<?xml version="1.0" encoding="ISO-8859-1"?><article xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
<front>
<journal-meta>
<journal-id>0120-2804</journal-id>
<journal-title><![CDATA[Revista Colombiana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev.Colomb.Quim.]]></abbrev-journal-title>
<issn>0120-2804</issn>
<publisher>
<publisher-name><![CDATA[Departamento de Química,  Universidad Nacional de Colombia.]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-28042018000100010</article-id>
<article-id pub-id-type="doi">10.15446/rev.colomb.quim.v47n1.65375</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Método preparativo para la obtención de ácido ursólico a partir de Clinopodium revolutum]]></article-title>
<article-title xml:lang="en"><![CDATA[Preparative method to obtain ursolic acid from Clinopodium revolutum]]></article-title>
<article-title xml:lang="pt"><![CDATA[Método preparativo para a obtenção do ácido ursólico a partir de Clinopodium revolutum]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ludefla Huaman]]></surname>
<given-names><![CDATA[Michael Azael]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Pontificia Universidad Católica del Perú Facultad de Ciencias e Ingeniería Escuela Profesional de Química]]></institution>
<addr-line><![CDATA[Lima ]]></addr-line>
<country>Peru</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2018</year>
</pub-date>
<volume>47</volume>
<numero>1</numero>
<fpage>10</fpage>
<lpage>15</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-28042018000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-28042018000100010&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-28042018000100010&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen En este trabajo se propuso un método para obtener ácido ursólico (AU) de manera fácil, rápida y económica teniendo como materia prima la planta medicinal Clinopodium revolutum endémica del Perú, conocida y comercializada con el nombre de flor de arena o té indio. La técnica de recristalización selectiva que se empleó resultó ser eficiente debido a que se obtuvieron cristales de AU sin la necesidad de métodos cromatográficos de purificación ni el uso de solventes tóxicos. La pureza determinada por HPLC es mayor a 95%. Así, la flor de arena se convierte en una importante biofuente de este compuesto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract A method to obtain ursolic acid (UA) in an easy, fast, and economical way was proposed, having as raw material the medicinal plant Clinopodium revolutum from Peru. This plant is known and marketed as flor de arena or té indio. The selective recrystallization technique used was efficient since UA crystals were obtained without the need for chromatographic purification methods or the use of toxic solvents. The purity determined by HPLC is greater than 95%. Thus, the flor de arena becomes an important biosource of this compound.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo Este trabalho apresenta um método para a obtenção de ácido ursólico (AU) de forma fácil, rápida e barata tendo como matéria prima a planta medicinal Clinopodium revolutum endêmica do Perú, conhecida e comercializada pelo nome de flor de arena ou té indio. A técnica seletiva de recristalização resultou ser eficiente, devido os cristais da AU foram obtidos sem a necessidade de métodos cromatográficos de purificação nem a utilização de solventes tóxicos. A pureza determinada pela HPLC é superior a 95%. Assim, a flor de arena torna-se uma biofonte importante deste composto.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Lamiaceae]]></kwd>
<kwd lng="es"><![CDATA[triterpeno]]></kwd>
<kwd lng="es"><![CDATA[recristalización]]></kwd>
<kwd lng="es"><![CDATA[purificación]]></kwd>
<kwd lng="es"><![CDATA[Perú]]></kwd>
<kwd lng="en"><![CDATA[Lamiaceae]]></kwd>
<kwd lng="en"><![CDATA[triterpene]]></kwd>
<kwd lng="en"><![CDATA[recrystallization]]></kwd>
<kwd lng="en"><![CDATA[purification]]></kwd>
<kwd lng="en"><![CDATA[Peru]]></kwd>
<kwd lng="pt"><![CDATA[Lamiaceae]]></kwd>
<kwd lng="pt"><![CDATA[triterpeno]]></kwd>
<kwd lng="pt"><![CDATA[recristalização]]></kwd>
<kwd lng="pt"><![CDATA[purificação]]></kwd>
<kwd lng="pt"><![CDATA[Perú]]></kwd>
</kwd-group>
</article-meta>
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