<?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>0121-1935</journal-id>
<journal-title><![CDATA[Revista de Ciencias]]></journal-title>
<abbrev-journal-title><![CDATA[rev. cienc.]]></abbrev-journal-title>
<issn>0121-1935</issn>
<publisher>
<publisher-name><![CDATA[Universidad del Valle]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-19352017000200011</article-id>
<article-id pub-id-type="doi">10.25100/rc.v21i2.6696</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Encapsulation of the Piperine Present in Piper tuberculatum Species Using Multilamellar Vesicles and Determination of its Antioxidant Power]]></article-title>
<article-title xml:lang="es"><![CDATA[Encapsulación de la piperine presente en la especie Piper tuberculatum utilizando vesículas multilamelares y determinación de su poder antioxidante]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Reyes Solís]]></surname>
<given-names><![CDATA[Lina M.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[Rubén A.]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Restrepo]]></surname>
<given-names><![CDATA[Jaime]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad del Valle Departamento de Química ]]></institution>
<addr-line><![CDATA[Cali ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>12</month>
<year>2017</year>
</pub-date>
<volume>21</volume>
<numero>2</numero>
<fpage>11</fpage>
<lpage>28</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-19352017000200011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-19352017000200011&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-19352017000200011&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract The piperine is an alkaloid present in the vegetal species pipilongo (Piper tuberculatum). Antioxidant properties are associated to this plant. It was encapsulated in multilamellar vesicles (MLV). For that, the validation of the extraction methodology through calibration curves of standard piperine by high resolution liquid chromatography (HPLC) was performed, using a column of C18, mobile phase MetOH: H2O (70:30) and detected by UV to 340nm with a fluency rate of 0.7 mL/ min. The lineal and non-lineal ranges were found between 1 and 300 ppm, with R2 of 0.995. During the extraction of the pipilongo fruit, the effect of two factors, solvents and ultrasound power, was studied, for the optimization of conditions and higher extraction of piperine in pipilongo. The maximum concentration of piperine (246.50 ppm) was found, using ethanol as extraction solvent. The piperine was isolated from its extract, using a solution of KOH with 10 % ethanol. It was purified and characterized by melting point, IR, GC-MS y RMN 1H. Once the extract was obtained, it was proceeded to the formation of liposomes. The phosphatidylcholine and cholesterol vesicles were prepared with extract and with piperine at different concentrations and hydrated with buffer pH 7.40. The average size of the particles formed, measured by dynamic light scattering (DLS), was in a range of 299.7-531.9 nm. For the study of antioxidant activity, a solution of DPPH 0.2 mM was prepared and a reaction was carried out with the extract and piperine liposomes and their corresponding free forms. The IC50 calculated for the extract and piperine were 2.8±0.2 and 21333±1499 ppm, respectively. These values of IC50 were compared against a standard of reference Quercetin, prepared under the same conditions. The test with DPPH showed that the released form possesses greater antioxidant activity while in encapsulation form, it attenuates and stabilizes this capacity.]]></p></abstract>
<abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen La piperina, alcaloide presente en la especie vegetal pipilongo (Piper tuberculatum) a la cual se le asocian propiedades antioxidantes, fue encapsulada en vesículas multilamelares (MLV). Para ello se realizó la validación de la metodología de extracción a través de curvas de calibración de piperina estándar por cromatografía líquida de alta resolución (HPLC) utilizando una columna C18, fase móvil MetOH:H2O (70:30) y detectada por UV a 340 nm con una tasa de flujo de 0.7 mL/min. El rango lineal y linealidad fueron halladas entre 1 a 300 ppm, con R2 de 0.995. En la extracción del fruto de pipilongo se estudió el efecto de dos factores, disolventes y potencia de ultrasonido, para la optimización de condiciones y mayor extracción de piperina en pipilongo. La máxima concentración de piperina (246.50 ppm) fue encontrada en las condiciones de ultrasonido (US 20 KHz a 175W, 40 min) utilizando etanol como disolvente de extracción. Del extracto, se aisló la piperina utilizando una solución de KOH 10% etanólico. Fue purificada y caracterizada mediante punto de fusión, IR, GC-MS