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The Potential of Spent Barley as a Functional Food Ingredient: Study on the Comparison of Dietary Fiber and Bioactivity
| Content Provider | MDPI |
|---|---|
| Author | Aneta, Wojdyło Naibaho, Joncer Korzeniowska, Małgorzata Figiel, Adam Yang, Baoru Laaksonen, Oskar Foste, Maike Vilu, Raivo Viiard, Ene |
| Copyright Year | 2020 |
| Description | This research aimed to conduct a comparison of 8 different forms of brewery spent grain (BSG) on their polyphenolic content and antioxidant capacity as part of their potential as a functional food ingredient. The BSGs were dried until they reached a stable weight, grounded to pass through a 385 µm sieve and were vacuum packed in non-transparent packaging for further analysis. The results showed that BSG contained a high dietary fiber content which was dominated by a insoluble dietary fiber level of about 38.0–43.9% and a soluble dietary fiber content of about 3.9–9.6%. There were three groups of polyphenolic identified: flavan-3-ols, phenolic acids and flavonols at quantities of 362.1–1165.7 mg/kg, 65.8–122.5 mg/kg and 3.6–13.8 mg/kg, respectively. Antioxidant capacity was examined using an in vitro assessment: the 2,2′-Azinobis-(3-Ethylbenzthiazolin-6-Sulfonic Acid) (ABTS) capacity ranged from 0.086 to 0.241 mmol Trolox/100 g while the ferric reducing antioxidant potential (FRAP) capacity ranged from 0.106 to 0.306 µmol TE/100 g. In conclusion, BSG as a brewery waste can potentially be used as a functional food ingredient due to its properties. It is suggested that further studies are needed to explore BSG’s impact on the development of functional food products. |
| Starting Page | 86 |
| e-ISSN | 25043900 |
| DOI | 10.3390/foods_2020-08486 |
| Journal | Proceedings |
| Issue Number | 1 |
| Volume Number | 70 |
| Language | English |
| Publisher | MDPI |
| Publisher Date | 2020-11-20 |
| Access Restriction | Open |
| Subject Keyword | Proceedings Paper and Wood Brewery Spent Grain Valorization Agricultural By-products Functional Food Dietary Fiber Polyphenolic Compounds Antioxidant |
| Content Type | Text |
