<?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>0254-0223</journal-id>
<journal-title><![CDATA[Ciência e Técnica Vitivinícola]]></journal-title>
<abbrev-journal-title><![CDATA[Ciência Téc. Vitiv.]]></abbrev-journal-title>
<issn>0254-0223</issn>
<publisher>
<publisher-name><![CDATA[INIAV - DOIS PORTOS (Ex-Estação Vitivinícola Nacional)]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0254-02232004000100002</article-id>
<title-group>
<article-title xml:lang="en"><![CDATA[Evaluation of wine brandies authenticity by the relationships between benzoic and cinnamic aldehydes and between furanic aldehydes]]></article-title>
<article-title xml:lang="pt"><![CDATA[Avaliação da genuinidade de aguardentes vínicas através das relações entre aldeídos benzóicos e cinâmicos e entre aldeídos furânicos]]></article-title>
<article-title xml:lang="fr"><![CDATA[Evaluation de l’authenticité des eaux-de-vie de vin par les relations entre aldéhydes benzoïques et cinnamiques et entre aldéhydes furaniques]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Canas]]></surname>
<given-names><![CDATA[S.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Quaresma]]></surname>
<given-names><![CDATA[H.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Belchior]]></surname>
<given-names><![CDATA[A. P.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Spranger]]></surname>
<given-names><![CDATA[M. I.]]></given-names>
</name>
<xref ref-type="aff" rid="A01"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Bruno-de-Sousa]]></surname>
<given-names><![CDATA[R.]]></given-names>
</name>
<xref ref-type="aff" rid="A02"/>
</contrib>
</contrib-group>
<aff id="A01">
<institution><![CDATA[,INIAP - Instituto Nacional de Investigação Agrária e das Pescas Estação Vitivinícola Nacional ]]></institution>
<addr-line><![CDATA[DOIS PORTOS ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="A02">
<institution><![CDATA[,Universidade Técnica de Lisboa Instituto Superior de Agronomia Departamento de Química Agrícola e Ambiental]]></institution>
<addr-line><![CDATA[ ]]></addr-line>
</aff>
<pub-date pub-type="pub">
<day>00</day>
<month>06</month>
<year>2004</year>
</pub-date>
<pub-date pub-type="epub">
<day>00</day>
<month>06</month>
<year>2004</year>
</pub-date>
<volume>19</volume>
<numero>1</numero>
<fpage>13</fpage>
<lpage>27</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0254-02232004000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0254-02232004000100002&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0254-02232004000100002&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="en"><p><![CDATA[Nowadays we are looking at the use of infinity of commercial products (namely vanillin, tannins and caramel) that are added to wines and brandies intending especially the shorting of their ageing in wooden barrels or even its imitation, mainly due to economic reasons. It is also searched the supposed improvement or alteration of wines and brandies sensorial properties in order to support the consumers preference. In this point of view, the assessment of aged wines and brandies authenticity becomes indispensable, being also evident the search of simple and secure indicators to evaluate the type of wood used in the ageing process. Many authors have used furanic derivatives contents and or wood phenolic compounds ratios as indicators of the authenticity of brandies and other alcoholic beverages. However, some studies stated that the extraction of these wood compounds depends on several factors. On the other hand, incorrect experimental designs and or the absence of factors interaction analysis frequently contribute to have not credible results. In the present work is analyzed the potential interest of the relationships between phenolic aldehydes and between furanic derivatives to assess the brandies authenticity, examining the influence of the botanical species (seven oaks and one chestnut), the toasting level (light, medium and strong) and the ageing time (during the first four years) in a Lourinhã brandy analyzed by HPLC. The benzoic/cinnamic aldehydes ratio appeared suitable to evaluate if the wood used in the ageing of brandy was chestnut or oak. Conversely, the furanic derivatives contents and their ratios cannot be used as wood ageing markers, since they are dependent on the interaction between the botanical species and the toasting level.]]></p></abstract>
<abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Assiste-se actualmente ao uso de uma infinidade de produtos comerciais (nomeadamente vanilina, taninos e caramelo) que são adicionados a vinhos e a aguardentes com a intenção de encurtar o tempo de envelhecimento em madeira ou mesmo à sua imitação, principalmente por razões de ordem económica. Com o seu uso procura-se também a suposta melhoria ou alteração das características organolépticas de vinhos e aguardentes, no sentido de satisfazer o gosto do consumidor. Neste sentido, torna-se indispensável a apreciação da genuinidade de vinhos e aguardentes, sendo também premente a procura de indicadores simples e fiáveis para a avaliação do tipo de madeira usado no envelhecimento. Muitos autores têm recorrido aos teores de aldeídos furânicos e/ou às relações entre os compostos fenólicos da madeira como indicadores da genuinidade de aguardentes e de outras bebidas alcoólicas. Contudo, alguns estudos indicam que a extracção dos compostos da madeira depende de diversos factores e, por outro lado, delineamentos experimentais incorrectos e/ou a ausência da análise da interacção dos factores comprometem a credibilidade dos resultados obtidos. Neste trabalho é analisado o interesse potencial das razões entre aldeídos fenólicos e entre aldeídos furânicos para a avaliação da genuinidade das aguardentes, através da apreciação da influência das espécies botânicas (sete madeiras de carvalhos e uma de castanheiro), do nível de queima (ligeira, média e forte) e do tempo de envelhecimento (durante quatro anos) numa aguardente Lourinhã analisada por HPLC. A razão aldeídos benzóicos/cinâmicos parece adequada para avaliar se no envelhecimento foi usada madeira de castanheiro ou de carvalho. Contrariamente, os teores e as razões de aldeídos furânicos não podem ser usados como marcadores do envelhecimento em madeira face à sua estreita associação a factores interdependentes como a espécie botânica e o nível de queima.]]></p></abstract>
<abstract abstract-type="short" xml:lang="fr"><p><![CDATA[De nos jours, on constate l’utilisation d’un grand nombre de produits commerciaux (vanilline, tanins et caramel) qui sont additionnés aux vins et aux eaux-de-vie dans le but de réduire la durée de vieillissement sous bois ou de simuler ce vieillissement pour des raisons économiques. On cherche également à améliorer ou à modifier les caractéristiques organoleptiques des vins et des eaux-de-vie afin de satisfaire le goût du consommateur. Dans cette perspective, évaluer l’authenticité du vieillissement des vins et des eaux-de-vie devient indispensable. De plus, il est nécessaire de posséder des indices simples et fiables afin d’évaluer le type de bois utilisé lors du vieillissement. De nombreux auteurs ont utilisé les teneurs en aldéhydes furaniques et/ou les relations entre composés phénoliques du bois comme facteurs d’authenticité pour les eaux-de-vie et autres boissons alcooliques. Cependant, certaines études ont démontré que l’extraction de ces composés dépend de différents facteurs. D’autre part, des protocoles expérimentaux inadaptés et/ou l’absence de l’analyse de l’interaction des facteurs n’ont pas toujours fourni de réponses crédibles. Dans ce travail on analyse l’intérêt des relations entre aldehydes phénoliques et entre aldehydes