Article ; Online: Rheological Modeling, Spectroscopic and Physicochemical Characterization of Raphia hookeri (RH) Gum Exudate
Walailak Journal of Science and Technology, Vol 12, Iss
2014 Volume 5
Abstract: Raphia hookeri (RH) gum exudate has been analysed for physical (colour, odour, taste, pH, salinity, turbidity), chemical (solubility in some solvents, proximate/elemental composition, vitamin composition, phytochemicals and anti-nutrients) and ... ...
| Abstract | Raphia hookeri (RH) gum exudate has been analysed for physical (colour, odour, taste, pH, salinity, turbidity), chemical (solubility in some solvents, proximate/elemental composition, vitamin composition, phytochemicals and anti-nutrients) and spectroscopic (wavelength of maximum absorption, GCMS, FTIR and SEM) properties. The results obtained from the study revealed that RH gum has the potential for utilization as an emulsifier, a food additive and as a pharmaceutical excipient. Rheological modeling on the gum revealed that the average intrinsic value of the gum, (deduced from Huggins, Kraemer, Tanglerpaibul and Rao models) is approximately 3.0 dl/g. The calculated values of Huggins and Kraemer constants revealed the existence of molecular association in the gum. The gum is found to possess unique rheological properties including absence of degradation/conformational changes, existent of intra and inter molecular interactions, adoption of random coil model and absent of coil overlap transition. RH gum is a shear thinning, non- Newtonian gum with pseudo-plastic behavior. The calculated thermodynamic parameters were comparable to those reported for some food gums. doi:10.14456/WJST.2015.87 |
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| Keywords | Raphia hookeri gum ; physicochemical analysis ; rheological modeling ; food additives ; pharmaceutical excipient ; Technology (General) ; T1-995 ; Science (General) ; Q1-390 |
| Subject code | 660 |
| Language | English |
| Publishing date | 2014-03-01T00:00:00Z |
| Publisher | Walailak University |
| Document type | Article ; Online |
| Database | BASE - Bielefeld Academic Search Engine (life sciences selection) |
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