Results 151 to 160 of about 16,358 (173)

Ascorbic acid contribution to ORAC values in berry extracts: An evaluation by the ORAC-pyrogallol red methodology [PDF]

open access: yesFood Chemistry, 2009
An oxygen radical absorbance capacity (ORAC) method based on pyrogallol red bleaching (ORAC-PGR) was used to evaluate the scavenging activity of berry extracts (blackberry, blueberry, and raspberry).
E Lissi, H Speisky, C López-Alarcón
exaly   +2 more sources

ORAC of chitosan and its derivatives

open access: yesFood Hydrocolloids, 2012
Chitosan and chitosan derivatives are receiving a lot of attention as materials of natural origin which possess radical scavengers, antioxidants and antimicrobial properties, especially in food applications.
Luca Casettari   +2 more
exaly   +2 more sources

The additive properties of Oxygen Radical Absorbance Capacity (ORAC) assay: The case of essential oils [PDF]

open access: yesFood Chemistry, 2014
The ORAC assay is applied to measure the antioxidant capacity of foods or dietary supplements. Sometimes, the manufacturers claim antioxidant capacities that may not correspond to the constituents of the product.
Carlos Rubio, Paula Vera, C Nerin
exaly   +2 more sources

Influence of extraction solvent on antioxidant capacity value of oleaster measured by ORAC method

open access: yesNatural Product Research, 2014
Oxygen radical absorbance capacity (ORAC) is a widely used hydrogen atom transfer-based method which measures the antioxidant capacity of natural products. ORAC values of oleaster (Elaeagnus angustifolia L.), which was extracted with ethanol/acetone (7:3,
Sogut, Ozlem   +3 more
exaly   +2 more sources

Antioxidant capacity of phenolic compounds in acidic medium: A pyrogallol red-based ORAC (oxygen radical absorbance capacity) assay [PDF]

open access: yesJournal of Food Composition and Analysis, 2013
A novel ORAC (oxygen radical absorbance capacity) assay to assess antioxidant capacity of phenolic compounds in near-gastric conditions (pH 2.0) is presented.
E Lissi, H Speisky, C López-Alarcón
exaly   +2 more sources

Home - About - Disclaimer - Privacy