نتایج جستجو برای: total phenolic compounds and antioxidant activity

تعداد نتایج: 17036370  

2012
C. V. Sruthi A. Sindhu

BACKGROUND The five kashayams (kwaths - decoctions) Manjishtadi kashayam (MK), Rasna erandadi kashayam (REK), Sahacharadhi kashayam (SK), Maharasnadi (or Rasna dwiguna bhagam) kashayam (MRK) and Dhanwantharam kashayam (DK) are widely used in the management of diseases manifested due to vitiation of vata and vatarakta (mostly diseases of connective tissues, bones, joints and nervous system). Fre...

Scutellaria is widely used in traditional medicine as a medical plant, in Asian countries, especially in China. It has been applied in treatment because of its sedative, antithrombotic, anti-inflammatory, antioxidant, and antiviral effects. Scutellaria condensata Rech. f. subsp. pycnotricha (Rech. f.) Rech. f. is a wild perennial plant which  grows in Iran. In this study, GC-FID and GC-MS were ...

Ayse Afacan Makascı Havser Ertem Vaizogullar Pinar Ili, Ramazan Mammadov

Free radicals involved in a number of diseases due to the oxidative damage to DNA, lipids, and proteins and which can result in failure of cellular functions. Dried plant bulbs and leaves methanolic and ethanolic extracts were prepared. Total antioxidant activities of the methanolic extracts of Romulea ramiflora and Gagea fibrosa were determined using β-caroten-linoleic acid assay. Romulea-...

2014
Iordanka Alexieva Dasha Mihaylova Aneta Popova

The antioxidant activity of aqueous extracts of fresh leaves of costmary (Chrysanthemum balsamita L.) was investigated. The effect of the extraction time on total phenolic compounds (TPhC) and antioxidant activity (ABTS -, CUPRACand FRAP assays) was studied. Results demonstrated highest levels of TPhC (0.60 GAE/g fresh plant weight), CUPRAC (5.93 μMTE/g FW), ABTS (10.68 μMTE/g FW), and FRAP (7....

Journal: :Molecules 2010
Hélio Faustino Nuno Gil Cecília Baptista Ana Paula Duarte

The antioxidant activity of the phenolic compounds present in industrial black liquors obtained from the two cooking processes (kraft and sulphite) used in Portugal to produce Eucalyptus globulus pulp was evaluated. The black liquors treated at several pH values were extracted with ethyl acetate. Phenolic fractions were further separated by liquid chromatography of the crude extracts of kraft l...

2012
Krzysztof Dwiecki Aleksander Siger Jarosław Czubiński Małgorzata Nogala-Kałucka Eleonora Lampart-Szczapa

The focus of the present research was to study inhibition of lipoxygenase activity by rapeseed native polyphenols and the interactions between those compounds and the enzyme. The enzyme and polyphenolic compounds (polyphenols, phenolic acids) were extracted from rapeseed (Brassica napus) varieties Aviso and PR45DO3. The total phenolic compounds concentration in tested rapeseed was 1,485-1,691 m...

Journal: :Agronomy 2022

The consumption of mushrooms has considerably increased in recent years because their beneficial nutritional properties due to essential amino acids, proteins, and dietary fiber content. Recent research shown that they are also rich polysaccharides phenolic compounds. These compounds exhibit decisive free radical ROS scavenging power with potential application the treatment neurodegenerative di...

Journal: :nutrition and food sciences research 0
nazanin amirasgari department of food science and technology, science and research branch, islamic azad university, mazandaran, iran. hossein mirsaeedghazi department of food technology, college of abouraihan, university of tehran, pakdasht, iran.

background and objectives: red beet extract concentrate can be used as a natural colorant in food products; however, destructive effects of thermal methods to produce juice concentrate decrease nutritional value in the final product. materials and methods: in this study, red beet extract was concentrated using osmotic distillation method, and the best pretreatment was evaluated to increase the ...

2012
Somayeh Naghiloo Ali Movafeghi Abbas Delazar Hosein Nazemiyeh Solmaz Asnaashari Mohammad Reza Dadpour

The genus Astragalus is a rich source of a variety of biologically active compounds including phenols, saponins, polysaccharides and essential oils. The present study was conducted to determine ontogenetic variation of the volatile organic compounds as well as total phenolic contents and antioxidant activity in leaves of A. compactus. The leaves of plant were harvested at vegetative, flowering ...

Journal: :Food technology and biotechnology 2015
Mandica-Tamara Tolić Irena Landeka Jurčević Ines Panjkota Krbavčić Ksenija Marković Nada Vahčić

Chokeberries (Aronia melanocarpa) are rarely used in diet in Croatia but they have high content of polyphenolic compounds and one of the highest in vitro antioxidant activities among fruits. The aim of this study is to compare the quality, phenolic content and antioxidant capacity of different chokeberry products (juices, powders, fruit tea, capsules and dried berries). It can be expected that ...

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