نتایج جستجو برای: natural antioxidant

تعداد نتایج: 568423  

Journal: Journal of Herbal Drugs 2010
Abbas Barin Parisa Sadighara,

Background & Aim: Applications of synthetic antioxidant in food have side effects. In present study, the antioxidant potential of Morus alba leaves, as natural antioxidant, was screened with cupric ion reducing assay (CUPRAC assay) and inhibition of lipid peroxidation. The aim of this study was to determine the total antioxidant activity of Morus alba leaves. Martial & Method...

Journal: :Acta pharmaceutica 2005
Lutfun Nahar Wendy R Russell Moira Middleton Mohammad Shoeb Satyajit D Sarker

Reversed-phase preparative HPLC analysis of the methanol extract of the seeds of Ilex aquifolium afforded two antioxidant phenylacetic acid derivatives, 2,4-dihydroxyphenylacetic acid (1) and 2,4-dihydroxyphenylacetic acid methyl ester (2). The structures were determined by spectroscopic methods. In the DPPH assay for antioxidant activity, the IC(50) values of 1 and 2 were 1.50 x 10(-3) and 2.5...

Journal: Journal of Herbal Drugs 2010
Abbas Barin Parisa Sadighara,

Background & Aim: Applications of synthetic antioxidant in food have side effects. In present study, the antioxidant potential of Morus alba leaves, as natural antioxidant, was screened with cupric ion reducing assay (CUPRAC assay) and inhibition of lipid peroxidation. The aim of this study was to determine the total antioxidant activity of Morus alba leaves. Martial & Method...

Akram Arianfar Maryam Sardarodiyan, Masoomeh Mehraban Sang Atash

Nowadays the researches have indicated the fact that using synthetic antioxidants as food additives in edible oils can have adverse effects on human health. So preparing antioxidation resources for reduction of oxidation stress effects is important. The aim of this project was, representing a natural antioxidant source with frap test. The present study optimized the ultrasound assisted extracti...

Journal: :پژوهش های علوم و صنایع غذایی ایران 0
faezeh tafreshi majid javanmard maryam fahimdanesh

antioxidant active packaging is one of the active packaging that prevents of lipid oxidation by releasing antioxidant during storage of food. in recent years the use of natural antioxidant instead of the synthetic variety in these packaging has been considered. the aim of this study was evaluating the performance of polymeric film coated with natural antioxidant (rosemary extract) to prevent li...

Journal: :journal of agricultural science and technology 2010
a. rajaei m. barzegar m. a. sahari

tea and sesame seed oils extracted by different methods (including supercritical fluid extraction (sfe), at a pressure of 350 atm, a temperature of 60oc, a static extraction time of 20 minutes, a dynamic extraction time of 30 minutes and 150 g kg-1 of ethanol as a modifier). solvent (se) and ultrasound-assisted solvent extraction (ue)), as natural anti-oxidants, were evaluated during 15 days st...

Journal: :veterinary research forum 2012
tooraj mehdizadeh hossein tajik seyed mehdi razavi rohani abdol rassol oromiehie

thyme essential oils (eo) with antimicrobial and antioxidant properties are widely used in pharmaceutical, cosmetic, and perfume industry. it is also used for flavoring and preservation of several foods. nowadays, packaging research is receiving a considerable attention due to the development of eco-friendly materials made from natural polymers such as starch and chitosan. in this study thymus ...

A Sonboli M Mojarrad S Nejad Ebrahimi SH Enayat

This study was designed to examine the in vitro antioxidant activities and total phenolic contents of the methanolic extracts from male inflorescence of Salix aegyptiaca L. grown in Iran. The methanolic extract (ME) and its three fractions including water (WF), butanol (BF) and chloroform (CF) were prepared and then their antioxidant activities, as well as total phenolic contents, were evaluate...

A Sonboli M Mojarrad S Nejad Ebrahimi SH Enayat

This study was designed to examine the in vitro antioxidant activities and total phenolic contents of the methanolic extracts from male inflorescence of Salix aegyptiaca L. grown in Iran. The methanolic extract (ME) and its three fractions including water (WF), butanol (BF) and chloroform (CF) were prepared and then their antioxidant activities, as well as total phenolic contents, were evaluate...

Journal: :فرآوری و نگهداری مواد غذایی 0
علیرضا مهرگان نیکو دانشجوی کارشناسی ارشد گروه 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 محمد قربانی استادیار گروه علوم و صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان علی طاهری استادیار گروه شیلات دانشگاه دریانوردی و علوم دریایی چابهار مهران اعلمی استادیار گروه علوم و صنایع غذایی دانشگاه علوم کشاورزی و منابع طبیعی گرگان

the objective of this study was to produce fish protein hydrolysate (fph) with the most antioxidant activity, by enzymatic hydrolysis from (carassius carassius). the protein of crucian carp a low value fish was hydrolyzed by alcalase 2.4l and the optimal hydrolysis parameters of strongest antioxidant capacity of peptides were obtained using response surface methodology (rsm) by the central rota...

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