...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>International Journal of Dairy Technology >Influence of added calcium chloride on the heat stability of unconcentrated and concentrated bovine milk
【24h】

Influence of added calcium chloride on the heat stability of unconcentrated and concentrated bovine milk

机译：氯化钙添加对未浓缩和浓缩牛乳热稳定性的影响

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The influence of added calcium chloride (1-10 mmol/L) on the heat-induced coagulation of skim bovine milk was examined. Unconcentrated milk displayed a pH-heat coagulation time (HCT) profile with a maximum at pH 6.6 and minimum at pH 7.0. Adding calcium chloride to unconcentrated milk progressively reduced the HCT at the maximum, increased the pH at which the maximum occurred and reduced the HCT at pH > 7.0. For concentrated milk, the shape of the pH-HCT profile, that is, a maximum at pH 6.6, was not altered by added calcium chloride, but HCT was reduced progressively with increasing concentration of calcium chloride. Preheating (90pC for 10 min) shifted the maximum in the pH-HCT profile of unconcentrated milk to a more acidic pH, and addition of 5 mmol/L calcium chloride to preheated milk induced changes in heat stability similar to those noted for unheated milk. Addition of calcium chloride to milk prior to preheating strongly reduced the stability of milk against heat-induced coagulation. These data suggest that calcium has a strong destabilizing effect on the stability of milk systems against heat-induced coagulation.
机译：研究了添加氯化钙（1-10 mmol / L）对脱脂牛乳热诱导凝结的影响。未浓缩的牛奶显示出pH-热凝时间（HCT）曲线，在pH 6.6时最大，在pH 7.0时最小。在未浓缩牛奶中添加氯化钙会最大程度地降低HCT，增加最大出现时的pH值，并在pH> 7.0时降低HCT。对于浓缩牛奶，添加氯化钙不会改变pH-HCT曲线的形状，即在pH 6.6时达到最大值，但随着氯化钙浓度的增加，HCT会逐渐降低。预热（90pC 10分钟）将未浓缩牛奶的pH-HCT曲线最大值移至更酸性的pH，向预热牛奶中添加5 mmol / L氯化钙引起的热稳定性变化与未加热牛奶相似。在预热之前向牛奶中添加氯化钙会大大降低牛奶抵抗热诱导凝结的稳定性。这些数据表明，钙对牛奶系统的稳定性具有很强的去稳定作用，可防止热量引起的凝结。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号