Allergenic 5-alkyl- and 5-alkenylresorcinols from philodendron species

Reffstrup, Torsten; Boll, Per M.

doi:10.1016/s0031-9422(00)80668-8

Cited by 30 publications

(12 citation statements)

References 9 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Normalmente são caracterizados pela presença de grupo fenol ligado a uma cadeia alquílica com número ímpar de carbono. Ocorrem como fenóis simples 69 ou derivados catecólicos 70,71 , resorcinólicos 61,72 ou hidroquinônicos 73,74 , sendo os resorcinólicos os mais abundantes na natureza 4,68 . Além da variação em número e posição relativa dos grupos hidroxílicos no anel aromático, os lipídios fenólicos apresentam cadeias alquílicas com diferentes comprimentos, grau de insaturação e posição das ligações duplas 1 .…”

Section: Lipídios Fenólicos E Derivadosunclassified

Metabólitos secundários de espécies de Anacardiaceae

Correia¹,

David²,

David³

2006

Quím. Nova

View full text Add to dashboard Cite

Recebido em 18/5/05; aceito em 14/11/05; publicado na web 13/7/06 SECUNDARY METABOLITES FROM SPECIES OF ANACARDIACEAE. This review describes some aspects of the family Anacardiaceae dealing with the presence and distribution of secondary metabolites in the main genera of this family and their biological activities. It reports the occurrence of different natural compounds present in their species with special emphasis on phenolic lipids, flavonoids and triterpenes that are typical metabolites of this family.Keywords: Anacardiaceae; phenolic lipids; flavonoids. INTRODUÇÃOAnacardiaceae é uma família constituída por cerca de 76 gêne-ros e 600 espécies. Seus gêneros são subdivididos em cinco tribos (Anacardieae, Dobineae, Rhoeae, Semecarpeae e Spondiadeae). Cerca de 25% dos gêneros dessa família são conhecidos como tó-xicos e causadores de dermatite de contato severa. De modo geral, as espécies venenosas desta família estão restritas às tribos Anacardieae, Rhoeae e Semecarpeae 1,2 . A dermatite de contato provocada por essas plantas é atribuída principalmente a compostos fenólicos e catecólicos ou a mistura destas substâncias, denominados lipídios fenólicos. Estas substâncias podem estar presentes em diferentes partes do material vegetal, ocorrendo principalmente em espécies do gênero Rhus 3,4 . Nos últimos anos, a origem dos lipídios fenólicos e derivados também foi objeto de investigação; além disso, espécies da família Anacardiaceae têm se mostrado bastante promissoras na busca de substâncias bioativas. Do ponto de vista químico, os gêneros mais estudados nesta família são Mangifera, Rhus (Toxicodendron), Anacardium, Spondias, Lannea, Semecarpus, Schinus, Pistacia, Lithraea, Tapirira e Melanorrhoea. Mangifera, Rhus e Anacardium destacam-se pelo número de investigações relativas à composição química de suas espécies e atividades biológicas de seus extratos e metabólitos. Os estudos destas espécies possibilitaram verificar a ocorrência de flavonóides, terpenos, esteróides, xantonas e, principalmente, dos lipídios fenó-licos e derivados. Destaca-se que entre os flavonóides, os biflavonóides são os mais freqüentes.

show abstract

Section: Lipídios Fenólicos E Derivadosunclassified

Metabólitos secundários de espécies de Anacardiaceae

Correia¹,

David²,

David³

2006

Quím. Nova

View full text Add to dashboard Cite

show abstract

“…80 ARs from cashew nut shell liquid and poison ivy are also known to be skin irritants. 112 Olivetol (C5:0) has been used as a precursor compound for the synthesis of (Ϫ)Ϫ⌬ 1 -tetrahydrocannabinol. 113 Liposomes made from ARs and chemically modified ARs have been proposed as a way of improving drug delivery.…”

Section: Miscellaneous Properties Of Alkylresorcinolsmentioning

confidence: 99%

Dietary Alkylresorcinols: Absorption, Bioactivities, and Possible Use as Biomarkers of Whole-grain Wheat- and Rye-rich Foods

2004

View full text Add to dashboard Cite

The biologic and chemical properties of alkylresorcinols (ARs) have been reviewed previously, but there has been relatively little research or focus on the importance of ARs in food and diet. ARs represent a significant proportion of the phytochemicals present in wheat and rye, in which they normally exist in concentrations between 300 and 1500 microg/g. ARs are concentrated in the bran fraction of these cereals, and are therefore a significant component of food products rich in whole grain wheat and rye but not in products containing only refined cereal flour. In this review, we discuss the presence of ARs in food, methods of analysis, their absorption and role in the diet in light of their in vitro bioactivities, and their possible use as biomarkers of whole-grain wheat and rye intake.

show abstract

“…Alkylresorcinols (AR) are amphiphilic phenolic lipids found in plants from a number of different families notably the Anacardiaceae (such as poison ivy, cashew nut shell, poison oak), Proteaceae (such as Grevilla pyramidalis), Gramineae (such as cereal grains), Araceae (such as Philodendron scandens), and certain bacterial and algae sources (Madrigal et al 1977, Tyman 1979, Reffstrup et al 1982, Reffstrup and Boll 1985, Bandyopadhyay et al 1985.…”

mentioning

confidence: 99%

Effects of Fermentation and Baking of Whole Wheat and Whole Rye Sourdough Breads on Cereal Alkylresorcinols

Winata

Lorenz

1997

Cereal Chem

View full text Add to dashboard Cite

Cereal Chem. 74(3):284-287Alkylresorcinol (AR) content was determined in multiple-stage whole wheat and whole rye flour sours, as well as in whole wheat and whole rye flour doughs and breads. AR content decreased considerably during fermentation and baking. AR content was reduced by 20 and 46%, respectively, at the end of sourdough starter fermentation of whole wheat and whole rye flour sours. AR content, which was 512 and 210 µg/g in whole rye and whole wheat flour doughs, respectively, was 30 and 0 µg/g, respectively, after baking of breads. Synthetic AR added at different levels to doughs was also greatly reduced during fermentation and baking. 2 Corresponding author. Fax: 970/491-7252.

show abstract

Allergenic 5-alkyl- and 5-alkenylresorcinols from philodendron species

Cited by 30 publications

References 9 publications

Metabólitos secundários de espécies de Anacardiaceae

Metabólitos secundários de espécies de Anacardiaceae

Dietary Alkylresorcinols: Absorption, Bioactivities, and Possible Use as Biomarkers of Whole-grain Wheat- and Rye-rich Foods

Effects of Fermentation and Baking of Whole Wheat and Whole Rye Sourdough Breads on Cereal Alkylresorcinols

Contact Info

Product

Resources

About