Assessment of extraction variables on agar gelling properties from cultural alga (Gracilariopsis persica) by RSM
In this present, response surface methodology was used to investigate the procedure of agar gelling properties from Gracilariopsis persica agarophyte and optimization them formulation. Base on result, three independent variables - alkalinity concentration (2-8%), extraction temperature (90- 120°C) and extraction time (45-240 minutes) - in five levels on viscosity and hysteresis temperature were determined that effects of extraction time and temperature on viscosity and hysteresis temperature were significant (p<0.05). optimum conditions based on the highest viscosity and hysteresis temperature to be for alkalinity concentration, temperature and time extraction 3.2%, 110 °C and 200 minutes, respectively. predicted value were earned 24.7 cP and 65 °C for viscosity and hysteresis temperature, respectively, that were very close to the predicted data and were not statistically different (p>0.05).
| Main Authors: | , , , |
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| Format: | Journal Contribution biblioteca |
| Language: | Persian |
| Published: |
2016
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| Subjects: | Agar, Hysteresis temperature, Surface, Response, Gracilariopsis persica, RSM, Viscosity, Methodology, Temperature, |
| Online Access: | http://hdl.handle.net/1834/10831 |
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