Optimization of Osmotic Drying Parameters for Button Mushroom (Agaricus bisporus)

Birendra Kumar Mehta, Sanjay Kumar Jain, Gyanendra Prakash Sharma, Vishvambhar Dayal Mudgal, Radha Charan Verma, Anila Doshi, Hemant Kumar Jain
2012 Applied Mathematics  
Response surface methodology was used to investigate the effect of brine concentration (10% -20%) solution temperature (35˚C -55˚C), and duration of osmosis (30 -60 min) with respect to water loss (WL) and salt gain (SG). The solution to sample ratio of 5/1 (w/w) was used. The Box-Behnken design of three variables and three levels including seventeen experiments formed by five central points were used for optimizing input parameters. Linear, quadratic and interaction effects of three variables
more » ... of three variables were analyzed with respect to water loss and solid gain. For each response, second order polynomial models were developed using multiple regression analysis. Analysis of variance (ANOVA) was performed to check the adequacy and accuracy of the fitted models. The response surfaces and contour maps showing the interaction of process variables were constructed. The optimum operating conditions were: solution temperature 44.89˚C, brine concentration of 16.53 per cent and duration of osmosis of 47.59 min. At this optimum point, water loss and salt gain were predicted to be 44.55 per cent and 2.98 per cent respectively. Selected. The optimum values of process variables obtained by numerical optimization: Temperature of brine, ˚C: 44.89 ≈ 45; Concentration of salt, %: 16.53 ≈ 17; Duration of osmosis, min: 47.59 ≈ 48.
doi:10.4236/am.2012.330186 fatcat:gxohoqqr2rbp5oqom5gefsg42a