Journal ArticleDOI
The effect of extraction process on polyphenol content, triterpene composition and bioactivity of yellow birch (Betula alleghaniensis Britton) extracts
TLDR
In this paper, ultrasonic assisted extraction of Betula alleghaniensis was investigated and compared with conventional maceration, and the results indicated that the foliage extract has the most potent radical scavenging capacity while wood and twigs extracts exert the highest inhibitory effects on the production of NO in LPS/INFγ-stimulated RAW 264.7 macrophages.About:
This article is published in Industrial Crops and Products.The article was published on 2009-09-01. It has received 75 citations till now. The article focuses on the topics: Yellow birch & Maceration (wine).read more
Citations
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Ultrasound assisted extraction of polyphenols from black chokeberry
TL;DR: In this paper, the influence of various parameters (time and temperature of extraction, solvent composition, solid-solvent ratio, particle size, and ultrasonic irradiations) on the extraction kinetics and yields was evaluated.
Journal ArticleDOI
The effect of different extraction techniques on extraction yield, total phenolic, and anti-radical capacity of extracts from Pinus radiata Bark
TL;DR: In this paper, the performance of four techniques, conventional maceration, Soxhlet extraction, microwave assisted extraction, and ultrasound assisted extraction (UAE), for extraction of Pinus radiata bark, in one and several stages, were evaluated.
Journal ArticleDOI
A Critical Review of Phenolic Compounds Extracted from the Bark of Woody Vascular Plants and Their Potential Biological Activity
TL;DR: The fact that the polyphenolic extracts obtained from the bark of woody vascular plants represent sources of bioactive compounds with antioxidant, immunostimulatory, antimutagenic, antibacterial properties, etc. could be exploited on an industrial scale is highlighted.
Journal ArticleDOI
Comprehensive Review on Betulin as a Potent Anticancer Agent
TL;DR: The anticancer and chemopreventive potential of BE in vitro and in vivo is summarized by carefully dissecting and comparing the doses and tumour lines used in previous studies, as well as focusing on mechanisms underlying its activity at cellular and molecular level, and discuss future prospects.
Journal ArticleDOI
Optimization of microwave-assisted extraction of polyphenols from Quercus bark
Meriem Bouras,Morad Chadni,Francisco J. Barba,Francisco J. Barba,Nabil Grimi,Olivier Bals,Eugène Vorobiev +6 more
TL;DR: In this article, the authors investigated and optimized microwave assisted extraction (MAE) (treatment power and time) of antioxidant compounds, especially polyphenols, from bark extracts, and evaluated the effects of solvent composition (methanol and ethanol) particle size, and pH conditions.
References
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Free radicals and antioxidants in normal physiological functions and human disease
TL;DR: Attention is focussed on the ROS/RNS-linked pathogenesis of cancer, cardiovascular disease, atherosclerosis, hypertension, ischemia/reperfusion injury, diabetes mellitus, neurodegenerative diseases, rheumatoid arthritis, and ageing.
Journal ArticleDOI
Antioxidant activity of plant extracts containing phenolic compounds
Marja P Kähkönen,Anu Hopia,Heikki Vuorela,Jussi-Pekka Rauha,Kalevi Pihlaja,Tytti S. Kujala,Marina Heinonen +6 more
TL;DR: High activities were found in tree materials, especially in willow bark, spruce needles, pine bark and cork, and birch phloem, and in some medicinal plants including heather, bog-rosemary, willow herb, and meadowsweet and potato peel and beetroot peel extracts showed strong antioxidant effects.
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Recent advances in extraction of nutraceuticals from plants
Lijun Wang,Curtis L. Weller +1 more
TL;DR: In this article, a critical review was conducted to introduce and compare the conventional Soxhlet extraction and the new alternative methods used for the extraction of nutraceuticals from plants, and the practical issues of each extraction method were discussed.
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Phenolics as potential antioxidant therapeutic agents: mechanism and actions.
Muhammad A. Soobrattee,Vidushi S. Neergheen,Amitabye Luximon-Ramma,Okezie I. Aruoma,Theeshan Bahorun +4 more
TL;DR: Plant-derived phenolics represents good sources of natural antioxidants, however, further investigation on the molecular mechanism of action of these phytochemicals is crucial to the evaluation of their potential as prophylactic agents.
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The nitric oxide-scavenging properties of Ginkgo biloba extract EGb 761.
TL;DR: Data implicate Ginkgo biloba extract EGb 761 as a potential therapeutic agent in conditions of altered production of nitric oxide in in vitro acellular systems.