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araucaria hunsteinii/antioxidant
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15 resultater
Evaluation of volatile compounds, phenolic acids, antioxidant potential and DFT study of essential oils from different parts of Araucaria columnaris (G. Frost.) Hook. from India.
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This study is aimed to investigate the aroma composition, phenolic acid, antioxidant activities and computational analysis of essential oils of five different parts of A. columnaris (G. Frost.) Hook. from India. The essential oils were obtained from the fresh root, stem, leaves, bark, and branch of
Pehuén (Araucaria araucana) seed residues are a valuable source of natural antioxidants with nutraceutical, chemoprotective and metal corrosion-inhibiting properties
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In the last decade, green chemistry has been attracting great interest in many contexts, including, among others, natural antioxidants. However, only a few works deal with natural residue extracts and biowaste, which could be an efficient, economical and environmentally friendly source for the
Antioxidant activity and low cytotoxicity of extracts and isolated compounds from Araucaria angustifolia dead bark.
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The antioxidant activities of the extract and its relevant fraction as well as isolated compounds from the dead bark of Araucaria angustifolia are presented. This tree represents the Mixed Ombrophile Forest, which is endangered due to extensive logging. The dead bark of Araucaria is naturally
Phytochemical profile, antioxidant potential and DFT study of Araucaria columnaris (G. Forst.) Hook. Branch extracts.
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In the present study, phytochemical investigation, antioxidant potential and quantum study on the dichloromethane (DCM) and ethanol extracts of Araucaria columnaris (G. Forst.) Hook. branches have been carried out. The ethanol extract has higher total bioactive contents as compare with DCM
Antioxidant and Antigenotoxic Activities of the Brazilian Pine Araucaria angustifolia (Bert.) O. Kuntze.
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Polyphenols are natural products with recognized potential in drug discovery and development. We aimed to evaluate the polyphenolic profile of Araucaria angustifolia bracts, and their ability to scavenge reactive species. The antioxidant and antigenotoxic effects of A. angustifolia polyphenols in
Antioxidant and antimicrobial activity of Araucaria cookii and Brassaia actinophylla.
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Araucaria cookii is an ornamental plant, which are evergreen conifer found in India and in many other European countries. Similarly Brassaia actinophylla is also an ornamental plant with its native from Java, Australia and in U.S. Though these plants are used for various purposes, the medicinal
Systematic study on the extraction of antioxidants from pinhão (araucaria angustifolia (bertol.) Kuntze) coat.
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Food by-products containing bioactive substances have attracted attention due to the possibility of adding values to residues of the food industry. In this work, the extraction of phenolic compounds from pinhão seed coats (Araucaria angustifolia (Bertol.) Kuntze) using a central composite rotatable
Chemical and antioxidant investigations: Norfolk pine needles (Araucaria excelsa).
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Chemical investigations from a foliar extract of Araucaria excelsa (Lamb.) (Araucariaceae) resulted in the identification of seven phenolic metabolites including one flavananol, one flavananol 3-O-glycoside, four C-glycoside flavonoids, and one phenolic acid. Structures were elucidated by spectral
Araucaria angustifolia (Bertol.) Kuntze extract as a source of phenolic compounds in TPS/PBAT active films.
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There is growing interest in the development of biodegradable packaging materials containing natural antioxidant extracts. In this sense, the use of extracts obtained from agro-industrial byproducts has proved to be a sustainable alternative. In this study, Pinhão extract, a byproduct of Pinhão
Quantitative proteomic analysis of Araucaria angustifolia (Bertol.) Kuntze cell lines with contrasting embryogenic potential.
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GeLC–MS/MS based label free proteomic profiling was used in the large scale identification and quantification of proteins from Brazilian pine (Araucaria angustifolia) embryogenic cell (EC) lines that showed different propensities to form somatic embryos. Using a predicted protein sequence database
Protective effect of biflavones from Araucaria bidwillii Hook in rat cerebral ischemia/reperfusion induced oxidative stress.
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Oxidative stress is implicated in the pathogenesis of ischemic brain injury. Flavonoids from various herbal extracts have been shown to be neuroprotective in experimental models of cerebral ischemia/reperfusion (I/R). The present study was designed to investigate the neuroprotective effect of the
Purification, characterization and utilization of polysaccharide of Araucaria heterophylla gum for the synthesis of curcumin loaded nanocarrier.
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In this study, gum of Araucaria heterophylla was collected. The collected gum was subjected for extraction of polysaccharide using solvent extraction system. Thus, extracted polysaccharide was further purified using solvent method and was characterized using UV-Vis spectroscopy, Phenol sulfuric acid
Mitochondria and redox homoeostasis as chemotherapeutic targets of Araucaria angustifolia (Bert.) O. Kuntze in human larynx HEp-2 cancer cells.
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Natural products are among one of the most promising fields in finding new molecular targets in cancer therapy. Laryngeal carcinoma is one of the most common cancers affecting the head and neck regions, and is associated with high morbidity rate if left untreated. The aim of this study was to
Biflavonoids from Brazilian pine Araucaria angustifolia as potentials protective agents against DNA damage and lipoperoxidation.
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A biflavonoid fraction (BFF) obtained from Araucaria angustifolia needles was effective to quench singlet oxygen (1O2), to protect plasmid DNA against single strand break (ssb) caused by 1O2 or Fenton reaction and to inhibit Fenton or UV radiation-induced lipoperoxidation in phosphatidylcholine
Enzymatic and non-enzymatic protective mechanisms in recalcitrant seeds of Araucaria bidwillii subjected to desiccation.
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The changes in several antioxidants as well as in the level of C-centered free radicals and thiobarbituric acid reactive substances (TBARS) were studied in seeds of Araucaria bidwillii Hook desiccated to 37%, 28% and 21% moisture content. The lowest-safe moisture content for the seedling
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