<?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>0123-7799</journal-id>
<journal-title><![CDATA[TecnoLógicas]]></journal-title>
<abbrev-journal-title><![CDATA[TecnoL.]]></abbrev-journal-title>
<issn>0123-7799</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico Metropolitano - ITM]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0123-77992022000100206</article-id>
<article-id pub-id-type="doi">10.22430/22565337.2165</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación de la extracción del colorante de totumo (Crescentia cujete L.) en un producto textil]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of the Extraction of Calabash Tree (Crescentia cujete L.) Colorant for Textile Products]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[López M.]]></surname>
<given-names><![CDATA[Luis G.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rada M.]]></surname>
<given-names><![CDATA[David F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Góngora D.]]></surname>
<given-names><![CDATA[Andrés F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales M.]]></surname>
<given-names><![CDATA[Laura C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ospina L.]]></surname>
<given-names><![CDATA[María C.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Los Llanos  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Los Llanos  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Los Llanos  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Universidad de Los Llanos  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Universidad de Los Llanos  ]]></institution>
<addr-line><![CDATA[Villavicencio ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>25</volume>
<numero>53</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0123-77992022000100206&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0123-77992022000100206&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0123-77992022000100206&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La presente investigación tuvo como objetivo evaluar la extracción del colorante de la pulpa del fruto de totumo (Crescentia cujete L.) obtenido en el municipio de Granada, departamento del Meta. Para ello se usaron tres distintos solventes: agua, hidróxido de sodio y etanol, lo cual permitió determinar el colorante de mayor rendimiento, el más estable ante pruebas de resistencia aplicado en un producto textil y la determinación de metabolitos. Esto se logró mediante la extracción del colorante por el método de digestión, en donde se agregó 150 g de pulpa a tres vasos diferentes de precipitado, adicionando agua, etanol e hidróxido de sodio hasta alcanzar un volumen de 300 ml durante un tiempo de 20 minutos, 30 minutos y 1 hora, respectivamente, a una agitación y temperatura constante de 75 °C. Se filtraron y pesaron los residuos y, una vez obtenidas las muestras, estas se utilizaron para teñir fragmentos de algodón de 2 x 2 cm, los cuales se sometieron a pruebas de resistencia con ácidos y álcalis, altas temperaturas y detergente. El color final se determinó empleando el colorímetro para obtener las coordenadas del círculo cromático de la escala CIEL a* b*. Finalmente, mediante espectrofotometría, se logró, por medio de los rangos de longitud de onda, considerar la existencia de pigmentos orgánicos presentes en dichas muestras. Se evidenció que el NaOH fue el solvente de mayor rendimiento. La muestra teñida con colorante extraído con etanol dio una diferencia total de color &#916;E = 3,41, considerándolo el de menor pérdida de color. Para la muestra con NaOH se obtuvo un rango de 270-370 nm, lo que indica presencia de flavonoides y, para el extracto con etanol se obtuvo un rango de 665-700 nm, lo cual indica presencia de saponinas. De acuerdo con lo anterior, es posible efectuar la extracción de color a partir del totumo, lo cual convierte este producto en una materia prima con potencial agroindustrial.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The objective of this study was to evaluate the extraction of colorant from the pulp of the fruit of calabash tree (Crescentia cujete L.) obtained in Granada (Meta, Colombia). Such extraction was performed using three different solvents (water, sodium hydroxide, and ethanol) to determine (1) the solvent that offers the highest yield and the greatest stability in resistance tests applied to a textile product and (2) the metabolites present in the samples. For this purpose, the dye was extracted by the digestion method, where 150 g of pulp were placed in three different beakers, adding water, ethanol, and sodium hydroxide until a volume of 300 ml was reached over 20 minutes, 30 minutes, and 1 hour, respectively, at a constant agitation and a temperature of 75 °C. The residues were filtered and weighed. The samples thus obtained were used to dye 2x2-cm pieces of cotton, which were subjected to resistance tests with acids and alkalis, high temperatures, and detergent. The final color was determined by a colorimeter to obtain its coordinates in the CIEL*a*b* color space. Finally, by means of spectrophotometry and peaks in the absorbance spectrum plots, it was possible to study the presence of organic pigments in the samples. The NaOH solvent achieved the best performance in the resistance tests. In turn, the sample dyed with the colorant extracted using ethanol showed a total color difference of &#916;E = 3.41, which was the lowest color loss in this study. The sample treated with NaOH exhibited peaks at 270-370 nm, indicating the presence of flavonoids; and that treated with ethanol, peaks at 665-700 nm, signaling the presence of saponins. According to the above, it is possible to extract a colorant from the calabash tree fruit, which makes it a potential agro-industrial raw material.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Colorante]]></kwd>
<kwd lng="es"><![CDATA[colorimetría]]></kwd>
<kwd lng="es"><![CDATA[Crescentia cujete L.]]></kwd>
<kwd lng="es"><![CDATA[espectrofotometría]]></kwd>
<kwd lng="es"><![CDATA[flavonoides]]></kwd>
<kwd lng="en"><![CDATA[Flavonoids]]></kwd>
<kwd lng="en"><![CDATA[colorant]]></kwd>
<kwd lng="en"><![CDATA[colorimetry]]></kwd>
<kwd lng="en"><![CDATA[Crescentia cujete L.]]></kwd>
<kwd lng="en"><![CDATA[spectrophotometry]]></kwd>
</kwd-group>
</article-meta>
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