<?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>0871-018X</journal-id>
<journal-title><![CDATA[Revista de Ciências Agrárias]]></journal-title>
<abbrev-journal-title><![CDATA[Rev. de Ciências Agrárias]]></abbrev-journal-title>
<issn>0871-018X</issn>
<publisher>
<publisher-name><![CDATA[Sociedade de Ciências Agrárias de Portugal]]></publisher-name>
</publisher>
</journal-meta>
<article-meta>
<article-id>S0871-018X2017000500020</article-id>
<article-id pub-id-type="doi">10.19084/RCA16232</article-id>
<title-group>
<article-title xml:lang="pt"><![CDATA[Caracterização do perfil fenólico do extrato aquoso e hidroetanólico de Rosmarinus officinalis L.]]></article-title>
<article-title xml:lang="en"><![CDATA[Chemical characterization of the Rosmarinus officinalis L. aqueous and hydroethanolic extracts in terms of phenolic compounds]]></article-title>
</title-group>
<contrib-group>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ribeiro]]></surname>
<given-names><![CDATA[Andreia]]></given-names>
</name>
<xref ref-type="aff" rid="A1 "/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Caleja]]></surname>
<given-names><![CDATA[Cristina]]></given-names>
</name>
<xref ref-type="aff" rid="A1 "/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barros]]></surname>
<given-names><![CDATA[Lillian]]></given-names>
</name>
<xref ref-type="aff" rid="A1"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Santos-Buelga]]></surname>
<given-names><![CDATA[Celestino]]></given-names>
</name>
<xref ref-type="aff" rid="A3"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Barreiro]]></surname>
<given-names><![CDATA[Maria Filomena]]></given-names>
</name>
<xref ref-type="aff" rid="A2"/>
</contrib>
<contrib contrib-type="author">
<name>
<surname><![CDATA[Ferreira]]></surname>
<given-names><![CDATA[Isabel C.F.R.]]></given-names>
</name>
<xref ref-type="aff" rid="A1"/>
</contrib>
</contrib-group>
<aff id="AA1">
<institution><![CDATA[,Instituto Politécnico de Bragança Centro de Investigação de Montanha ]]></institution>
<addr-line><![CDATA[Bragança ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="AA2">
<institution><![CDATA[,Instituto Politécnico de Bragança Laboratório de Processos de Separação e Reação ]]></institution>
<addr-line><![CDATA[Bragança ]]></addr-line>
<country>Portugal</country>
</aff>
<aff id="AA3">
<institution><![CDATA[,Universidade de Salamanca Facultade de Farmácia GIP-USAL]]></institution>
<addr-line><![CDATA[Salamanca ]]></addr-line>
<country>Espanha</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>40</volume>
<numero>spe</numero>
<fpage>181</fpage>
<lpage>190</lpage>
<copyright-statement/>
<copyright-year/>
<self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_arttext&amp;pid=S0871-018X2017000500020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_abstract&amp;pid=S0871-018X2017000500020&amp;lng=en&amp;nrm=iso"></self-uri><self-uri xlink:href="http://scielo.pt/scielo.php?script=sci_pdf&amp;pid=S0871-018X2017000500020&amp;lng=en&amp;nrm=iso"></self-uri><abstract abstract-type="short" xml:lang="pt"><p><![CDATA[Desde a antiguidade, as plantas têm suscitado grande interesse pelos benefícios que trazem para a saúde humana. Em particular, algumas espécies de plantas, para além das suas características aromáticas, constituem uma fonte natural de diversos compostos bioativos nomeadamente compostos fenólicos, que têm sido associados a propriedades antioxidantes, anti-inflamatórias, entre outras. Neste trabalho, estudaram-se amostras de Rosmarinus officinalis L. fornecidas pelo Cantinho das Aromáticas Lda. (Vila Nova de Gaia). Prepararam-se duas tipologias de extratos, aquoso e hidroetanólico, que foram subsequentemente caracterizados por HPLC-DAD-ESI/MS. Relativamente ao extrato hidroetanólico, o extrato aquoso apresentou um teor de compostos fenólicos total superior, assim como concentrações dos compostos individuais superiores. O ácido rosmarínico foi o composto mais abundante em ambos os extratos.]]></p></abstract>
<abstract abstract-type="short" xml:lang="en"><p><![CDATA[Since the primitive societies, plants have received great attention due to the benefits they bring to human health. In particular, some plant species, in addition to their aromatic characteristics, provide natural sources of several bioactive molecules including phenolic compounds, which have been associated with antioxidant, anti-inflammatory and antimicrobial properties, among others. In this work, Rosmarinus officinalis L. samples provided by Cantinho das Aromáticas Lda. (Vila Nova de Gaia) were studied. Aqueous and hydroethanolic extracts were prepared and chemically characterized by HPLC-DAD-ESI/MS. The aqueous extract showed a higher content in total phenolic compounds as also in each of the individual compounds, in comparison to the hydroethanolic extract. Rosmarinic acid was the most abundant compound present in both extracts.]]></p></abstract>
<kwd-group>
<kwd lng="pt"><![CDATA[Rosmarinus officinalis L.]]></kwd>
<kwd lng="pt"><![CDATA[compostos fenólicos]]></kwd>
<kwd lng="pt"><![CDATA[cromatografia]]></kwd>
<kwd lng="pt"><![CDATA[espetrometria de massa]]></kwd>
<kwd lng="en"><![CDATA[Rosmarinus officinalis L.]]></kwd>
<kwd lng="en"><![CDATA[phenolic compounds]]></kwd>
<kwd lng="en"><![CDATA[chromatography]]></kwd>
<kwd lng="en"><![CDATA[mass spectrometry]]></kwd>
</kwd-group>
</article-meta>
</front><body><![CDATA[ 

