Production of antioxidant dietary fibre powder from cabbage outer leaves
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Publication Details
Author list: Nilnakara S., Chiewchan N., Devahastin S.
Publisher: Elsevier
Publication year: 2009
Journal: Food and Bioproducts Processing (0960-3085)
Volume number: 87
Issue number: 4
Start page: 301
End page: 307
Number of pages: 7
ISSN: 0960-3085
Languages: English-Great Britain (EN-GB)
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Abstract
White cabbages have been reported to contain high amount of dietary fibre (DF) and bioactive agents with high antioxidant activity. However, outer leaves of cabbages are discarded and treated as wastes and may only be used for fertilizer or animal feed. It is interesting to transform the residue into a value added product. The production of dietary fibre powder associated with antioxidant activity produced from cabbage outer leaves was developed in this study. The effects of hot-water blanching and hot air drying temperature (70-90 °C) on the quality of dietary fibre powder produced from cabbage outer leaves were investigated. The quality of interest was measured in terms of proximate composition and visual colour. The dominant antioxidant substances, i.e. phenolic content and vitamin C, as well as total antioxidant activity, as determined by β-carotene bleaching method, were also evaluated. The information obtained could provide a guideline for industrial application. © 2009 The Institution of Chemical Engineers.
Keywords
Phenolic content, Waste utilization
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