<?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>0188-4999</journal-id>
<journal-title><![CDATA[Revista internacional de contaminación ambiental]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Int. Contam. Ambient]]></abbrev-journal-title>
<issn>0188-4999</issn>
<publisher>
<publisher-name><![CDATA[Universidad Nacional Autónoma de México, Instituto de Ciencias de la Atmósfera y Cambio Climático]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0188-49992018000100149</article-id>
<article-id pub-id-type="doi">10.20937/rica.2018.34.01.13</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[BIOCONVERSIÓN DE DESPERDICIOS VEGETALES A BIOGÁS A PARTIR DE MICROORGANISMOS RUMINALES]]></article-title>
<article-title xml:lang="en"><![CDATA[BIOCONVERSION OF VEGETABLE WASTES TO BIOGAS FROM RUMENMICROORGANISMS]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Campos-Montiel]]></surname>
<given-names><![CDATA[Rafael Germán]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Razo-Rodríguez]]></surname>
<given-names><![CDATA[Óscar Enrique del]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Almaraz-Buendía]]></surname>
<given-names><![CDATA[Isaac]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ramírez-Bribiesca]]></surname>
<given-names><![CDATA[Efrén]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Soriano-Robles]]></surname>
<given-names><![CDATA[Ramón]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Salinas-Martínez]]></surname>
<given-names><![CDATA[Jesús Armando]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Arias-Margarito]]></surname>
<given-names><![CDATA[Ladislao]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[González-Muñoz]]></surname>
<given-names><![CDATA[Sergio Segundo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad Autónoma del Estado de Hidalgo Instituto de Ciencias Agropecuarias ]]></institution>
<addr-line><![CDATA[Tulancingo Hidalgo]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Colegio de Postgraduados, Campus Montecillo  ]]></institution>
<addr-line><![CDATA[Texcoco Estado de México]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Universidad Autónoma Metropolitana-Iztapalapa Biología de la Reproducción ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>00</month>
<year>2018</year>
</pub-date>
<volume>34</volume>
<numero>1</numero>
<fpage>149</fpage>
<lpage>155</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S0188-49992018000100149&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S0188-49992018000100149&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S0188-49992018000100149&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[RESUMEN La creciente demanda de alimentos en áreas urbanas genera cada vez mayor cantidad de desperdicios orgánicos, incluyendo residuos vegetales. El manejo de estos residuos vegetales causa emisiones de gases efecto invernadero (GEI) por su recolección, transporte, y depósito en vertederos. Para identificar su potencial de GEI, en un mercado de alimentos se recolectaron residuos de hojas de lechuga (LS), de col (BOV), de coliflor (BOB), de maíz (HZM), de espinaca (SO) y de nopal (OF), se fermentaron in vitro usando líquido ruminal como inóculo y se compararon con heno de avena (AS), heno de alfalfa (AH) y ensilado de maíz (EZM), forrajes utilizados con frecuencia en la alimentación de rumiantes. Las variables fueron degradación in vitro de la materia seca (DIVMS), pH, cinética de producción de gas y concentración de metano (CH4). La fermentación se realizó durante 96 h a 39 ºC y las muestras de gas para medir la concentración de CH4 se tomaron a 9, 12, 24, 34 y 48 h de incubación. La DIVMS de LS, BOV, BOB, HZM y OF fue 12.8 % mayor a AS, AH y EZM. Entre las 9 y 12 h de incubación la emisión de CH4 a partir de BOV, BOB and HZM fue 44.8 % superior a los tres forrajes. La principal conclusión es que estos residuos vegetales son degradados adecuadamente por los microorganismos ruminales y, por lo tanto, se pueden usar para la producción de biogás en áreas urbanas para disminuir su depósito en vertederos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[ABSTRACT The growing demand for food in urban areas generates an increasing amount of organic wastes, including vegetable residues. The management of these wastes can lead to greenhouse gases emissions (GHG) through its process, including collection, transportation, and accumulation in landfills. To identify the potential GHG from vegetable residues, in vitro fermentations of collected residues of lettuce (LS), cabbage (BOV), cauliflower (BOB), corn cob (HZM), and spinach (SO) leaves, as well as leftovers of cladodes from cactus pear (OF) from a food market, were compared with oat hay (AS), lucerne hay (AH) and corn silage (EZM), major components in ruminant feed using rumen fluid as the inoculum. The variables were: in vitro dry matter degradation (IVDMD), pH, kinetics of gas production and methane (CH4) concentration. Fermentation was carried out at 39 ºC for 96 h, and the gas samples to measure CH4 concentration were taken at 9, 12, 24, 34 and 48 h of incubation. The IVDMD of LS, BOV, BOB, HZM and OF was 12.8 % higher than those of the forages (AS, AH and EZM). Between 9 and 12 h of incubation, CH4 emission from BOV, BOB and HZM was 44.8 % higher than that from the three forages. Our results suggest that vegetable residues can be adequately degraded by the rumen microorganisms and, therefore, they can be used for biogas production in urban areas to decrease their accumulation in landfills.