    <p align = "right"><font face = "Verdana" size = "2"><b>ARTIGO</b></font></p>

    <p><font face = Verdana
size = 4><b>Caracterização do perfil fenólico do extrato aquoso e hidroetanólico
de <i>Rosmarinus officinalis </i>L.</b></font></p>

    <p><font face = Verdana size
= 3><b>Chemical characterization of the <i>Rosmarinus officinalis </i>L. aqueous
and hydroethanolic extracts in terms of phenolic compounds</b></font></p>

    <p><font face = Verdana size = 2><b>Andreia Ribeiro</b><sup>1,2</sup>, <b>Cristina Caleja</b><sup>1,2</sup>,
<b>Lillian Barros</b><sup>1</sup>, <b>Celestino Santos-Buelga</b><sup>3</sup>, <b>Maria Filomena
Barreiro</b><sup>2</sup> e <b>Isabel C.F.R. Ferreira</b><sup>1,*</sup></font></p>

    <p><font face = Verdana size = 2><i><sup>1</sup>Centro de Investigação de Montanha
(CIMO), ESA, Instituto Politécnico de Bragança, Campus de Santa Apolónia, 1172,
5301-855 Bragança, Portugal</i></font></p>

    <p><font face = Verdana size = 2><i><sup>2</sup>Laboratório
de Processos de Separação e Reação (LSRE), Laboratório Associado LSRE/LCM, Instituto
Politécnico de Bragança, Campus Santa Apolónia Ap. 1134, 5301-857 Bragança, Portugal</i></font></p>

    <p><font face = Verdana size = 2><i><sup>3</sup>GIP-USAL, Facultade de Farmácia,
Universidade de Salamanca, Campus Miguel de Unamuno, 37007 Salamanca, Espanha</i></font></p>

    <p><font face = Verdana size = 2><i>(*E-mail: <a href = "mailto:iferreira@ipb.pt">iferreira@ipb.pt</a>)</i></font></p>

<hr noshade size = 1>

    <p><font face = Verdana size = 3><b>RESUMO</b></font></p>

    ]]></body>
<body><![CDATA[<p><font face = Verdana size = 2>Desde a antiguidade, as plantas têm suscitado
grande interesse pelos benefícios que trazem para a saúde humana. Em particular,
algumas espécies de plantas, para além das suas características aromáticas, constituem
uma fonte natural de diversos compostos bioativos nomeadamente compostos fenólicos,
que têm sido associados a propriedades antioxidantes, anti-inflamatórias, entre
outras. Neste trabalho, estudaram-se amostras de <i>Rosmarinus officinalis</i> L.
fornecidas pelo Cantinho das Aromáticas Lda. (Vila Nova de Gaia). Prepararam-se
duas tipologias de extratos, aquoso e hidroetanólico, que foram subsequentemente
caracterizados por HPLC-DAD-ESI/MS. Relativamente ao extrato hidroetanólico, o extrato
aquoso apresentou um teor de compostos fenólicos total superior, assim como concentrações
dos compostos individuais superiores. O ácido rosmarínico foi o composto mais abundante
em ambos os extratos.</font></p>

    <p><font face = Verdana size = 2><b>Palavras-chave</b>: <i>Rosmarinus officinalis</i>
L., compostos fenólicos, cromatografia, espetrometria de massa.</font></p>

