نتایج جستجو برای: Antioxidant activity

تعداد نتایج: 1189588  

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه علوم کشاورزی و منابع طبیعی گرگان - دانشکده مرتع و آبخیزداری و شیلات و محیط زیست 1391

جهت بهینه سازی شرایط تولید پروتئین هیدرولیز شده (شامل نسبت آنزیم به سوبسترا، دما و زمان) به منظور دستیابی به بالاترین خواص آنتی اکسیدانی، مینس تهیه شده از ضایعات میگوی ببری سبز (penaeus semisulcatus) پس از تعیین درصد پروتئین آن (13%، بر اساس وزن تر) با استفاده از دو پروتئاز تجاری آلکالاز و فلاورزایم بر اساس 18 تیمار تعیین شده با طرح آزمایشات سطح پاسخ برای هر آنزیم، هیدرولیز شده و با خشک کن انجم...

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: :journal of reports in pharmaceutical sciences 0
hadi adibi department of medicinal chemistry, faculty of pharmacy, kermanshah university of medical sciences, kermanshah 67145-1673, iran ramin abiri shadpour mallakpour mohammad ali zolfigol mohammad bagher majnooni department of medicinal chemistry, faculty of pharmacy, kermanshah university of medical sciences, kermanshah 67145-1673, iran

abstract: in a wide search program towards new and efficient antimicrobial agents, a series of 4-substituted-1,2,4-triazolidine-3,5-dione derivatives namely urazoles holding an alkyl moiety at position 4 have been synthesized and tested for their in vitro antibacterial and antifungal activities. the structures of these compounds have been investigated by spectral data. the synthesized compounds...

Journal: :iranian journal of science and technology (sciences) 2013
s. albayrak

the methanolic extracts, infusions, decoctions and hydrosols of six plants were investigated for their total phenolic contents, antioxidant and antimicrobial activities: mentha piperita (peppermint), thymus vulgaris   (thyme), melissa officinalis (lemon balm), ocimum basilicum (basil), rosmarinus officinalis (rosemary) and     salvia officinalis     (sage) (lamiaceae). total phenolic contents w...

Journal: :iranian journal of pharmaceutical research 0
t ghosh tk maity p sengupta dk dash a bose

diabetes mellitus is a metabolic disorder affecting carbohydrate, fat and protein metabolism that affects nearly 10% of the population every year. the treatment of diabetes mellitus has been confined to use of oral hypoglycemic agents and insulin, the former being reported to possess serious side effects. this leads to increasing demand for herbal products with antidiabetic factor with little s...

Journal: :the iranian journal of pharmaceutical research 0
marijana kosanić department of biology, faculty of science, university of kragujevac, 34000 kragujevac, radoja domanovića 12, serbia. branislav ranković department of biology, faculty of science, university of kragujevac, 34000 kragujevac, radoja domanovića 12, serbia. marko dašić department of biology, faculty of science, university of kragujevac, 34000 kragujevac, radoja domanovića 12, serbia.

the aim of the study is to examine in-vitro antioxidant and antimicrobial activity of the acetonic and methanolic extracts of the mushrooms boletus aestivalis, boletus edulis and leccinum carpini. antioxidant activity was evaluated by using free radical scavenging activity and reducing power. in addition, total content of phenol and flavonoid in extracts were determined as pyrocatechol equivale...

Journal: :iranian journal of science and technology (sciences) 2015
s. albayrak

the antioxidant activities of methanol (me), ethanol (ee), water (we) and ethyl acetate (eae) extracts of four inula helenium l. taxa (i. helenium ssp. orygalis (boiss.) grierson, i. helenium ssp. pseudohelenium grierson, i. helenium ssp. turcarasemosa grierson and i. helenium ssp. vanensis grierson) were investigated. the phosphomolybdenum assay, β-carotene–linoleate bleaching and dpph radical...

پایان نامه :وزارت علوم، تحقیقات و فناوری - دانشگاه تبریز - دانشکده علوم طبیعی 1391

in recent years many researchers have been focused on interaction of small molecules with dna. dna is generally the primary intracellular of anticancer drugs, so the interaction between small molecules and dna can cause dna damage in cancer cells, blocking the division of cancer cells and resulting in cell death. the flavonoids are a large group of polyphenolic natural products that are widely ...

Journal: :iranian journal of basic medical sciences 0
rudrappa nandeesh department of pharmacognosy, sree siddhaganga college of pharmacy, tumkur, karnataka, india bagepalli srinivasa ashok kumar department of pharmacognosy, sri k.v.college of pharmacy, chickballapur, karnataka, india kuruba lakshman department of pharmacognosy, pes college of pharmacy, bangaluru, karnataka, india saleemulla khan department of pharmacognosy, manipal college of pharmaceutical sciences, manipal, karnataka, india vantoor byrappa narayana swamy department of pharmacognosy, sri k.v.college of pharmacy, chickballapur, karnataka, india tathireddy bharathi department of pharmaceutical biotechnology, sri krishan chaitanya college of pharmacy, madanapalle, andhra pradesh, india

objective(s) the aim of this study was to evaluate antioxidant and hair growth activities of buxus wallichiana baill (buxaceae). materials and methods petroleum ether, chloroform, methanol and aqueous extracts of buxus wallichiana subjected to antioxidant activity by; 2, 2-diphenyl-1-picryl hydrazyl and nitric oxide methods. methanol extract of buxus wallichiana at 50, 100 mg/kg, ointment of me...

Journal: :jundishapur journal of natural pharmaceutical products 0
mohaddese mahboubi department of microbiology, medicinal plant research center of barij, kashan, ir iran; department of microbiology, medicinal plant research center of barij, kashan, ir iran. tel: +98-8644465112, fax: +98-8644465187 mohsen taghizadeh biochemistry and nutrition in metabolic disorders research center, kashan university of medical sciences, kashan, ir iran nastaran kazempour department of microbiology, medicinal plant research center of barij, kashan, ir iran

conclusions p. spinosa ethanol extract can be used as a mouthwash for treatment of the oral infections. more clinical and toxicological studies are required for providing its efficacy. results p. spinosa ethanol extract with higher-level phenolic and flavonoid contents showed the highest antioxidant and antimicrobial effects, in comparison with the other extracts. bacillus sp. and streptococcus...

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