Results 101 to 110 of about 162,999 (382)

Antioxidant activity, volatile compounds and fatty acid compositions of Cephalaria syriaca seeds obtained from different regions in Turkey

open access: yesGrasas y Aceites, 2020
Crude oil yield, fatty acid composition, volatile compounds, antioxidant activity and some characteristics of Cephalaria syriaca seeds collected from different locations in Turkey were studied.
C. Kavak, A. Baştürk
doaj   +1 more source

Photocatalytically Activated Cu‐N1S3 Single‐Atom Nanozyme: Enhancing Enzyme Activities and Antibacterial Synergy for Highly Efficient Fruit Preservation

open access: yesAdvanced Science, EarlyView.
This study presents S‐coordinated Cu single‐atom nanozymes (Cu/CNS) fabricated via mild photocatalytic self‐assembly strategy. The nanozyme exhibits exceptional multi‐enzyme activity and near‐perfect antimicrobial efficacy. Incorporated into chitosan‐gelatin film, it enables pH‐responsive, broad‐spectrum fruit preservation, more than doubling the shelf‐
Chuanlong Men   +7 more
wiley   +1 more source

Can an abts antioxidant test be performed without a spectrophotometer?

open access: yesCumhuriyet Science Journal, 2020
ABTS• +(2,2-azinobis- (3-ethylbenzothiazoline-6-sulphonic acid)) radical scavenging assay is widely used to determine the antioxidant activity of natural and synthetic substances.
Nesibe Arslan Burnaz, Zeynep Akar
doaj   +1 more source

Statistical evaluation of DPPH, ABTS, FRAP, and Folin-Ciocalteu assays to assess the antioxidant capacity of lignins.

open access: yesInternational Journal of Biological Macromolecules, 2023
J. Rumpf, René Burger, M. Schulze
semanticscholar   +1 more source

The Methodology Applied in DPPH, ABTS and Folin-Ciocalteau Assays Has a Large Influence on the Determined Antioxidant Potential.

open access: yesActa Chimica Slovenica, 2017
Antioxidant potential (AOP) is not only the property of the matrix analyzed but also depends greatly on the methodology used. The chromogenic radicals 2,2'-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS•+), 2,2-diphenyl-1-picrylhydrazyl (DPPH ...
H. Abramovič   +3 more
semanticscholar   +1 more source

Sabatier‐Adjusted d‐Band Centers of Scalable Asymmetric Iron Sites toward Dynamic Nonradical Network for Fast Mineralization with Low‐Amount Oxidant

open access: yesAdvanced Science, EarlyView.
Asymmetric iron single‐atom catalysts with Sabatier‐adjusted d‐band centers overcome the inherent limitations of peroxymonosulfate (PMS) activation by establishing a synergistic nonradical pathway network, achieving exceptional pollutant mineralization (≈85%) at only one‐tenth conventional PMS dosage.
Yue Chen   +10 more
wiley   +1 more source

Production, Characterization and Purification of Laccase by Yeasts Isolated from Ligninolytic Soil

open access: yesJournal of Pure and Applied Microbiology, 2017
Laccases are multi copper oxidases having wide substrate specificity for phenolic compounds, amines, inorganic compounds like iodine, using oxygen and producing water as by product.
S.M. Wakil   +5 more
doaj   +1 more source

Block freeze-concentration of coffee extract: Effect of freezing and thawing stages on solute recovery and bioactive compounds [PDF]

open access: yes, 2014
Coffee extract was freeze-concentrated using the total block technique. The effects of four parameters were evaluated: the initial coffee mass fraction (5 and 15% w/w), the cooling temperature ( 10 and 20 C), the heating temperature (20 and 40 C ...
Hernández Yáñez, Eduard   +3 more
core   +2 more sources

AI‐Driven Acceleration of Fluorescence Probe Discovery

open access: yesAdvanced Science, EarlyView.
We present PROBY, an AI model trained on large‐scale datasets to predict key photophysical properties and accelerate the discovery of target‐specific fluorescent probes. By screening a target‐annotated library, PROBY identifies candidate probes for diverse targets and could guide probe optimization, enabling a range of in vitro and in vivo imaging ...
Xuefeng Jiang   +18 more
wiley   +1 more source

Comparison of Iron (III) Reducing Antioxidant Capacity (iRAC) and ABTS Radical Quenching Assays for Estimating Antioxidant Activity of Pomegranate

open access: yesBeverages, 2018
Pomegranate juice (PJ) has total antioxidant capacity which is reportedly higher compared to other common beverages. This short study aimed to assess the total antioxidant capacity of commercial PJ and pomegranate fruit using a newly described method for
H. Wan   +3 more
semanticscholar   +1 more source

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