%0 Journal Article
%T Diurnal Effects on Chinese Wild <i>Ledum palustre</i> L. Essential Oil Yields and Composition
%A Liangliang Zhang
%A Hongxiao Wang
%A Yongmei Wang
%A Man Xu
%A Xinyu Hu
%J Journal of Analytical Sciences, Methods and Instrumentation
%P 47-55
%@ 2164-2753
%D 2017
%I Scientific Research Publishing
%R 10.4236/jasmi.2017.72005
%X This study was conducted to evaluate the diurnal effect on essential oil yield and composition of <em>Ledum palustre</em> L. grown in northern Inner Mongolia, China. Essential oil content and composition were determined and compared as a function of different harvesting times viz. 7:00 AM, 11:00 AM, 3:00 PM, 7:00 PM, and 11:00 PM within a day. The essential oil obtained by hydrodistillation was investigated by gas chromatography-mass spectrometry (GC-MS). The yield of essential oil was varied from 1.21% to 1.62%; the maximum oil yield was obtained at 3:00 PM and the minimum at 7:00 PM. Similar to oil yield, qualitative difference in essential oil composition of <em>L. palustre</em> was observed. For the best essential oil yields, <em>L. palustre</em> should be harvested during 11:00 AM to 3:00 PM.
%K &lt
%K i&gt
%K Ledum palustre&lt
%K /i&gt
%K L.
%K Diurnal Changes
%K Essential Oil Yield
%K Essential Oil  Composition
%K Alpha-Thujenal
%U http://www.scirp.org/journal/PaperInformation.aspx?PaperID=76843