<?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>2007-0934</journal-id>
<journal-title><![CDATA[Revista mexicana de ciencias agrícolas]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. Mex. Cienc. Agríc]]></abbrev-journal-title>
<issn>2007-0934</issn>
<publisher>
<publisher-name><![CDATA[Instituto Nacional de Investigaciones Forestales, Agrícolas y Pecuarias]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S2007-09342016000100031</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Aislamiento y caracterización de celulosas obtenidas de fibras de Agave salmiana aplicando dos métodos de extracción ácido-alcali]]></article-title>
<article-title xml:lang="en"><![CDATA[Isolation and characterization of cellulose obtained from Agave salmiana fibers using two acid-alkali extraction methods]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Naranjo]]></surname>
<given-names><![CDATA[Cuauhtémoc De Dios]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alamilla-Beltrán]]></surname>
<given-names><![CDATA[Liliana]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Gutiérrez-Lopez]]></surname>
<given-names><![CDATA[Gustavo F.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Terres-Rojas]]></surname>
<given-names><![CDATA[Eduardo]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Solorza-Feria]]></surname>
<given-names><![CDATA[Javier]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Romero-Vargas]]></surname>
<given-names><![CDATA[Sofía]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Yee-Madeira]]></surname>
<given-names><![CDATA[Hernani T.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Flores-Morales]]></surname>
<given-names><![CDATA[Areli]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Mora-Escobedo]]></surname>
<given-names><![CDATA[Rosalva]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,IPN  ]]></institution>
<addr-line><![CDATA[ D. F.]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Instituto Mexicano del Petróleo  ]]></institution>
<addr-line><![CDATA[ D. F.]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,IPN  ]]></institution>
<addr-line><![CDATA[ Morelos]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af4">
<institution><![CDATA[,IPN  ]]></institution>
<addr-line><![CDATA[ D. F.]]></addr-line>
<country>Mexico</country>
</aff>
<aff id="Af5">
<institution><![CDATA[,Instituto Tecnológico del Altiplano de Tlaxcala  ]]></institution>
<addr-line><![CDATA[Tlaxcala Tlaxcala]]></addr-line>
<country>Mexico</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>02</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>02</month>
<year>2016</year>
</pub-date>
<volume>7</volume>
<numero>1</numero>
<fpage>31</fpage>
<lpage>43</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_arttext&amp;pid=S2007-09342016000100031&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_abstract&amp;pid=S2007-09342016000100031&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.mx/scielo.php?script=sci_pdf&amp;pid=S2007-09342016000100031&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen Para aprovechar las pencas de agaves (A. salmiana) una vez que se retiran de la piña de la planta, se obtuvieron fibras. Las hojas fueron tratadas con hidrólisis ácida (HCl) e hidrólisis alcalina (NaOH), usando presión de 1.1 kg/cm2 (FACT ácido- álcali con presión), a 121 °C por 4 h y otro tratamiento a presión atmosférica con reflujo (FACT ácido-álcali sin presión). Se determinó el porcentaje de celulosa y lignina, así como los cambios fisicoquímicos por medio de calorimetría diferencial de barrido (DSC), termogravimetría (TG), Difracción de rayos X (DRX), Espectroscopia infrarroja (IR) y Microscopia electrónica de barrido ambiental (MEB). El mayor contenido de celulosa (79.95%) se obtuvo para el tratamiento FACT ácido-álcali sin presión, presentando también una mayor cristalinidad (50.07). La microestructura mostró que el tratamiento FACT ácido-álcali con presión mostró más espacios vacíos, esto debido a la degradación de las fibras, lo cual se asocia a una pérdida de celulosa. Ambos tratamientos afectaron la estructura y composición de las fibras de agave.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract Fibers were obtained in order to make use of the agave leaves (A. salmiana) once the heart of the plant was removed. The leaves were treated with acid hydrolysis (HCl) and alkaline hydrolysis (NaOH), using a pressure of 1.1 kg/ cm2 (acid-alkali TAF with pressure). The percentage of cellulose and lignin was determined, as well as the physicochemical changes through Differential Scanning Calorimetry (DSC), Thermogravimetric Analysis (TGA), X-ray Diffraction (XRD), Infrared Spectroscopy (IR) and Environmental Scanning Electron Microscopy (ESEM). The highest cellulose content (79.95%) was obtained from the acid-alkali TAF treatment without pressure, presenting a higher crystallinity as well (50.07). The microstructure showed that the acid-alkali TAF treatment with pressure presented more empty spaces, this due to the degradation of the fibers which is associated with cellulose loss. Both treatments affected the structure and composition of the agave fibers.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[celulosa]]></kwd>
<kwd lng="es"><![CDATA[fibras de agave]]></kwd>
<kwd lng="es"><![CDATA[lignina]]></kwd>
<kwd lng="es"><![CDATA[tratamiento ácido-base sin presión]]></kwd>
<kwd lng="es"><![CDATA[tratamiento ácido-base con presión]]></kwd>
<kwd lng="en"><![CDATA[acid-base treatment with pressure]]></kwd>
<kwd lng="en"><![CDATA[acid-base treatment without pressure]]></kwd>
<kwd lng="en"><![CDATA[agave fibers]]></kwd>
<kwd lng="en"><![CDATA[cellulose]]></kwd>
<kwd lng="en"><![CDATA[lignin]]></kwd>
</kwd-group>
</article-meta>
</front><back>
<ref-list>
<ref id="B1">
