<?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>2224-5421</journal-id>
<journal-title><![CDATA[Revista Cubana de Química]]></journal-title>
<abbrev-journal-title><![CDATA[Rev Cub Quim]]></abbrev-journal-title>
<issn>2224-5421</issn>
<publisher>
<publisher-name><![CDATA[Ediciones UO, Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-54212019000300414</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Primer reporte de antraquinonas en hojas de Picramniagracilistul]]></article-title>
<article-title xml:lang="en"><![CDATA[First report of anthraquinonesin leaves from picramniagracilistul]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Devia-Castillo]]></surname>
<given-names><![CDATA[Beatriz O]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yepez-Rendón]]></surname>
<given-names><![CDATA[Oscar Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rey-Montaño]]></surname>
<given-names><![CDATA[Mónica Alexandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Diego-Alejandro]]></surname>
<given-names><![CDATA[Silva Carrero]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Distrital Francisco José de Caldas  ]]></institution>
<addr-line><![CDATA[Bogotá DC ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Distrital Francisco José de Caldas Proyecto Curricular de Licenciatura en Química ]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>31</volume>
<numero>3</numero>
<fpage>414</fpage>
<lpage>426</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-54212019000300414&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-54212019000300414&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-54212019000300414&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Especies del género Picramnia han sido reconocidas por su uso etnobotánico en medicina tradicional y como fuentes promisorias de colorantes naturales. Picramnia gracilis(URU), con distribución en el neotrópico del continente americano, es utilizada por la comunidad indígena Ika de la Sierra Nevada de Santa Marta, Colombia, como fuente de colorantes naturales. Un extracto etanólico de hojas de la especie fue fraccionado con solventes de polaridad creciente y purificado mediante cromatografía en columna, para el aislamiento e identificación de las antraquinonas aloe-modina, emodina, crisofanol y nataloe-emodina, ya registradas en el género y que se reportan por primera vez para la especie. Los compuestos fueron identificados mediante comparación con muestras auténticas por HPLC-DAD y espectroscopía de RMN 1H y 13H. El análisis del extracto obtenido de las fibras teñidas con esta especie, indicó a las antraquinonas crisofanol (1) y nataloe-emodina (2) como los principales compuestos colorantes presentes, responsables de su propiedad tintórea.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Picramnia species have been known for their ethnobotanical use in traditional medicine and as promising sources of natural dyes. Picramniagracilis (URU) is a species used as bytheIka indigenous community of the Sierra Nevada de Santa Marta, Colombia as a source of natural colorants, distributed in the Neotropic of the American continent. Ethanolic extract of leaves of the species was fractionated with solvents of increasing polarity and purified by column chromatography for isolation and identification of the anthraquinones previously registered in genus: aloe-emodin, emodin, chrysophanol and nataloe-emodin, and are reported for the first time in the species. The compounds were identifiedby HPLC-DAD and NMR 1H and 13Cspectroscopy.The analysis of the extract obtained from the fibers dyed with this species, showed that the anthraquinoneschrysophanol (1) and nataloe-emodin (2) as the main coloring compounds present, responsible for their dyed property.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Picramniagracilis]]></kwd>
<kwd lng="es"><![CDATA[antraquinonas]]></kwd>
<kwd lng="es"><![CDATA[nataloe-emodina]]></kwd>
<kwd lng="es"><![CDATA[colorantes naturales]]></kwd>
<kwd lng="es"><![CDATA[propiedad tintórea]]></kwd>
<kwd lng="en"><![CDATA[Picramniagracilis]]></kwd>
<kwd lng="en"><![CDATA[anthraquinones]]></kwd>
<kwd lng="en"><![CDATA[nataloe-emodin]]></kwd>
<kwd lng="en"><![CDATA[natural dyes]]></kwd>
<kwd lng="en"><![CDATA[dyed property]]></kwd>
</kwd-group>
</article-meta>
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