Osmotic Dehydration of Toddy Fruit Cubes in Sugar Solution Using Response Surface Methodology

Khin Swe Oo^1, , Soe Soe Than¹ and Thet Hnin Oo¹

¹Department of Industrial Chemistry, University of Yangon, Yangon, Myanmar

Cite this paper:
Khin Swe Oo, Soe Soe Than and Thet Hnin Oo. Osmotic Dehydration of Toddy Fruit Cubes in Sugar Solution Using Response Surface Methodology. American Journal of Food Science and Technology. 2019; 7(6):175-181. doi: 10.12691/ajfst-7-6-2

Abstract

The response surface methodology (RSM) was applied to optimize the effects of immersion time (60, 90 and 120 min), temperature (35, 45 and 55°C) and concentration of sucrose solution (30, 40 and 50°Brix) in osmotic dehydration of toddy fruit tubes (1cm³). Box-Behnken Design was used with water loss (WL, %), solid gain (SG, %), and weight reduction (WR, %) as responses. The models obtained for all the responses were significant (P≤0.05) without a significant lack of fit. The optimum conditions were temperature (45°C), immersion time (120min), concentration of sucrose solution (40°Brix) in order to obtain WL of (33.867g/100g initial sample), SG of (4.478g/100g initial sample) and WR of 29.39 g/100g initial sample, respectively.

Keywords:
response surface methodology Box-Behnken Design osmotic dehydration toddy fruit tubes

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