<nlm-citation citation-type="book">
<collab>AOAC international</collab>
<source><![CDATA[Official Methods of Analysis of A. O. A. C. international]]></source>
<year>1995</year>
<edition>16</edition>
<publisher-loc><![CDATA[Arlintong, Virginia, E. U. A. ]]></publisher-loc>
<publisher-name><![CDATA[A. O. A. C.]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B2">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Obtención y caracterización de materiales compuestos de las fibras de henequén y polipropileno]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Balam]]></surname>
<given-names><![CDATA[C. R. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Duarte]]></surname>
<given-names><![CDATA[A. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Canché]]></surname>
<given-names><![CDATA[E. G.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev. Mex. Ing. Quím.]]></source>
<year>2006</year>
<volume>5</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>39-44</page-range></nlm-citation>
</ref>
<ref id="B3">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Morphological and crystalline characterization of NaOH and NaOCl treated Agave Americana L. fiber]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ben Sghaier]]></surname>
<given-names><![CDATA[A. E. O.]]></given-names>
</name>
<name>
<surname><![CDATA[Chaabouni]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Msahli]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Sakli]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Industrial Crops and Products]]></source>
<year>2012</year>
<volume>36</volume>
<page-range>257-66</page-range></nlm-citation>
</ref>
<ref id="B4">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Influence of chemical modifications on water-sorption and mechanical properties of Agave fibres]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Bessadok]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Marais]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Roudesli]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Lixon]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Métayer]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Composites: Part A]]></source>
<year>2008</year>
<volume>39</volume>
<page-range>29-45</page-range></nlm-citation>
</ref>
<ref id="B5">
<nlm-citation citation-type="book">
<collab>CEN/TC 327</collab>
<source><![CDATA[Animal feeding stuffs- determination of acid detergent fiber (ADF) and acid detergent lignin (ADL) contents]]></source>
<year>2009</year>
<publisher-name><![CDATA[European Committee for Standardization (CEN)]]></publisher-name>
</nlm-citation>
</ref>
<ref id="B6">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Crystal transition from cellulose I to cellulose II in NaOH treated Agave americana L. fibre]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[El Oudiani]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Chaabouni]]></surname>
<given-names><![CDATA[Y.]]></given-names>
</name>
<name>
<surname><![CDATA[Msahli]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<name>
<surname><![CDATA[Sakli]]></surname>
<given-names><![CDATA[F.]]></given-names>
</name>
</person-group>
<source><![CDATA[Carbohydrate Polymers]]></source>
<year>2011</year>
<volume>86</volume>
<page-range>1221-9</page-range></nlm-citation>
</ref>
<ref id="B7">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Thermal properties of agave fructans (Agave tequilana Weber var. Azul)]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Espinosa-Andrews]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<name>
<surname><![CDATA[Urias-Silvas]]></surname>
<given-names><![CDATA[J. E.]]></given-names>
</name>
</person-group>
<source><![CDATA[Carbohydrate Polymers]]></source>
<year>2012</year>
<volume>87</volume>
<page-range>2671-6</page-range></nlm-citation>
</ref>
<ref id="B8">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Thermal degradation of flax and jute fibers]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Gassan]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Bledzki]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Applied. Polymer Science. Journal]]></source>
<year>2001</year>
<volume>82</volume>
<numero>6</numero>
<issue>6</issue>
<page-range>1417-22</page-range></nlm-citation>
</ref>
<ref id="B9">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Extraction, preparation and characterization of cellulose fibres and nanocrystals from rice husk]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Johar]]></surname>
<given-names><![CDATA[N.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmada]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Dufresnec]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Industrial Crops and Products]]></source>
<year>2012</year>
<volume>37</volume>
<page-range>93- 99</page-range></nlm-citation>
</ref>
<ref id="B10">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Characterization of blue agave bagasse fibers of Mexico]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kestur]]></surname>
<given-names><![CDATA[G. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Flores-Sahagún]]></surname>
<given-names><![CDATA[T. H. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Pereira Dos Santos]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Dos Santos]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Mazzaroc]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Mikowski]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<source><![CDATA[Composites: Part A]]></source>
<year>2013</year>
<volume>45</volume>
<page-range>153-61</page-range></nlm-citation>
</ref>
<ref id="B11">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Cellulose oxidative and hydrolysis degradation In: situ FTIR approach]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Lojewska]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Miskowiec]]></surname>