<hr noshade size = 1>

    <p><font face = Verdana size = 3><b>ABSTRACT</b></font></p>

    <p><font face = Verdana size = 2>Since the primitive societies, plants have received
great attention due to the benefits they bring to human health. In particular, some
plant species, in addition to their aromatic characteristics, provide natural sources
of several bioactive molecules including phenolic compounds, which have been associated
with antioxidant, anti-inflammatory and antimicrobial properties, among others.
In this work, <i>Rosmarinus officinalis</i> L. samples provided by Cantinho das
Aromáticas Lda. (Vila Nova de Gaia) were studied. Aqueous and hydroethanolic extracts
were prepared and chemically characterized by HPLC-DAD-ESI/MS. The aqueous extract
showed a higher content in total phenolic compounds as also in each of the individual
compounds, in comparison to the hydroethanolic extract. Rosmarinic acid was the
most abundant compound present in both extracts.</font></p>

    <p><font face = Verdana size = 2><b>Keywords:</b>
<i>Rosmarinus officinalis</i> L., phenolic compounds, chromatography, mass spectrometry.
</font></p>

<hr noshade size = 1>

    <p><font face = Verdana size = 3><b>INTRODUÇÃO</b></font></p>

    <p><font face = Verdana size
= 2><i>Rosmarinus officinalis</i> L., vulgarmente conhecido por alecrim, é nativo
das regiões mediterrânicas. Trata-se de uma das plantas mais conhecidas desde a
antiguidade devido às suas propriedades medicinais, condimentares e aromatizantes
(Bellumori <i>et al</i>., 2015). São atribuídas várias bioatividades aos extratos
de alecrim de entre as quais se destacam as propriedades antioxidantes (Vicente
<i>et al</i>., 2013), antimicrobianas (Laham e Fadel, 2013), anti-inflamatórias
(Arranz <i>et al</i>., 2013), antidiabéticas (Bakiral <i>et al</i>., 2008) e hepatoprotetoras
(Al-Attar e Shawush, 2015). Estes atributos medicinais têm sido relacionados com
o seu elevado teor em compostos fenólicos, principalmente derivados de ácido cafeico,
tais como o ácido rosmarínico, que é um dos principais componentes encontrados nesta
planta (Couto <i>et al</i>., 2011). O principal objetivo deste trabalho foi identificar
e quantificar os compostos fenólicos presentes em preparados vulgarmente usados
como no caso de infusões.</font></p>

    <p><font face = Verdana size = 3><b>MATERIAL E MÉTODOS</b></font></p>

    <p><font face = Verdana size = 2>A amostra de <i>Rosmarinus officinalis</i> L.
foi gentilmente cedida pelo Cantinho das Aromáticas (Vila Nova de Gaia, Portugal),
no estado seco. O seu armazenamento foi realizado num local seco e ao abrigo da
luz.</font></p>

    <p><font face = Verdana size = 2>Na preparação do extrato aquoso
(infusão), a amostra (2&nbsp;g) foi adicionada a 100&nbsp;mL de água destilada em
ebulição, deixada repousar durante 7&nbsp;min e, posteriormente, filtrada com papel
Whatman No. 4. Na preparação do extrato hidroetanólico, a amostra (2&nbsp;g) foi
macerada com 30&nbsp;mL de uma mistura etanol:água (80:20 v/v), durante uma hora.
O processo foi repetido nas mesmas condições à mesma amostra. Posteriormente os
dois extratos obtidos foram combinados e o etanol evaporado. Ambas as amostras foram
congeladas e liofilizadas para posterior utilização.</font></p>

    ]]></body>
<body><![CDATA[<p><font face
= Verdana size = 2>A análise dos compostos fenólicos foi efetuada por cromatografia
líquida de alta eficiência em fase reversa acoplada com deteção por díodos e espetrometria
de massa (HPLC-DAD-ESI/MS). A separação cromatográfica foi efetuada numa coluna
S3 ODS-2 C18 Spherisorb Waters, utilizando como fase móvel uma mistura água/acetonitrilo
com 0,1% de ácido fórmico, em modo gradiente.</font></p>

    <p><font face = Verdana size = 3><b>RESULTADOS E DISCUSSÃO</b></font></p>

    <p><font face = Verdana size = 2>A <a href = "/img/revistas/rca/v40nspe/v40nspea19f1.jpg" target = "_blank">Figura
1</a> mostra o perfil de compostos fenólicos do extrato aquoso de alecrim registado
a 280&nbsp;nm. No <a href = "/img/revistas/rca/v40nspe/v40nspea19q1.jpg" target = "_blank">Quadro 1</a> são apresentadas as possíveis identificações dos compostos
fenólicos presentes no extrato aquoso e hidroetanólico bem como a respetiva quantificação.
Pela observação da tabela é possível verificar que existem diferenças nas quantidades
assim como na composição fenólica das duas preparações, sobretudo no extrato hidroetanólico
onde se verificou a ausência de alguns compostos, nomeadamente, isómero do ácido
litospérmico A, ácido salvianólico B, isómero do ácido litospérmico A e derivados
do ácido cafeico (tetrâmeros).</font></p>

