Effect of drying temperature on alkylamide and cichoric acid concentrations of Echinacea purpurea
Effect of drying temperature on alkylamide and cichoric acid concentrations of Echinacea purpurea
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DOI：
10.1021/jf026213k
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发表时间：
2003-03-12
影响因子：
6.1
通讯作者：
Wills, RBH
中科院分区：
文献类型：
--
作者：
Stuart, DL;Wills, RBH
在40-70 ℃的温度范围内用热空气干燥紫锥菊的根和地上部分（花、茎和叶），并在干燥后测定烷基酰胺和菊苣酸的浓度。增加干燥温度从48小时在40 degreesC下降到9小时在70 degreesC，但导致菊苣酸的浓度降低，在所有植物部分与更大的损失从地上植物部分比从根。然而，在任何干燥温度下，烷基酰胺的浓度均无显著差异。因此，紫锥菊干燥的操作参数的建立必须围绕更不稳定的菊苣酸来构建。
Root and aerial sections (flower, stem, and leaf) of Echinacea purpurea were dried with hot air at temperatures in the range of 40-70 degreesC, and the concentrations of alkylamides and cichoric acid were determined after drying. Increasing drying temperature decreased from 48 h at 40 degreesC to 9 h at 70 degreesC but resulted in a decreased concentration of cichoric acid in all plant sections with a greater loss from aerial plant parts than from the root. There was, however, no significant difference in the concentration of the alkylamides at any drying temperature. Establishment of operational parameters for the drying of echinacea must therefore be structured around the more labile cichoric acid.