y RMN 1H. Una vez obtenido el extracto, se procedió a la formación de liposomas. Las vesículas de fosfatidilcolina y colesterol fueron preparadas con extracto y con piperina a diferentes concentraciones e hidratadas con buffer PBS a pH 7.40. El tamaño promedio de las partículas formadas, medido por dispersión de luz dinámica (DLS), estuvo en un rango de 299.7-531.9 nm. Para el estudio de la actividad antioxidante, se preparó una solución de DPPH 0.2 mM y se llevó a reacción con los liposomas de extracto y de piperina y sus correspondientes formas libres durante 60 min, medidos a 520 nm. El IC50 calculado para el extracto y la piperina fueron 2.8±0.2 y 21333±1499 ppm, respectivamente. Estos valores de IC50 fueron comparados frente a un estándar de referencia preparado bajo las mismas condiciones, quercetina (IC50 2.5±0.1 ppm). El ensayo con DPPH mostró que la forma liberada posee mayor actividad antioxidante mientras que en la encapsulación atenúa y estabiliza esta capacidad.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[Piper tuberculatum]]></kwd>
<kwd lng="en"><![CDATA[piperine]]></kwd>
<kwd lng="en"><![CDATA[Antioxidant activity]]></kwd>
<kwd lng="en"><![CDATA[encapsulation]]></kwd>
<kwd lng="en"><![CDATA[vesicles]]></kwd>
<kwd lng="en"><![CDATA[Phosphatidylcholine]]></kwd>
<kwd lng="es"><![CDATA[Piper tuberculatum]]></kwd>
<kwd lng="es"><![CDATA[piperina]]></kwd>
<kwd lng="es"><![CDATA[actividad antioxidante]]></kwd>
<kwd lng="es"><![CDATA[encapsulación]]></kwd>
<kwd lng="es"><![CDATA[vesículas]]></kwd>
<kwd lng="es"><![CDATA[fosfatidilcolina]]></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[Restrepo]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Colmenares]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Mora]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Sánchez]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extraction, chemical composition and antimicrobial activity of the essential oils of pipilongo (Piper tuberculatum) using supercritical carbon dioxide]]></article-title>
<source><![CDATA[Rev Ciencias]]></source>
<year>2013</year>
<volume>17</volume>
<numero>Especial Química</numero>
<issue>Especial Química</issue>
<page-range>45-56</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[Wattanathorn]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Chonpathompikunlert]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Muchimapura]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Priprem]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Tankamnerdthai]]></surname>
<given-names><![CDATA[O.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Piperine, the potential functional food for mood and cognitive disorders]]></article-title>
<source><![CDATA[Food Chem Toxicol]]></source>
<year>2008</year>
<volume>46</volume>
<numero>9</numero>
<issue>9</issue>
<page-range>3106-10</page-range></nlm-citation>
</ref>
<ref id="B3">
<label>3</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Pei]]></surname>
<given-names><![CDATA[YQ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[A Review of Pharmacology and Clinical Use of Piperine and Its Derivatives]]></article-title>
<source><![CDATA[Epilep]]></source>
<year>1983</year>
<volume>24</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>177-82</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[Tripathi]]></surname>
<given-names><![CDATA[AK]]></given-names>
</name>
<name>
<surname><![CDATA[Ali]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Mishra]]></surname>
<given-names><![CDATA[DP]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Attenuated Antioxidant property of UV-B Irradiated Piperine in Ischemia-Reperfusion Injury in SD rat]]></article-title>
<source><![CDATA[G-J Enviro Sci Techno]]></source>
<year>2013</year>
<volume>1</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>29-36</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[Bose-Kotte]]></surname>
<given-names><![CDATA[SC]]></given-names>
</name>
<name>
<surname><![CDATA[Dubey]]></surname>
<given-names><![CDATA[PK]]></given-names>
</name>
<name>
<surname><![CDATA[Murali]]></surname>
<given-names><![CDATA[PM]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Identification and characterization of stress degradation products of piperine and profiling of a black pepper (Piper nigrum L ) extract using LC/QTOF-dual ESI-MS]]></article-title>
<source><![CDATA[Anal Methods]]></source>
<year>2014</year>
<volume>6</volume>
<page-range>8022-9</page-range></nlm-citation>
</ref>
<ref id="B6">
<label>6</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Srinivasan]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Black Pepper and its Pungent Principle-Piperine A Review of Diverse Physiological Effects]]></article-title>
