Mixtures of S. Rebaudiana Leaves and Stems Waste for Steviosides Synthesis Using Ethanol-Water Solvents
Mixtures of S.rebaudiana leaves and stems waste were applied for steviosides synthesis. The various ethanol-water as polarity solvents were employed in the ultrasound-assisted extraction (UAE). The HPLC (High Performance Liquid Chromatography) with Eurospher 100–5NH2 column at 1mL/m3 were used for s...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
| Published: |
Malaysian Technical Universities Network (MTUN)
2014
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| Subjects: | |
| Online Access: | http://umpir.ump.edu.my/id/eprint/9071/ http://umpir.ump.edu.my/id/eprint/9071/ http://umpir.ump.edu.my/id/eprint/9071/1/Mixtures%20Of%20S.%20Rebaudiana%20Leaves%20And%20Stems%20Waste%20For%20Steviosides%20Synthesis%20Using%20Ethanol-Water%20Solvents.pdf |
| Summary: | Mixtures of S.rebaudiana leaves and stems waste were applied for steviosides synthesis. The various ethanol-water as polarity solvents were employed in the ultrasound-assisted extraction (UAE). The HPLC (High Performance Liquid Chromatography) with Eurospher 100–5NH2 column at 1mL/m3 were used for steviosides analysis. The maximum yields were achieved by the time of 30 min., temperature of 40oC and ethanol-water ratio of 80:20 (v/v). The second order kinetics model best fits the obtained data with R2 and k of 0.992 and 0.02 min-1. Utilization of wastes as an alternative feed stock provides a cost-effective and environmental friendly way for steviosides extraction.More extensive investigation needs to be performed to compare the various advantageous processing and technical feasibilty. |
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