The Process of Extracting Volatile Oil from the Micropowder of Rhizoma Curcumea
Abstract:ObjectiveTo study the effect of grinding degree of material,quantity of water and distillation time upon volatile oil yield. To sutdy experimental parameters on extraction rate.MethodsThe experiment was carried out with L9(34)orthogonal design,by determining the volatile oil yield,to study the effect of grinding degree of material,quantity of water and distillation time upon volatile oil yield. Experimental parameters on extraction rate was studied with contrast test.ResultsGrinding degree of material,quantity of water and extraction time had remarkable effect upon volatile oil yield.The optimum parameters were as follows:grinding degree of Rhizoma Curcumea trumeric was 40~80mesh powder,ratio of material and water was 1∶40,distillation time was 2 h.ConclusionVolatile oil yield increases as the grinding degree of material, quantity of water for distillation time increase.Grinding degree of material and quantity of water has positive effect upon extraction rate.