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[metano]]></kwd>
<kwd lng="es"><![CDATA[desechos orgánicos]]></kwd>
<kwd lng="es"><![CDATA[producción de gas]]></kwd>
<kwd lng="es"><![CDATA[bioenergía]]></kwd>
<kwd lng="es"><![CDATA[residuos vegetales]]></kwd>
<kwd lng="en"><![CDATA[methane]]></kwd>
<kwd lng="en"><![CDATA[organic wastes]]></kwd>
<kwd lng="en"><![CDATA[gas production]]></kwd>
<kwd lng="en"><![CDATA[bioenergy]]></kwd>
<kwd lng="en"><![CDATA[vegetable residues]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="journal">
<collab>AOAC</collab>
<article-title xml:lang=""><![CDATA[Official methods of analysis]]></article-title>
<source><![CDATA[Association of Official Analytic Chemists]]></source>
<year>1990</year>
<edition>15a</edition>
<page-range>1094</page-range><publisher-loc><![CDATA[Washington, D.C. ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bonilla]]></surname>
<given-names><![CDATA[J.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Lemus]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Emisión de metano entérico por rumiantes y su contribución al calentamiento global y al cambio climático]]></article-title>
<source><![CDATA[Revisión. Rev. Mex. Cienc. Pecu.]]></source>
<year>2012</year>
<volume>3</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>215-46</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Cioabla]]></surname>
<given-names><![CDATA[A.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Ionel]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Trif-Tordai]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Irimescu]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Vetres]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Study on the quality of biogas obtained from agricultural residues during anaerobic fermentation]]></article-title>
<source><![CDATA[J. Environ. Prot. Ecol.]]></source>
<year>2013</year>
<volume>14</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>247-55</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[del Razo]]></surname>
<given-names><![CDATA[O.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Almaraz]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Espinosa]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Soriano]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Miranda]]></surname>
<given-names><![CDATA[L.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Arias]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Guan]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Buendía]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Peláez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparative analysis of the in vitro fermentation of wasted cladodes (Opuntia spp.), lucerne and oat hays]]></article-title>
<source><![CDATA[S. Afr. J. Anim. Sci.]]></source>
<year>2015</year>
<volume>45</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>470-5</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[di Maria]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
<name>
<surname><![CDATA[Sordi]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Cirulli]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Micale]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Amount of energy recoverable from an existing sludge digester with the co-digestion with fruit and vegetable waste at reduced retention time]]></article-title>
<source><![CDATA[Appl. Energ.]]></source>
<year>2015</year>
<volume>150</volume>
<page-range>9-14</page-range></nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Eriksson]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Strid]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Hansson]]></surname>
<given-names><![CDATA[P.A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Carbon footprint of food waste management options in the waste hierarchy - a Swedish case study]]></article-title>
<source><![CDATA[J. Clean. Prod.]]></source>
<year>2015</year>
<volume>93</volume>
<page-range>115-25</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<collab>FAO</collab>
<article-title xml:lang=""><![CDATA[Pérdidas y desperdicios de alimentos en América Latina y el Caribe]]></article-title>
