<?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>0379-3982</journal-id>
<journal-title><![CDATA[Revista Tecnología en Marcha]]></journal-title>
<abbrev-journal-title><![CDATA[Tecnología en Marcha]]></abbrev-journal-title>
<issn>0379-3982</issn>
<publisher>
<publisher-name><![CDATA[Instituto Tecnológico de Costa Rica]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0379-39822017000300106</article-id>
<article-id pub-id-type="doi">10.18845/tm.v30i3.3277</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Producción de Hidrógeno a partir de la fermentación de residuos agroindustriales de la piña]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Montoya-Pérez]]></surname>
<given-names><![CDATA[Luisa]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Durán-Herrera]]></surname>
<given-names><![CDATA[J.Esteban]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad de Costa Rica  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Costa Rica</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2017</year>
</pub-date>
<volume>30</volume>
<numero>3</numero>
<fpage>106</fpage>
<lpage>118</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_arttext&amp;pid=S0379-39822017000300106&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_abstract&amp;pid=S0379-39822017000300106&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.sa.cr/scielo.php?script=sci_pdf&amp;pid=S0379-39822017000300106&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Se estudió la generación de hidrógeno a partir de la fermentación anaeróbica de residuos agroindustriales de corazón de piña utilizando como inóculo lodos pretratados provenientes de una planta de tratamiento de agua residual del tipo UASB. Mediante un diseño factorial 23, se determinaron los efectos de la concentración inicial de sustrato, del pH inicial del medio de fermentación y de la formulación de nutrientes, sobre el rendimiento en la producción de hidrógeno. Los mejores resultados se obtuvieron utilizando un pH inicial de 5,5, con una concentración inicial de sustrato de 5 (g de glucosa)/L y usando una formulación de nutrientes basada en magnesio, hierro, zinc y sodio. Posteriormente, utilizando las condiciones de operación anteriores, se realizó un escalamiento de la fermentación en un bioreactor de 5 L y se alcanzó un rendimiento máximo en la producción de hidrógeno de 1,541 (mol H2)/(mol glucosa). Este rendimiento es comparable con datos reportados en la literatura cuando se ha usado glucosa como sustrato. Los resultados obtenidos sugieren que los residuos de corazón de piña podrían ser utilizados como una fuente renovable para la producción de hidrógeno.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Hydrogen production from the fermentation of pineapple core wastes was studied using pretreated sludge from a local UASB wastewater treatment plant as inoculum. Applying a 23 factorial design, the effects of initial substrate concentration, initial fermentation medium pH, and type of nutrient formulation on H2 production were studied. The best results were obtained at pH of 5,5, with a substrate concentration of 5 (g glucose)/L, and using a nutrient formulation based on magnesium, iron, zinc, and sodium. Then, utilizing the previous operating conditions, the fermentation was scaled up to a 5 L bioreactor and a maximum yield of 1,541 (mol H2)/(mol glucose) was achieved. This hydrogen yield is comparable with others reported in the literature when glucose was used as substrate. These results suggest that pineapple core wastes could be used as a renewable source for hydrogen production.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Producción de hidrógeno]]></kwd>
<kwd lng="es"><![CDATA[fermentación anaeróbica]]></kwd>
<kwd lng="es"><![CDATA[residuos agroindustriales]]></kwd>
<kwd lng="es"><![CDATA[corazón de piña]]></kwd>
<kwd lng="es"><![CDATA[biohidrógeno]]></kwd>
<kwd lng="en"><![CDATA[Hydrogen production]]></kwd>
<kwd lng="en"><![CDATA[anaerobic fermentation]]></kwd>
<kwd lng="en"><![CDATA[pineapple wastes]]></kwd>
<kwd lng="en"><![CDATA[biohydrogen]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<label>[1]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Balat]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Kirtay]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hydrogen from biomass - Present scenario and future prospects]]></article-title>
<source><![CDATA[Int. J. Hydrogen Energy]]></source>
<year>2010</year>
<volume>35</volume>
<page-range>7416-26</page-range></nlm-citation>
</ref>
<ref id="B2">
<label>[2]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kalamaras]]></surname>
<given-names><![CDATA[C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Efstathiou]]></surname>
<given-names><![CDATA[A. M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hydrogen Production Technologies: Current State and Future Developments]]></article-title>
<source><![CDATA[Conf. Papers in Energy]]></source>
<year>2013</year>
<volume>2013</volume>
</nlm-citation>
</ref>
<ref id="B3">
<label>[3]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manish]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Banerjee]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Comparison of biohydrogen production processes]]></article-title>
