نتایج جستجو برای: teac

تعداد نتایج: 447  

2014
Fouteye Mint Mohamed Lemine Mohamed Vall O Mohamed Ahmed Lobna Ben Mohamed Maoulainine Zein el Abidine O Bouna Abdoulaye Samb Ali O Mohamed Salem O Boukhary

The increasing interest in plant phenolics and flavonoids outlined the necessity of determining their contents and biological activity in Mauritanian date palm fruits. Methanolic extracts of fruit of six date palm cultivars commonly grown in Mauritania were screened for their antioxidant activity, total phenolics, and flavonoid content at two edible ripening stages. Polyphenols and flavonoids w...

2014
Kaushik Kar

Incidence & prevalence of type 2 DM is increasing in worldwide but greatest prevalence in Asian population as also its chronic complications. Oxidative stress is believed to be a common pathogenic factor for these grave consequences. Advanced oxidation protein product (AOPP) is a marker of protein damage whereas total oxidant status(TOS) reflects the severity of oxidative stress. Different resu...

Journal: :ACM Transactions on Economics and Computation 2017

2012
Walid Elfalleh Hédia Hannachi Nizar Tlili Yassine Yahia Nizar Nasri Ali Ferchichi

Pomegranate (Punica granatum L.) is a nutrient dense food rich in beneficial phytochemicals. The aim of this study is to investigate and to determine antioxidant contents from local and highly consumed pomegranate variety called ‘Gabsi’. Peels, seeds, leaves and flowers were used to quantify total polyphenols, flavonoids, anthocyanins and hydrolysable tannins. Antioxidants contents were as foll...

Journal: :Analytical sciences : the international journal of the Japan Society for Analytical Chemistry 2014
Tomoko Shimamura Yoshihiro Sumikura Takeshi Yamazaki Atsuko Tada Takehiro Kashiwagi Hiroya Ishikawa Toshiro Matsui Naoki Sugimoto Hiroshi Akiyama Hiroyuki Ukeda

An inter-laboratory evaluation study was conducted in order to evaluate the antioxidant capacity of food additives by using a 1,1-diphenyl-2-picrylhydrazyl (DPPH) assay. Four antioxidants used as existing food additives (i.e., tea extract, grape seed extract, enju extract, and d-α-tocopherol) and 6-hydroxy-2,5,7,8-tetramethylchroman-2-carboxylic acid (Trolox) were used as analytical samples, an...

Journal: :Molecules 2017
Sohail S Qazi Dongbing Li Cedric Briens Franco Berruti Mamdouh M Abou-Zaid

A challenge in recent years has been the rational use of forest and agriculture residues for the production of bio-fuel, biochemical, and other bioproducts. In this study, potentially useful compounds from pyrolytic lignins were identified by HPLC-MS/MS and untargeted metabolomics. The metabolites identified were 2-(4-allyl-2-methoxyphenoxy)-1-(4-hydroxy-3-methoxyphenyl)-1-propanol, benzyl benz...

2016
BE Prie L Iosif I Tivig I Stoian C Giurcaneanu

Rationale:Androgenetic alopecia is not considered a life threatening disease but can have serious impacts on the patient's psychosocial life. Genetic, hormonal, and environmental factors are considered responsible for the presence of androgenetic alopecia. Recent literature reports have proved the presence of inflammation and also of oxidative stress at the level of dermal papilla cells of pati...

Journal: :Molecules 2016
Kristóf Csepregi Susanne Neugart Monika Schreiner Éva Hideg

Thirty-seven samples of naturally occurring phenolic compounds were evaluated using three common in vitro assays for total antioxidant activity (TAC) testing: the Trolox Equivalent Antioxidant Capacity (TEAC), the Ferric Reducing Antioxidant Potential (FRAP) and the 2,2-diphenyl-1-picrylhydrazyl (DPPH) radical scavenging assay, in addition to the Folin-Ciocalteu reagent reactivity (FCR). We fou...

2016
Daysha Ferrer-Torres Derek J. Nancarrow Rork Kuick Dafydd G. Thomas Ernest Nadal Jules Lin Andrew C. Chang Rishindra M. Reddy Mark B. Orringer Jeremy M. G. Taylor Thomas D. Wang David G. Beer

The current high mortality rate of esophageal adenocarcinoma (EAC) reflects frequent presentation at an advanced stage. Recent efforts utilizing fluorescent peptides have identified overexpressed cell surface targets for endoscopic detection of early stage Barrett's-derived EAC. Unfortunately, 30% of EAC patients present with gastroesophageal junction adenocarcinomas (GEJAC) and lack premaligna...

2010
Feng-Lin Song Ren-You Gan Yuan Zhang Qin Xiao Lei Kuang Hua-Bin Li

Antioxidant capacities of 56 selected Chinese medicinal plants were evaluated using the Trolox equivalent antioxidant capacity (TEAC) and ferric reducing antioxidant power (FRAP) assays, and their total phenolic content was measured by the Folin-Ciocalteu method. The strong correlation between TEAC value and FRAP value suggested that the antioxidants in these plants possess free radical scaveng...

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