Formulation of physical properties of methyl glucoside polyester by mixture response surface methodology

Methyl glucoside polyester (MGPE), consisting of a methyl glucoside molecul e esterified with four fatty acids, is a potential fat substitute. A mixtur e response surface methodology was employed to model the physical propertie s (melting point, density, and viscosity) of MGPE prepared from composite b lends of fatty acid methyl esters (FAME). The measured physical properties were similar to those of soybean oil, except for a higher viscosity. The ph ysical properties correlated significantly with the degree of saturation of their composite fatty acids. Results showed that the physical properties o f MGPE prepared from a FAME mixture derived from high oleic acid safflower oil and soybean oil (molar ratio 1:1) was similar to those of soybean oil. The physical properties of MGPE can be adjusted by modifying the saturated fatty acids of synthesized MGPE to simulate the physical properties of soyb ean oil.