<?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>1665-1456</journal-id>
<journal-title><![CDATA[Biotecnia]]></journal-title>
<abbrev-journal-title><![CDATA[Biotecnia]]></abbrev-journal-title>
<issn>1665-1456</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Sonora, División de Ciencias Biológicas y de la Salud]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1665-14562020000100166</article-id>
<article-id pub-id-type="doi">10.18633/biotecnia.v22i1.1193</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Análisis de parámetros fisicoquímicos, compuestos fenólicos y capacidad antioxidante en piel, pulpa y fruto entero de cinco cultivares de manzana (Malus domestica) cosechadas en México]]></article-title>
<article-title xml:lang="en"><![CDATA[Analysis of physicochemical parameters, phenolic compounds and antioxidant capacity of peel, pulp and whole fruit of five apple varieties (Malus domestica) harvested in Mexico]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Corona Leo]]></surname>
<given-names><![CDATA[Lizbeth Sandra]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Hernández-Martínez]]></surname>
<given-names><![CDATA[Diana Maylet]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Meza-Márquez]]></surname>
<given-names><![CDATA[Ofelia Gabriela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas-Zacatenco Departamento de Ingeniería Bioquímica]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Politécnico Nacional Escuela Nacional de Ciencias Biológicas-Santo Tomás Departamento de Biofísica]]></institution>
<addr-line><![CDATA[Ciudad de México ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2020</year>
</pub-date>
<volume>22</volume>
<numero>1</numero>
<fpage>166</fpage>
<lpage>174</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-14562020000100166&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-14562020000100166&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-14562020000100166&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La manzana es fuente de compuestos polifenólicos con propiedades antioxidantes que tienen efectos protectores para la salud humana. El objetivo del trabajo fue determinar los sólidos solubles totales (SST), acidez total (AT), pH, compuestos fenólicos totales (CFT), contenido total de flavonoides (CTF), contenido total de antocianinas (CTA) y capacidad antioxidante (ABTS y DPPH) en cinco variedades de manzana cultivadas en México. Los resultados indican que, en todas las variedades de manzana, los CFT, CTF, CTA, ABTS y DPPH se encuentran en mayor cantidad en la piel, seguido por el fruto entero y pulpa. En la manzana Golden delicious y en la pulpa de todos los cultivares no se detectaron antocianinas. El análisis de componentes principales (ACP) indica que los SST y AT están asociados a la pulpa y fruto entero, mientras que los CFT, CTF, CTA, ABTS y DPPH están asociados a la piel del fruto. Los CFT y CTA presentaron correlación positiva (r: 0.72-0.83) con el método DPPH en piel, mientras que el ensayo ABTS tuvo correlación positiva (r: 0.75-0.89) con CFT y CTF en piel. Los SST, AT, pH, CFT, CTF, CTA, ABTS y DPPH varían dependiendo del cultivar, región geográfica y parte del fruto.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Apples are a source of polyphenolic compounds with antioxidant properties that have protective effects on human health. The objective of this work was to determine total soluble solids (SST), total acidity (AT), pH, total phenolic compounds (CFT), total flavonoid content (CTF), total anthocyanin content (CTA) and antioxidant capacity (ABTS and DPPH) of five apple varieties harvested in Mexico. Results indicate that CFT, CTF, CTA, ABTS and DPPH are distributed in the following order: peel, whole fruit, pulp. In the Golden delicious variety and in the pulp of all apple varieties no anthocyanins were detected. The ACP indicates that SST and AT are associated with pulp and whole fruit, while CFT, CTF, CTA, ABTS and DPPH are associated with the peel of the fruit. The CFT and CTA showed a positive correlation (r: 0.72-0.83) with the DPPH method in peel, while the ABTS assay had a positive correlation (r: 0.75-0.89) with CFT and CTF in peel. The SST, AT, pH, CFT, CTF, CTA, ABTS and DPPH vary depending on the cultivar, geographic region and part of the fruit.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Malus domestica]]></kwd>
<kwd lng="es"><![CDATA[compuestos fenólicos]]></kwd>
<kwd lng="es"><![CDATA[flavonoides]]></kwd>
<kwd lng="es"><![CDATA[antocianinas]]></kwd>
<kwd lng="es"><![CDATA[capacidad antioxidante]]></kwd>
<kwd lng="en"><![CDATA[Malus domestica]]></kwd>
<kwd lng="en"><![CDATA[phenolic compounds]]></kwd>
<kwd lng="en"><![CDATA[flavonoids]]></kwd>
<kwd lng="en"><![CDATA[anthocyanins]]></kwd>
<kwd lng="en"><![CDATA[antioxidant capacity]]></kwd>
</kwd-group>
</article-meta>
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