Rheological Modeling and Characterization of Ficus platyphylla Gum Exudates
Joint Authors
Ameh, Paul O.
Ebenso, Eno E.
Gimba, Casimir E.
Eddy, Nnabuk O.
Source
Issue
Vol. 2013, Issue 2013 (31 Dec. 2013), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2012-09-12
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
Ficus platyphylla gum exudates (FP gum) have been analyzed for their physicochemical parameters and found to be ionic, mildly acidic, odourless, and yellowish brown in colour.
The gum is soluble in water, sparingly soluble in ethanol, and insoluble in acetone and chloroform.
The nitrogen (0.39%) and protein (2.44%) contents of the gum are relatively low.
The concentrations of the cations were found to increase according to the following trend, Mn>Fe>Zn>Pb>Cu>Mg>Cd>Ca.
Analysis of the FTIR spectrum of the gum revealed vibrations similar to those found in polysaccharides while the scanning electron micrograph indicated that the gum has irregular molecular shapes, arranged randomly.
The intrinsic viscosity of FP gum estimated by extrapolating to zero concentrations in Huggins, Kraemer, Schulz-Blaschke, and Martin plots has an average value of 7 dL/g.
From the plots of viscosity versus shear rate/speed of rotation and also that of shear stress versus shear rate, FP gum can be classified as a non-Newtonian gum with characteristics-plastic properties.
Development of the Master_s curve for FP gum also indicated that the gum prefers to remain in a dilute domain (C The apparent activation energy of flow for FP gum (calculated from Arrhenius-Frenkel-Eyring plot) was relatively low and indicated the presence of fewer inter- and intramolecular interactions.
American Psychological Association (APA)
Eddy, Nnabuk O.& Ameh, Paul O.& Gimba, Casimir E.& Ebenso, Eno E.. 2012. Rheological Modeling and Characterization of Ficus platyphylla Gum Exudates. Journal of Chemistry،Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-457754
Modern Language Association (MLA)
Eddy, Nnabuk O.…[et al.]. Rheological Modeling and Characterization of Ficus platyphylla Gum Exudates. Journal of Chemistry No. 2013 (2013), pp.1-10.
https://search.emarefa.net/detail/BIM-457754
American Medical Association (AMA)
Eddy, Nnabuk O.& Ameh, Paul O.& Gimba, Casimir E.& Ebenso, Eno E.. Rheological Modeling and Characterization of Ficus platyphylla Gum Exudates. Journal of Chemistry. 2012. Vol. 2013, no. 2013, pp.1-10.
https://search.emarefa.net/detail/BIM-457754
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-457754