    
<p><font face = Verdana size = 2>Foi registada a presença de compostos fenólicos
com grupos cafeoil, mais especificamente 16 dos 18 compostos detetados, numa concentração
total de 154,52±2&nbsp;mg/g no extrato aquoso e de 34,37±0.99&nbsp;mg/g no extrato
hidroetanólico. Os restantes compostos quantificados correspondem a flavonoides
que foram identificados como derivados de flavonas e que apresentaram concentrações
de 12,3±0,2 e 0,94±0,03&nbsp;mg/g nos extratos aquoso e hidroetanólico, respetivamente.
Relativamente ao extrato hidroetanólico, o extrato aquoso apresentou um teor de
compostos fenólicos total superior, assim como concentrações dos compostos individuais
superiores. O ácido rosmarínico foi o composto mais abundante em ambos os extratos,
com concentrações de 68,5±0,1 e 13,1±0,1&nbsp;mg/g para os extratos aquoso e hidroetanólico,
respetivamente. A presença do ácido rosmarínico, bem como do ácido cafeico em amostras
de alecrim já havia sido descrita anteriormente por outros autores (Ferrer-Gallego
<i>et al</i>., 2014; Vallverdú-Queralt <i>et al</i>., 2014; Maringer <i>et al</i>.,
2015). No entanto, os extratos obtidos neste trabalho revelaram maiores concentrações
de ácido rosmarínico e cafeico comparativamente às concentrações obtidas no trabalho
desenvolvido por Vallverdú-Queralt <i>et al</i>. (2014) que representam, respetivamente,
156,90±3,20 e 12,58±0,44&nbsp;µg/g.</font></p>

    <p><font face = Verdana size = 3><b>CONCLUSÃO</b></font></p>

    <p><font face = Verdana size = 2>Com este estudo, destacou-se a presença de compostos
bioativos no alecrim, sendo o de ácido rosmarínico o composto maioritário relevando
maiores quantidades no extrato aquoso, obtido por um procedimento de infusão. Este
extrato poderá ser utilizado como ingrediente natural no desenvolvimento de alimentos
funcionais, desde de produtos de panificação como em produtos lácteos, com benefícios
para a saúde do consumidor. </font></p>

</br>

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thyme, oregano, cinnamon, cumin and bay. <i>Food Chemistry, </i>vol. 154, p. 299-307.
<a href = "http://dx.doi.org/10.1016/j.foodchem.2013.12.106" target = "_blank">http://dx.doi.org/10.1016/j.foodchem.2013.12.106</a></font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=671941&pid=S0871-018X201700050002000009&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><!-- ref --><p><font face = Verdana
size = 2>Vicente, G.; Molina, S.; González-Vallinas, M.; García-Risco, M.R.; Fornari,
T.; Reglero, G. &amp; Molina, A. M. (2013) – Supercritical rosemary extracts, their
antioxidant activity and effect on hepatic tumor progression. <i>The Journal of
Supercritical Fluids, </i>vol. 79, p. 101-108.
<a href = "http://dx.doi.org/10.1016/j.supflu.2012.07.006" target = "_blank">http://dx.doi.org/10.1016/j.supflu.2012.07.006</a></font>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;[&#160;<a href="javascript:void(0);" onclick="javascript: window.open('/scielo.php?script=sci_nlinks&ref=671942&pid=S0871-018X201700050002000010&lng=','','width=640,height=500,resizable=yes,scrollbars=1,menubar=yes,');">Links</a>&#160;]<!-- end-ref --><p><font face = Verdana size = 3><b>Agradecimentos</b></font></p>

    ]]></body>
<body><![CDATA[<p><font face = Verdana size = 2>FCT pelo financiamento ao CIMO (Projeto PEst-OE/AGR/UI0690/2014).
FCT/MEC e FEDER - Programa PT2020 pelo financiamento ao LSRE (Project UID/EQU/50020/2013).
QREN, ON2 e FEDER (Projeto NORTE-07-0124-FEDER-000014) e PRODER (Projeto nº 46577-
PlantLact).</font></p>

</br>

    <p><font face = Verdana size = 2>Recebido/received: 2016.12.22</font></p>

    <p><font face = Verdana size = 2>Recebido em versão revista/received in revised form: 2017.03.17</font></p>

    <p><font face = Verdana size = 2>Aceite/accepted: 2017.03.17</font></p>

     ]]></body><back>
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