<?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>0121-4004</journal-id>
<journal-title><![CDATA[Vitae]]></journal-title>
<abbrev-journal-title><![CDATA[Vitae]]></abbrev-journal-title>
<issn>0121-4004</issn>
<publisher>
<publisher-name><![CDATA[Facultad de Química Farmacéutica, Universidad de Antioquia]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0121-40042016000300184</article-id>
<article-id pub-id-type="doi">10.17533/udea.vitae.v23n3a04</article-id>
<title-group>
<article-title xml:lang="es"><![CDATA[Efecto del tiempo de almacenamiento sobre propiedades fisicoquímicas y antioxidantes de productos derivados del fruto agraz (V accinium meridionale swartz)]]></article-title>
<article-title xml:lang="en"><![CDATA[Effect of storage time on the physicochemical properties and antioxidants of products derived of andean berry ( Vaccinium meridionale swartz )]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Franco-Tobón]]></surname>
<given-names><![CDATA[Yuly Nataly]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rojano]]></surname>
<given-names><![CDATA[Benjamín]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Alzate-Arbeláez]]></surname>
<given-names><![CDATA[Andrés Felipe]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Restrepo-Florez]]></surname>
<given-names><![CDATA[Claudia Estela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Rivero-Barrios]]></surname>
<given-names><![CDATA[Diana Marsela]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Maldonado-Celis]]></surname>
<given-names><![CDATA[María Elena]]></given-names>
</name>
<xref ref-type="aff" rid="Aff"/>
</contrib>
</contrib-group>
<aff id="Af1">
<institution><![CDATA[,Universidad de Antioquia UdeA Escuela de Nutrición y Dietética ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af2">
<institution><![CDATA[,Universidad Nacional UNAL Facultad de Ciencias ]]></institution>
<addr-line><![CDATA[Medellín ]]></addr-line>
<country>Colombia</country>
</aff>
<aff id="Af3">
<institution><![CDATA[,Instituto de Ciencia y Tecnología Alimentaria INTAL  ]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
<country>Colombia</country>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>09</month>
<year>2016</year>
</pub-date>
<volume>23</volume>
<numero>3</numero>
<fpage>184</fpage>
<lpage>193</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_arttext&amp;pid=S0121-40042016000300184&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_abstract&amp;pid=S0121-40042016000300184&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://www.scielo.org.co/scielo.php?script=sci_pdf&amp;pid=S0121-40042016000300184&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="es"><p><![CDATA[Resumen:  Antecedentes: Agraz es una baya globosa, de color púrpura intenso cuando está madura. Posee alta capacidad antioxidante comparada con bayas del mismo género, atribuido al contenido de compuestos polifenólicos.  Objetivo:  Evaluar la composición, actividad antioxidante y algunos parámetros microbiológicos de pulpa de agraz congelada (PAC) y pulpa de agraz liofilizada (PAL) y analizar su comportamiento durante 60 días de almacenamiento.  Métodos: Se midieron pH, °Brix, acidez titulable, % humedad, cenizas, grasa, proteína, carbohidratos, calorías totales y actividad acuosa a intervalos de 15 días durante el almacenamiento. En las mismas condiciones se determinó el contenido de fenoles y antocianinas totales mediante Folin-Ciocalteau y método diferencial de pH, respectivamente. La actividad antioxidante mediante FRAP y ORAC.  