<given-names><![CDATA[P.]]></given-names>
</name>
<name>
<surname><![CDATA[Lojewski]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Pronewicz]]></surname>
<given-names><![CDATA[L. M.]]></given-names>
</name>
</person-group>
<source><![CDATA[Polymer Degradation and Stability]]></source>
<year>2005</year>
<volume>88</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>512-20</page-range></nlm-citation>
</ref>
<ref id="B12">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Ethanol yield and volatile compound content in fermentation of agave must by Kluyveromyces marxianus UMPe-1 comparing with Saccharomyces cerevisiae baker's yeast used in tequila production]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[López-Álvarez]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
<name>
<surname><![CDATA[Díaz-Pérez]]></surname>
<given-names><![CDATA[A. L.]]></given-names>
</name>
<name>
<surname><![CDATA[Sosa-Aguirre]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
<name>
<surname><![CDATA[Macías- Rodríguez]]></surname>
<given-names><![CDATA[L.]]></given-names>
</name>
<name>
<surname><![CDATA[Campos-García]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Bios. Bioeng.]]></source>
<year>2012</year>
<volume>113</volume>
<page-range>614-8</page-range></nlm-citation>
</ref>
<ref id="B13">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Isolation and characterization of Cellulose nanocrystals from A. angustifolia Fibre]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Rosli]]></surname>
<given-names><![CDATA[N. A.]]></given-names>
</name>
<name>
<surname><![CDATA[Ahmad]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
<name>
<surname><![CDATA[Abdullah]]></surname>
<given-names><![CDATA[I.]]></given-names>
</name>
</person-group>
<source><![CDATA[Carbohydrate Polymers]]></source>
<year>2013</year>
<volume>86</volume>
<page-range>1221-9</page-range></nlm-citation>
</ref>
<ref id="B14">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Bioprocess preparation of wheat straw fibres and their characterization]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Sain]]></surname>
<given-names><![CDATA[M.]]></given-names>
</name>
<name>
<surname><![CDATA[Panthapulakkal]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
</person-group>
<source><![CDATA[Industrial Crops and Products]]></source>
<year>2006</year>
<volume>23</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>1-8</page-range></nlm-citation>
</ref>
<ref id="B15">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Optimization of acid hydrolysis of bagasse from Agave tequilana Weber]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Saucedo]]></surname>
<given-names><![CDATA[L. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Castro]]></surname>
<given-names><![CDATA[M. A. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Rico]]></surname>
<given-names><![CDATA[J. L.]]></given-names>
</name>
</person-group>
<source><![CDATA[Rev. Mex. Ing. Quím.]]></source>
<year>2010</year>
<volume>9</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>91-7</page-range></nlm-citation>
</ref>
<ref id="B16">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Graft copolimerization of methyl methacrylate (MMA) onto Agave Americana fibers and evaluation of their physicochemical properties]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Singha]]></surname>
<given-names><![CDATA[A. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Rana]]></surname>
<given-names><![CDATA[R. K.]]></given-names>
</name>
</person-group>
<source><![CDATA[International J. f Pol. Analyt. Charact.]]></source>
<year>2010</year>
<volume>15</volume>
<page-range>27-42</page-range></nlm-citation>
</ref>
<ref id="B17">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[A review of bast fibres and their composition. Part 1. - Fibres as reinforcements]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Summerscales]]></surname>
<given-names><![CDATA[J.]]></given-names>
</name>
<name>
<surname><![CDATA[Nayake]]></surname>
<given-names><![CDATA[N. P. J.]]></given-names>
</name>
<name>
<surname><![CDATA[Virk]]></surname>
<given-names><![CDATA[A. S.]]></given-names>
</name>
<name>
<surname><![CDATA[Hall]]></surname>
<given-names><![CDATA[W.]]></given-names>
</name>
</person-group>
<source><![CDATA[Composites. Part A]]></source>
<year>2010</year>
<volume>41</volume>
<page-range>1329-35</page-range></nlm-citation>
</ref>
<ref id="B18">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Influence of fibre extraction method, alkali and silane treatment on the interface of Agave americana waste HDPE composites as possible roof ceilings in Lesotho]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Tamahe]]></surname>
<given-names><![CDATA[T.]]></given-names>
</name>
<name>
<surname><![CDATA[Baillie]]></surname>
<given-names><![CDATA[C.]]></given-names>
</name>
</person-group>
<source><![CDATA[Composite Interfaces]]></source>
<year>2007</year>
<volume>14</volume>
<numero>7-9</numero>
<issue>7-9</issue>
<page-range>821-36</page-range></nlm-citation>
</ref>
<ref id="B19">
<nlm-citation citation-type="journal">
<article-title xml:lang=""><![CDATA[Fruit juice assay, rapid colorimetric methods for simultaneous determination of total reducing sugars and fructose in citrus juices]]></article-title>
<person-group person-group-type="author">
<name>
<surname><![CDATA[Ting]]></surname>
<given-names><![CDATA[S. V.]]></given-names>
</name>
</person-group>
<source><![CDATA[J. Agric. Food Chem.]]></source>
<year>1956</year>
<volume>4</volume>
<numero>3</numero>
<issue>3</issue>
<page-range>263-6</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
