<?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>2007-7858</journal-id>
<journal-title><![CDATA[CienciaUAT]]></journal-title>
<abbrev-journal-title><![CDATA[CienciaUAT]]></abbrev-journal-title>
<issn>2007-7858</issn>
<publisher>
<publisher-name><![CDATA[Universidad Autónoma de Tamaulipas]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-78582016000100063</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Influencia del origen del inóculo sobre la producción de biohidrógeno]]></article-title>
<article-title xml:lang="en"><![CDATA[Influence of the inoculum source on the biohydrogen production]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vera-Toledo]]></surname>
<given-names><![CDATA[Pedro]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Moreno-Andrade]]></surname>
<given-names><![CDATA[Iván]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[García-Lara]]></surname>
<given-names><![CDATA[Carlos M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Ciencias y Artes de Chiapas Facultad de Ingeniería Escuela de Ingeniería Ambiental]]></institution>
<addr-line><![CDATA[Tuxtla Gutérrez Chiapas]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional Autónoma de México Instituto de Ingeniería Laboratorio de Investigación en Procesos Avanzados de Tratamiento de Aguas]]></institution>
<addr-line><![CDATA[Juriquilla Querétaro]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2016</year>
</pub-date>
<volume>10</volume>
<numero>2</numero>
<fpage>63</fpage>
<lpage>71</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-78582016000100063&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-78582016000100063&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-78582016000100063&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: El biohidrógeno se considera el más prometedor de los biocombustibles por generar solo agua como residuo de su combustión. En este trabajo se compararon dos inóculos para la producción de biohidrógeno; el primero proveniente de la planta de tratamiento de una industria cervecera (Inóculo A) y el segundo de una planta de tratamiento de aguas residuales domésticas (Inóculo B). En ambos casos, para la selección de microorganismos productores de biohidrógeno se empleó un pretratamiento, consistente en choque térmico por 24 h a 104 °C de temperatura, seguido de una trituración hasta alcanzar la consistencia de polvo. La producción de biohidrógeno acumulado se ajustó al modelo de Gompertz, demostrando que a pesar de que se operó con un sustrato consistente de solución de glucosa al 5 %, enriquecido con medio mineral, agitación 15.71 rad/s y temperatura de 35 °C, el tiempo de latencia y la productividad fueron distintos. Los reactores del Inóculo A generaron un acumulado de 128.27 mL de biohidrógeno, 12 veces mayor que los del Inóculo B (9.11 mL), con productividades de 85.52 mL y 6.07 mL de H2/Lreactor/d respectivamente, lo que se atribuye a las cantidades de microorganismos presentes en los inóculos comparados. La concentración del biohidrógeno varió desde 0 % hasta 72.42 % para el Inóculo A y de 0 % a unos 29.49 % para el Inóculo B. El Inóculo A mostró alto potencial para la producción de biohidrógeno.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: Biohydrogen is considered the most promising biofuel as it generates only water as waste combustion. In this work, two inocula for biohydrogen production were compared, one from the treatment plant of a brewery (Inoculum A), and the other from a treatment plant ofdomestic residual waters (Inoculum B). In both cases, for selecting biohydrogen producing microorganisms, a pretreatment consisting of heat shock for 24 h at 104 ° C temperature, followed by crushing to reach the consistency of powder was used. The accumulated biohydrogen production was adjusted to the Gompertz model, showing that despite operating with a substrate which consisted of a 5 % glucose solution, enriched with mineral medium, stirring 15.71 rad/s at 35 °C, the latency period and productivity differed. The Inoculum A reactors generated a cumulative biohydrogen of 128.27 mL, 12 times higher than tho se inocu lated with Inoculum B (9.11 mL), with productivities of 85.52 mL and 6.07 mL of H2/Lreactor/d respectively. This is attributed to the quantities of microorganisms present in the inocula compared. Biohydrogen concentration varied from 0 % to 72.42 % for the Inoculum A, and from 0 % to about 29.49 % for Inoculum B. The inoculum A strain showed high potential for biohydrogen production.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[biohidrógeno]]></kwd>
<kwd lng="es"><![CDATA[inóculo]]></kwd>
<kwd lng="es"><![CDATA[pretratamiento]]></kwd>
<kwd lng="en"><![CDATA[biohydrogen]]></kwd>
<kwd lng="en"><![CDATA[inocula]]></kwd>
<kwd lng="en"><![CDATA[pretreatments]]></kwd>
</kwd-group>
</article-meta>
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