<source><![CDATA[Int. J. Hydrogen Energy]]></source>
<year>2008</year>
<volume>33</volume>
<page-range>279-86</page-range></nlm-citation>
</ref>
<ref id="B4">
<label>[4]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Davila]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Arriaga]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rosales]]></surname>
<given-names><![CDATA[L. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Razo]]></surname>
<given-names><![CDATA[E.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fermentative biohydrogen production: trends and perspectives]]></article-title>
<source><![CDATA[Rev. Env. Sci. and Biotech.]]></source>
<year>2008</year>
<volume>7</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>27-45</page-range></nlm-citation>
</ref>
<ref id="B5">
<label>[5]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Wang]]></surname>
<given-names><![CDATA[C. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Lin]]></surname>
<given-names><![CDATA[P. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[J. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fermentative conversion of sucrose and pineapple waste into hydrogen gas in phosphate-buffered culture seeded with municipal sewage sludge]]></article-title>
<source><![CDATA[Process Biochemistry]]></source>
<year>2006</year>
<volume>41</volume>
<page-range>1353-8</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>[6]</label><nlm-citation citation-type="">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Moya]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Producción y aprovechamiento de desechos agroindustriales en América Latina]]></article-title>
<source><![CDATA[Development of environmentally compatible polymers from biowaste]]></source>
<year>2001</year>
<page-range>76-83</page-range><publisher-loc><![CDATA[Heredia, Costa Rica ]]></publisher-loc>
</nlm-citation>
</ref>
<ref id="B7">
<label>[7]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bolaños]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
<name>
<surname><![CDATA[Hermosilla]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[El amargo sabor de la expansión piñera]]></article-title>
<source><![CDATA[Cuaderno de Educación Popular]]></source>
<year>2005</year>
<publisher-loc><![CDATA[Limón, Costa Rica ]]></publisher-loc>
<publisher-name><![CDATA[Pastoral Social, Diócesis de Limón]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B8">
<label>[8]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Woo]]></surname>
<given-names><![CDATA[J. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Song]]></surname>
<given-names><![CDATA[Y. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Influence of temperature and duration of heat treatment used for anaerobic seed sludge on biohydrogen fermentation]]></article-title>
<source><![CDATA[KSCE J. of Civil Eng.]]></source>
<year>2010</year>
<volume>14</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>141-7</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>[9]</label><nlm-citation citation-type="book">
<collab>APHA</collab>
<source><![CDATA[Standard Methods for the Examination of Water and Wastewater]]></source>
<year>1999</year>
<publisher-loc><![CDATA[Washington, DC ]]></publisher-loc>
<publisher-name><![CDATA[American Public Health Association]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B10">
<label>[10]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pan]]></surname>
<given-names><![CDATA[C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Fan]]></surname>
<given-names><![CDATA[Y. T.]]></given-names>
</name>
<name>
<surname><![CDATA[Zhao]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Hou]]></surname>
<given-names><![CDATA[H. W.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fermentative hydrogen production by the newly isolated Clostridium Beijerinckii Fanp3]]></article-title>
<source><![CDATA[Int. J. Hydrogen Energy]]></source>
<year>2008</year>
<volume>33</volume>
<page-range>5383-91</page-range></nlm-citation>
</ref>
<ref id="B11">
<label>[11]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lin]]></surname>
<given-names><![CDATA[C. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Lay]]></surname>
<given-names><![CDATA[C. H.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A nutrient formulation for fermentative hydrogen production using anaerobic sewage sludge microflora]]></article-title>
<source><![CDATA[Int. J. Hydrogen Energy]]></source>
<year>2005</year>
<volume>30</volume>
<page-range>285-92</page-range></nlm-citation>
</ref>
<ref id="B12">
<label>[12]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Buitrón]]></surname>
<given-names><![CDATA[G.]]></given-names>
</name>
<name>
<surname><![CDATA[Carvajal]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Producción de hidrógeno a partir de aguas residuales]]></article-title>
<source><![CDATA[Rev. Digital Univ. UNAM]]></source>
<year>2009</year>
