نتایج جستجو برای: teac

تعداد نتایج: 447  

2001
AIMEE S. A. JOHNSON

In this paper we define the loose block independence property for positive entropy Zd actions and extend some of the classical results to higher dimensions. In particular, we prove that two loose block independent actions are even Kakutani equivalent if and only if they have the same entropy. We also prove that for d > 1 the ergodic, isometric extensions of the positive entropy loose block inde...

2013
Raj Kumar Salar Milan Certik Vlasta Brezova Marta Brlejova Vladimira Hanusova Emília Breierová

Rhodotorula glutinis CCY 20-2-26 when grown under controlled stress of either NaCl (1-5 %) or H2O2 (1-5 mM) on basal media exhibited a twofold increase in its total phenolic contents. The radical scavenging capacities (RSCs) as determined by ABTS test were found to be highest in 4 mM H2O2 (1.44 mM TEAC mg-1) and 4 % NaCl (1.13 mM TEAC mg-1) as compared to control samples (0.41 mM TEAC mg-1). Si...

Journal: :Pharmacological reports : PR 2005
Ewa Florek Ewa Ignatowicz Jagna Wrzosek Wojciech Piekoszewski

Exposure to tobacco smoke impairs the antioxidant defense mechanisms. In female Wistar rats fed on regular rodent chow and supplemented with a flavonoids rutin, Trolox Equivalent Antioxidant Capacity (TEAC) was measured as an ABTS-radical cation reduction power in plasma, lungs, liver, brain and kidneys. Exposure to smoke reduced the TEAC values in the liver, brain and kidneys and enhanced anti...

Journal: :Nucleic acids research 1999
A Lambrinakos K E Humphrey J J Babon T P Ellis R G Cotton

Many mutation detection techniques rely upon recognition of mismatched base pairs in DNA hetero-duplexes. Potassium permanganate in combination with tetraethylammonium chloride (TEAC) is capable of chemically modifying mismatched thymidine residues. The DNA strand can then be cleaved at that point by treatment with piperidine. The reactivity of potassium permanganate (KMnO4) in TEAC toward mism...

2015
Le Van Tan Tran Quang Hieu Nguyen Van Cuong

New complexes of 5,11,17,23-tetra[(2-ethyl acetoethoxyphenyl)(azo)phenyl]calix[4]arene (TEAC) with Pb(II) and Cr(III) were prepared in basic solution with a mixture of MeOH and H2O as solvent. The ratio of TEAC and metal ion in complexes was found to be 1 : 1 under investigated condition. The complex formation constants (based on Benesi-Hildebrand method) for TEAC-Pb(II) and TEAC-Cr(III) were 4...

Journal: :Clinical chemistry 1998
G Cao R L Prior

Three assays were compared for the determination of total antioxidant capacity in human serum: the oxygen radical absorbance capacity (ORAC) assay, the Randox Trolox-equivalent antioxidant capacity (Randox-TEAC) assay, and the ferric reducing ability (FRAP) assay. There was a weak but significant linear correlation between serum ORAC and serum FRAP. There was no correlation either between serum...

امرایی, فضل اله, سیاهپوش, امیر,

Introduction: Herbs are used in many domains, including medicine, nutrition, and flavorings. Many species have been recognized to have pharmaceutical properties, e.g. antioxidant, anti-inflammatory, antimicrobial, and anticarcinogenic effects. Recently, there has been an increased interest in identifying natural antioxidant compounds for use in pharmaceutical and food industries, mainly due to ...

Journal: :The Ceylon medical journal 2014
S P A S Senadheera S Ekanayake C Wanigatunge

OBJECTIVES To evaluate the antioxidant potential of porridges (kola kenda) made incorporating herbs. DESIGN Experimental study. Main outcome measures Total phenolic content was estimated by Folin Ciocalteau method (GAEmg/g(FW) and the antioxidant potential by ABTS free radical scavenging activity (TEAC(μg)/100g (FW). RESULTS Total phenolics and antioxidant potentials of porridges ranged fro...

ژورنال: :مجله دانشگاه علوم پزشکی شهید صدوقی یزد 0
امیر سیاهپوش a siahpoosh فضل اله امرایی f amraee

مقدمه: بسیاری از گیاهان دارای خواص دارویی بوده و دارای اثر آنتی اکسیدانی، ضدالتهابی، ضدمیکروبی و ضدسرطانی می باشند. اخیراً توجه به ترکیبات آنتی اکسیدانی طبیعی به منظور استفاده در صنایع دارویی و غذایی به دلیل عوارض ناخواسته آنتی اکسیدان های مصنوعی افزایش یافته است. ترکیبات پلی فنل از جله ترکیبات بسیار مهم گیاهان بوده که دارای اثرات آنتی اکسیدانی می باشند. این ترکیبات در تمام اندام های گیاهان یافت...

Journal: :Food additives and contaminants 2006
A Gliszczyńska-Swigło H Szymusiak P Malinowska

In the present study, the pH-dependent free radical-scavenging activity of betanin in the Trolox equivalent antioxidant capacity (TEAC) assay was determined. It was found that at a pH > 4 betanin is about 1.5-2.0-fold more active than some anthocyanins considered very good free radical scavengers as determined in the TEAC assay. The increase in the TEAC values of betanin with increasing pH is d...

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