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Published (Version of record)CC BY V4.0, Open Access
Published (Version of record)CC BY V4.0, Open
Journal article
Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat
Foods, Vol.11(22), 3697
18/11/2022
PMID: 36429289
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Abstract
Polyphenols in pigmented cereals are believed to enhance health outcomes through their antioxidant properties. This study aimed to characterise polyphenols from Hordeum vulgare (purple barley), Triticum turgidum (purple wheat) and Triticum aestivum (blue wheat) in order to evaluate their bioaccessibility and antioxidant activity. An ultra-high performance liquid chromatography mass spectrometry coupled with an online 2,2'-azino-bis (3-ethylbenzothiazoline-6-sulfonic acid) system was used to identify the polyphenols and quantify their relative antioxidant levels. Simulated gastrointestinal digestion of the cereals allowed for the assessment of polyphenol bioaccessibility using benchtop assays. Between cereals, the bioaccessible phenolic content was similar following digestion, but the antioxidant activity was significantly different (purple barley > purple wheat > blue wheat; p < 0.01). Among the polyphenols identified, flavan-3-ols and anthocyanins were the least bioaccessible whereas flavones were the most bioaccessible after digestion. This study demonstrated that these pigmented cereal varieties are sources of bioaccessible polyphenols with antioxidant activity. These findings may aid in utilising these pigmented grains for the future design and development of novel functional food products with enhanced health properties.
Details
- Title
- Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat
- Creators
- Borkwei Ed Nignpense - Charles Sturt UniversitySajid Latif - Charles Sturt UniversityNidhish Francis - Charles Sturt UniversityChristopher Blanchard - Charles Sturt UniversityAbishek Bommannan Santhakumar - Charles Sturt University
- Publication Details
- Foods, Vol.11(22), 3697
- Publisher
- Mdpi
- Number of pages
- 16
- Grant note
- Charles Sturt University Australian Government Research Training Program Scholarship; Australian Government; Department of Industry, Innovation and Science
- Identifiers
- 991013204208102368
- Copyright
- © 2022 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license. (https://creativecommons.org/licenses/by/4.0/).
- Academic Unit
- Faculty of Health
- Language
- English
- Resource Type
- Journal article