نتایج جستجو برای: phenolic compound and antioxidant activity during osmo

تعداد نتایج: 17185913  

2013
Ye-Ji Lee Muthu Thiruvengadam Ill-Min Chung Praveen Nagella

The aim of this work was to establish the antioxidant capacity and the polyphenolic profile of Artemisia absinthium that could potentially be used in the human diet. An ultra-high performance liquid chromatographic method was used to identify and quantify individual phenolic compounds of the A. absinthium leaves. A total of 20 polyphenolic compounds were identified and quantified in A. absinthi...

Journal: :فصلنامه علمی پژوهشی گیاهان دارویی 0
m zangiabadi 1- department of food science and technology, tarbiat modares university ma sahari department of food science and technology, tarbiat modares university, tehran, iran, tel: +98-21-48292328; fax: +98-21- 48292200 m barzegar 1- department of food science and technology, tarbiat modares university h naghdi badi department of cultivation and development, institute of medicinal plants, acecr

background: autoxidation is considered to be the main route of edible oil deterioration, which produces undesirable odors and flavors (attributed to primary and secondary products of unsaturated fatty acids) during storage and heating. objective: antioxidant activities of zataria multiflora (zmeo) and bunium persicum (bpeo) essential oils (eos) in linseed oil (containing higher ω-3 in vegetable...

Journal: :avicenna journal of phytomedicine 0
amin morabbi najafabad 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

objectives: consumption of fruits, such as plums and prunes, is useful in treating blood circulation disorder, measles, digestive disorder, and prevention of cancer, diabetes, and obesity. the paper presents a description of antioxidant and antiradical capacity of plum (prunus domestica l.) in both fresh and dried samples. materials and methods: samples were mixed with methanol and ethanol (as ...

Journal: :journal of herbal drugs (an international journal on medicinal herbs) 2013
gita amini saeed irian ahmad majd sedigheh mehrabian

background & aim: strawberry (fragaria vesca l.) is a plant belonging to the rosaceae family with medicinal properties, including antioxidant activity. the present study aimed at investigating the antioxidant properties of strawberry. experimental method: to examine the antioxidant effect, fruit extracts at two phonological stages of growth (ripe and unripe strawberry) were prepared. in add...

Journal: :journal of nuts 0
liang lin lin food science & nutrition group, school of chemical & life sciences, nanyang polytechnic, nanyang, singapore freda xin you giam food science & nutrition group, school of chemical & life sciences, nanyang polytechnic, nanyang, singapore xin min foo food science & nutrition group, school of chemical & life sciences, nanyang polytechnic, nanyang, singapore nadia marie hui lian yeo food science & nutrition group, school of chemical & life sciences, nanyang polytechnic, nanyang, singapore charlene jia ling koh food science & nutrition group, school of chemical & life sciences, nanyang polytechnic, nanyang, singapore nur hatika binte sa’aban food science & nutrition group, school of chemical & life sciences, nanyang polytechnic, nanyang, singapore wai mun loke

this study examined if pre-germination altered the water content and water activity, contents of phytate, total phenolic, (±)-catechin, quercetin and total antioxidant capacity of almond  (prunus dulcis)kernel. raw almond kernels were submerged for 15 hours in water, 0.02 mol dm-3 phosphate buffer solution (ph 5.0) and 0.02 mol dm-3 phosphate buffer solution (ph 7.0) at 25 and 40ºc, respectivel...

Journal: :journal of agricultural science and technology 2010
p. yasoubi m. barzegar m. a. sahari m. h. azizi

the phenolic compounds of pomegranate (punica granatum l.) peel extracted by two methods (solvent and ultrasound-assisted) with five solvents (acetone, methanol, ethanol, water and ethyl acetate) were compared with supercritical fluid extraction (sfe). the total phenolic compounds were determined according to the folin-ciocalteu reagent using tannic acid as standard. the overall results showed ...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه شیراز - دانشکده کشاورزی 1392

چکیده بررسی فعالیت ضد اکسیدانی و ضدمیکروبی عصاره گیاه بن سرخ (allium jesdianum) به کوشش: زهرا مقیمی هدف از این تحقیق بررسی میزان ترکیبات فنولی کل، ترکیبات فلاوونوئیدی کل، فعالیت ضداکسیدانی و ضدمیکروبی عصاره ی گیاه تازه و خشک بن سرخ بود. استخراج عصاره به روش های غوطه وری، استفاده از همزن مغناطیسی، دستگاه مایکروویو، امواج فراصوت و گرمادهی مقاومتی و با استفاده از متانول، اتانول و آب به عنوا...

Journal: :Molecules 2014
Patrícia L A Nascimento Talita C E S Nascimento Natália S M Ramos Girliane R Silva José Erick Galindo Gomes Rosângela E A Falcão Keila A Moreira Ana L F Porto Tania M S Silva

This paper presents the quantification, antioxidant and antimicrobial activity of capsaicin, dihydrocapsaicin and the flavonoid chrysoeriol isolated from different extracts (hexane and acetonitrile extracts from whole fruit, peel and seed) of Capsicum frutescens (pimenta malagueta). The acetonitrile extract of the seeds, peel and whole fruits contained capsaicin as a major component, followed i...

Journal: :jundishapur journal of natural pharmaceutical products 0
mohaddese mahboubi microbiology group, medicinal plants research center of barij essence, ir iran +98-8664362112, [email protected];[email protected]; microbiology group, medicinal plants research center of barij essence, ir iran +98-8664362112, [email protected];[email protected] nastaran kazempour microbiology group, medicinal plants research center of barij essence, ir iran +98-8664362112, [email protected];[email protected] ali reza boland nazar agricultural group, medicinal plants research center of barij essence, ir iran

background scrophularia striata (scrophulariaceae family) is an herbaceous plant that is traditionally used for treatment of microbial infections. objectives antimicrobial and antioxidant activity of different extracts (methanolic, ethanolic, aqueous and ethyl acetate) from s. striata aerial parts was evaluated. materials and methods the antimicrobial activity of different extracts from s. stri...

Journal: :Molecules 2015
Jan Oszmiański Aneta Wojdyło Paulina Nowicka Mirosława Teleszko Tomasz Cebulak Mateusz Wolanin

Twenty-six different wild blackberry leaf samples were harvested from various localities throughout southeastern Poland. Leaf samples were assessed regarding their phenolic compound profiles and contents by LC/MS QTOF, and their antioxidant activity by ABTS and FRAP. Thirty-three phenolic compounds were detected (15 flavonols, 13 hydroxycinnamic acids, three ellagic acid derivatives and two fla...

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