<?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>2221-2442</journal-id>
<journal-title><![CDATA[Revista CENIC Ciencias Químicas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. CENIC Cienc. Quím.]]></abbrev-journal-title>
<issn>2221-2442</issn>
<publisher>
<publisher-name><![CDATA[Centro Nacional de Investigaciones Científicas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2221-24422022000200216</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[EVALUACIÓN DE LAS ESPECIFICACIONES DE CALIDAD DEL EXTRACTO LIPÍDICO DE CUCURBITA PEPO]]></article-title>
<article-title xml:lang="en"><![CDATA[EVALUATION AND OF THE QUALITY SPECIFICATIONS OF THE CUCURBITA PEPO LIPID EXTRACT]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García Peña]]></surname>
<given-names><![CDATA[Caridad Margarita]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Fernández Puentes]]></surname>
<given-names><![CDATA[Sheyla]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Mora]]></surname>
<given-names><![CDATA[José Raúl]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Martínez Espinosa]]></surname>
<given-names><![CDATA[Vivian]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Nogueira Mendoza]]></surname>
<given-names><![CDATA[Antonio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Investigación y Desarrollo de Medicamentos (CIDEM)  ]]></institution>
<addr-line><![CDATA[ La Habana]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2022</year>
</pub-date>
<volume>53</volume>
<numero>2</numero>
<fpage>216</fpage>
<lpage>225</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2221-24422022000200216&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2221-24422022000200216&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2221-24422022000200216&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN Calcular experimentalmente los límites de especificación de calidad para el Extracto lipídico de Cucurbita pepo, a través del método de la K tabulada. Se realizó el análisis, a diez lotes consecutivos, de los parámetros peso específico, índice de refracción, acidez, saponificación, peróxido, y contenido de ácidos grasos (palmítico, esteárico, oleico y linoleico). Se evaluó la distribución de los datos y posteriormente se calcularon los límites de especificación de calidad por el método de la K tabulada, para un 95% de confianza. Los valores obtenidos en la evaluación demostraron la calidad del extacto, cumpliendo la distribución normal de los datos, con valores de probabilidad superiores a 0,05. Empleando el método de la K tabulada se establecieron límites de especificación unilaterales para los índices de acidez y peróxido, contenido de ácidos grasos, mientras que, para el peso específico, índices de refracción y saponificación fueron bilaterales. Los lotes de extracto lipídico de Cucurbita pepo poseen adecuada calidad, considerando los resultados de los parámetros evaluados. Se demostró que existe un alto grado de conformidad en las propiedades entre los lotes evaluados.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The objective was to experimentally determine the quality specification limits for the Cucurbita pepo lipid extract, by using the tabulated K method. Using ten consecutive lots, an analysis was carried out of parameters such as specific weight, refractive indexes, acidity, saponification, peroxide, and fatty acid content (palmitic, stearic, oleic and linoleic). The distribution of the data was assessed. Then, the quality specification limits were calculated, for a 95% degree of confidence. The values obtained in the assessment of physical and chemical parameters demonstrated the quality of the extract, by adhering to the normal distribution of data, with probability values above 0.05. Using the tabulated K method were established unilateral quality specification limits to index of acidity and peroxide, fatty acid content, while to specific weight, refractive and saponification indexes were bilateral. The assessed lots of Cucurbita pepo lipid extract have adequate quality, considering the results of the evaluated parameters. The properties of the assessed lots showed a high degree of compliance.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Ácido grasos]]></kwd>
<kwd lng="es"><![CDATA[Especificaciones de calidad]]></kwd>
<kwd lng="es"><![CDATA[Método de K tabulada]]></kwd>
<kwd lng="es"><![CDATA[Extracto lipídico de Cucurbita pepo]]></kwd>
<kwd lng="en"><![CDATA[Fatty acid]]></kwd>
<kwd lng="en"><![CDATA[Quality specifications]]></kwd>
<kwd lng="en"><![CDATA[Method of K tabulated]]></kwd>
<kwd lng="en"><![CDATA[Cucurbita pepo lipid extract]]></kwd>
</kwd-group>
</article-meta>
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