<?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>2007-3380</journal-id>
<journal-title><![CDATA[Revista bio ciencias]]></journal-title>
<abbrev-journal-title><![CDATA[Revista bio ciencias]]></abbrev-journal-title>
<issn>2007-3380</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma de Nayarit]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-33802019000100125</article-id>
<article-id pub-id-type="doi">10.15741/revbio.06.e433</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Ultrasound-assisted oil extraction from Ricinus communis L. seed]]></article-title>
<article-title xml:lang="es"><![CDATA[Extracción de aceite de la semilla de Ricinus communis L. asistida por ultrasonido]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salinas-de León]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo-Quiroz]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Castillo-Reyes]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Morales-Martínez]]></surname>
<given-names><![CDATA[T.K.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez-De la Garza]]></surname>
<given-names><![CDATA[J. A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ríos-González]]></surname>
<given-names><![CDATA[L.J.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Coahuila Facultad de Ciencias Químicas Departamento de Biotecnología]]></institution>
<addr-line><![CDATA[Saltillo Coahuila de Zaragoza]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Campo Experimental Saltillo ]]></institution>
<addr-line><![CDATA[ Coahuila de Zaragoza]]></addr-line>
<country>México</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2019</year>
</pub-date>
<volume>6</volume>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-33802019000100125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-33802019000100125&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-33802019000100125&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The aimed of this work was to determine the optimal conditions for oil extraction of Ricinus communis L. seed by means of ultrasound. The effect of 3 factors over oil yield extraction were evaluated: 1) seed pretreatment 2) ultrasound time and 3) solvent mixture ratio compared to conventional Soxhlet extraction. The optimal conditions for oil extraction were obtained with a pretreatment that consisted in washing and drying of the seed, with a 2.5 h exposure to ultrasound in a mixture of hexane/isopropanol solvents (1:1 v/v). The extraction yield was 73.5% with an extraction rate of 1.8 g.h-1.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El objetivo de este trabajo fue determinar las condiciones óptimas de la extracción asistida con ultrasonido del aceite de semilla de Ricinus communis L. Se evaluó el efecto de 3 factores sobre el rendimiento de aceite extraído, los tratamiento fueron 1) pretratamiento de la semilla, 2) tiempo de incidencia del ultrasonido y 3) tipo de solvente utilizado. Los resultados fuero comparados con la extracción convencional Soxhlet para evaluar el efecto del ultrasonido. Las condiciones óptimas para la extracción de aceite consistieron en realizar un pretratamiento de lavado y secado de la semilla, asistiendo la extracción con ultrasonido en una mezcla de solventes hexano/isopropanol (1:1, v/v), durante 2.5 h. Bajo condiciones óptimas se alcanzó un máximo un rendimiento de extracción del 73.5 % y una velocidad de extracción de 1.8 g.h-1.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Ricinus communis]]></kwd>
<kwd lng="en"><![CDATA[seed]]></kwd>
<kwd lng="en"><![CDATA[Oil]]></kwd>
<kwd lng="en"><![CDATA[ultrasound]]></kwd>
<kwd lng="es"><![CDATA[Ricinus communis]]></kwd>
<kwd lng="es"><![CDATA[semilla]]></kwd>
<kwd lng="es"><![CDATA[aceite]]></kwd>
<kwd lng="es"><![CDATA[ultrasonido]]></kwd>
</kwd-group>
</article-meta>
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