度 湿度 水分活度 菌落总数 

分 类 号：TS52[轻工技术与工程—皮革化学与工程]