Caffeoylquinic Acids
Mostrando 1-12 de 15 artigos, teses e dissertações.
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1. Simultaneous HPTLC quantification of three caffeoylquinic acids in Pluchea indica leaves and their commercial products in Thailand
ABSTRACT In Thai traditional medicine, Pluchea indica (L.) Less., Asteraceae, leaf has been widely used for the treatment of diabetes mellitus, tumors, hypertension, cystitis, and wounds. P. indica herbal tea is commercially available in Thailand as a health-promoting drink. The study was conducted to develop and validate a high-performance thin-layer chroma
Rev. bras. farmacogn.. Publicado em: 27/05/2019
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2. Anti-allergic rhinitis effects of caffeoylquinic acids from the fruits of Xanthium strumarium in rodent animals via alleviating allergic and inflammatory reactions
Abstract The fruits of Xanthium strumarium L., Asteraceae, have been used for various diseases in Chinese folk medicine, including allergic rhinitis, tympanitis, arthritis, ozena etc. The current study was aimed to investigate the therapeutic effects of caffeoylquinic acids from fruits of X. strumarium on allergic rhinitis in animals. The toxicity test indic
Rev. bras. farmacogn.. Publicado em: 2019-02
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3. Optimization of extraction method and HPLC analysis of six caffeoylquinic acids in Pluchea indica leaves from different provenances in Thailand
ABSTRACT Pluchea indica (L.) Less., Asteraceae, is a medicinal plant which contains a high amount of phenolic compounds such as caffeoylquinic acid derivatives. The leaves have been traditionally used as a nerve tonic and extensively as herbal tea. This study aimed to develop and validate an HPLC method to quantitatively analyze six caffeoylquinic acid deriv
Rev. bras. farmacogn.. Publicado em: 2018-04
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4. A New Furanoheliangolide Sesquiterpene Lactone from Calea pinnatifida (R. Br.) Less. (Asteraceae) and Evaluation of Its Trypanocidal and Leishmanicidal Activities
Calea pinnatifida (R. Br.) Less. is commonly known in Brazil as "cipó-cruz", "quebra-tudo" or "aruca". This species is employed in folk medicine as giardicidal, amoebicidal and to treat digestive disorders. The present paper describes the isolation and structure determination of a new furanoheliangolide sesquiterpene lactone named 11,13-dihydroxy-calaxin, i
J. Braz. Chem. Soc.. Publicado em: 2017-02
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5. Inhibition of HMG-CoA reductase activity and cholesterol permeation through Caco-2 cells by caffeoylquinic acids from Vernonia condensata leaves
ABSTRACT The aim of this study was to provide scientific knowledge to support the use of Vernonia condensata Baker, Asteraceae, beverages for their alleged hypocholesterolemic properties by testing their action as HMG-CoA reductase inhibitors and their capacity to lower dietary cholesterol permeation. Chlorogenic acid, and other caffeoylquinic acids derivati
Rev. bras. farmacogn.. Publicado em: 2016-12
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6. Dendranthema grandiflorum, a hybrid ornamental plant, is a source of larvicidal compounds against Aedes aegypti larvae
Abstract In hybrid cultivated form, Dendranthema grandiflorum (Ramat.) Kitam., Asteraceae, flowers (Chrysanthemum morifolium Ramat.) were utilized in the production of extracts, which were analyzed for larvicidal activity against Aedes aegypti third instar larvae. Methanol and dichloromethane extracts showed LC50 values of 5.02 and 5.93 ppm, respectively. Us
Rev. bras. farmacogn.. Publicado em: 2016-06
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7. Constituintes químicos e avaliação das atividades antioxidante e anti-inflamatória das raízes de Sabicea brasiliensis wernh (Rubiaceae)
The phytochemical investigation of Sabicea brasiliensis roots led to the isolation of 5-O-caffeoylquinic acid, 3,5- and 4,5-O-dicaffeoylquinics acids, scopoletin, ursolic acid, a mixture of β-sitosterol, stigmasterol and campesterol, daucosterol and saccharose. The structures of the isolated compounds were assigned on the basis of one- and two-dimensional N
Quím. Nova. Publicado em: 2014
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8. Effect of fertilisation and harvest period on polar metabolites of Calendula oficcinalis
The present study evaluated the chemical profile of polar extracts of Calendula officinalis L., Asteraceae, that were grown under different cultivation conditions: chemical fertilisation, organic fertilisation and mulching. Furthermore, we investigated metabolite variations during plant development by comparing the metabolites from harvested plants at 60 and
Rev. bras. farmacogn.. Publicado em: 2013-10
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9. Chemical profiling of six samples of Brazilian propolis
Six samples of Brazilian propolis from Minas Gerais and Paraná states were analyzed to identify the constituents (GC/MS and HPLC/MS) and to determine their contents (HPLC and external standardization). All samples contained characteristic constituents of green propolis, but the samples from Minas Gerais had higher contents of prenylated phenylpropanoids and
Quím. Nova. Publicado em: 2013
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10. Seasonal variation of the major secondary metabolites present in the extract of Eremanthus mattogrossensis Less (Asteraceae: Vernonieae) leaves
The species Eremanthus mattogrossensis, known as "veludo do cerrado" (cerrado velvet), is native to the Brazilian Cerrado. Because the amount of metabolites present in plants may be influenced by biological and environmental factors, here we conducted an HPLC-DAD-MS/MS investigation of the metabolite concentrations found in the MeOH/H2O extract of the leaves
Quím. Nova. Publicado em: 2012
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11. Chá mate (Ilex paraguariensis): compostos bioativos e relação com atividade biológica / Mate tea (Ilex paraguariensis): bioactive compounds and relationship with biological activity
Introduction: Yerba maté (Ilex paraguariensis St. Hilaire) is a spontaneous species that grows in Brazil, Argentina and Paraguay and several beverages (chimarrão, terere, maté tea) are produced from its leaves. Maté tea, one of I. paraguariensis beverages present antioxidant activity and other biological effects. Compounds such as aponins, polyphenols an
Publicado em: 2009
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12. HPLC-ESI-MS/MS analysis of oxidized di-caffeoylquinic acids generated by metalloporphyrin-catalyzed reactions
This paper reports an HPLC-ESI-MS/MS investigation on the oxidation of 3,5- and 4,5- dicaffeoylquinic acid using iron(III) tetraphenylporphyrin chloride as catalyst. Two major mono-oxidised products of the quinic acid moiety have been identified for both compounds. However, only the 4,5-derivative afforded two different tri-oxo products. Thus, it seems that
Química Nova. Publicado em: 2008