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ocotea obtusata/antioxydant
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10 résultats
Evaluation of the chemical composition and antioxidant activity of extracts and fractions of Ocotea notata (Ness) Mez (Lauraceae).
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The specie Ocotea notata (Nees & Mart). Mez is a tree with 5 meters high, that can be found in restinga regions in the Brazilian coast. This study describes a phytochemical investigation, total phenolic content and the antioxidant activity of extracts and fractions by DPPH and ORAC. Phenolic
Antioxidant capacity of Macaronesian traditional medicinal plants.
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The use of many traditional medicinal plants is often hampered by the absence of a proper biochemical characterization, essential to identify the bioactive compounds present. The leaves from five species endemic to the Macaronesian islands with recognized ethnobotanical applications were analysed:
Chemical Composition, Antimicrobial Activity, and Antioxidant Activity of Ocotea minarum (Nees & Mart.) Mez.
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Ocotea minarum is a native plant from Brazil, popularly known as "canelinha" or "canela vassoura." The objective of this study was to investigate the chemical composition of the extracts of the bark and the leaves of O. minarum and to evaluate its antimicrobial and
Medicinal properties of Ocotea bullata stem bark extracts: phytochemical constituents, antioxidant and anti-inflammatory activity, cytotoxicity and inhibition of carbohydrate-metabolizing enzymes.
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This study evaluates the phytochemical constituents, antioxidant and anti-inflammatory activity, cytotoxicity, and inhibitory activity against carbohydrate metabolism of extracts from Ocotea bullata stem bark.
Hexane, ethyl acetate, methanol and water were used to extract the air-dried sample. The
Composition of the volatile fraction of Ocotea bofo Kunth (Lauraceae) calyces by GC-MS and NMR fingerprinting and its antimicrobial and antioxidant activity.
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The chemical composition of the essential oil obtained by steam distillation of the floral calyces of Ocotea bofo Kunth (Lauraceae) was studied by means of GC, GC-MS, and 1H, 13C, and bidimensional NMR (COSY, HSQC, HMBC). Twenty-five constituents were identified, and estragole (48.7%),
Caracterização e identificação de constituintes químicos de Ocotea paranaensis Brotto, Baitello, Cervi, & EP Santos e suas propriedades biológicas
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Resumo The growing interest in the discovery of new compounds from medicinal plants justifies the study of phytochemical components of these plants and their biological activities. The genus Ocotea exhibits a variety of pharmacological, antimicrobial and antioxidant effects. The aim of the
PHYTOCHEMICAL, ELEMENTAL AND BIOTECHNOLOGICAL STUDY OF CRYPTOCARYA LATIFOLIA.
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BACKGROUND
Existing populations of Cryptocarya latifolia (Lauraceae) are rapidly declining as a consequence of their substitutive use for Ocotea bullata. The uncontrolled and excessive removal of the bark and roots of this species has led to the death of many of these plants and may eventually
Identification of phenolic compounds and biologically related activities from Ocotea odorifera aqueous extract leaves.
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Ocotea odorifera (Vell.) Rohwer is popularly used as food and flavoring. The aim of this study was to determine the chemical composition of the aqueous extract from O. odorifera leaves and evaluate the correlation of their phytochemical composition and biological activities. The antioxidant effect
Chemical Diversity and Biological Activities of Essential Oils from Licaria, Nectrandra and Ocotea Species (Lauraceae) with Occurrence in Brazilian Biomes
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Lauraceae species are known as excellent essential oil (EO) producers, and their taxa are distributed throughout the territory of Brazil. This study presents a systematic review of chemical composition, seasonal studies, occurrence of chemical profiles, and biological activities to EOs of species of
Phyllosphere Metaproteomes of Trees from the Brazilian Atlantic Forest Show High Levels of Functional Redundancy.
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The phyllosphere of the Brazilian Atlantic Forest has been estimated to contain several million bacterial species that are associated with approximately 20000 plant species. Despite the high bacterial diversity in the phyllosphere, the function of these microorganisms and the mechanisms driving
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