<source><![CDATA[Crit Rev Food Sci Nutr]]></source>
<year>2007</year>
<volume>47</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>735-48</page-range></nlm-citation>
</ref>
<ref id="B7">
<label>7</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Elizondo]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Moreno]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Cabrera]]></surname>
<given-names><![CDATA[I]]></given-names>
</name>
<name>
<surname><![CDATA[Córdoba]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Sala]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Veciana]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Liposomes and Other Vesicular Systems Structural Characteristics, Methods of Preparation, and Use in Nanomedicine]]></article-title>
<source><![CDATA[Pro Mol Biol Transl Sci]]></source>
<year>2011</year>
<volume>104</volume>
<page-range>1-52</page-range></nlm-citation>
</ref>
<ref id="B8">
<label>8</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Riehemann]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Schneider]]></surname>
<given-names><![CDATA[SW]]></given-names>
</name>
<name>
<surname><![CDATA[Luger]]></surname>
<given-names><![CDATA[TA]]></given-names>
</name>
<name>
<surname><![CDATA[Godin]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Ferrari]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
<name>
<surname><![CDATA[Fuchs]]></surname>
<given-names><![CDATA[H]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Nanomedicine- challenge and perspectives]]></article-title>
<source><![CDATA[Angew Chem Int Ed Engl]]></source>
<year>2009</year>
<volume>48</volume>
<numero>5</numero>
<issue>5</issue>
<page-range>872-97</page-range></nlm-citation>
</ref>
<ref id="B9">
<label>9</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Kerdudo]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Dingas]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Fernandez]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Faure]]></surname>
<given-names><![CDATA[C]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Encapsulation of rutin and naringenin in multilamellar vesicles for optimum antioxidant activity]]></article-title>
<source><![CDATA[Food Chemistry]]></source>
<year>2014</year>
<volume>159</volume>
<page-range>12-9</page-range></nlm-citation>
</ref>
<ref id="B10">
<label>10</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Maherani]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Arab-Tehrany]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Kheirolomoom]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Geny]]></surname>
<given-names><![CDATA[D]]></given-names>
</name>
<name>
<surname><![CDATA[Linder]]></surname>
<given-names><![CDATA[M]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Calcein release behavior from liposomal bilayer; influence of physicochemical/mechanical/structural properties of lipids]]></article-title>
<source><![CDATA[Biochimie]]></source>
<year>2013</year>
<volume>95</volume>
<numero>11</numero>
<issue>11</issue>
<page-range>2018-33</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[Eloy]]></surname>
<given-names><![CDATA[JO]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Liposomes as carriers of hydrophilic small molecule drugs Strategies to enhance encapsulation and delivery]]></article-title>
<collab>Claro de Souza M.Petrilli R.Barcellos JP.Lee RJ.Marchetti JM</collab>
<source><![CDATA[Colloids Surf B Biointerfaces]]></source>
<year>2014</year>
<volume>123</volume>
<page-range>345-63</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[Taylor]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[MG, Taylor G, Kellaway IW, Stevens J Drug entrapment and release from multilamellar and reverse-phase evaporation liposomes]]></article-title>
<source><![CDATA[Int J Pharm]]></source>
<year>1990</year>
<volume>58</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>49-55</page-range></nlm-citation>
</ref>
<ref id="B13">
<label>13</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Manojlovic]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Winkler]]></surname>
<given-names><![CDATA[K]]></given-names>
</name>
<name>
<surname><![CDATA[Bunjes]]></surname>
<given-names><![CDATA[V]]></given-names>
</name>
<name>
<surname><![CDATA[Neub]]></surname>
<given-names><![CDATA[A]]></given-names>
</name>
<name>
<surname><![CDATA[Schubert]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Bugarski]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Leneweit]]></surname>
<given-names><![CDATA[G]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Membrane interactions of ternary phospholipid/cholesterolbilayers and encapsulation efficiencies of a RIP II protein Colloids Surf]]></article-title>
