측백엽 오일에 대한 탐구 Composition and variability of essential oils of Platycladus orientalis growing in China

<p><span style="font-size: 11pt;">beyond reason</span><br></p><p><span style="font-size: 11pt;"><br></span></p><p><span style="font-size: 14.6667px;">측백엽을 경옥고처럼 만든 약재에서 비염, 축농증에 놀라운 효과가 나오고 있어서...</span></p><p><span style="font-size: 14.6667px;">측백엽 오일에 관한 논문..</span></p><p><span style="font-size: 14.6667px;"><br></span></p><p><span style="font-size: 14.6667px;"></span><br></p><p style="text-align: center;"><img src="https://t1.daumcdn.net/cfile/cafe/99DA26475E627F0C20" class="txc-image" hspace="1" vspace="1" border="0" actualwidth="817" width="817" exif="{}" data-filename="스크린샷 2020-03-07 오전 1.48.31.png" style="clear:none;float:none;" id="A_99DA26475E627F0C20C654"/></p><p><span style="font-size: 14.6667px;"><br></span></p><h1 id="screen-reader-main-title" class="Head u-font-serif u-h2 u-margin-s-ver" style="box-sizing: border-box; margin-right: 0px; margin-left: 0px; padding: 0px; color: rgb(80, 80, 80); word-break: break-word; margin-top: 16px !important; margin-bottom: 16px !important; font-size: 1.5rem !important; font-weight: 400 !important; line-height: 1.333 !important; font-family: NexusSerif, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif !important;"><span class="title-text" style="box-sizing: border-box; margin: 0px; padding: 0px;">Composition and variability of essential oils of <em style="box-sizing: border-box; margin: 0px; padding: 0px;">Platycladus orientalis</em> growing in China</span></h1><div class="Banner" id="banner" style="box-sizing: border-box; margin: 0px 0px 8px; padding: 0px; color: rgb(46, 46, 46); font-family: NexusSans, Arial, Helvetica, "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", STIXGeneral, "Cambria Math", "Arial Unicode MS", sans-serif; font-size: 14px;"><div class="wrapper truncated" style="box-sizing: border-box; margin: 0px; padding: 0px;"><div class="AuthorGroups text-xs" style="box-sizing: border-box; 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margin: 0px 0px 24px; padding: 0px; border-bottom: 2px solid rgb(235, 235, 235); color: rgb(46, 46, 46); font-family: NexusSans, Arial, Helvetica, "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", STIXGeneral, "Cambria Math", "Arial Unicode MS", sans-serif; font-size: 14px;"></div><div class="Abstracts u-font-serif" id="abstracts" style="box-sizing: border-box; margin: 0px; padding: 0px; font-size: 18px; line-height: 26px; color: rgb(46, 46, 46); font-family: NexusSerif, Georgia, "Times New Roman", Times, STIXGeneral, "Cambria Math", "Lucida Sans Unicode", "Microsoft Sans Serif", "Segoe UI Symbol", "Arial Unicode MS", serif !important;"><div class="abstract author" id="aep-abstract-id4" lang="en" style="box-sizing: border-box; margin: 0px 0px 8px; padding: 0px;"><h2 class="section-title u-h3 u-margin-l-top u-margin-xs-bottom" style="box-sizing: border-box; margin-top: 32px !important; margin-right: 0px; margin-bottom: 8px !important; margin-left: 0px; padding: 0px; font-weight: 400 !important; color: rgb(80, 80, 80); font-size: 1.2rem !important; line-height: 1.333 !important;">Abstract</h2><div id="aep-abstract-sec-id5" style="box-sizing: border-box; margin: 0px; padding: 0px;"><p id="abspara0010" style="box-sizing: border-box; margin-bottom: 16px;">Essential oils were isolated from the leaves of <em style="box-sizing: border-box; margin: 0px; padding: 0px;">Platycladus orientalis</em> growing in 16 areas of China. The essential oils were analyzed by gas chromatography and gas chromatography-mass spectrometry. In total, 98 volatile compounds were identified. Chemical variability in essential oil composition was eval‎uated using cluster analysis and principal component analysis. The two analyses led to the identification of four chemotypes: α-pinene, α-pinene/3-carene, cedrol, and cedrol/terpinyl acetate. Geographically, the populations growing in close proximity had similar essential oil composition. The chemical variability could possibly be attributed to genetic and environmental factors.</p></div></div><div class="abstract graphical" id="aep-abstract-id6" style="box-sizing: border-box; margin: 0px 0px 8px; padding: 0px;"><div id="aep-abstract-sec-id7" style="box-sizing: border-box; margin: 0px; padding: 0px;"><h3 class="u-h4 u-margin-m-top u-margin-xs-bottom" style="box-sizing: border-box; margin-top: 24px !important; margin-right: 0px; margin-bottom: 8px !important; margin-left: 0px; padding: 0px; font-weight: 400 !important; line-height: 1.4 !important; font-size: 1rem !important; color: rgb(80, 80, 80);">Research highlights</h3><p id="abspara0015" style="box-sizing: border-box; margin-bottom: 16px;">►Essential oils from leaves of <em style="box-sizing: border-box; margin: 0px; padding: 0px;">Platycladus orientalis</em> growing in 16 areas of China have been analyzed simultaneously by GC and GC–MS. ►The chemical variability in <em style="box-sizing: border-box; margin: 0px; padding: 0px;">P. orientalis</em> essential oil has been compared among 16 different localities in China. ►Cluster analysis and principal component analysis led to the identification of four <em style="box-sizing: border-box; margin: 0px; padding: 0px;">P. orientalis</em> chemotypes: α-pinene, α-pinene/3-carene, cedrol, and cedrol/terpinyl acetate.</p></div></div></div><p><br></p>