Resultados: no presentaron diferencias estadísticas significativas (p&gt;0,05) durante el almacenamiento en pH, °Brix, aw (liofilizado), % humedad, grasa, cenizas, carbohidratos y calorías totales para PAC y PAL, indicando estabilidad de éstas variables a través del tiempo de almacenamiento. La acidez titulable expresada en mg de ácido cítrico/ml, varió significativamente (p&lt;0,05) a través del tiempo de almacenamiento para PAC y PAL entre 1,65-1,82 y 4,66-4,79 respectivamente. La proteína varió durante el almacenamiento para PAC y PAL entre 1,25-2,10 g y 4,70-5,20 g, y se observó para ambos un aumento significativo entre el día 15 y 60 de almacenamiento. PAC y PAL presentaron pérdidas significativas del contenido de antocianinas, fenoles totales y valor FRAP durante el almacenamiento; sin embargo la PAL conservó hasta el día 60 alto contenido de fenoles totales: 1046 mg eq de ácido gálico/100g), antocianinas totales: 82,64 (mg eq de cianidin-3-glicosido/100g), capacidad reductora (FRAP): 1032,17 mg de equivalentes de ácido ascórbico/100g y valor ORAC 33935 µmol de equivalentes de Trolox/100g.  Conclusión: las variables fisicoquímicas analizadas en la PAL fueron estables y se conservó el contenido de compuestos polifenólicos por mayor tiempo comparado con la PAC. Considerando que el agraz tiene dos temporadas de cosecha al año en Colombia (mayo y diciembre), la liofilización es una estrategia que permitirá al productor abastecimiento constante de la fruta para el mercado.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Abstract:  Background:  Andean berry is a globose berry, deep purple when it reaches its highest degree of maturity. It fruit has a high antioxidant capacity compared to other Vaccinum berries, attributed to the content of polyphenolic compounds.  Objectives:  To evaluate the composition, antioxidant activity and some microbiological parameters of frozen pulp of Andean berry (PAC) and freeze-dried pulp of Andean berry (PAL) and analyze their behavior during 60 days of storage. Methods: the variables pH, ° Brix, titratable acidity, % moisture, ash, fat, protein, carbohydrates, total calories and water activity (lyophilized) were measured at intervals of 15 days during storage. Under the same conditions the content of phenols and total anthocyanins by Folin-Ciocalteu and pH differential method respectively was determined. The antioxidant activity by FRAP and ORAC. Results: There were no significant differences (p&gt;0,05) during storage in pH, ° Brix, Aw (lyophilized), % moisture, fat, ash, carbohydrates and total calories for PAC and PAL indicating stability of these variables over time storage. Titratable acidity expressed in mg citric acid/ml, varied significantly p (&lt;0.05) over time storage for PAC and PAL between 1.65 to 1.82 and 4.66 to 4.79 respectively. The protein varied during storage for PAC and PAL between 1.25 to 2.10 g and 4.70 to 5.20 g, and was observed for both a significant increase between day 15 and 60 of storage. PAC and PAL showed significant losses of anthocyanins, total phenols and FRAP value during storage; however the PAL retained until day 60 high content of total phenols: 1046 (mg gallic eq/100 g acid), anthocyanins: 82.64 (mg eq of cyanidin-3-glucoside/100g), reducing capacity (FRAP): 1032.17 mg ascorbic acid equivalents /100 g and ORAC value 33935 umol equivalents Trolox/100g. Conclusions: physicochemical variables analyzed in the PAL were stable and content of polyphenolic compounds retained for longer compared to PAC. Whereas Andean berry has two growing seasons a year in Colombia (May and December), freeze-dried is a strategy that will allow the producer constant supply of fruit on the market.]]></p></abstract>
<kwd-group>
<kwd lng="es"><![CDATA[Vaccinum meridionale]]></kwd>
<kwd lng="es"><![CDATA[actividad antioxidante]]></kwd>
<kwd lng="es"><![CDATA[almacenamiento]]></kwd>
<kwd lng="es"><![CDATA[fenoles]]></kwd>
<kwd lng="es"><![CDATA[antocianinas]]></kwd>
<kwd lng="en"><![CDATA[Vaccinum meridionale]]></kwd>
<kwd lng="en"><![CDATA[physicochemical]]></kwd>
<kwd lng="en"><![CDATA[antioxidant activity]]></kwd>
<kwd lng="en"><![CDATA[storage]]></kwd>
<kwd lng="en"><![CDATA[phenols]]></kwd>
<kwd lng="en"><![CDATA[anthocyanins]]></kwd>
</kwd-group>
</article-meta>
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