TY - JOUR
TI - Adsorption isotherms of pear at several temperatures
AU - Mitrevski Vangelče
AU - Lutovska Monika
AU - Mijakovski Vladimir
AU - Pavkov Ivan S
AU - Babić Mirko M
AU - Radojčin Milivoje T
JN - Thermal Science
PY - 2015
VL - 19
IS - 3
SP - 1119
EP - 1129
PT - Article
AB - The moisture adsorption isotherms of pear were determined at 15ºC, 30ºC and  45ºC using the standard static gravimetric method over a range of water  activity from 0.112 to 0.920. The experimental data were fitted with isotherm  equations recommended in ASAE Standard D245.5. In order to find which  equation gives the best results, large number of numerical experiments were  performed. After that, several statistical criteria proposed in scientific  literature for estimation and selection of the best sorption isotherm  equations were used. For each equation and experimental data set, the average  performance index was calculated and models were ranked afterwards. After  that, some statistical rejection criteria were checked (D’Agostino-Pearson  test of normality, single-sample run test and significance and precision of  the model parameters). The performed statistical analysis shows that the  Guggenheim-Anderson-de Boer (GAB) equation has the highest value of average  performance index, but higher correlation between pair of parameters leads to  lower precision of estimated parameters.[Projekat Ministarstva nauke  Republike Srbije, br. TR 31058]