Article (Scientific journals)
Influence of oven-drying temperature on physico-chemical and functional properties of date fibre concentrates
Borchani, C.; Besbes, S.; Masmoudi, M. et al.
2011In Food and Bioprocess Technology
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Keywords :
Dietary fibre . Date . Cultivars; Drying . Proximate composition; Functional characteristics
Abstract :
[en] Agri-food by-products rich in dietary fibres may be used as feeds and health foods. Owing to its high fibre content, date flesh could be useful in human nutrition. It is interesting to study the influence of oven-drying temperatures of date fibre concentrates (DFC) on their physicochemical and functional properties for possible use as a potential fibre source in the enrichment of food. DFC from 11 Tunisian date cultivars were dried at different temperatures (40, 50 and 60 °C) and analysed regarding proximate composition (moisture, ash, protein and lipids), physicochemical (water activity (aw), pH) and functional properties (water holding capacity (WHC), swelling capacity (SC), oil holding capacity (OHC) and emulsifying capacity (EC)). DFC dried at different temperatures showed interesting functional characteristics such as hydration properties, high OHC (2.73–4.60 g oil/g dry fibre) and EC (5.93–12.87%) values. Although drying temperatures promoted little modifications affecting the physicochemical properties of DFC, significant decreases in WHC, SC and EC of DFC were noticed at the highest temperature (60 °C) for most of the date varieties. The observed influence of drying temperature on functional DFC properties calls for the use of low temperature in order to obtain DFC as suitable food ingredient.
Disciplines :
Food science
Author, co-author :
Borchani, C.
Besbes, S.
Masmoudi, M.
Blecker, Christophe ;  Université de Liège - ULiège > Chimie et bio-industries > Laboratoire des Sciences des aliments et formulation
Deroanne, Claude
Attia, H.
Language :
English
Title :
Influence of oven-drying temperature on physico-chemical and functional properties of date fibre concentrates
Publication date :
20 February 2011
Journal title :
Food and Bioprocess Technology
ISSN :
1935-5130
eISSN :
1935-5149
Publisher :
Springer, New York, United States - New York
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 30 April 2012

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