Anti-inflammatory properties of durum wheat

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Abstract

Whole wheat foods are significant source of compounds exhibiting health-promoting properties. One of the most abundant class of phytochemicals in the wheat grain is represented by phenolic acids that are typically localized in the bran and germ portions. The objective of this study was to estimate the extent of variation for phenolic acids in durum wheat (T. turgidum L. ssp. durum). In addition, this study aimed at evaluating the anti-inflammatory activity of phenolic acids contained in whole-meal flour extracts. Phenolic acids were recovered from the whole meal flours of 65 durum cultivars and subsequently identified and quantified by HPLC-DAD analysis. Then, the anti-inflammatory activity of phenolic acids extracts was evaluated on LPS-stimulated HT-29 human colon cells by measuring the levels of interleukin 8 (IL-8) and transforming growth factor ?1 (TGF- ?1). A large variation for the content of phenolic acids was observed among genotypes and, on average, it accounted for 830 ?g/g dry weight. Whole meal flour extract significantly inhibited the secretion of the pro-inflammatory IL-8 mediator at 66 µg/mL of phenolic acids. Conversely, the secretion of the anti-inflammatory mediator TGF-?1 was not modified by addition of phenolic acids to HT-29 cells. Results showed that durum cultivars have different contents of phenolic acids, suggesting that a number of elite varieties could be used for breeding purposes. Moreover, results provide further insight into the health-related benefits of durum wheat foods as depending on the anti-inflammatory activity of phenolic acids.

Autore Pugliese

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  • Laddomada B.; Durante M.; Minervini F.; Garbetta A.; Cardinali A.; D'Antuono I.; Caretto S.; Blanco A.; Mita F.

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Anno di pubblicazione

2015

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