Antioxidant and Physicochemical Properties of Hydrogen Peroxide-Treated Sugar Beet Dietary Fibre

The aim of the present work was to examine if hydrogen peroxide treatment of sugar beet fibre that aimed at improving its physicochemical properties would impair its antioxidant potential. Three different sugar beet fibres were obtained from sugar beet – non‐treated fibre (NTF) from sugar beet cosse...

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Published in:	Phytotherapy research Vol. 30; no. 5; pp. 855 - 860
Main Authors:	Mišan, Aleksandra, Sakač, Marijana, Medić, Đorđe, Tadić, Vanja, Marković, Goran, Gyura, Julliana, Pagano, Ester, Izzo, Angelo A., Borrelli, Francesca, Šarić, Bojana, Milovanović, Ivan, Milić, Nataša
Format:	Journal Article
Language:	English
Published:	England Blackwell Publishing Ltd 01-05-2016 Wiley Subscription Services, Inc
Subjects:	antioxidant activity Antioxidants Beta vulgaris - chemistry Caco-2 cell assay Dietary Fiber - analysis Fibrex Humans Hydrogen Peroxide - chemistry non-treated fibre sugar beet fibre treated fibre non-treated fibre Caco-2 cell assay treated fibre sugar beet fibre antioxidant activity Fibrex
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Summary:	The aim of the present work was to examine if hydrogen peroxide treatment of sugar beet fibre that aimed at improving its physicochemical properties would impair its antioxidant potential. Three different sugar beet fibres were obtained from sugar beet – non‐treated fibre (NTF) from sugar beet cossettes extracted with sulphurous acid, treated fibre (TF) from NTF treated with hydrogen peroxide in alkaline solution and commercially available Fibrex®. The antioxidant activity of extractable and non‐extractable fibre fractions in ethanol/water mixture (80:20, v/v) of three fibre samples was estimated. Non‐extractable fractions obtained after alkaline treatment of investigated fibres were much higher in phenolic compounds and possessed higher antioxidant potential than extractable fractions. Ferulic acid was proven to be the dominant phenolic acid. Regarding both extractable and non‐extractable fractions, Fibrex® had the highest antioxidant activity in chemical tests, while NTF was superior in comparison with TF. Based on the results of Caco‐2 cells‐based test, all non‐extractable fractions possessed potential for reactive oxygen species inhibition. Regarding the extractable fractions, only the TF manifested this effect.Copyright © 2016 John Wiley & Sons, Ltd.
Bibliography:	istex:A2412201FD35751BDC5E4661A489C2C2ECB61293 ark:/67375/WNG-FTSTC5NW-2 Ministry of Education, Science and Technological Development - No. TR-31014; No. TR-31029 ArticleID:PTR5598 ObjectType-Article-1 SourceType-Scholarly Journals-1 ObjectType-Feature-2 content type line 23
ISSN:	0951-418X 1099-1573
DOI:	10.1002/ptr.5598