<?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>2304-0106</journal-id>
<journal-title><![CDATA[Anales de la Academia de Ciencias de Cuba]]></journal-title>
<abbrev-journal-title><![CDATA[Anales de la ACC]]></abbrev-journal-title>
<issn>2304-0106</issn>
<publisher>
<publisher-name><![CDATA[Academia de Ciencias de Cuba]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2304-01062022000100007</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Evaluación del empleo de microorganismos en la remoción de compuestos orgánicos persistentes y metales pesados]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of the use of microorganisms in the removal of persistent organic compounds and heavy metals]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Abalos Rodríguez]]></surname>
<given-names><![CDATA[Arelis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rodríguez Gámez]]></surname>
<given-names><![CDATA[Odalys]]></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[Nápoles Álvarez]]></surname>
<given-names><![CDATA[Janet]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cabrera Gómez]]></surname>
<given-names><![CDATA[José Gregorio]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Laffont Schwob]]></surname>
<given-names><![CDATA[Isabelle]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Portuondo]]></surname>
<given-names><![CDATA[Irasema Pérez]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Vilasó Cadre]]></surname>
<given-names><![CDATA[Javier Ernesto]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pérez Macías]]></surname>
<given-names><![CDATA[Rocío]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bahín Deroncelé]]></surname>
<given-names><![CDATA[Leonardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Milenes Santos]]></surname>
<given-names><![CDATA[Leydis]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Oriente Facultad de Ciencias Naturales y Exactas Centro de Estudios de Biotecnología Industrial (CEBI)]]></institution>
<addr-line><![CDATA[ Santiago de Cuba]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de São Paulo Instituto de Ciencias Biomédicas (ICB II) ]]></institution>
<addr-line><![CDATA[ Sao Paolo]]></addr-line>
<country>Brasil</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad de Marsella Instituto Mediterráneo de Biodiversidad y Ecología (IMBE) ]]></institution>
<addr-line><![CDATA[ Marsella]]></addr-line>
<country>Francia</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,Empresa Geominera Oriente  ]]></institution>
<addr-line><![CDATA[ Santiago de Cuba]]></addr-line>
<country>Cuba</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Refinería de Petróleo Hermanos Díaz  ]]></institution>
<addr-line><![CDATA[ Santiago de Cuba]]></addr-line>
<country>Cuba</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>04</month>
<year>2022</year>
</pub-date>
<volume>12</volume>
<numero>1</numero>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_arttext&amp;pid=S2304-01062022000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_abstract&amp;pid=S2304-01062022000100007&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.sld.cu/scielo.php?script=sci_pdf&amp;pid=S2304-01062022000100007&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN  Introducción:  La contaminación por compuestos orgánicos persistentes (COP) y metales pesados en aguas y suelos es un serio problema ambiental. El objetivo fue evaluar el empleo de microorganismos (autóctonos y de colección) y sus productos en la remoción de estos contaminantes.  Métodos:  Los microorganismos autóctonos se aislaron mediante enriquecimiento secuencial. La cuantificación de ramnolípidos y clorofenoles se realizó por métodos colorimétricos y la remoción de hidrocarburos se cuantificó gravimétricamente. Los metales se determinaron por absorción atómica con plasma (AAS-ICP).  Resultados: El ramnolípido producido por Pseudomonas aeruginosa ORA9 removió más del 50 % del cobre presente en aguas y el 75 % de los hidrocarburos de suelos contaminados. Asimismo, el empleo de 4 cepas bacterianas y bacterias rizosféricas aisladas de suelos contaminados permitieron hasta un 84 % y 72 % de remoción de hidrocarburos y de degradación del herbicida ácido 2,4-diclorofenoxiacético (2,4-D), respectivamente. Por otra parte, se comprobó la efectividad del empleo de sistemas biológicos para el tratamiento de las aguas contaminadas con hidrocarburos y metales pesados, obteniéndose porcentajes de remoción de hidrocarburos de 60 % y 84 % con un biorreactor Airlift diseñado y un sistema de reactores aerobio/anaerobio, respectivamente. Finalmente, utilizando biomasa microbiana seca, se extrajo el 52 %, 23 % y 14 % de los metales cobre, zinc y manganeso, respectivamente, presentes en aguas contaminadas. Como conclusión los resultados de esta investigación constituyen los fundamentos científicos para implementar un paquete tecnológico para la remediación de sitios contaminados con COP y metales pesados utilizando microorganismos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT  Introduction:  Contamination by persistent organic compounds (POCs) and heavy metals in waters and soils is a serious environmental problem. Objectives: To evaluate the use of microorganisms (autochthonous and from collection) and their products, in the removal of these contaminants.  Methods:  Autochthonous microorganisms were isolated by sequential enrichment. The quantification of rhamnolipids and chlorophenols was performed by colorimetric methods and hydrocarbon removal was gravimetrically quantified. Metals were determined by plasma atomic absorption (AAS-ICP).  Results:  Rhamnolipid produced by Pseudomonas aeruginosa ORA9 removed more than 50 % of copper present in waters and 75 % of hydrocarbons from contaminated soils. Likewise, the use of 4 bacterial strains and rhizospheric bacteria isolated from contaminated soils allowed up to 84 % and 72 % of hydrocarbon removal and degradation of herbicide 2,4-dichlorophenoxyacetic acid (2,4-D), respectively. On the other hand, the effectiveness of using biological systems for the treatment of hydrocarbon and heavy metal contaminated waters was verified, obtaining percentages of hydrocarbon removal of 60 % and 84 % with a designed airlift bioreactor and an aerobic/anaerobic reactor system, respectively. Finally, using dry microbial biomass, 52 %, 23 % and 14 % of copper, zinc and manganese metals, respectively, present in contaminated waters were extracted. Conclusions: The results of this research constitute the scientific bases to implement a technological package for the remediation of sites contaminated with POCs and heavy metals using microorganisms.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[pseudomonas aeruginosa]]></kwd>
<kwd lng="es"><![CDATA[rizobacterias]]></kwd>
<kwd lng="es"><![CDATA[ramnolípidos]]></kwd>
<kwd lng="es"><![CDATA[hidrocarburos;metales pesados]]></kwd>
<kwd lng="en"><![CDATA[Pseudomonas aeruginosa]]></kwd>
<kwd lng="en"><![CDATA[rhizobacterias]]></kwd>
<kwd lng="en"><![CDATA[rhamnolipids]]></kwd>
<kwd lng="en"><![CDATA[hydrocarbons]]></kwd>
<kwd lng="en"><![CDATA[heavy metals]]></kwd>
</kwd-group>
</article-meta>
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