<?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>0120-100X</journal-id>
<journal-title><![CDATA[Revista ION]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. ion]]></abbrev-journal-title>
<issn>0120-100X</issn>
<publisher>
<publisher-name><![CDATA[Universidad Industrial de Santander]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0120-100X2019000100075</article-id>
<article-id pub-id-type="doi">10.18273/revion.v32n1-2019007</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Saccharification of Orange Bagasse Pre-treated with Calcium Hydroxide using an enzymatic blend Diluted Hydrochloric Acid]]></article-title>
<article-title xml:lang="es"><![CDATA[Sacarificación de bagazo de naranja pretratado con hidroxido de calcio usando un cóctel enzimático y acido diluido]]></article-title>
<article-title xml:lang="pt"><![CDATA[Sacarificação de bagaço de laranja pré-tratado com hidróxido de cálcio usando um coquetel enzimático e ácido clorídrico diluído]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pires-Nogueira]]></surname>
<given-names><![CDATA[Danielle]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira-Rosa]]></surname>
<given-names><![CDATA[Paula Rubia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Seolatto]]></surname>
<given-names><![CDATA[Araceli Aparecida]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Galeano-Suarez]]></surname>
<given-names><![CDATA[Carlos Alberto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira-Freitas]]></surname>
<given-names><![CDATA[Fernanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Federal University of Goias Department of Chemical Engineering ]]></institution>
<addr-line><![CDATA[Goiás Goiânia]]></addr-line>
<country>Brazil</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Federal University of São Carlos Department of Chemical Engineering ]]></institution>
<addr-line><![CDATA[São Paulo São Carlos]]></addr-line>
<country>Brazil</country>
</aff>
<pub-date pub-type="pub">
<day>03</day>
<month>06</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>03</day>
<month>06</month>
<year>2019</year>
</pub-date>
<volume>32</volume>
<numero>1</numero>
<fpage>75</fpage>
<lpage>85</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0120-100X2019000100075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0120-100X2019000100075&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0120-100X2019000100075&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Enzymatic and dilute acid processes were applied to study the orange bagasse hydrolysis. The moisture, ashes, lignin, cellulose, and hemicellulose contents, of the orange peels, were quantified. The xylanase and cellulase enzymes activities were quantified, as well as their optimum pH and temperatures. The pre dried orange peel biomass was pre-treated with calcium hydroxide, at preestablished conditions. The hydrolysis followed a central composite factorial 2³ design. The cellulase activity was 28.05x10-6 FPU (Filter Paper Units)/m3, the optimum pH was 4.8 and the temperature was 60°C. The results for xylanase were an activity of 199.58x10-3 U/Kg, pH 5.2, and temperature 50°C. The acid hydrolysis TRS (total reducing sugars) values varied from (9.328±0.68 mg)*10-3 TRS per Kg of biomass to (30.15±0.31)*10-3 mg TRS per Kg biomass, the most significant factor was the temperature and the least the time. The enzymatic hydrolysis TRS values varied from (77.33±3.82)*10-3 mg TRS per Kg biomass to (99.66±0.62)*10-3 mg TRS per Kg biomass, the most significant factor was the concentration of cellulase and the least the xylanase concentration.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La hidrólisis del bagazo de naranja fue realizada por medio de un proceso enzimático con celulasas y un processo químico con ácido diluido. Las cantidades de humedad, cenizas, lignina, celulosa y hemicelulosa fueron cuantificadas. La actividad de las enzimas fue determinada a temperatura y pH optimo. La biomasa fue pretratada con hidróxido de cálcio. Los experimentos de hidrólisis fueron realizados utilizando un diseño fatorial 2³ del tipo compuesto central. La actividad de la celulasa fue de 28,05&#8729;10-6 FPU (Filter Paper Units)/m3, con un pH optimo de 4,8 y una temperatura de 60°C. Asimismo los resultados para la actividad de xilanasas obtenidos fueron de 199,58&#8729;10-3 U/ Kg, a pH 5,2, y temperatura 50°C. Los valores de azúcares reductores totales ART de la hidrólisis ácida variaron de (9,328 ± 0,68)*103 Kg ART /Kg de biomasa a (30,15±0,31)&#8729;10-3 Kg ART/ Kg de biomasa, presentando como factor mas significativo la temperatura y como menos significativo, el tiempo. Para el caso de la hidrólisis enzimática los valores de ART variaron de (77,33±3,82)&#8729;10-3 Kg ART/ Kg de biomasa a (99,66±0,62)&#8729;10-3 kg ART / Kg de biomasa, siendo el fator más significativo la concentración de celulasa y el menos significativo la concentración de xilanasa.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Resumo A hidrólise do bagaço de laranja foi estudada por processos enzimáticos e ácido diluído. Os teores de umidade, cinzas, lignina, celulose e hemicelulose foram quantificados. A atividade das enzimas foi quantificada, bem como a temperatura e o pH ótimos. A biomassa foi pré-tratada com hidróxido de cálcio. As hidrólises seguiram um planejamento fatorial 2³ do tipo composto central. A atividade da celulase foi 28,05&#8729;10-6 FPU (Filter Paper Units)/m3, o pH ótimo foi 4,8 e a temperatura foi 60°C. Os resultados da xilanase foram atividade de 199,58&#8729;10-3 U/Kg, pH 5,2, e temperatura 50°C. Os valores de açucares redutores totais (ART) da hidrólise ácida variaram de (9,328 ± 0,68)&#8729;10-3 Kg ART por Kg de biomassa a (30,15±0,31)&#8729;10-3 Kg ART por Kg biomassa, o fator mais significativo foi a temperatura e o menos significativo, o tempo. Os valores de ART da hidrólise enzimática variaram de (77,33±3,82)&#8729;10-3 Kg ART por Kg biomassa a (99,66±0,62)&#8729;10-3 kg ART por Kg biomassa, o fator mais significativo foi a concentração de celulase e o menos significativo a concentração de xilanase.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Central Composite Design]]></kwd>
<kwd lng="en"><![CDATA[Biomass]]></kwd>
<kwd lng="en"><![CDATA[Enzymes.]]></kwd>
<kwd lng="es"><![CDATA[Diseño Compuesto Central]]></kwd>
<kwd lng="es"><![CDATA[Biomasa]]></kwd>
<kwd lng="es"><![CDATA[Enzimas.]]></kwd>
<kwd lng="pt"><![CDATA[Planejamento Composto Central]]></kwd>
<kwd lng="pt"><![CDATA[Biomassa]]></kwd>
<kwd lng="pt"><![CDATA[Enzimas.]]></kwd>
</kwd-group>
</article-meta>
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