Article (Scientific journals)
Use of a Plackett-Burman experimental design to examine the impact of extraction parameters on yields and compositions of pectins extracted from chicory roots (Chicorium intybus L.)
Robert, Christelle; Devillers, Thierry; Wathelet, Bernard et al.
2006In Journal of Agricultural and Food Chemistry, 54 (19), p. 7167-7174
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Abstract :
[en] Chicory root pectin was isolated by acid extraction followed by alcohol precipitation. Because the extraction conditions have important effects on the features of pectins, an experimental design was used to study the influence of 17 different extraction parameters on yield and composition of pectin: pH, temperature, time of extraction, solid/liquid ratio, and different pretreatments of the pulps before extraction. Twenty extractions were conducted and examined for their significance on yield and sugar content using the Plackett-Burman factorial design. The acid extraction of chicory roots resulted in an average yield of 11% containing 86% of sugars. It was found that extraction temperature, time, protease pretreatment, water purity, and water washing of pulps significantly affected yield and pectin composition with an increase of yield and purity of pectin in harsher extraction conditions.
Disciplines :
Food science
Author, co-author :
Robert, Christelle
Devillers, Thierry
Wathelet, Bernard ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Van Herck, Jean-Claude
Paquot, Michel ;  Université de Liège - ULiège > Gembloux Agro-Bio Tech > Gembloux Agro-Bio Tech
Language :
English
Title :
Use of a Plackett-Burman experimental design to examine the impact of extraction parameters on yields and compositions of pectins extracted from chicory roots (Chicorium intybus L.)
Publication date :
2006
Journal title :
Journal of Agricultural and Food Chemistry
ISSN :
0021-8561
eISSN :
1520-5118
Publisher :
American Chemical Society, Washington, United States - District of Columbia
Volume :
54
Issue :
19
Pages :
7167-7174
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 21 December 2009

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