<?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>0123-4226</journal-id>
<journal-title><![CDATA[Revista U.D.C.A Actualidad & Divulgación Científica]]></journal-title>
<abbrev-journal-title><![CDATA[rev.udcaactual.divulg.cient.]]></abbrev-journal-title>
<issn>0123-4226</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Ciencias Aplicadas y Ambientales]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-42262020000100018</article-id>
<article-id pub-id-type="doi">10.31910/rudca.v23.n1.2020.1303</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Obtención de un colorante a partir de corteza de maracuyá con el uso de técnicas convencionales de extracción]]></article-title>
<article-title xml:lang="en"><![CDATA[Obtaining a dye from passion fruit cortex with the use of conventional extraction techniques]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Tarazona-Díaz]]></surname>
<given-names><![CDATA[Martha]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Becerra]]></surname>
<given-names><![CDATA[Nubia]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Piedra]]></surname>
<given-names><![CDATA[Johan]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Beltrán]]></surname>
<given-names><![CDATA[Richard]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Bogotá Jorge Tadeo Lozano  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Bogotá Jorge Tadeo Lozano  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Bogotá Jorge Tadeo Lozano  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Bogotá Jorge Tadeo Lozano  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</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>23</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-42262020000100018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-42262020000100018&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-42262020000100018&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN El maracuyá es un fruto tropical que se cultiva primordialmente para la obtención de pulpa, siendo la corteza su principal subproducto que carece, en la actualidad, de interés industrial; sin embargo, con el fin de diversificar los derivados provenientes de la producción de maracuyá, se ha demostrado que la corteza contiene carotenoides, dentro de los que se destaca el &#946;-caroteno y la luteína, que podrían ser utilizados en alimentos, debido a su poder antioxidante e, incluso, como colorante natural alternativo. Por lo anterior, el objetivo de este trabajo fue obtener un extracto rico en carotenoides a partir de su corteza; para ello, se evaluó la extracción con etanol, mediante tres técnicas: inmersión, baño termostático y soxhlet. El mayor rendimiento, se obtuvo con el método soxhlet; para esta técnica, se estudió el efecto de la concentración de etanol (entre 80% y 90% v/v), la proporción solvente-materia prima (con relaciones entre 40:1 y 50:1) y el tiempo (definido entre 90 y 150 minutos). Los resultados, se analizaron mediante modelo de superficie de respuesta, obteniendo el mayor rendimiento con etanol al 90%, utilizando 50mL/g corteza y 150 minutos de operación. A estas condiciones, el rendimiento de extracción fue de 2208,53µg &#946;-caroteno/100g muestra. Por último, se determinó la diferencia de color entre el extracto óptimo y una solución de tartrazina, evidenciando una diferencia de color de 3,07 unidades cieLAB, lo cual, muestra que el producto de lixiviación de la corteza de maracuyá tiene potencial para su uso como aditivo alimentario, reemplazando colorantes sintéticos, como la tartrazina.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT Passion fruit is a tropical fruit that is usually cultivated to obtain pulp, being the cortex its main not exploited by-product, because of the actual absence of industrial interest. However, with the aim of diversifying the derivates from the production of passion fruit products, it has been demonstrated that the cortex contains carotenoids, such as &#946;-carotene and lutein; which could be used in food due to its antioxidant capacity, or even like a food colorant. Therefore, the objective of this work was to obtain a carotenoid-rich extract from its cortex; for this, three techniques of extraction with ethanol were evaluated, by immersion, thermostatic bath and Soxhlet. Being the last technique that one with which the best yield was obtained. With the highest yield technique, the following factors were evaluated: ethanol concentration on 80% and 90% v/v, solvent-raw material ratio on 40:1 and 50:1 and time on 90 and 150min. The best yield was obtaining to 90% ethanol, 50mL solvent/g raw material and 150min, for an extraction yield of 2208.53µg &#946;-caroten/100 g sample. Finally, the color difference between the optimal extract and a tartrazine solution was determined, evidencing a color difference of 3.07cieLAB units; this shows that the passion fruit leaching product has the potential to be used as a food additive, replacing synthetic dyes such as tartrazine.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Passiflora edulis f. flavicarpa]]></kwd>
<kwd lng="es"><![CDATA[extractor de Soxhlet]]></kwd>
<kwd lng="es"><![CDATA[cáscara del maracuyá]]></kwd>
<kwd lng="es"><![CDATA[extracción de carotenoides]]></kwd>
<kwd lng="es"><![CDATA[diferencia de color]]></kwd>
<kwd lng="en"><![CDATA[Passiflora edulis f. flavicarpa]]></kwd>
<kwd lng="en"><![CDATA[Soxhlet extractor]]></kwd>
<kwd lng="en"><![CDATA[husk of passion fruit]]></kwd>
<kwd lng="en"><![CDATA[extraction of carotenoids]]></kwd>
<kwd lng="en"><![CDATA[color difference]]></kwd>
</kwd-group>
</article-meta>
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