用于肉类腐败监测的纳米银混合凝胶的简便制备  

Facile Preparation of Silver Nanoparticle-loaded Hybrid Gels for Meat Spoilage Monitoring

作　　者：胡安 夏碧华 蒋杰 李婷 陈明清 东为富 HU An;XIA Bi-hua;JIANG Jie;LI Ting;CHEN Ming-qing;DONG Wei-fu(Key Laboratory of Synthetic and Biological Colloids,Ministry of Education,School of Chemical and Material Engineering,Jiangnan University,Wuxi 214122,Jiangsu,China)

机构地区：[1]江南大学化学与材料工程学院教育部合成与生物胶体重点实验室,江苏无锡214122

出　　处：《食品研究与开发》2023年第5期106-112,140,共8页Food Research and Development

基　　金：国家自然科学基金(No.21975108);中央大学基础研究发展基金(JUSKP121033)。

摘　　要：为检测肉类腐败产生的H2S,制备银纳米颗粒混合双醛淀粉-壳聚糖-聚乙烯醇甘油凝胶。以木薯淀粉为原料,通过氧化反应,得到具有强还原基团的双醛淀粉。以壳聚糖和聚乙烯醇为交联剂,以甘油为溶剂,通过交联反应和原位还原反应,得到银纳米颗粒混合双醛淀粉-壳聚糖-聚乙烯醇甘油凝胶。所得银纳米颗粒混合凝胶具有较高的机械强度和形状稳定性,且对于硫化氢有快速高效的响应而出现明显的颜色变化,可用于智能包装材料监测鸡胸肉和猪里脊肉的品质。To detect the hydrogen sulfide(H2S)produced from meat spoilage,the Ag nanoparticle-loaded hybrid glycerogel composed of dialdehyde starch,chitosan,and polyvinyl alcohol was prepared. The dialdehyde starch with strong reducing groups was obtained by oxidization reaction of cassava starch. Chitosan and polyvinyl alcohol were used as the cross-linking agents,and glycerin as the solvent.Through cross-linking reaction and in-situ reduction reaction,the Ag nanoparticle-loaded hybrid gels were obtained. The resulting material had high mechanical strength and shape stability,as well as a fast and efficient response to H2S,resulting in a distinct color change that can be used as the intelligent packaging material for monitoring the quality of chicken breast and pork tenderloin.

关 键 词：双醛淀粉 交联 银纳米颗粒 甘油 硫化氢传感器 

分 类 号：TS251.7[轻工技术与工程—农产品加工及贮藏工程] O648.17[轻工技术与工程—食品科学与工程]