<?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>2223-4861</journal-id>
<journal-title><![CDATA[Centro Azúcar]]></journal-title>
<abbrev-journal-title><![CDATA[cen. az.]]></abbrev-journal-title>
<issn>2223-4861</issn>
<publisher>
<publisher-name><![CDATA[Editorial Feijóo]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2223-48612020000200086</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[DISEÑO DEL PROCESO PARA LA OBTENCIÓN DE ÁCIDO CÍTRICO A PARTIR DEL BAGAZO DE CAÑA DISPONIBLE EN PASTAZA, ECUADOR]]></article-title>
<article-title xml:lang="en"><![CDATA[PROCESS DESIGN TO OBTAINING CITRIC ACID FROM THE SUGARCANE BAGASSE AVAILABLE IN PASTAZA, ECUADOR]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tuquerres Curipallo]]></surname>
<given-names><![CDATA[Henrry]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cerda Mejía]]></surname>
<given-names><![CDATA[Galo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tenemasa]]></surname>
<given-names><![CDATA[Viviana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Diéguez Santana]]></surname>
<given-names><![CDATA[Karel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Carrera Sánchez]]></surname>
<given-names><![CDATA[Karina]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Martínez]]></surname>
<given-names><![CDATA[Amaury]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Estatal Amazónica  ]]></institution>
<addr-line><![CDATA[Pastaza ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2020</year>
</pub-date>
<volume>47</volume>
<numero>2</numero>
<fpage>86</fpage>
<lpage>96</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2223-48612020000200086&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2223-48612020000200086&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2223-48612020000200086&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La industria ecuatoriana consume grandes cantidades de ácido cítrico. Este producto es utilizado como conservante y antioxidante natural. Dentro de las materias primas que se pueden utilizar está el bagazo y en la provincia de Pastaza existe disponibilidad de este residuo que se obtiene de la fabricación artesanal de panela y no es aprovechado.  Objetivo:  Diseñar el proceso tecnológico para la obtención de ácido cítrico a partir del bagazo de caña disponible en la provincia de Pastaza.  Materiales y Métodos:  Se utilizó un procedimiento para el diseño del proceso y la herramienta informática SuperPro Designer para simular cuatro cantidades de consumo de bagazo para el proceso tecnológico seleccionado, que comprende el acondicionamiento, pretratamiento, fermentación sólida, separación y purificación.  Resultados y Discusión:  Considerando las posibles capacidades de la planta con respecto al consumo de materia prima se obtuvo que si se consumen 68,35 t/d el Valor Actual Neto es positivo. Por lo tanto, a partir de esa capacidad se pueden generar ganancias. Los residuos generados en la producción de ácido cítrico son yeso, biomasa, lignina, hidrolasas y emisiones de CO2. Estos se destinan para la producción de nuevos productos o energías para reducir el impacto ambiental.  Conclusiones: Se diseñó el proceso tecnológico para la obtención de ácido cítrico en la provincia de Pastaza, del cual se realizó el análisis económico de las capacidades de 60, 72, 84 y 96 toneladas de bagazo teniendo como resultado un VAN de -3 021 000, 1 217 000, 5 827 000 y 10 576 000 USD respectivamente, lo que permitió encontrar una ecuación que predijo el comportamiento del VAN.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  The Ecuadorian industry consumes large amounts of citric acid. This product is used as a preservative and natural antioxidant. Among the raw materials that can be used is bagasse. There is availability of this residue in Pastaza province that is obtained from the panela handmade manufacture is not used.  Objective:  Design a technological process for obtaining citric acid from sugar cane bagasse available in Pastaza province.  Materials and Methods: A procedure was used for process design and SuperPro Designer software tool to simulate four quantities of bagasse consumption for the selected technological process that includes conditioning, pretreatment, solid fermentation, separation and purification.  Results and Discussion:  Considering the possible plant capacities with respect to the raw material consumption, it was obtained that if 68.35 t/day are consumed, the Net Present Value is positive. Therefore, from that capacity profits can be generated. The wastes generated in citric acid production are gypsum, biomass, lignin, hydrolases and CO2 emissions. These are intended for new products or energy production in order to reduce the environmental impact.  Conclusions:  The economic analysis for capacities of 60, 72, 84 and 96 tons of bagasse carried out for citric acid technological process designed in Pastaza province, resulting in a NPV of -3 021 000, 1 217 000, 5 827 000 and 10 576 000 USD respectively, which allowed to find an equation that predicted NPV behavior.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[ácido cítrico]]></kwd>
<kwd lng="es"><![CDATA[bagazo de caña]]></kwd>
<kwd lng="es"><![CDATA[diagrama heurístico]]></kwd>
<kwd lng="es"><![CDATA[SuperPro Designer]]></kwd>
<kwd lng="en"><![CDATA[citric acid]]></kwd>
<kwd lng="en"><![CDATA[sugarcane bagasse]]></kwd>
<kwd lng="en"><![CDATA[heuristic diagram]]></kwd>
<kwd lng="en"><![CDATA[SuperPro Designer]]></kwd>
</kwd-group>
</article-meta>
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