Shrgawi, Norsyabila and Shamsudin, Intan Juliana and Hanibah, Hussein and Mohd Noor, Siti Aminah and Kasim, Norherdawati (2022) Purification on kappa carrageenan by re-precipitation technique. In: International Conference on Research and Practices in Science, Technology and Social Sciences (I-Crest 2022), 23 July 2022, via virtual conference. (Submitted)
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Abstract
Purification on kappa (R) carrageenan was performed by dissolving R-carrageenan powder in distilled water and re-precipitated in a polar solvent (ethanol) and non-polar solvent (n-hexane) separately during re-precipitation process. The purified kappa carrageenan was analyzed by using Fourier transform infrared (FTIR) spectroscopy and carbon, hydrogen, nitrogen, and sulfur (CHNS) elemental analysis. The outcomes from FTIR showed there are physical changes due to intermolecular interactions which lead to decrease and lower intensity of hydroxyl band at 3345 cm"
' after re-precipitated with n-hexane, compared to re-precipitation with ethanol and unpurified k-carrageenan. There were variations observed in the percentages of C, H and S in the CHNS analysis between unpurified and purified R-carrageenan. The successfully purified R-carrageenan are suitable to be used for further application.
| Item Type: | Conference or Workshop Item (Paper) |
|---|---|
| Uncontrolled Keywords: | purification, precipitation, k-carrageenan, biopolymer. |
| Subjects: | Q Science > Q Science (General) Q Science > QD Chemistry T Technology > T Technology (General) |
| Divisions: | Centre For Defence Foundation Studies |
| Depositing User: | Mr Shahrim Daud |
| Date Deposited: | 16 Jan 2023 02:36 |
| Last Modified: | 16 Jan 2023 02:36 |
| URI: | http://ir.upnm.edu.my/id/eprint/141 |
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