<?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>2224-6185</journal-id>
<journal-title><![CDATA[Tecnología Química]]></journal-title>
<abbrev-journal-title><![CDATA[RTQ]]></abbrev-journal-title>
<issn>2224-6185</issn>
<publisher>
<publisher-name><![CDATA[Universidad de Oriente]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2224-61852019000300580</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Temperatura del cultivo mixto de chlorella vulgaris a cielo abierto: incidencia en la concentración de biomasa]]></article-title>
<article-title xml:lang="en"><![CDATA[Temperature of the mixed culture of chlorella vulgaris to open sky: incidence in biomass concentration]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González Muñoz]]></surname>
<given-names><![CDATA[Niela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alfaro Vives]]></surname>
<given-names><![CDATA[Orlando Gines]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Crespo Sariol]]></surname>
<given-names><![CDATA[Harold]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Silva]]></surname>
<given-names><![CDATA[Rosa María]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Jover Capote]]></surname>
<given-names><![CDATA[Abdiel]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Centro de Biofísica Médica (CBM)  ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Centro de Investigaciones de Energía Solar (CIES)  ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Oriente  ]]></institution>
<addr-line><![CDATA[Santiago de Cuba ]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2019</year>
</pub-date>
<volume>39</volume>
<numero>3</numero>
<fpage>580</fpage>
<lpage>591</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2224-61852019000300580&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2224-61852019000300580&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2224-61852019000300580&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[ RESUMEN La temperatura del cultivo es proporcional a la producción de microalgas, alcanzando valores óptimos para cada especie. Por encima de esta, aumenta la respiración y la fotorrespiración, reduciéndose la productividad. En este trabajo se ha evaluado la incidencia de la temperatura de suspensión en la biomasa del cultivo mixto de Chlorella vulgaris en residuales porcinos a cielo abierto. Se realiza un análisis multivariado para obtener las variables ambientales con mayor influencia en la temperatura del cultivo, observándose qué todos los factores son estadísticamente significativos pero la irradiación solar es el que tiene mayor influencia, mostrando que el 72,8 % de la variabilidad de la temperatura depende de la irradiación solar. A través de un análisis de regresión no lineal y aplicando el modelo cinético logístico de Verhulst se analizan tres corridas a tres temperaturas promedios diarias (28oC, 29oC, 30oC) obteniéndose los mejores ajustes a 30oC donde se alcanza una máxima concentración de biomasa de 20,8 g.L-1.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The culture temperature is proportional to the production of microalgae, reaching optimal values &#8203;&#8203;for each species. Above this optimal value, the respiration and photorespiration increases thus reducing productivity. In this work, the incidence of culture temperature in the biomass concentration of the mixed cultivation of Chlorella vulgaris has been evaluated in porcine residuals in an open system. A multivariate analysis is carried out to obtain the environmental variables with the greatest influence on the algae crop temperature, although all the factors are statistically significant, the solar irradiation has the greatest influence, showing that 72.8% of the temperature variability depends on solar irradiation. Through a non-linear regression analysis and by applying the logistic kinetic model of Verhulst, three runs are analyzed at three average daily temperatures obtaining the best fitting at 30oC where a maximum of biomass concentration of 20,8 g.L-1 is reached.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Chlorella vulgaris]]></kwd>
<kwd lng="en"><![CDATA[temperature]]></kwd>
<kwd lng="en"><![CDATA[biomass]]></kwd>
<kwd lng="en"><![CDATA[porcine residuals]]></kwd>
<kwd lng="es"><![CDATA[Chlorella vulgaris]]></kwd>
<kwd lng="es"><![CDATA[temperatura, biomasa, residuales porcino]]></kwd>
</kwd-group>
</article-meta>
</front><back>
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