The Physical And Chemical Analysis Of Ujimqin Sheep Tail And The Development Of Suet Soap

This study determined and analysed the nutrients (moisture, crude fat and ash) and chemical indicators (acid value, iodine value and saponification value) of Ujimqin sheep tail.Secondly, use the fat in Ujimqin sheep tail to make enough bars of suet soaps. Confirm the optimum temperature of suet soap making, optimum concentration of NaOH solution and optimal proportion of fat. Compare the difference between hot soap making and cold process soap.The results show that the average content of moisture, crude fat, acid value, iodine value and saponification value are10.0%,87.163%,0.67mg/g,39.54g/100g and172.96mg/g. Ujimqin sheep tail oil is white solid at room temperature, existing the special smell of sheep oil. There are17ashes in Ujimqin sheep tail oil, including51.182%,3.393%and45.425%.(2) The average content of acid value is0.67mg/g, iodine value is39.54g/100g and saponification value is172.96mg/g. Ujimqin sheep tail oil is white solid at room temperature. It has the special smell of sheep oil.(3) Useing40g Ujimqin sheep tail oil and25ml NaOH solution to moke soap, the optimum condition of soap making is:at temperature of50℃, NaOH solution concentration is30%. Fat ratio is sheep tail:palm oil:olive oil:coconut oil (1.5:1.5:1:1).(4) The difference between cold process soap and hot making soap is cold process soap’s Soap Alkali Lye viscosity is higher than hot making soap. Its PH value, hardness and free alkali are lower than hot making soap. So cold process soap is more mild and smooth. It has lower skin irritation.