<volume>10</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>18-23</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>[13]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Amador]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Evaluación del efecto del tamaño de partícula, tiempo de pretratamiento y concentración de hidróxido de sodio en la hidrólisis enzimática del bagazo de caña de azúcar]]></source>
<year>2009</year>
<publisher-loc><![CDATA[San José, Costa Rica ]]></publisher-loc>
<publisher-name><![CDATA[Universidad Costa Rica]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B14">
<label>[14]</label><nlm-citation citation-type="book">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sherif]]></surname>
<given-names><![CDATA[S. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Goswami]]></surname>
<given-names><![CDATA[D. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Stefanokos]]></surname>
<given-names><![CDATA[E. K.]]></given-names>
</name>
<name>
<surname><![CDATA[Steinfeld]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Handbook of Hydrogen Energy]]></source>
<year>2014</year>
<publisher-loc><![CDATA[Boca Raton, Florida, USA ]]></publisher-loc>
<publisher-name><![CDATA[CRC Press]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B15">
<label>[15]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lo]]></surname>
<given-names><![CDATA[Y. C.]]></given-names>
</name>
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[C. Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[C. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[J. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Sequential dark-photo fermentation and autotrophic microalgal growth for high-yield and CO2-free biohydrogen production]]></article-title>
<source><![CDATA[Int. J. Hydrogen Energy]]></source>
<year>2010</year>
<volume>35</volume>
<page-range>10944-54</page-range></nlm-citation>
</ref>
<ref id="B16">
<label>[16]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Chen]]></surname>
<given-names><![CDATA[W. M.]]></given-names>
</name>
<name>
<surname><![CDATA[Tseng]]></surname>
<given-names><![CDATA[Z. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Lee]]></surname>
<given-names><![CDATA[K. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Chang]]></surname>
<given-names><![CDATA[J. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Fermentative hydrogen production with Clostridium butyricum CGS5 isolated from anaerobic sewage sludge]]></article-title>
<source><![CDATA[Int. J. Hydrogen Energy]]></source>
<year>2005</year>
<volume>30</volume>
<numero>10</numero>
<issue>10</issue>
<page-range>1063-70</page-range></nlm-citation>
</ref>
<ref id="B17">
<label>[17]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jung]]></surname>
<given-names><![CDATA[K. W.]]></given-names>
</name>
<name>
<surname><![CDATA[Kim]]></surname>
<given-names><![CDATA[D. H.]]></given-names>
</name>
<name>
<surname><![CDATA[Shin]]></surname>
<given-names><![CDATA[H. S.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Continuous fermentative hydrogen production from coffee drink manufacturing wastewater by applying UASB reactor]]></article-title>
<source><![CDATA[Int. J. Hydrogen Energy]]></source>
<year>2010</year>
<volume>35</volume>
<numero>24</numero>
<issue>24</issue>
<page-range>13370-8</page-range></nlm-citation>
</ref>
<ref id="B18">
<label>[18]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Zhao]]></surname>
<given-names><![CDATA[X.]]></given-names>
</name>
<name>
<surname><![CDATA[Xing]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Fu]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Liu]]></surname>
<given-names><![CDATA[B.]]></given-names>
</name>
<name>
<surname><![CDATA[Ren]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Hydrogen production by the newly isolated Clostridium beijerinckii RZF-1108]]></article-title>
<source><![CDATA[Bioresour. Technol.]]></source>
<year>2011</year>
<volume>102</volume>
<numero>18</numero>
<issue>18</issue>
<page-range>8432-6</page-range></nlm-citation>
</ref>
<ref id="B19">
<label>[19]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Reungsang]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Sreela-or]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Bio-Hydrogen Production from Pineapple Waste Extract by Anaerobic Mixed Cultures]]></article-title>
<source><![CDATA[Energies]]></source>
<year>2013</year>
<volume>6</volume>
<page-range>2175-90</page-range></nlm-citation>
</ref>
<ref id="B20">
<label>[20]</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Jiang]]></surname>
<given-names><![CDATA[D.]]></given-names>
</name>
<name>
<surname><![CDATA[Fang]]></surname>
<given-names><![CDATA[Z.]]></given-names>
</name>
<name>
<surname><![CDATA[Chin]]></surname>
<given-names><![CDATA[S. X.]]></given-names>
</name>
<name>
<surname><![CDATA[Tian]]></surname>
<given-names><![CDATA[X. F.]]></given-names>
</name>
<name>
<surname><![CDATA[Su]]></surname>
<given-names><![CDATA[T. C.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Biohydrogen Production from Hydrolysates of Selected Tropical Biomass Wastes with Clostridium Butyricum]]></article-title>
<source><![CDATA[Scientific Reports]]></source>
<year>2016</year>
<volume>6</volume>
</nlm-citation>
</ref>
</ref-list>
</back>
</article>
