<?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>2007-9028</journal-id>
<journal-title><![CDATA[Ecosistemas y recursos agropecuarios]]></journal-title>
<abbrev-journal-title><![CDATA[Ecosistemas y recur. agropecuarios]]></abbrev-journal-title>
<issn>2007-9028</issn>
<publisher>
<publisher-name><![CDATA[Universidad Juárez Autónoma de Tabasco, Dirección de Investigación y Posgrado]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-90282023000300025</article-id>
<article-id pub-id-type="doi">10.19136/era.a10n3.3602</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Predicción de metano de dos frutos arbóreos por cromatografía de gases y gas In vitro]]></article-title>
<article-title xml:lang="en"><![CDATA[Methane prediction of two tree fruits by In vitro gas and gas chromatography]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Díaz]]></surname>
<given-names><![CDATA[Roselia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pinto-Ruiz]]></surname>
<given-names><![CDATA[René]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Miranda-Romero]]></surname>
<given-names><![CDATA[Luis Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[La O-Arias]]></surname>
<given-names><![CDATA[Manuel Alejandro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Sánchez]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Raj-Aryal]]></surname>
<given-names><![CDATA[Deb]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Chiapas Facultad de Ciencias Agronómicas ]]></institution>
<addr-line><![CDATA[Villaflores Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Autónoma Chapingo Posgrado en Producción Animal ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Colegio de Postgraduados Programa de Ganadería ]]></institution>
<addr-line><![CDATA[Montecillo Texcoco]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2023</year>
</pub-date>
<volume>10</volume>
<numero>3</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-90282023000300025&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-90282023000300025&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-90282023000300025&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El objetivo fue evaluar modelos predictivos de la producción metano de los frutos Leucaena collinsii y Guazuma ulmifolia medido a través de la técnica de producción de gas in vitro (TPG) y cromatografía de gases. A los frutos se realizó un análisis químico, parámetros de fermentación in vitro, y se estimó metano por cromatografía de gases y por la TPG. Se realizó un análisis de varianza considerando los efectos fijos de la técnica de medición y el tipo de fruto. Se hizo un análisis de correlación y regresión para conocer las ecuaciones y los coeficientes de determinación entre CH4 por cromatografía de gases y estimación de CH4 a partir de la TPG. Se encontró una tendencia positiva entre la estimación de metano por cromatografía de gases y por la TPG, por lo que, la TPG es promisoria para la determinación de metano de frutos de Leucaena collinsii y Guazuma ulmifolia.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of the present work was evaluate predictive models for methane production fruits Leucaena collinsii and Guazuma ulmifolia measured through the in vitro gas production technique (TPG) and gas chromatography. The fruits were subjected to a chemical analysis, in vitro fermentation using the gas production technique GPT, and methane was measured using gas chromatography and the GPT. A correlation and regression analysis was conducted to determine the equations and the determination coefficients (R2) between CH4 using gas chromatography and CH4 estimation from the TPG. A positive trend was found between the estimation of methane by gas chromatography and by the TGP It is concluded that the in vitro gas technique is promising for the determination of methane from Leucaena collinsii and Guazuma ulmifolia fruits compared to the conventional reference technique, gas chromatography.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Correlación]]></kwd>
<kwd lng="es"><![CDATA[regresión]]></kwd>
<kwd lng="es"><![CDATA[composición química]]></kwd>
<kwd lng="es"><![CDATA[fermentación]]></kwd>
<kwd lng="es"><![CDATA[taninos]]></kwd>
<kwd lng="en"><![CDATA[Correlation analysis]]></kwd>
<kwd lng="en"><![CDATA[regression analysis]]></kwd>
<kwd lng="en"><![CDATA[chemical composition]]></kwd>
<kwd lng="en"><![CDATA[rumen fermentation]]></kwd>
<kwd lng="en"><![CDATA[tannins]]></kwd>
</kwd-group>
</article-meta>
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