...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Food analytical methods >Effect of the variables time and temperature on volatile compounds extraction of salami by solid phase microextraction.
【24h】

Effect of the variables time and temperature on volatile compounds extraction of salami by solid phase microextraction.

机译：时间和温度变量对固相微萃取法提取萨拉米香肠中挥发性化合物的影响。

获取原文
获取原文并翻译 | 示例
   

获取外文期刊封面封底 >>

       
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

The aim of this study was to determine the experimental conditions for extracting volatile compounds present in the headspace of a salami sample by solid phase microextraction (Carboxen/PDMS fiber), monitoring the individual aromas of the extracts directly in order to maintain the original aroma of the product. Additionally, extracts were analyzed in gas chromatograph equipped with flame ionization detector and mass spectrometer (GC-FID and GC/MS). Volatile compounds were separated in polar phase capillary column (DB-Wax). Response Surface Methodology was used to explain the effects of both time and temperature on the salami aroma and on the instrumental measurements. Trained judges analyzed the intensity of a characteristic aroma from 12 salami extracts directly in olfactometer coupled with a gas chromatograph. The sensory results generated a multivariate statistical model (R2 = 0.72, P < 0.05) that included linear time and temperature terms. The optimal conditions were determined to be an extraction period of 45 min at 50 degrees C, as the resulting extract received a mean sensory score of 7.15. This method allowed us to obtain a highly representative aroma of the product in an adequate time
机译：这项研究的目的是确定通过固相微萃取（Carboxen / PDMS纤维）提取萨拉米香肠样品顶部空间中存在的挥发性化合物的实验条件，直接监测提取物的各个香气以保持其原始香气。产品。此外，提取物在配有火焰离子化检测器和质谱仪（GC-FID和GC / MS）的气相色谱仪中进行分析。在极性相毛细管柱（DB-Wax）中分离挥发性化合物。响应面方法用于解释时间和温度对萨拉米香肠香气和仪器测量的影响。受过训练的法官直接在嗅觉仪和气相色谱仪之间分析了12种萨拉米香肠提取物的特征香气强度。感官结果生成了包含线性时间和温度项的多元统计模型（R 2 = 0.72，P <0.05）。确定最佳条件为在50摄氏度下45分钟的提取时间，因为所得提取物的平均感官评分为7.15。这种方法使我们能够在足够的时间内获得具有高度代表性的产品香气

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