نتایج جستجو برای: antioxidant properties

تعداد نتایج: 946461  

پایان نامه :دانشگاه آزاد اسلامی - دانشگاه آزاد اسلامی واحد تهران مرکزی - دانشکده علوم پایه 1391

one of the applications of nanotechnology is use of carbon nanotubes for the targeted delivery of drug molecules. to demonstrate the physical and chemical properties of biomolecules and identify new material of drug properties, the interaction of carbon nanotubes (cnts) with biomolecules is a subject of many investigations. cnts is a synthetic compound with extraordinary mechanical, thermal, el...

2017
Prashant Sakharkar Balwantsinh Chauhan

OBJECTIVE Little knowledge is available on the antimicrobial and antioxidant properties of Coccina grandis fruits and no study has reported on its cell proliferative property. The aim of this study was to examine the antimicrobial, antioxidant and cell proliferative property of fruits of C. grandis. MATERIALS AND METHODS Fruits of C. grandis were extracted using water; ethanol and acetone by ...

ارومیه‌ای, عبدالرسول, تاجیک, حسین , رضوی روحانی, سید مهدی, مهدی زاده , تورج ,

Background & Aims: Biocompatible packaging based on edible films containing active agents used in food to improve quality, extending product shelf life and reducing the risk of pathogen growth . The objective of this study was to prepare composite films from chitosan and starch containing 0, 0.5, 1 and 2% pomegranate pell extract (PPE) and to evaluate their antimicrobial, antioxidant and optica...

Journal: :General pharmacology 1997
G P Biewenga G R Haenen A Bast

1. Lipoic acid is an example of an existing drug whose therapeutic effect has been related to its antioxidant activity. 2. Antioxidant activity is a relative concept: it depends on the kind of oxidative stress and the kind of oxidizable substrate (e.g., DNA, lipid, protein). 3. In vitro, the final antioxidant activity of lipoic acid is determined by its concentration and by its antioxidant prop...

2014
Hye Yeon Choi Seung Woo Kim BongWoo Kim Hae Na Lee Su-Jeong Kim Minjung Song Sol Kim Jungho Kim Young Bong Kim Jin-Hoi Kim Ssang-Goo Cho

Placenta, as a reservoir of nutrients, has been widely used in medical and cosmetic materials. Here, we focused on the antioxidant properties of placental extract and attempted to isolate and identify the main antioxidant factors. Porcine placental extracts were prepared through homogenization or acid hydrolysis, and their antioxidant activity was investigated in the human keratinocyte HaCaT ce...

Background: There is growing demand to improve physicochemical, microbiological, and sensory properties of fresh foods using natural herbal antimicrobial and antioxidant compounds. The aim of the present study was to investigate antioxidant and antibacterial properties of some native edible plants of Kermanshah, Western Iran. Methods: The methanolic extracts of leaves of Falcaria vulgaris, All...

2015
Eun-Yi Koa Daekyung Kim Seong Woon Roh Weon-Jong Yoonc You-Jin Jeon Ginnae Ahn Kil-Nam Kim

In this study, the antioxidant properties of 80 % ethanol extracts of 16 species of plants from Jeju Island in Korea were evaluated using various antioxidant assays, including the DPPH (1,1-Diphenyl-2-pricrylhydrazyl) radical scavenging, superoxide scavenging, xanthine oxidase inhibition and hydrogen peroxide scavenging activities. Among the 16 plant extracts tested, CN-13 showed strong antioxi...

Journal: :Molecules 2012
Jin-Zhe He Qiao-Mei Ru Dan-Dan Dong Pei-Long Sun

Four crude water soluble polysaccharides, CABP, CAAP, CFVP and CLDP, were isolated from common edible mushrooms, including Agaricus bisporus, Auricularia auricula, Flammulina velutipes and Lentinus edodes, and their chemical characteristics and antioxidant properties were determined. Fourier Transform-infrared analysis showed that the four crude polysaccharides were all composed of β-glycoside ...

Journal: :Biochemical and biophysical research communications 2007
Tehila Tannin-Spitz Margalit Bergman Shlomo Grossman

The cucurbitacins are of great interest because of the wide range of biological activities they exhibit in plants and animals. We studied the antioxidant properties of cucurbitacin B + E glucosides (cucurbitacin glucoside combination, CGC) and their direct free-radical scavenging properties, using ESR spectroscopy. Antioxidant activity was measured by the ability of the CGC to reduce preformed ...

2014
Gianna Ferretti Davide Neri Tiziana Bacchetti

Sweet and sour cherries contain several polyphenols that possess antioxidant and anti-inflammatory properties. Aim of this study was to investigate the effect of the maturity stage on phenol content and biological properties of extract of a local Morello-type of sour cherry (Prunus cerasus L.), “visciola”. The study of total phenol content and total antioxidant potential was associated with the...

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