furaniques pour évaluer l’authenticité des eaux-de-vie, en étudiant l’influence des espèces botaniques (sept chênes et un chatagnier), du niveau de brûlage (léger, moyen et fort) et du temps de vieillissement (pendant quatre années) dans une eaux-de-vie Lourinhã analysée par HPLC. Le rapport aldéhydes benzoïques/cinnamiques apparaît correct pour estimer si le bois utilisé lors du vieillissement des eaux de vie est le châtaignier ou le chêne. A l’inverse, les aldehydes furaniques ne peuvent pas être utilisés comme marqueurs du vieillissement sous bois car ils dépendent de différents facteurs interdépendants tel que l’espèce botanique et le niveau de brûlage.]]></p></abstract>
<kwd-group>
<kwd lng="en"><![CDATA[brandy]]></kwd>
<kwd lng="en"><![CDATA[woods]]></kwd>
<kwd lng="en"><![CDATA[ageing]]></kwd>
<kwd lng="en"><![CDATA[authenticity]]></kwd>
<kwd lng="en"><![CDATA[phenolic aldehydes]]></kwd>
<kwd lng="en"><![CDATA[furanic derivatives]]></kwd>
<kwd lng="pt"><![CDATA[aguardente]]></kwd>
<kwd lng="pt"><![CDATA[madeiras]]></kwd>
<kwd lng="pt"><![CDATA[envelhecimento]]></kwd>
<kwd lng="pt"><![CDATA[genuinidade]]></kwd>
<kwd lng="pt"><![CDATA[aldeídos fenólicos]]></kwd>
<kwd lng="pt"><![CDATA[aldeídos furânicos]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ <p align="center"><b> EVALUATION OF WINE BRANDIES AUTHENTICITY BY THE RELATIONSHIPS    BETWEEN BENZOIC AND CINNAMIC ALDEHYDES AND BETWEEN FURANIC ALDEHYDES</b> </P >     <p align="center">&nbsp;</P >      <P align="center"    ><b>S. Canas<Sup>1</Sup>, H. Quaresma<Sup>1,2</Sup>, A. P. Belchior<Sup>1</Sup>,    M. I. Spranger<Sup>1</Sup>, R. Bruno-de-Sousa<Sup>3 </Sup></b></P >     <P   align="justify" >&nbsp;</P >     <p align="center">1 INIAP. Esta&ccedil;&atilde;o Vitivin&iacute;cola Nacional.    2565-191 DOIS PORTOS. Portugal. E-mail: <a href="mailto:inia.evn.quim@oninet.pt">inia.evn.quim@oninet.pt    </a></p>     <p align="center"><Sup>2 </Sup>Student of Escola Superior Agr&aacute;ria de Santar&eacute;m.    2000 SANTAR&Eacute;M. Portugal. </P >     <p align="center"><Sup>3</Sup>Instituto Superior de Agronomia - Departamento de    Qu&iacute;mica Agr&iacute;cola e Ambiental. Tapada da Ajuda. LISBOA.Portugal.    E-mail: <a href="mailto:bruno@reitoria.utl.pt">bruno@reitoria.utl.pt </a></P >     <p align="center"><I>(Manuscrito recebido em 01.03.04. Aceite para publica&ccedil;&atilde;o    em 14.04.04.) </I></P >     <p align="center">&nbsp;</P >     <p align="center">&nbsp;</P >     ]]></body>
<body><![CDATA[<P   align="center" ><b>SUMMARY</b> </P >     <P   align="justify" >Nowadays we are looking at the use of infinity of commercial products (namely    vanillin, tannins and caramel) that are added to wines and brandies intending    especially the shorting of their ageing in wooden barrels or even its imitation,    mainly due to economic reasons. It is also searched the supposed improvement    or alteration of wines and brandies sensorial properties in order to support    the consumers preference. In this point of view, the assessment of aged wines    and brandies authenticity becomes indispensable, being also evident the search    of simple and secure indicators to evaluate the type of wood used in the ageing    process. Many authors have used furanic derivatives contents and or wood phenolic    compounds ratios as indicators of the authenticity of brandies and other alcoholic    beverages. However, some studies stated that the extraction of these wood compounds    depends on several factors. On the other hand, incorrect experimental designs    and or the absence of factors interaction analysis frequently contribute to    have not credible results. In the present work is analyzed the potential interest    of the relationships between phenolic aldehydes and between furanic derivatives    to assess the brandies authenticity, examining the influence