<?xml version="1.0" encoding="UTF-8"?><xml><records><record><source-app name="Biblio" version="7.x">Drupal-Biblio</source-app><ref-type>17</ref-type><contributors><authors><author><style face="normal" font="default" size="100%">Erlena Nor Asmira Abd Rahim</style></author><author><style face="normal" font="default" size="100%">Azlini Ismail</style></author><author><style face="normal" font="default" size="100%">Muhammad Nor Omar</style></author><author><style face="normal" font="default" size="100%">Umi Nadhirah Rahmat</style></author><author><style face="normal" font="default" size="100%">Wan Amir Nizam Wan Ahmad</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">GC-MS Analysis of Phytochemical Compounds in Syzygium polyanthum Leaves Extracted using Ultrasound-Assisted Method</style></title><secondary-title><style face="normal" font="default" size="100%">Pharmacognosy Journal</style></secondary-title></titles><keywords><keyword><style  face="normal" font="default" size="100%">Bioactive compound</style></keyword><keyword><style  face="normal" font="default" size="100%">GC-MS</style></keyword><keyword><style  face="normal" font="default" size="100%">Sonication</style></keyword><keyword><style  face="normal" font="default" size="100%">Syzygium polyanthum</style></keyword><keyword><style  face="normal" font="default" size="100%">Ultra-sound-assisted</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2018</style></year><pub-dates><date><style  face="normal" font="default" size="100%">December 2017</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">http://fulltxt.org/article/406</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">10</style></volume><pages><style face="normal" font="default" size="100%">110-119</style></pages><language><style face="normal" font="default" size="100%">eng</style></language><abstract><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Context:&lt;/strong&gt; &lt;em&gt;Syzygium polyanthum&lt;/em&gt; has been traditionally formulated by the folklore for the treatment of diseases including diarrhea, rheumatism, diabetes mellitus, hypercholesterolemia, hypertension, gastritis and hyperuricemia. Normally, its phytochemicals are always extracted using solvent, maceration and steam distillation methods, but the use of ultrasound-assisted extraction (UAE) method is still not well documented. &lt;strong&gt;Aims:&lt;/strong&gt; This study aims to extract the phytochemical compounds present in &lt;em&gt;S. polyanthum&lt;/em&gt; leaves using UAE and to identify them by Gas Chromatography-Mass Spectrometry (GC-MS) analysis. &lt;strong&gt;Methodology:&lt;/strong&gt; The leaves were consecutively soaked with n-hexane, ethyl acetate and methanol in a bath sonicator to derive n-hexane (HSP), ethyl acetate (EASP), and methanol (MSP) extracts of &lt;em&gt;S. polyanthum&lt;/em&gt; leaves and then the extracts were subjected to GC-MS analysis. Mass-spectral databases of peaks were compared with database from Wiley, NIST and FNSCC libraries for compound identification. &lt;strong&gt;Results:&lt;/strong&gt; GC-MS analyses of HSP, EASP and MSP showed the presence of 21, 27, and 31 peaks, respectively. The major compound for HSP (31.912%), EASP (27.042%), and MSP (22.386%) were unknown compounds which were detected at retention time between 61.980 and 62.29 min, thus requires further characterization. Squalene and phytol were among the other major compounds present in all three extracts. Several identified compounds in the extracts such as squalene, phytol, hentriacontane, palmitic acid, &amp;alpha;-pinene, nerolidol, linalool, &amp;alpha;-tocopherol and &amp;beta;-tocopherol were known bioactive compounds. &lt;strong&gt;Conclusion:&lt;/strong&gt; GC-MS analyses of n-hexane (HSP), ethyl acetate (EASP), and methanol (MSP) of &lt;em&gt;S. polyanthum&lt;/em&gt; leaves extracts have revealed the presence of some known bioactive compounds with therapeutic importance.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">1</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">110</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Erlena Nor Asmira Abd Rahim&lt;sup&gt;1&lt;/sup&gt;, Azlini Ismail&lt;sup&gt;2&lt;/sup&gt;*, Muhammad Nor Omar&lt;sup&gt;1&lt;/sup&gt;, Umi Nadhirah Rahmat&lt;sup&gt;3&lt;/sup&gt;, Wan Amir Nizam Wan Ahmad&lt;sup&gt;3&lt;/sup&gt;&lt;/strong&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;1&lt;/sup&gt;Department of Biotechnology, Kuliyyah of Science, Kuantan Campus, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200 Kuantan, Pahang, MALAYSIA.&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt; 2&lt;/sup&gt;Department of Fundamental Dental and Medical Sciences, Kuliyyah of Dentistry, Kuantan Campus, International Islamic University Malaysia, Jalan Sultan Ahmad Shah, Bandar Indera Mahkota, 25200 Kuantan, Pahang, MALAYSIA.&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;sup&gt;3&lt;/sup&gt;School of Health Sciences, Health Campus, UniversitiSains Malaysia, 16150 KubangKerian, Kelantan, MALAYSIA.&lt;/p&gt;</style></auth-address></record></records></xml>