Optimization of Hydrocolloid Extraction From Wild Sage Seed (Salvia macrosiphon) Using Response Surface

The effect of temperature (25-80°C), water to seed ratio (25:1-85:1) and pH (3-9) on the yield, apparent viscosity and emulsion stability index of wild sage seed hydrocolloid was investigated. The generated quadratic model showed that the optimum conditions for maximizing the responses were when temperature was 25°C, water to seed ratio was 51:1 and pH was 5.5. All hydrocolloid solutions (1% w/v) showed shear thinning behavior in different extraction conditions, consistency coefficient and flow behavior index varied from 4.455 to 9.435 (Pa.s n ), and 0.317 to 0.374, respectively. Besides, the chemical compositions of the seed and extracted gum were determined at optimal conditions.