<?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%">Manish Kumar,</style></author><author><style face="normal" font="default" size="100%">Satyendra K. Prasad,</style></author><author><style face="normal" font="default" size="100%">Damiki Laloo,</style></author><author><style face="normal" font="default" size="100%">Apurva Joshi,</style></author><author><style face="normal" font="default" size="100%">Siva Hemalatha</style></author></authors></contributors><titles><title><style face="normal" font="default" size="100%">Pharmacognostical and phytochemical standardization of Houttuynia cordata Thunb.: A potent medicinal herb of North–Eastern India and China</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%">Houttuynia cordata</style></keyword><keyword><style  face="normal" font="default" size="100%">HPTLC</style></keyword><keyword><style  face="normal" font="default" size="100%">Pharmacognosy</style></keyword><keyword><style  face="normal" font="default" size="100%">Quercetin</style></keyword></keywords><dates><year><style  face="normal" font="default" size="100%">2014</style></year><pub-dates><date><style  face="normal" font="default" size="100%">18th Feb,2014</style></date></pub-dates></dates><volume><style face="normal" font="default" size="100%">6</style></volume><pages><style face="normal" font="default" size="100%">34-42</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;Aim:&lt;/strong&gt;&lt;em&gt;Houttuynia cordata&lt;/em&gt; Thunb. (Saururaceae) is one of the perennial herb indigenous to North-East India and China. Despite the popular utilization of this herb as medicine, still no study has been reported so far regarding the pharmacognostical standardization. Thus, the aim of the present study was to scientifically establish a standard monograph on the basis of pharmacognostical and phytochemical aspects. &lt;strong&gt;Methods:&lt;/strong&gt; The quality control standardization of&lt;em&gt; H. cordata&lt;/em&gt; was done as per the methods described in the World Health Organization guidelines (2002). &lt;strong&gt;Results:&lt;/strong&gt; The diagnostic characters of the &lt;em&gt;H. Cordata&lt;/em&gt; leaf and rhizome portion were evaluated based on the macroscopical and microscopical characters. Determination of various physicochemical parameters such as water soluble ash (1.12% w/w), acid insoluble ash (4.02% w/w), sulphated ash (3.15% w/w), alcohol soluble extractive (12.8% w/w), water soluble extractive (14.9% w/w), loss on drying (3.42% w/w) and crude fibres content (13.10% w/w) was ascertained. Heavy metal, microbial load, fluorescence drug analysis, and preliminary phytochemical screening of different fractions were also carried out. Total phenols (45.74 mg/g tannic acid equivalent, TAE), tannins (33.29mg/g TAE), flavonoids (104.55 mg/g rutin equivalent, RE), and flavonols (17.16mg/g RE) were quantified from the ethanolic extract of the whole plant. Quantification of quercetin in the ethanolic extract was assessed by HPTLC analysis and was found to contain 4.39%, w/w. &lt;strong&gt;Conclusion:&lt;/strong&gt; The obtained qualitative and quantitative standards will provide referential information for correct identification and standardization of this medicinal plant.&lt;/p&gt;&lt;p&gt;&lt;strong&gt;Key Words: &lt;/strong&gt;&lt;em&gt;Houttuynia cordata&lt;/em&gt;, pharmacognosy, quercetin, HPTL.&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><auth-address><style face="normal" font="default" size="100%">&lt;p style=&quot;text-align: justify;&quot;&gt;&lt;strong&gt;Manish Kumar, Satyendra K. Prasad, Damiki Laloo, Apurva Joshi and Siva Hemalatha&lt;sup&gt;*&lt;/sup&gt;&lt;/strong&gt;&lt;/p&gt;&lt;p style=&quot;text-align: justify;&quot;&gt;Department of Pharmaceutics, Indian Institute of Technology, Banaras Hindu University, Varanasi&amp;ndash;221005, India.&lt;/p&gt;</style></auth-address></record></records></xml>