<source><![CDATA[Oficina regional de las Naciones Unidas para la Alimentación y la Agricultura para América Latina y el Caribe. Food and Agriculture Organization, Santiago de Chile]]></source>
<year>2015</year>
<edition>Boletín 2</edition>
<page-range>30</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Islas-Espinoza]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[de las Heras]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Vázquez-Chagoyán]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Salem]]></surname>
<given-names><![CDATA[A.Z.M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Anaerobic cometabolism of fruit and vegetable wastes using mammalian fecal inoculums: fast assessment of biomethane production]]></article-title>
<source><![CDATA[J. Clean. Prod.]]></source>
<year>2017</year>
<volume>141</volume>
<page-range>1411-8</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Li]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[L.L.R.]]></given-names>
</name>
<name>
<surname><![CDATA[Sun]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A review of methane production from agricultural residues in China]]></article-title>
<source><![CDATA[Renew. Sust. Energ. Rev.]]></source>
<year>2016</year>
<volume>54</volume>
<page-range>857-65</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Losada]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Martínez]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Vieyra]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Pealing]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Zavala]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Urban agriculture in the metropolitan zone of Mexico City: Changes over time in urban, suburban and peri-urban areas]]></article-title>
<source><![CDATA[Environ. Urban.]]></source>
<year>1998</year>
<volume>10</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>37-54</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Losada]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Bennett]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Soriano]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Vieyra]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Cortés]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Urban agriculture in Mexico City: functions provided by the use for dairy based livelihoods]]></article-title>
<source><![CDATA[Cities]]></source>
<year>2000</year>
<volume>17</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>419-31</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pinos-Rodríguez]]></surname>
<given-names><![CDATA[J.M.]]></given-names>
</name>
<name>
<surname><![CDATA[Velázquez]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<name>
<surname><![CDATA[González]]></surname>
<given-names><![CDATA[S.S.]]></given-names>
</name>
<name>
<surname><![CDATA[Aguirre]]></surname>
<given-names><![CDATA[J.R.]]></given-names>
</name>
<name>
<surname><![CDATA[García]]></surname>
<given-names><![CDATA[J.C.]]></given-names>
</name>
<name>
<surname><![CDATA[Álvarez]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Jasso]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Effects of cladode age on biomass yield and nutritional value of intensively produced spineless cactus for ruminants]]></article-title>
<source><![CDATA[S. Afr. J. Anim. Sci.]]></source>
<year>2010</year>
<volume>40</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>245-50</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="book">
<collab>SAS</collab>
<source><![CDATA[Statistical analysis software, v. 9.1.3]]></source>
<year>2003</year>
<publisher-loc><![CDATA[Cary, NC., EUA ]]></publisher-loc>
<publisher-name><![CDATA[SAS Institute]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sánchez-Reyes]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Patiño-Iglesias]]></surname>
<given-names><![CDATA[M.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Alcántara-Flores]]></surname>
<given-names><![CDATA[M.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Reyes-Ortega]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Pérez-Cruz]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortíz-Muñoz]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Determinación del potencial bioquímico de metano (PBM) de residuos de frutas y verduras en hogares]]></article-title>
<source><![CDATA[Rev. Int. Contam. Ambie.]]></source>
<year>2016</year>
<volume>32</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>191-8</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sauer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Marx]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Mattanovich]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[From rumen to industry]]></article-title>
<source><![CDATA[Microb. Cell Fact.]]></source>
<year>2012</year>
<volume>11</volume>
<numero>121</numero>