<source><![CDATA[B:Biointerfaces]]></source>
<year>2008</year>
<volume>64</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>284-96</page-range></nlm-citation>
</ref>
<ref id="B14">
<label>14</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[McClements]]></surname>
<given-names><![CDATA[DJ]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Design of nano-laminated coatings to control bioavailability of lipophilic food components]]></article-title>
<source><![CDATA[J Food Sci]]></source>
<year>2010</year>
<volume>75</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>30-42</page-range></nlm-citation>
</ref>
<ref id="B15">
<label>15</label><nlm-citation citation-type="journal">
<person-group person-group-type="author">
<name>
<surname><![CDATA[Epstein]]></surname>
<given-names><![CDATA[WW]]></given-names>
</name>
<name>
<surname><![CDATA[Netz]]></surname>
<given-names><![CDATA[DF]]></given-names>
</name>
<name>
<surname><![CDATA[Seidel]]></surname>
<given-names><![CDATA[JL]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Isolation of piperine from Black pepper]]></article-title>
<source><![CDATA[Journal of Chemical Education]]></source>
<year>1993</year>
<volume>70</volume>
<numero>7</numero>
<issue>7</issue>
<page-range>598-9</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[Wena]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Liua]]></surname>
<given-names><![CDATA[B]]></given-names>
</name>
<name>
<surname><![CDATA[Zhenga]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Youa]]></surname>
<given-names><![CDATA[X]]></given-names>
</name>
<name>
<surname><![CDATA[Pua]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Qiong Li]]></surname>
<given-names><![CDATA[Q]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Preparation of liposomes entrapping essential oil from Atractylodes macrocephala Koidz by modified RESS technique]]></article-title>
<source><![CDATA[IChemE]]></source>
<year>2010</year>
<volume>88</volume>
<numero>8</numero>
<issue>8</issue>
<page-range>1102-7</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[Rathod]]></surname>
<given-names><![CDATA[SS]]></given-names>
</name>
<name>
<surname><![CDATA[Rathod]]></surname>
<given-names><![CDATA[VK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Extraction of piperine from Piper longum using ultrasound]]></article-title>
<source><![CDATA[Industrial Crops and Products]]></source>
<year>2014</year>
<volume>58</volume>
<page-range>259-64</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[Dey]]></surname>
<given-names><![CDATA[S]]></given-names>
</name>
<name>
<surname><![CDATA[Rathod]]></surname>
<given-names><![CDATA[VK]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Ultrasound assisted extraction of beta-carotene from Spirulina platensis]]></article-title>
<source><![CDATA[Ultrasonics Sonochemistry]]></source>
<year>2013</year>
<volume>20</volume>
<numero>1</numero>
<issue>1</issue>
<page-range>271-6</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[Pereira-Lachataignerais]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[Pons]]></surname>
<given-names><![CDATA[R]]></given-names>
</name>
<name>
<surname><![CDATA[Panizza]]></surname>
<given-names><![CDATA[P]]></given-names>
</name>
<name>
<surname><![CDATA[Courbin]]></surname>
<given-names><![CDATA[L]]></given-names>
</name>
<name>
<surname><![CDATA[Rouch]]></surname>
<given-names><![CDATA[J]]></given-names>
</name>
<name>
<surname><![CDATA[López]]></surname>
<given-names><![CDATA[O]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Study and formation of vesicle systems with low polydispersity index by ultrasound method]]></article-title>
<source><![CDATA[Chemistry and Physics of Lipids]]></source>
<year>2006</year>
<volume>140</volume>
<numero>1-2</numero>
<issue>1-2</issue>
<page-range>88-97</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[Zarai]]></surname>
<given-names><![CDATA[Z]]></given-names>
</name>
<name>
<surname><![CDATA[Boujelbene]]></surname>
<given-names><![CDATA[E]]></given-names>
</name>
<name>
<surname><![CDATA[Salem]]></surname>
<given-names><![CDATA[NB]]></given-names>
</name>
<name>
<surname><![CDATA[Gargouri]]></surname>
<given-names><![CDATA[Y]]></given-names>
</name>
<name>
<surname><![CDATA[Sayari]]></surname>
<given-names><![CDATA[A.]]></given-names>
</name>
</person-group>
<article-title xml:lang=""><![CDATA[Antioxidant and antimicrobial activities of various solvent extracts, piperine and piperic acid from Piper nigrum]]></article-title>
<source><![CDATA[Food Science and Technology]]></source>
<year>2013</year>
<volume>50</volume>
<numero>2</numero>
<issue>2</issue>
<page-range>634-41</page-range></nlm-citation>
</ref>
</ref-list>
</back>
</article>
