摘要
研究了堆叠pH值对Mozzarella干酪熔化性的影响。通过考察不同堆叠pH值Mozzarella干酪贮藏1~7周的熔化性、可冻结水含量、pH值4.6可溶性氮含量、Urea-PAGE电泳,利用共聚焦激光扫描电镜、差示热量扫描仪、流变仪,探讨了堆叠pH值与Mozzarella干酪熔化特性的联系。结果表明,低堆叠pH值的Mozzarella干酪样品可冻结水含量低,结合水含量高,随贮藏期延长(21 d以上)蛋白水解片段增多,形成的纤维状结构更加有序,相应的熔化性更好。
The effect of different milling pH value on cheese meltability was studied.Combined with confocal laser scanning spectroscopy,DSC and rheometer techniques,meltability,freezable water content,pH 4.6-soluble protein and Urea-PAGE were analyzed during 1~7 weeks storages.Results showed that Mozzarella cheese with a low milling pH value had less freezable water and more binding water.When the storage prolonged(more than 21d),protein degradation increased,and better meltability was achieved.
出处
《农业机械学报》
EI
CAS
CSCD
北大核心
2011年第3期156-160,共5页
Transactions of the Chinese Society for Agricultural Machinery
基金
"十一五"国家科技支撑计划资助项目(2009BADB9B06)
北京市重大科技计划项目(D10110504600000)