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Decolorization of sugar syrups using commercial and sugar beet pulp based activated carbons
Date
2008-06-01
Author
Mudoga, H. L.
Yücel, Hayrettin
Kincal, N. S.
Metadata
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This work is licensed under a
Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License
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Sugar syrup decolorization was studied using two commercial and eight beet pulp based activated carbons. In an attempt to relate decolorizing performances to other characteristics, surface areas, pore volumes, bulk densities and ash contents of the carbons in the powdered form; pH and electrical conductivities of their suspensions and their color adsorption properties from iodine and molasses solution were determined. The color removal capabilities of all carbons were measured at 1/100 (w/w) dosage, and isotherms were determined on better samples. The two commercial activated carbons showed different decolorization efficiencies; which could be related to their physical and chemical properties. The decolorization efficiency of beet pulp carbon prepared at 750 degrees C and activated for 5 h using CO, was much better than the others and close to the better one of the commercial activated carbons used. It is evident that beet pulp is an inexpensive potential precursor for activated carbons for use in sugar refining.
Subject Keywords
Sugar syrup
,
Decolorization
,
Activated carbon
,
Beet pulp
URI
https://hdl.handle.net/11511/32360
Journal
BIORESOURCE TECHNOLOGY
DOI
https://doi.org/10.1016/j.biortech.2007.07.058
Collections
Graduate School of Natural and Applied Sciences, Article