<?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>1390-6542</journal-id>
<journal-title><![CDATA[Enfoque UTE]]></journal-title>
<abbrev-journal-title><![CDATA[Enfoque UTE]]></abbrev-journal-title>
<issn>1390-6542</issn>
<publisher>
<publisher-name><![CDATA[Universidad UTE]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S1390-65422018000400131</article-id>
<article-id pub-id-type="doi">10.29019/enfoqueute.v9n4.286</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Potencial de plantas acuáticas para la remoción de coliformes totales y Escherichia coli en aguas servidas]]></article-title>
<article-title xml:lang="en"><![CDATA[Evaluation of the potential of acuatic plants to remove total coliforms and Escherichia coli from wastewater]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[León]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Pernía]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Siguencia]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Franco]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Noboa]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Cornejo]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Guayaquil beatriz.pernias rosa.siguencia]]></institution>
<addr-line><![CDATA[Guayaquil ]]></addr-line>
<country>Ecuador</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2018</year>
</pub-date>
<volume>9</volume>
<numero>4</numero>
<fpage>131</fpage>
<lpage>144</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_arttext&amp;pid=S1390-65422018000400131&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_abstract&amp;pid=S1390-65422018000400131&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.senescyt.gob.ec/scielo.php?script=sci_pdf&amp;pid=S1390-65422018000400131&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen: En el Ecuador, muchas comunidades dependen del agua superficial no tratada como la principal fuente de agua potable y estas se encuentran contaminadas con coliformes fecales y Escherichia coli. El objetivo de esta investigación fue encontrar plantas acuáticas con potencial de remover E. coli y coliformes totales de agua contaminada. Se realizaron muestreos en: el Río Guayas, el Recinto Aguas Frías y el Estero Peñafiel donde se seleccionaron las especies: Azolla caroliniana Willd, Eichhornia crassipes (Mart.) Solms, Pistia stratiotes L., Salvinia auriculata Aubl. y Lemna minor L. Las plantas se reprodujeron in vitro y se realizaron bioensayos para verificar su capacidad de remover E. coli y coliformes. También se determinaron los parámetros fitoquímicos: temperatura, pH y sólidos totales disueltos. Los ensayos se realizaron por triplicado en agua con fertilizante y se inoculó una cepa de referencia E. coli ATCC25922. Al transcurrir siete días se determinó la carga bacteriana remanente y se obtuvo un porcentaje de remoción de E. coli en comparación al control del 99% para A. caroliniana, E. crassipes y Lemna sp., mientras que para P. stratiotes y S. auriculata fue del 100% (p = 0.027). Una vez evidenciado el potencial de estas especies para remover las bacterias, se realizaron ensayos con aguas servidas en los cuales S. auriculata y A. caroliniana lograron el 100% de remoción de las coliformes y E. coli (p = 0.003). Se sugiere el uso de S. auriculata y A. caroliniana para el tratamiento de las aguas.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract: In Ecuador, most communities rely on non-treated surface water as their main drinkable water source. In most cases, the water source is contaminated with fecal coliforms and Escherichia coli. This research is intended to find aquatic plants with the ability to remove the overall coliforms and E. coli from contaminated water. Aquatic plants were taken in Rio Guayas, Recinto Aguas Frias and Estero Peñafiel, and the following species were selected to carry out the experiment: Azolla caroliniana Willd, Eichhornia crassipes (Mart.) Solms, Pistia stratiotes L., Salvinia auriculata Aubl. and Lemna minor L. specimens of these plants were grown in vitro to verify their capacity and ability to remove E. coli and the coliforms using a bioassay method. Physico-chemical parameters were also tested, such as: temperature, PH levels and total dissolved solids. This experiment was developed in water and using a method inoculating a referential E. coli ATCC25922 strain. After 7 days the remaining bacterial percentage was determined, and it was noted a capacity of 99% of E. coli removal for A. caroliniana, E. crassipes and L. minor, and 100% for P. stratiotes and S. auriculata (p = 0.027). Once the potential of bacterial removal of these plants were proved, test were executed in wastewater, resulting in a 100% removal of coliforms and E. coli for S. auriculata and A. caroliniana (p = 0.003). After the results obtained in this experiment, it is recommended to use S. auriculata and A. caroliniana as a strategy for treatment and removal of bacteria from contaminated water.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[fitorremediación]]></kwd>
<kwd lng="es"><![CDATA[E. coli ATCC25922]]></kwd>
<kwd lng="es"><![CDATA[A. caroliniana]]></kwd>
<kwd lng="es"><![CDATA[S. auriculata]]></kwd>
<kwd lng="en"><![CDATA[phytoremediation]]></kwd>
<kwd lng="en"><![CDATA[E. coli ATCC25922]]></kwd>
<kwd lng="en"><![CDATA[A. caroliniana]]></kwd>
<kwd lng="en"><![CDATA[S. auriculata]]></kwd>
</kwd-group>
</article-meta>
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