<?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>0012-7353</journal-id>
<journal-title><![CDATA[DYNA]]></journal-title>
<abbrev-journal-title><![CDATA[Dyna rev.fac.nac.minas]]></abbrev-journal-title>
<issn>0012-7353</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional de Colombia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0012-73532021000300143</article-id>
<article-id pub-id-type="doi">10.15446/dyna.v88n218.90468</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Biodegradability of a bioplastic film from tamarind xyloglucan in composting bioreactors]]></article-title>
<article-title xml:lang="es"><![CDATA[Biodegradabilidad de una película bioplástica de xiloglucano de tamarindo en biorreactores de compostaje]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Álvarez-Betancourt]]></surname>
<given-names><![CDATA[Paola Andrea]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Luna-Pabello]]></surname>
<given-names><![CDATA[Víctor Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ussa-Garzón]]></surname>
<given-names><![CDATA[Jaime Eddy]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maciel-Cerda]]></surname>
<given-names><![CDATA[Alfredo]]></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 ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Nacional Autónoma de México  ]]></institution>
<addr-line><![CDATA[México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2021</year>
</pub-date>
<volume>88</volume>
<numero>218</numero>
<fpage>143</fpage>
<lpage>151</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0012-73532021000300143&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0012-73532021000300143&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0012-73532021000300143&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Plastic is used excessively due to its excellent properties and its low cost. This has led to the ubiquitous accumulation of waste as it takes a very long time to biodegrade. Until now, several research projects have developed different biodegradable plastics, and the tests to validate them are still being undertaken. In this research, a biodegradability test was performed on a bioplastic synthesized from tamarind xyloglucan and ethyl acrylate (b-XgT), designed to be a substitute for polystyrene. A sample of the b-XgT was composted in laboratory conditions and CO2 release measurements were made. The results showed a biodegradation time of 18 days with a loss of mass of 40.3% and a final pH of 7.1. The b-XgT was found to be biodegradable of the compostable type through the anaerobic route, which promotes the digestion of compounds such as xylose that contribute to the degradation of the whole polymer.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen El uso excesivo del plástico, debido a sus excelentes propiedades y su bajo costo, ha llevado a la acumulación ubicua de residuos, ya que se biodegradan a muy largo plazo. Hasta ahora, varias investigaciones han desarrollado diferentes plásticos biodegradables y se siguen haciendo las pruebas para validarlos. En esta investigación, la prueba de biodegradabilidad se realizó sobre un bioplástico sintetizado a partir de xiloglucano de tamarindo y acrilato de etilo (b-XgT), diseñado como sustituto del poliestireno. Se sometió a compostaje una muestra del b-XgT en condiciones de laboratorio y se midió la liberación de CO2. Los resultados mostraron un tiempo de biodegradación de 18 días con una pérdida de masa de 40,3% y un pH final de 7,1. Se comprobó que el b-XgT es degradable de tipo compostable por vía anaeróbica, lo que favorece la digestión de compuestos como la xilosa que contribuyen a la degradación de todo el polímero.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[xyloglucan and ethyl acrylate bioplastic]]></kwd>
<kwd lng="en"><![CDATA[biodegradable polymer]]></kwd>
<kwd lng="en"><![CDATA[biodegradability evaluation]]></kwd>
<kwd lng="en"><![CDATA[composting bioreactor]]></kwd>
<kwd lng="en"><![CDATA[biopolymer]]></kwd>
<kwd lng="es"><![CDATA[bioplástico de xiloglucano y acrilato de etilo]]></kwd>
<kwd lng="es"><![CDATA[polímero biodegradable]]></kwd>
<kwd lng="es"><![CDATA[evaluación de la biodegradabilidad]]></kwd>
<kwd lng="es"><![CDATA[biorreactor de compostaje]]></kwd>
<kwd lng="es"><![CDATA[biopolímero]]></kwd>
</kwd-group>
</article-meta>
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