Bioactive molecules and antioxidant activity in durum wheat grains and related millstream fractions

Abstract The present study was performed to evaluate the distribution of phytochemicals in wheat grains and millstreams and the contribution of these compounds to the antioxidant activity. Bioactive molecules, although related to genotype, were highly affected by the milling procedure applied. Carot...

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Bibliographic Details
Published in:International journal of food sciences and nutrition 2013-12, Vol.64 (8), p.959-967
Main Authors: Acquistucci, Rita, Melini, Valentina, Carbonaro, Marina, Finotti, Enrico
Format: Article
Language:English
Subjects:
Antioxidant activity
Antioxidants
Antioxidants - analysis
Antioxidants - pharmacology
bioactive molecules
Biological activity
carotenoids
Carotenoids - analysis
Carotenoids - pharmacology
Color
Diet
Food Handling
Food science
Genotype & phenotype
Grain
Humans
Lutein - analysis
Lutein - pharmacology
Nutrition research
Phenols - analysis
Phenols - pharmacology
Phytochemicals
polyphenols
Polyphenols - analysis
Polyphenols - pharmacology
Seeds - chemistry
Triticum - chemistry
Wheat
wheat millstreams
Xanthophylls - analysis
Xanthophylls - pharmacology
Zeaxanthins
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Summary:Abstract The present study was performed to evaluate the distribution of phytochemicals in wheat grains and millstreams and the contribution of these compounds to the antioxidant activity. Bioactive molecules, although related to genotype, were highly affected by the milling procedure applied. Carotenoids were unevenly distributed in the kernel and lutein resulted to be the main carotenoid in all samples considered. The WSB method was confirmed to be a useful tool to detect yellow color intensity of semolina but it was not suitable to get information on the true content of carotenoids of the sample. Water-methanol soluble components showed antioxidant activity which decreased from the outer to the inner parts of the kernel. Chloroform-methanol soluble compounds showed generally negligible or negative antioxidant activity due to the inadequate amount of antioxidants unable to counteract oxidative processes already in progress.
ISSN:0963-7486
1465-3478
DOI:10.3109/09637486.2013.825696