<?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>0121-4004</journal-id>
<journal-title><![CDATA[Vitae]]></journal-title>
<abbrev-journal-title><![CDATA[Vitae]]></abbrev-journal-title>
<issn>0121-4004</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Química Farmacéutica, Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-40042007000200005</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[PRODUCCIÓN DE COMPLEJOS ENZIMÁTICOS CELULOLÍTICOS MEDIANTE EL CULTIVO EN FASE SÓLIDA DE Trichoderma sp. SOBRE LOS RACIMOS VACÍOS DE PALMA DE ACEITE COMO SUSTRATO]]></article-title>
<article-title xml:lang="en"><![CDATA[PRODUCTION OF ENZYMATIC COMPLEX IN SOLID STATE FERMENTATION BY Trichoderma sp. USING PALM OIL EMPTY FRUIT BUNCH (EFB) AS SUBSTRATE]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[RODRÍGUEZ G.]]></surname>
<given-names><![CDATA[Ibeth]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[PIÑEROS C.]]></surname>
<given-names><![CDATA[Yineth]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,Universidad Jorge Tadeo Lozano Programa Ingeniería de Alimentos Grupo de Aprovechamiento de Recursos Agroalimentarios]]></institution>
<addr-line><![CDATA[Bogotá ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>07</month>
<year>2007</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>07</month>
<year>2007</year>
</pub-date>
<volume>14</volume>
<numero>2</numero>
<fpage>35</fpage>
<lpage>42</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-40042007000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-40042007000200005&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-40042007000200005&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[La explotación de palma de aceite en Colombia, quinto productor mundial, genera residuos lignocelulósicos, como los racimos vacíos ("raquis" o "tusas"), que resultan después de retirar los frutos de la palma de aceite, los cuales, teniendo en cuenta sus características, pueden ser usados como sustrato para la producción de enzimas celulasas. En este trabajo se evalúa la producción de celulasas mediante el cultivo de Trichoderma viride sobre los racimos vacíos. Los residuos se someten a pretratamientos químicos (HNO3 0,5% y 1%) y biológicos (precultivo con Pleurotus ostreatus durante 10 y 20 días), con el fin de deslignificarlos y favorecer la producción de celulasas. La evaluación de las actividades celulasa total (FPasa) y endoglucanasa (CMCasa), se realiza a los ocho días de cultivo en fermentación en fase sólida utilizando los residuos pretratados como sustrato, suplementando con dos fuentes de nitrógeno inorgánicas (NH4H2PO4 y NaNO3). Las mayores actividades celulolíticas se encuentran en cultivos realizados con pretratamiento biológico (precultivo de Pleurotus ostreatus) y NaNO3 como fuente de nitrógeno, con valores de 0,374 U/mL de FPasa y 0,776 U/mL de CMCasa; una unidad (U) de actividad es la cantidad en &micro;moles de azúcares reductores (glucosa) producidos por minuto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[The oil palm industry in Colombia, the fifth world manufacter, generates lignocelulosic waste like the empty fruit bunch (EFB), which remains after removing the fruit of oil palm. Keeping in mind this characteristic, it can be used as substrate for cellulases production. In this study we evaluate the productivity of cellulases through native crop of Trichoderma viride T12 using EFB. The wastes are subject to chemical (HNO3 0,5% y 1%) and biological treatments (previous cultivate with Pleurotus ostreatus during 10 and 20 days), to get its deslignification and improving the production of cellulases. The evaluation of the activities of total cellulase (FPase) and endoglucanase (CMCase) was made after 8 days of cultivate by fermentation in solid state, using pretreated wastes as substrate. It was supplemented with two inorganic nitrogen sources (NH4H2PO4 y NaNO3). The major celulolitic activities were found in wastes treated with precultive of Pleurotus ostreatus and NaNO3 as nitrogen source, with values of 0,374 U/mL of FPase and 0,776 U/mL of CMCase. All activities were expressed in micromole of glucose units (U) of substrate hydrolyzed in 1 min.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Trichoderma]]></kwd>
<kwd lng="es"><![CDATA[lignina]]></kwd>
<kwd lng="es"><![CDATA[celulosa]]></kwd>
<kwd lng="es"><![CDATA[celulasas]]></kwd>
<kwd lng="es"><![CDATA[residuos de palma de aceite]]></kwd>
<kwd lng="en"><![CDATA[Trichoderma sp.]]></kwd>
<kwd lng="en"><![CDATA[lignine]]></kwd>
<kwd lng="en"><![CDATA[cellulose]]></kwd>
<kwd lng="en"><![CDATA[cellulases]]></kwd>
<kwd lng="en"><![CDATA[palm oil wastes]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[  ]]></body><back>
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