<?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>S1665-14562021000200011</article-id>
<article-id pub-id-type="doi">10.18633/biotecnia.v23i2.1334</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Caracterización química y nutrimental de variedades de maíz (Zea mays L.) de alta calidad de proteína (QPM)desarrolladas en Yucatán, México]]></article-title>
<article-title xml:lang="en"><![CDATA[Chemical and nutritional characterization of high quality protein maize (Zea mays L.) varieties developed in Yucatan, México]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chan-Chan]]></surname>
<given-names><![CDATA[Manuel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moguel-Ordóñez]]></surname>
<given-names><![CDATA[Yolanda]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gallegos-Tintoré]]></surname>
<given-names><![CDATA[Santiago]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Chel-Guerrero]]></surname>
<given-names><![CDATA[Luis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Betancur-Ancona]]></surname>
<given-names><![CDATA[David]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma de Yucatán Facultad de Ingeniería Química ]]></institution>
<addr-line><![CDATA[ Yucatán]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias Campo Experimental Mocochá ]]></institution>
<addr-line><![CDATA[ Yucatán]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2021</year>
</pub-date>
<volume>23</volume>
<numero>2</numero>
<fpage>11</fpage>
<lpage>21</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S1665-14562021000200011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S1665-14562021000200011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S1665-14562021000200011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La desnutrición es un problema que afecta a las comunidades rurales. El maíz es alimento básico cuya ingesta es esencial para el crecimiento y desarrollo de los infantes. La calidad proteínica del maíz es pobre debido a la deficiencia de aminoácidos como lisina y triptófano, por lo cual, se han desarrollado maíces de calidad de proteína (denominados QPM). Por lo que en el presente estudio, se realizó la caracterización química y nutrimental de los granos de maíz híbrido Sac Béh y Chichén Itzá, determinando la composición químico proximal, los minerales Ca, Fe, K, Mg, Na y P; el perfil de ácidos grasos y de aminoácidos. Se evaluó la calidad de la proteína mediante la digestibilidad &#8220;in vitro&#8221; y cómputo químico, aminoácido limitante, la puntuación de aminoácidos corregido con digestibilidad de proteínas (PDCAAS), la relación de eficiencia de proteína calculada (c-PER) y el valor biológico (VB). Se demostró un aumento de proteínas y alto contenido de aceite con 7 % de lípidos. Se encontró un mayor contenido de ácidos grasos monoinsaturados (MUFA) que saturados (SFA) y se mantuvo el contenido mineral. La calidad de la proteína fue superior con respecto a los predecesores, con mayores niveles de lisina, triptófano, fenilalanina e isoleucina, mayor digestibilidad y el doble de valor biológico.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Malnutrition is a problem that affects rural communities worldwide. Maize is a food whose intake and nutritional quality is essential for the growth and development of infants. Maize protein quality is poor due to amino acid deficiencies such as lysine and tryptophan, which has generated the development of the so-called quality protein maize (QPM). Chemical and nutritional characterization of the Sac Béh and Chichén Itzá maize hybrids was performed. The proximal analysis, minerals Ca, Fe, K, Mg, Na and P, fatty acid and amino acid profiles were determined. Protein quality was also evaluated by the determination of in vitro digestibility and chemical score, limiting amino acid, protein digestibility corrected amino acid score (PDCAAS), calculated protein efficiency ratio (c-PER), and the biological value (BV). In hybrid varieties, an increase in protein was demonstrated. They were high oil corn (HOC) with 7 % lipids. A higher content of monounsaturated fatty acids (MUFA) than saturated fatty acids (SFA) was found with an improvement in the quality of the oil, and the mineral content maintained. The protein quality was superior with respect to the native predecessors, with higher levels of lysine, tryptophan, phenylalanine and isoleucine, with greater digestibility and with double biological value.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Maíz]]></kwd>
<kwd lng="es"><![CDATA[híbridos]]></kwd>
<kwd lng="es"><![CDATA[valor nutrimental]]></kwd>
<kwd lng="es"><![CDATA[calidad de proteína]]></kwd>
<kwd lng="es"><![CDATA[minerales]]></kwd>
<kwd lng="en"><![CDATA[maize]]></kwd>
<kwd lng="en"><![CDATA[hybrids]]></kwd>
<kwd lng="en"><![CDATA[nutritional value]]></kwd>
<kwd lng="en"><![CDATA[protein quality]]></kwd>
<kwd lng="en"><![CDATA[minerals]]></kwd>
</kwd-group>
</article-meta>
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