نتایج جستجو برای: phenolic and flavonoid compounds

تعداد نتایج: 16856394  

Journal: :international journal of horticultural science and technology 2014
mohammad javad nazarideljou zahra heidari

the drastic decline of precipitation over the past decade along with overuse of chemical inputs and consequent soil fertility reduction are the most important problems in the approach to agricultural expansion, particularly in urban landscaping. therefore, an experiment was designed to examine the effects of different irrigation levels (40, 70 and 100 % of field capacity, or fc) and different v...

Journal: :avicenna journal of phytomedicine 0
fereshte saboonchian department of biology, faculty of science, urmia university, urmia, i. r. iran rashid jamei department of biology, faculty of science, urmia university, urmia, i. r. iran siavash hosseini sarghein department of biology, faculty of science, urmia university, urmia, i. r. iran

objectives: leaves and flowers ofelaeagnus angustifolia contain phenolic and flavonoid compounds. these compounds have antioxidant properties that protect cells from oxidative damage. the aim of this study was to determine and analyze total phenolic and flavonoid content of leaves and flowers in two e. angustifolia variants using different solvents (ethanol and methanol). materials and methods:...

Journal: :فرآوری و نگهداری مواد غذایی 0
زهرا نصیری فر دانشجوی کارشناسی ارشد علوم و صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان علیرضا صادقی ماهونک استادیار گروه علوم و صنایع غذایی، دانشگاه علوم کشاورزی و منابع طبیعی گرگان فائزه کمالی دانشجوی کارشناسی ارشد علوم و صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان

plants are rich source of phenolic compounds (phenolic acids, flavonoids and tannins) that are most important natural antioxidants. in the present study two ultrasonic methods including probe and bath were used for the extraction of phenolic and flavonoid compounds from celtis australis. the effects of different extraction time including 30, 60 and 90 min (bath method) and 5, 10 and 20 min (pro...

Journal: :journal of pharmaceutical and health sciences 0

plants are almost reach sources of phenolic compounds such as flavonoids which are the most importantnatural antioxidants. antioxidant compounds are essential for protecting human body against oxidativestress. however use elicitors could increase the antioxidant activity of plant. the purpose of this studywas to evaluate the effects of chitosan on the content of phenolic and flavonoid compounds...

Fereshte Saboonchian, Rashid Jamei, Siavash Hosseini Sarghein

Objectives: Leaves and flowers ofElaeagnus angustifolia contain phenolic and flavonoid compounds. These compounds have antioxidant properties that protect cells from oxidative damage. The aim of this study was to determine and analyze total phenolic and flavonoid content of leaves and flowers in two E. angustifolia variants using different solvents (ethanol and methanol). Materials and Methods:...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
j khezrilu bandli biology department, urmia university, urmia, iran tel: +98-914-4391573, fax: +98-441-2753172 r heidari

background: artemisia dracunculus l. belongs to the anthemideae tribe of asteraceae family. this plant has been used in traditional folk medicine. also, it's anti-bacterial, anti-fungal, antioxidant, anti-inflammatory and hepatoprotective activity has been proved. objective: the purpose of this study was to evaluate the antioxidant activity of leaves and inflorescence of a. dracunculus and...

Azita Shabrangi Sima Salimgandomi

Plants are almost reach sources of phenolic compounds such as flavonoids which are the most importantnatural antioxidants. Antioxidant compounds are essential for protecting human body against oxidativestress. However use elicitors could increase the antioxidant activity of plant. The purpose of this studywas to evaluate the effects of Chitosan on the content of phenolic and flavonoid compounds...

2014
Fereshte Saboonchian Rashid Jamei Siavash Hosseini Sarghein

UNLABELLED Objectives : Leaves and flowers of Elaeagnus angustifolia contain phenolic and flavonoid compounds. These compounds have antioxidant properties that protect cells from oxidative damage. The aim of this study was to determine and analyze total phenolic and flavonoid content of leaves and flowers in two E. angustifolia variants using different solvents (ethanol and methanol). MATERIA...

Journal: :Molecules 2011
Saba Zuhair Hussein Kamaruddin Mohd Yusoff Suzana Makpol Yasmin Anum Mohd Yusof

Two types of monofloral Malaysian honey (Gelam and Nenas) were analyzed to determine their antioxidant activities and total phenolic and flavonoid contents, with and without gamma irradiation. Our results showed that both types of honey can scavenge free radicals and exhibit high antioxidant-reducing power; however, Gelam honey exhibited higher antioxidant activity (p < 0.05) than Nenas honey, ...

Background and Objective: Phenolic acids, polyphenols and flavonoids are antioxidant compounds, which act as cell protective factors against oxidative stress by trapping and inhibition of free radicals, play an important role in plants and animals health. In this research, in order to optimize extraction of antioxidant compounds, phenolic and flavonoid contents and antioxidant activity of...

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