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Polyphenolic content and antioxidant activity of an extractive fraction from Abies alba bark.

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The wood of mature Abies alba Mill. (silver fir) trees is used in construction and furniture industries, the bark being the main waste product. OBJECTIVE This study aimed to investigate possible therapeutic applications of Abies alba bark waste. METHODS A raw extract and four extractive fractions

Oxidative DNA damage preventive activity and antioxidant potential of plants used in Unani system of medicine.

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BACKGROUND There is increasing recognition that many of today's diseases are due to the "oxidative stress" that results from an imbalance between the formation and neutralization of reactive molecules such as reactive oxygen species (ROS) and reactive nitrogen species (RNS), which can be removed

Root-Associated Microbial Communities of Abies nordmanniana: Insights Into Interactions of Microbial Communities With Antioxidative Enzymes and Plant Growth.

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Abies nordmanniana is a major Christmas tree species in Europe, but their uneven and prolonged growth slows down their production. By a 16S and 18S rRNA gene amplicon sequencing approach, we performed a characterization of root-associated bacterial and fungal communities for three-year-old

In vitro antioxidant activity of extracts from the leaves of Abies pindrow Royle.

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Traditionally, the leaves of Abies pindrow Royle are employed as an ayurvedic remedy for fever, hypoglycaemic, respiratory and inflammatory conditions. In this study, dichloromethane, methanol and acetone extracts of A. pindrow leaves were analysed for their phytochemical content and in vitro

Composition, antimicrobial and antioxidant activities of seven essential oils from the North American boreal forest.

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Essential oils (EOs) were steam-extracted from the needles and twigs of balsam fir, black spruce, white spruce, tamarack, jack pine and eastern white cedar that remained after logging in eastern Canada. These EOs, similarly to that from Labrador tea and other commercial EOs from Chinese cinnamon,

Effect of SO(2) and O(3) on Production of Antioxidants in Conifers.

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Production of antioxidants was investigated in needles of fir (Abies alba Mill.) and spruce (Picea abies (L.) Karst) after exposure to low concentrations of SO(2), O(3), and a combination of both pollutants. Glutathione reacted most sensitively to pollutants followed by vitamin E and vitamin C. In

Derivatives of the Lignan 7'-Hydroxymatairesinol with Antioxidant Properties and Enhanced Lipophilicity.

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The lignan 7'-hydroxymatairesinol (1), extracted from the knotwoods of fir (Abies alba), spruce (Picea abies), and Douglas fir (Pseudotsuga menziesii), exhibited unexpected reactivity when esterification reactions were attempted on the hydroxy group at position C-7'. To circumvent the rapid

Response of antioxidative enzymes of Abies firma seedlings under chronic acid fog exposure and/or drought treatment.

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To understand the oxidative stress conditions of momi fir (Abies firma Sieb. et Zucc.) seedlings under acid fog exposure and/or drought stress, we assayed the activities of antioxidative enzymes, such as superoxide dismutase (SOD), catalase (CAT), and ascorbate peroxidase (APX), in the seedlings. We

Calli cultures from Abies equi-trojani (Aschers et Sinten) and changes in antioxidant defense system enzymes.

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This study was conducted to explain difficulties of indirect regeneration of forest trees in tissue culture conditions. For this purpose, changes of antioxidant defense system enzymes; superoxide dismutase (SOD), peroxidase (POD) activities were determined during calli formation on young apical

Lipase inhibitory and LDL anti-oxidative triterpenes from Abies sibirica.

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A methanol extract of Abies sibirica Ladeb, a Mongolian medicinal plant, had an inhibitory effect on both lipase activity in mouse plasma and LDL anti-oxidative activity, which are preventative factors for arteriosclerosis. The extract was fractionated by silica gel column chromatography and its

Phytochemical and antioxidant-related investigations on bark of Abies spectabilis (D. Don) Spach. from Nepal.

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The bark of several coniferous species, a waste product of the timber industry, contains significant amounts of natural antioxidants. In our ongoing studies of Nepalese medicinal plants, we examined the bark from Abies spectabilis as the starting material for extracting antioxidant compounds. In

Affordable Production of Antioxidant Aqueous Solutions by Hydrodynamic Cavitation Processing of Silver Fir (Abies alba Mill.) Needles.

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Extracts from parts of coniferous trees have received increased interest due to their valuable bioactive compounds and properties, useful for plenty of experimental and consolidated applications, in fields comprising nutraceutics, cosmetics, pharmacology, food preservation, and stimulation of plant

Evaluation of the Antioxidant Capacity, Antimicrobial and Antiproliferative Potential of Fir (Abies alba Mill.) Honeydew Honey Collected from Gorski kotar (Croatia).

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The paper examines the antiproliferative, antimicrobial and antioxidative effects of fir (Abies alba Mill.) honeydew honey from mountain region of Croatia (Gorski kotar) as a potential replacement for standard antibiotics and chemotherapeutic agents. Cell viability, annexin V assay and flow

Antioxidant Potential of Bark Extracts from Boreal Forest Conifers.

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The bark of boreal forest conifers has been traditionally used by Native Americans to treat various ailments and diseases. Some of these diseases involve reactive oxygen species (ROS) that can be prevented by the consumption of antioxidants such as phenolic compounds that can be found in medicinal

Evaluation of antioxidant and antimicrobial activities on various extracts of Himalayan medicinal plants.

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The DPPH radical scavenging potentials of the fractions were determined in comparison to positive controls such as quercetin with EC₅₀ = 4.12±1.27, ascorbic acid with EC₅₀ = 6.20±1.67, gallic acid with EC₅₀ = 4.75±1.24 and α-tocopherol with EC₅₀ =

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