Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat
Polyphenols in pigmented cereals are believed to enhance health outcomes through their antioxidant properties. This study aimed to characterise polyphenols from <i>Hordeum vulgare</i> (purple barley), <i>Triticum turgidum</i> (purple wheat) and <i>Triticum aestivum</...
| Main Authors: | , , , , |
|---|---|
| Format: | Article |
| Language: | English |
| Published: |
MDPI AG
2022-11-01
|
| Series: | Foods |
| Subjects: | |
| Online Access: | https://www.mdpi.com/2304-8158/11/22/3697 |
| _version_ | 1827644417868038144 |
|---|---|
| author | Borkwei Ed Nignpense Sajid Latif Nidhish Francis Christopher Blanchard Abishek Bommannan Santhakumar |
| author_facet | Borkwei Ed Nignpense Sajid Latif Nidhish Francis Christopher Blanchard Abishek Bommannan Santhakumar |
| author_sort | Borkwei Ed Nignpense |
| collection | DOAJ |
| description | Polyphenols in pigmented cereals are believed to enhance health outcomes through their antioxidant properties. This study aimed to characterise polyphenols from <i>Hordeum vulgare</i> (purple barley), <i>Triticum turgidum</i> (purple wheat) and <i>Triticum aestivum</i> (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; <i>p</i> < 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. |
| first_indexed | 2024-03-09T18:19:21Z |
| format | Article |
| id | doaj.art-20c9962ecce84af19e6b66828bf5ef33 |
| institution | Directory Open Access Journal |
| issn | 2304-8158 |
| language | English |
| last_indexed | 2024-03-09T18:19:21Z |
| publishDate | 2022-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Foods |
| spelling | doaj.art-20c9962ecce84af19e6b66828bf5ef332023-11-24T08:22:52ZengMDPI AGFoods2304-81582022-11-011122369710.3390/foods11223697Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and WheatBorkwei Ed Nignpense0Sajid Latif1Nidhish Francis2Christopher Blanchard3Abishek Bommannan Santhakumar4School of Dentistry and Medical Sciences, Charles Sturt University, Locked Bag 588, Wagga Wagga, NSW 2678, AustraliaNational Life Sciences Research Hub, Faculty of Science and Health, Charles Sturt University, Wagga Wagga, NSW 2795, AustraliaSchool of Agricultural, Environment and Veterinary Sciences, Charles Sturt University, Wagga Wagga, NSW 2650, AustraliaSchool of Dentistry and Medical Sciences, Charles Sturt University, Locked Bag 588, Wagga Wagga, NSW 2678, AustraliaSchool of Dentistry and Medical Sciences, Charles Sturt University, Locked Bag 588, Wagga Wagga, NSW 2678, AustraliaPolyphenols in pigmented cereals are believed to enhance health outcomes through their antioxidant properties. This study aimed to characterise polyphenols from <i>Hordeum vulgare</i> (purple barley), <i>Triticum turgidum</i> (purple wheat) and <i>Triticum aestivum</i> (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; <i>p</i> < 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.https://www.mdpi.com/2304-8158/11/22/3697polyphenolspigmented cerealsantioxidantgastrointestinal digestionbioaccessibility |
| spellingShingle | Borkwei Ed Nignpense Sajid Latif Nidhish Francis Christopher Blanchard Abishek Bommannan Santhakumar Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat Foods polyphenols pigmented cereals antioxidant gastrointestinal digestion bioaccessibility |
| title | Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat |
| title_full | Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat |
| title_fullStr | Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat |
| title_full_unstemmed | Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat |
| title_short | Bioaccessibility and Antioxidant Activity of Polyphenols from Pigmented Barley and Wheat |
| title_sort | bioaccessibility and antioxidant activity of polyphenols from pigmented barley and wheat |
| topic | polyphenols pigmented cereals antioxidant gastrointestinal digestion bioaccessibility |
| url | https://www.mdpi.com/2304-8158/11/22/3697 |
| work_keys_str_mv | AT borkweiednignpense bioaccessibilityandantioxidantactivityofpolyphenolsfrompigmentedbarleyandwheat AT sajidlatif bioaccessibilityandantioxidantactivityofpolyphenolsfrompigmentedbarleyandwheat AT nidhishfrancis bioaccessibilityandantioxidantactivityofpolyphenolsfrompigmentedbarleyandwheat AT christopherblanchard bioaccessibilityandantioxidantactivityofpolyphenolsfrompigmentedbarleyandwheat AT abishekbommannansanthakumar bioaccessibilityandantioxidantactivityofpolyphenolsfrompigmentedbarleyandwheat |