Abstract
Swiss red wheat grain, bran, aleurone, and micronized aleurone were examined and compared for their free radical scavenging properties against 2,2-diphenyl-1-picrylhydrazyl radical (DPPH*), radical cation ABTS*+ and peroxide radical anion O(2)*-, oxygen radical absorbance capacity (ORAC), chelating capacity, total phenolic content (TPC), and phenolic acid composition. The results showed that micronized aleurone, aleurone, bran, and grain may significantly differ in their antioxidant properties, TPC, and phenolic acid composition. Micronized aleurone had the greatest antioxidant activities, TPC, and concentrations of all identified phenolic acids, suggesting the potential of postharvesting treatment on antioxidant activities and availability of TPC and phenolic acids. Ferulic acid was the predominant phenolic acid in Swiss red wheat and accounted for approximately 57-77% of total phenolic acids on a weight basis. Ferulic acid concentration was well correlated with scavenging activities against radical cation and superoxide anion, TPC, and other phenolic acid concentrations, suggesting the potential use of ferulic acid as a marker of wheat antioxidants. In addition, 50% acetone and ethanol were compared for their effects on wheat ORAC values. The ORAC value of 50% acetone extracts was 3-20-fold greater than that of the ethanol extracts, indicating that 50% acetone may be a better solvent system for monitoring antioxidant properties of wheat. These data suggest the possibility to improve the antioxidant release from wheat-based food ingredients through postharvesting treatment or processing.
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Claims 8
Claim · model-written summary
Antioxidant properties, TPC and phenolic acid composition may significantly differ among micronized aleurone, aleurone, bran and grain of Swiss Red Wheat.
Verbatim
t0“Comparison of Swiss Red Wheat Grain and Fractions for Their Antioxidant Properties”
e1“The results showed that micronized aleurone, aleurone, bran, and grain may significantly differ in their antioxidant properties, TPC, and phenolic acid composition”
Claim · model-written summary
Micronized aleurone of Swiss Red Wheat had the greatest antioxidant activities, TPC and concentrations of all identified phenolic acids.
Verbatim
t0“Comparison of Swiss Red Wheat Grain and Fractions for Their Antioxidant Properties”
e1“Micronized aleurone had the greatest antioxidant activities, TPC, and concentrations of all identified phenolic acids”
Claim · model-written summary
Ferulic acid was the predominant phenolic acid in Swiss red wheat, about 57-77% of total phenolic acids on a weight basis.
Verbatim
e1“Ferulic acid was the predominant phenolic acid in Swiss red wheat and accounted for approximately 57-77% of total phenolic acids on a weight basis”
Claim · model-written summary
Ferulic acid concentration was well correlated with scavenging activities against radical cation and superoxide anion.
- Taxon
- wheat
Triticum aestivume1 - Compound
- Ferulic acide1
- Outcome
- scavenging activities against radical cation and superoxide anione1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ferulic acid concentration was well correlated with scavenging activities against radical cation and superoxide anion, TPC, and other phenolic acid concentrations, suggesting the potential use of ferulic acid as a marker of wheat antioxidants”
Claim · model-written summary
Ferulic acid concentration was well correlated with TPC and other phenolic acid concentrations in wheat.
- Taxon
- wheatTriticum aestivume1
- Compound
- Ferulic acide1
- Outcome
- TPC, and other phenolic acid concentrationse1
Not reportedDirection
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“Ferulic acid concentration was well correlated with scavenging activities against radical cation and superoxide anion, TPC, and other phenolic acid concentrations, suggesting the potential use of ferulic acid as a marker of wheat antioxidants”
Claim · model-written summary
The ORAC value of 50% acetone extracts of wheat was 3-20-fold greater than that of ethanol extracts.
- Taxon
- wheatTriticum aestivume1
- Treatment
- 50% acetone extractse1
- Outcome
- ORAC valuee1
- Direction
- greatere1
- Value
- 3-20-folde1
- Comparator
- ethanol extractse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“In addition, 50% acetone and ethanol were compared for their effects on wheat ORAC values. The ORAC value of 50% acetone extracts was 3-20-fold greater than that of the ethanol extracts, indicating that 50% acetone may be a better solvent system for monitoring antioxidant properties of wheat”
Claim · model-written summary
50% acetone may be a better solvent system than ethanol for monitoring antioxidant properties of wheat.
- Taxon
- wheatTriticum aestivume1
- Outcome
- monitoring antioxidant propertiese1
- Comparator
- ethanol extractse1
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e1“The ORAC value of 50% acetone extracts was 3-20-fold greater than that of the ethanol extracts, indicating that 50% acetone may be a better solvent system for monitoring antioxidant properties of wheat”
Claim · model-written summary
Postharvest treatment or processing may improve antioxidant release from wheat-based food ingredients.
Verbatim
e1“These data suggest the possibility to improve the antioxidant release from wheat-based food ingredients through postharvesting treatment or processing”
The same questions in other papers
botanical · molecular: metabolites · Triticum aestivum (wheat)Positive and negative results
27 papers in the same direction as this paper · 12 in the opposite direction
- no effect
- no effect
- negative
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See all 40 papers →Claims are grouped by organism, treatment and what was measured or targeted. A paper counts as positive when any of its claims in the group is positive.