Article (Scientific journals)
Study of the sorption behavior of Hibscus sabdariffa anthocyanins on a macroporous resin
Beye, Cheikh; Souk Tounkara, Lat; Destain, Jacqueline et al.
2013In Journal of Food Process Engineering, 36 (5), p. 579-590
Peer Reviewed verified by ORBi
 

Files


Full Text
10.1111-jfpe.12020.pdf
Author postprint (388.58 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
Hibiscus sabdariffa; Anthocyanins; Adsorption kinetics
Abstract :
[en] The adsorption of Hibiscus sabdariffa sp. anthocyanins onto a macroporous resin was studied in laboratory experiments. The anthocyanin aqueous extracts obtained from the calyces were used in agitated batch experiments with a macroporous resin. The adsorption kinetics and isotherms of H. sabdariffa anthocyanins on a selected macroporous resin was studied to determine the parameters that have to be optimized to recover the anthocyanins from aqueous extracts of the calyces. The adsorption kinetic experimental data were fit into a pseudo second order kinetic model, which was then used to determine several parameters such as the contact time necessary to reach equilibrium as well as the maximum adsorption capacity. The best fit for the equilibrium adsorption isotherm experimental data was obtained with the Langmuir isotherm model. Based on qualitative and quantitative interpretation of the experimental data, the resin that was tested here appeared to have good adsorption capacity for the anthocyanins even though the necessary time to reach equilibrium was particularly long. Three aspects of the desorption of anthocyanins from the resin were studied: the speed of release of the anthocyanins (desorption kinetics), the extent of the anthocyanin desorption depending on the adsorption contact time and finally, the influence of the mobile phase's characteristics
Disciplines :
Life sciences: Multidisciplinary, general & others
Author, co-author :
Beye, Cheikh ;  Université de Liège - ULiège > Doct. sc. agro. & ingé. biol.
Souk Tounkara, Lat;  Institute of Food Technology (Dakar, Sénégal)
Destain, Jacqueline ;  Université de Liège - ULiège > Chimie et bio-industries > Bio-industries
Zgoulli, Slim
Sadikh Ndoye, Ababacar;  Institute of Food Technology (Dakar, Sénégal)
Thonart, Philippe ;  Université de Liège - ULiège > Département des sciences de la vie > Biochimie et microbiologie industrielles
Language :
English
Title :
Study of the sorption behavior of Hibscus sabdariffa anthocyanins on a macroporous resin
Publication date :
October 2013
Journal title :
Journal of Food Process Engineering
ISSN :
0145-8876
eISSN :
1745-4530
Publisher :
Blackwell Publishing
Volume :
36
Issue :
5
Pages :
579-590
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 22 September 2013

Statistics


Number of views
100 (9 by ULiège)
Number of downloads
1 (1 by ULiège)

Scopus citations®
 
7
Scopus citations®
without self-citations
7
OpenCitations
 
5

Bibliography


Similar publications



Contact ORBi