<?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>0121-7488</journal-id>
<journal-title><![CDATA[Ciencia en Desarrollo]]></journal-title>
<abbrev-journal-title><![CDATA[Ciencia en Desarrollo]]></abbrev-journal-title>
<issn>0121-7488</issn>
<publisher>
<publisher-name><![CDATA[Universidad Pedagógica y Tecnológica de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-74882024000100171</article-id>
<article-id pub-id-type="doi">10.19053/01217488.v15.n1.2024.16871</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Sulfonated-cellulose as catalysts for the efficient conversion of levulinic acid into ethyl levulinate]]></article-title>
<article-title xml:lang="es"><![CDATA[Celulosa sulfonada como catalizador para la conversion eficiente de acido levulínico en levulinato de etilo]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reynoso]]></surname>
<given-names><![CDATA[Rodrigo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pasquale]]></surname>
<given-names><![CDATA[Gustavo A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ruiz]]></surname>
<given-names><![CDATA[Diego M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Páez]]></surname>
<given-names><![CDATA[Luis A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martinez]]></surname>
<given-names><![CDATA[Jose J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romanelli]]></surname>
<given-names><![CDATA[Gustavo P.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
<xref ref-type="aff" rid="Aaf"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Nacional de La Plata Facultad de Ciencias Agrarias y Forestales ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Argentina</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Pedagógica y Tecnológica de Colombia Facultad de Ciencias ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Univesidad Nacional de La Plata  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2024</year>
</pub-date>
<volume>15</volume>
<numero>1</numero>
<fpage>171</fpage>
<lpage>177</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-74882024000100171&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-74882024000100171&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-74882024000100171&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract This study highlights the use of cellulose sulfuric acid as a heterogeneous, reusable catalyst derived from biomass (Cortaderia Selloana) for synthesizing ethyl levulinate through catalytic esterification of levulinic acid with ethanol. The effects of temperature, catalyst loading, and the molar ratio of ethanol: levulinic acid on the yield of ethyl levulinate were studied to optimize production. A yield of 95 % was achieved at 16 hours, 80 °C, and a molar ratio of 3:1 of ethanol: levulinic acid. These results demonstrate that obtaining high yields of ethyl levulinate is feasible using a biomass-derived catalyst.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Este estudio destaca el uso de ácido sulfúrico de celulosa como catalizador heterogéneo y reutilizable derivado de biomasa (Cortaderia Selloana) para sintetizar levulinato de etilo mediante esterificación catalítica de ácido levulínico con etanol. Se estudiaron los efectos de la temperatura, la carga del catalizador y la relación molar de etanol:ácido levulínico sobre el rendimiento de levulinato de etilo para optimizar la production. Se logro un rendimiento del 95 % a las 16 horas, 80 °C y una relación molar de 3:1 de etanol: ácido levulínico. Estos resultados demuestran que es factible obtener altos rendimientos de levulinato de etilo utilizando un catalizador derivado de biomasa.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[cellulose sulfuric acid]]></kwd>
<kwd lng="en"><![CDATA[ethyl levulinate]]></kwd>
<kwd lng="en"><![CDATA[levulinic acid esterification]]></kwd>
<kwd lng="es"><![CDATA[ácido sulfúrico de celulosa]]></kwd>
<kwd lng="es"><![CDATA[levulinato de etilo]]></kwd>
<kwd lng="es"><![CDATA[Esterificación del ácido levulínico]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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