نتایج جستجو برای: dpph frap

تعداد نتایج: 11432  

Journal: :Turkish Journal of Agricultural and Natural Science 2021

During the harvest period, garlic heads are collected and processed, while stems leaves discarded. Processing of these sections, forming 10% (w/w) total weight garlic, has great importance in terms both gains for country’s economy to reduce amount solid waste. In our study, some physicochemical analysis were performed, along with phenolic compound, flavonoid matter, antioxidant activity, 2,2-di...

2014
Suwannaporn Boonpeng Sunisa Siripongvutikorn Chutha Sae-wong Pornpong Sutthirak

Cadmium (Cd) contamination is a highly dangerous international problem because it can transfer into the food chain and become bioaccumulated, endangering human health. Cd detoxication is very interesting particularly the method providing no undesirable side effects. Cd also causes lipid oxidation that leads to undesired food quality. Garlic (Allium sativum L.) has been used as conventional food...

2017
Jianming Luo Shiren Song Zheng Wei Yu Huang Yali Zhang Jiang Lu

As a by-product of wine making, pomace contains rich amounts of phenolic compounds that can be potentially utilized as raw materials to make beneficial products especially for the anti-cancer agents including the breast cancer. Muscadinia rotundifolia 'Noble' is a wine-making grape cultivar, and to better use 'Noble' pomace, the most effective phenolic fractions in cancer inhibition must be ide...

Journal: :Molecules 2012
Ibrahim Khalil Mohammed Moniruzzaman Laïd Boukraâ Mokhtar Benhanifia Asiful Islam Nazmul Islam Siti Amrah Sulaiman Siew Hua Gan

The aim of the present study was to characterize the physical, biochemical and antioxidant properties of Algerian honey samples (n = 4). Physical parameters, such as pH, moisture content, electrical conductivity (EC), total dissolved solids (TDS), color intensity, total sugar and sucrose content were measured. Several biochemical and antioxidant tests were performed to determine the antioxidant...

2017
Leila Safaeian Behzad Zolfaghari Mohammadreza Aghaye-Ghazvini Mahya Behnampour

OBJECTIVE Allium elburzense is an endemic plant of the family Amaryllidaceae that grows wild in northern Iran with some nutritional and medicinal applications. The present study was aimed to investigate the fibrinolytic and antioxidant effects of A. elburzense bulb extracts. MATERIALS AND METHODS Hydroalcoholic, aqueous, chloroformic and butanolic extracts were evaluated in this research. In ...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2010
Cigdem Kahraman I Irem Tatli Ilkay Erdogan Orhan Zeliha S Akdemir

The aqueous extract of Verbascum mucronatum Lam. along with its fractions and secondary metabolites were assessed for their antioxidant, acetylcholinesterase (AChE), and butyrylcholinesterase (BChE) inhibitory activities. The antioxidant activity was evaluated by three methods: as 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging activity, ferrous ion-chelating effect, and ferric-reducing...

Journal: :Molecules 2016
Agnieszka Kicel Piotr Michel Aleksandra Owczarek Anna Marchelak Dorota Żyżelewicz Grażyna Budryn Joanna Oracz Monika Anna Olszewska

The antioxidant efficiency of 70% aqueous methanolic extracts from the leaves of twelve selected Cotoneaster Medik. species was evaluated using four complementary in vitro tests based on SET- (single electron transfer) and HAT-type (hydrogen atom transfer) mechanisms (DPPH, FRAP, O₂(•-) and H₂O₂ scavenging assays). The samples exhibited the dose-dependent responses in all assays with activity p...

Journal: :Zeitschrift fur Naturforschung. C, Journal of biosciences 2012
Beatriz Lima Marianela Sánchez Lorena Luna María B Agüero Susana Zacchino Eva Filippa Jorge A Palermo Alejandro Tapia Gabriela E Feresin

The infusion of the aerial parts of Gentianella multicaulis (Gillies ex Griseb.) Fabris (Gentianaceae), locally known as 'nencia', is used in San Juan Province, Argentina, as stomachic and as a bitter tonic against digestive and liver problems. The bioassay-guided isolation of G. multicaulis extracts and structural elucidation of the main compounds responsible for the antifungal and free radica...

2014
Mohd Alfazari Mohd Ghazali Ghanya Al-Naqeb Kesavanarayanan Krishnan Selvarajan Mizaton Hazizul Hasan Aishah Adam

Polygonum minus (Polygonaceae) is a medicinal herb distributed throughout eastern Asia. The present study investigated antiproliferative effect of P. minus and its possible mechanisms. Four extracts (petroleum ether, methanol, ethyl acetate, and water) were prepared by cold maceration. Extracts were subjected to phytochemical screening, antioxidant, and antiproliferative assays; the most bioact...

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