<issue>121</issue>
</nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Scano]]></surname>
<given-names><![CDATA[E.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Asquer]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Pistis]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ortu]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Demontis]]></surname>
<given-names><![CDATA[V.]]></given-names>
</name>
<name>
<surname><![CDATA[Cocco]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biogas from anaerobic digestion of fruit and vegetable wastes: Experimental results on pilot-scale and preliminary performance evaluation of a full-scale power plant]]></article-title>
<source><![CDATA[Energ. Convers. Manage.]]></source>
<year>2014</year>
<volume>77</volume>
<page-range>22-30</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Schofield]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Pitt]]></surname>
<given-names><![CDATA[R.E.]]></given-names>
</name>
<name>
<surname><![CDATA[Pell]]></surname>
<given-names><![CDATA[A.N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Kinetics of digestion from in vitro gas production]]></article-title>
<source><![CDATA[J. Anim. Sci.]]></source>
<year>1994</year>
<volume>72</volume>
<page-range>2980-91</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<collab>SEDEMA</collab>
<article-title xml:lang=""><![CDATA[Inventario de residuos sólidos. Ciudad de México 2015]]></article-title>
<source><![CDATA[Secretaría del Medio Ambiente del Gobierno de la Ciudad de México]]></source>
<year>2015</year>
<page-range>114</page-range><publisher-loc><![CDATA[Ciudad de México ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sen]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Aravind]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Kanmani]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Lay]]></surname>
<given-names><![CDATA[C.-H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[State of the art and future concept of waste fermentation to bioenergy]]></article-title>
<source><![CDATA[Renew. Sust. Energ. Rev.]]></source>
<year>2016</year>
<volume>53</volume>
<page-range>547-57</page-range></nlm-citation>
</ref>
<ref id="B20">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Theodorou]]></surname>
<given-names><![CDATA[M.K.]]></given-names>
</name>
<name>
<surname><![CDATA[Williams]]></surname>
<given-names><![CDATA[B.A.]]></given-names>
</name>
<name>
<surname><![CDATA[Dhanoa]]></surname>
<given-names><![CDATA[M.S.]]></given-names>
</name>
<name>
<surname><![CDATA[McAllan]]></surname>
<given-names><![CDATA[A.B.]]></given-names>
</name>
<name>
<surname><![CDATA[France]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A simple gas production method using a pressure transducer to determine the fermentation kinetics of ruminant feeds]]></article-title>
<source><![CDATA[Anim. Feed Sci. Technol.]]></source>
<year>1994</year>
<volume>48</volume>
<page-range>185-97</page-range></nlm-citation>
</ref>
<ref id="B21">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Thi]]></surname>
<given-names><![CDATA[B.D.]]></given-names>
</name>
<name>
<surname><![CDATA[Biswarup]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Chin-Chao]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Gopalakrishnan]]></surname>
<given-names><![CDATA[K.]]></given-names>
</name>
<name>
<surname><![CDATA[Chiu-Yue]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Food waste to bioenergy via anaerobic processes]]></article-title>
<source><![CDATA[Energy Proceed.]]></source>
<year>2014</year>
<volume>61</volume>
<page-range>307-12</page-range></nlm-citation>
</ref>
<ref id="B22">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Yan]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhao]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhang]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<name>
<surname><![CDATA[Xue]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Study on biomethane production and biodegradability of different leafy vegetables in anaerobic digestion]]></article-title>
<source><![CDATA[AMB Express]]></source>
<year>2017</year>
<volume>7</volume>
<numero>27</numero>
<issue>27</issue>
</nlm-citation>
</ref>
<ref id="B23">
<nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zebek]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
<name>
<surname><![CDATA[Szwejkowska]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Raczkowski]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Legal and organisational solutions of municipal waste management in Poland in compliance with waste directive 2008/98/EC]]></article-title>
<source><![CDATA[J. Environ. Prot. Ecol.]]></source>
<year>2015</year>
<volume>16</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>652-8</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