of the botanical    species (seven oaks and one chestnut), the toasting level (light, medium and    strong) and the ageing time (during the first four years) in a Lourinh&atilde;    brandy analyzed by HPLC. The benzoic/cinnamic aldehydes ratio appeared suitable    to evaluate if the wood used in the ageing of brandy was chestnut or oak. Conversely,    the furanic derivatives contents and their ratios cannot be used as wood ageing    markers, since they are dependent on the interaction between the botanical species    and the toasting level. </P >     <P><b>Key words</b>: brandy, woods, ageing, authenticity, phenolic aldehydes, furanic derivatives  </P > </P >     <P   align="justify" >&nbsp;</P         >     <P   align="center" ><b>RESUMO</b> </P >     <P   align="center" ><b>Avalia&ccedil;&atilde;o da genuinidade de aguardentes v&iacute;nicas atrav&eacute;s    das rela&ccedil;&otilde;es entre alde&iacute;dos benz&oacute;icos e cin&acirc;micos    e entre alde&iacute;dos fur&acirc;nicos</b> </P >     <P   align="justify" >Assiste-se actualmente ao uso de uma infinidade de produtos comerciais (nomeadamente    vanilina, taninos e caramelo) que s&atilde;o adicionados a vinhos e a aguardentes    com a inten&ccedil;&atilde;o de encurtar o tempo de envelhecimento em madeira    ou mesmo &agrave; sua imita&ccedil;&atilde;o, principalmente por raz&otilde;es    de ordem econ&oacute;mica. Com o seu uso procura-se tamb&eacute;m a suposta    melhoria ou altera&ccedil;&atilde;o das caracter&iacute;sticas organol&eacute;pticas    de vinhos e aguardentes, no sentido de satisfazer o gosto do consumidor. Neste    sentido, torna-se indispens&aacute;vel a aprecia&ccedil;&atilde;o da genuinidade    de vinhos e aguardentes, sendo tamb&eacute;m premente a procura de indicadores    simples e fi&aacute;veis para a avalia&ccedil;&atilde;o do tipo de madeira usado    no envelhecimento. Muitos autores t&ecirc;m recorrido aos teores de alde&iacute;dos    fur&acirc;nicos e/ou &agrave;s rela&ccedil;&otilde;es entre os compostos fen&oacute;licos    da madeira como indicadores da genuinidade de aguardentes e de outras bebidas    alco&oacute;licas. Contudo, alguns estudos indicam que a extrac&ccedil;&atilde;o    dos compostos da madeira depende de diversos factores e, por outro lado, delineamentos    experimentais incorrectos e/ou a aus&ecirc;ncia da an&aacute;lise da interac&ccedil;&atilde;o    dos factores comprometem a credibilidade dos resultados obtidos. Neste trabalho    &eacute; analisado o interesse potencial das raz&otilde;es entre alde&iacute;dos    fen&oacute;licos e entre alde&iacute;dos fur&acirc;nicos para a avalia&ccedil;&atilde;o    da genuinidade das aguardentes, atrav&eacute;s da aprecia&ccedil;&atilde;o da    influ&ecirc;ncia das esp&eacute;cies bot&acirc;nicas (sete madeiras de carvalhos    e uma de castanheiro), do n&iacute;vel de queima (ligeira, m&eacute;dia e forte)    e do tempo de envelhecimento (durante quatro anos) numa aguardente <I>Lourinh&atilde;    </I>analisada por HPLC. A raz&atilde;o alde&iacute;dos benz&oacute;icos/cin&acirc;micos    parece adequada para avaliar se no envelhecimento foi usada madeira de castanheiro    ou de carvalho. Contrariamente, os teores e as raz&otilde;es de alde&iacute;dos    fur&acirc;nicos n&atilde;o podem ser usados como marcadores do envelhecimento    em madeira face &agrave; sua estreita associa&ccedil;&atilde;o a factores interdependentes    como a esp&eacute;cie bot&acirc;nica e o n&iacute;vel de queima. </P >     <P   align="justify" >&nbsp;</P >     <P   align="justify" ><b>Palavras-Chave</b>: aguardente, madeiras, envelhecimento, genuinidade, alde&iacute;dos    fen&oacute;licos, alde&iacute;dos fur&acirc;nicos </P >     <P   align="center" >&nbsp;</P >     ]]></body>
