Nonvolatiles of Commercial Lime and Grapefruit Oils Separated by High-Speed Countercurrent Chromatography
作者:Wolfgang Feger、Herbert Brandauer、Paulina Gabris、Herta Ziegler
DOI:10.1021/jf052267t
日期:2006.3.1
The nonvolatile fractions of cold-pressed peel oils of Key and Persian lime as well as grapefruit were separated by high-speed countercurrent chromatography (HS-CCC). In addition to the isolation of the main coumarins, psoralens and polymethoxyflavones, a number of minor constituents were enriched and successfully characterized by GC-MS and HPLC-UV. 5,7,8-Trimethoxycoumarin and the cyclical acetals
通过高速逆流色谱法(HS-CCC)分离Key和波斯石灰的冷压果皮油的非挥发性馏分以及葡萄柚。除了分离主要香豆素,补骨脂素和聚甲氧基黄酮,还富集了许多次要成分,并通过GC-MS和HPLC-UV对其进行了成功表征。确定5,7,8-三甲氧基香豆素和水合氧化金丝桃宁与柠檬醛的环状缩醛为石灰油的新的非挥发性痕量成分,并通过NMR光谱法确认。柠檬酸氧杂二十二烷基乙缩醛特别是在A型键石灰油中发现,由于汁液与油的接触,在工业加工过程中暴露于酸性条件下。一些已确认的次要成分,例如青花烯酚,异氧哌丁宁,