Polyphenolic composition of bark extracts fromEucalyptus camaldulensis, E. globulus andE. rudis

descriptionPublicationkeyboard_double_arrow_right Article 01 May 1996 Spain English Publisher:Springer Science and Business Media LLCJournal:Holz als Roh- und Werkstoff, volume 54, pages 175-181 (issn: 0018-3768, eissn: 1436-736X,

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Authors: Conde, Elvira; Cadahía, Estrella; Díez Barra, Rafael; García-Vallejo, M. C.;

doi: 10.1007/s001070050162

handle: 10261/292444

Polyphenolic composition of bark extracts fromEucalyptus camaldulensis, E. globulus andE. rudis

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Abstract

Polyphenolic composition (flavonoids and phenolic acids and aldehydes) is studied in the Et2O soluble fractions of the methanolic extracts ofEucalyptus camaldulensis, E. globulus andE. rudis bark. Gallic, protocatechuic, vanillic and ellagic acids, and protocatechuic aldehyde were identified in the three species; eriodictyol, quercetin and naringenin, inE. camaldulensis andE. globulus; vanillin, inE. camaldulensis andE. rudis; naringin, quercitrin, luteolin and kaempferol, inE. camaldulensis; taxifolin and apigenin, inE. globulus; and methyl benzoates and cinnamates, inE. rudis. Some unidentified ellagitannins, flavonols and flavanones were also detected. Significant differences in composition among species were found:E. rudis showed the lowest concentration in flavonoids andE. globulus presented higher concentration and variety of ellagitannins than the others.

Country

Spain

Related Organizations

Spanish National Research Council
Spain
Center for International Forestry Research
Indonesia

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