<?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%">Wilawan Promprom</style></author><author><style face="normal" font="default" size="100%">Wannachai Chatan</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">GC-MS Analysis and Antioxidant Activity of Bauhinia nakhonphanomensis Leaf Ethanolic Extract</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%">antioxidant activity</style></keyword><keyword><style  face="normal" font="default" size="100%">Bauhinia Nakhonphanomensis</style></keyword><keyword><style  face="normal" font="default" size="100%">GC-MS</style></keyword><keyword><style  face="normal" font="default" size="100%">total flavonoid content</style></keyword><keyword><style  face="normal" font="default" size="100%">total phenolic content</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2017</style></year><pub-dates><date><style  face="normal" font="default" size="100%">July 2017</style></date></pub-dates></dates><urls><web-urls><url><style face="normal" font="default" size="100%">/files/pj-9-5/10.5530pj.2017.5.105/index.html</style></url></web-urls></urls><volume><style face="normal" font="default" size="100%">9</style></volume><pages><style face="normal" font="default" size="100%">663-667</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;Bauhinia nakhonphanomensis&lt;/em&gt; Chatan. A new species that is endemic to Thailand. &lt;strong&gt;Aims:&lt;/strong&gt; Leaves of &lt;em&gt;B. nakhonphanomensis&lt;/em&gt; were extracted and the extract was used in gas chromatography-mass spectrometry (GC-MS) analysis to evaluate the total phenols, total flavonoids and antioxidant activity. &lt;strong&gt;Methods:&lt;/strong&gt; The extract of &lt;em&gt;B. nakhonphanomensis&lt;/em&gt; was analyzed by GC-MS. Quantitative analysis for total phenols was done by the Folin-Ciocatteu method and for total flavonoids by the aluminium chloride method. The antioxidant activity of the ethanolic extract was evaluated by the DPPH method. &lt;strong&gt;Results:&lt;/strong&gt; GC-MS analysis revealed the presence of 19 phytochemical constituents. These compounds were identified by comparing their retention times and peak areas with those from the literature and by interpretation of the mass spectra. The major chemical constituents were inositol (48.55 %), alpha-tocopherol (12.21 %) and phenol (6.61 %). Total phenolic content was 48.69&amp;plusmn;0.56 mg/100 of Gallic acid equivalent (GE). The total flavonoid contentwas 10539&amp;plusmn; 6.14 mg/100 of quercetin equivalent (QE). Antioxidant activity was 17.07&amp;plusmn;0.24 &amp;mu;g/100 of ascorbic acid equivalent antioxidant capacity (AEAC).&lt;strong&gt;Conclusion:&lt;/strong&gt; These findings are the first report and suggest that the rich phytochemical content of &lt;em&gt;B. nakhonphanomensis&lt;/em&gt; has good antioxidant activity.&lt;/p&gt;</style></abstract><issue><style face="normal" font="default" size="100%">5</style></issue><work-type><style face="normal" font="default" size="100%">Original Article</style></work-type><section><style face="normal" font="default" size="100%">663</style></section><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Wilawan Promprom&lt;sup&gt;*&lt;/sup&gt;and Wannachai Chatan &lt;/strong&gt;&lt;/p&gt;
&lt;p style=&quot;text-align: justify;&quot;&gt;Department of Biology, Faculty of Science, Mahasarakham University, THAILAND.&lt;/p&gt;</style></auth-address></record></records></xml>