<body><![CDATA[<P   align="center" >&nbsp;</P >     <P   align="center" ><b>R&Eacute;SUM&Eacute;</b> </P >     <P   align="center" ><b>Evaluation de l&#146;authenticit&eacute; des eaux-de-vie    de vin par les relations entre ald&eacute;hydes benzo&iuml;ques et cinnamiques    et entre ald&eacute;hydes furaniques</b> </P >     <P   align="justify" >De nos jours, on constate l&#146;utilisation d&#146;un    grand nombre de produits commerciaux (vanilline, tanins et caramel) qui sont    additionn&eacute;s aux vins et aux eaux-de-vie dans le but de r&eacute;duire    la dur&eacute;e de vieillissement sous bois ou de simuler ce vieillissement    pour des raisons &eacute;conomiques. On cherche &eacute;galement &agrave; am&eacute;liorer    ou &agrave; modifier les caract&eacute;ristiques organoleptiques des vins et    des eaux-de-vie afin de satisfaire le go&ucirc;t du consommateur. Dans cette    perspective, &eacute;valuer l&#146;authenticit&eacute; du vieillissement des    vins et des eaux-de-vie devient indispensable. De plus, il est n&eacute;cessaire    de poss&eacute;der des indices simples et fiables afin d&#146;&eacute;valuer    le type de bois utilis&eacute; lors du vieillissement. De nombreux auteurs ont    utilis&eacute; les teneurs en ald&eacute;hydes furaniques et/ou les relations    entre compos&eacute;s ph&eacute;noliques du bois comme facteurs d&#146;authenticit&eacute;    pour les eaux-de-vie et autres boissons alcooliques. Cependant, certaines &eacute;tudes    ont d&eacute;montr&eacute; que l&#146;extraction de ces compos&eacute;s d&eacute;pend    de diff&eacute;rents facteurs. D&#146;autre part, des protocoles exp&eacute;rimentaux    inadapt&eacute;s et/ou l&#146;absence de l&#146;analyse de l&#146;interaction    des facteurs n&#146;ont pas toujours fourni de r&eacute;ponses cr&eacute;dibles.    Dans ce travail on analyse l&#146;int&eacute;r&ecirc;t des relations entre aldehydes    ph&eacute;noliques et entre aldehydes furaniques pour &eacute;valuer l&#146;authenticit&eacute;    des eaux-de-vie, en &eacute;tudiant l&#146;influence des esp&egrave;ces botaniques    (sept ch&ecirc;nes et un chatagnier), du niveau de br&ucirc;lage (l&eacute;ger,    moyen et fort) et du temps de vieillissement (pendant quatre ann&eacute;es)    dans une eaux-de-vie <I>Lourinh&atilde; </I>analys&eacute;e par HPLC. Le rapport    ald&eacute;hydes benzo&iuml;ques/cinnamiques appara&icirc;t correct pour estimer    si le bois utilis&eacute; lors du vieillissement des eaux de vie est le ch&acirc;taignier    ou le ch&ecirc;ne. A l&#146;inverse, les aldehydes furaniques ne peuvent pas    &ecirc;tre utilis&eacute;s comme marqueurs du vieillissement sous bois car ils    d&eacute;pendent de diff&eacute;rents facteurs interd&eacute;pendants tel que    l&#146;esp&egrave;ce botanique et le niveau de br&ucirc;lage. </P >     <P   align="justify" >&nbsp;</P         >     <P   align="justify" >&nbsp;</P         >     <P   align="justify" >&nbsp;</P         >     <p>Texto completo apenas em formato pdf.</p>     <p> Full text only in pdf format.</p>       <P   align="justify" >&nbsp;</P           >        ]]></body>
<body><![CDATA[<P   align="justify" >&nbsp;</P >      <P   align="center" >&nbsp;</P >     <p align="center"><b>REFERENCES</b> </P > </p>     <!-- ref --><P   align="justify" >Baldwin S., Black R. A., Andreasen A. A., Adams S. L., 1967. Aromatic congener    formation in maturation of alcoholic distillates. <I>J. Agr. Food Chem.</I>,  <b>15</b>, 381-385. </P >     &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=000036&pid=S0254-0223200400010000200001&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><P   align="justify" >Belchior A. P., San-Rom&atilde;o V., 1982. Influence de l&#146;oxyg&egrave;ne    et de la lumi&egrave;re sur l&#146;&eacute;volution de la composition ph&eacute;nolique    des eaux-de-vie vieillis en bois de ch&ecirc;ne. <I>Bull. 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