Preparation and Physicochemical Properties of Duck Oil Diglycerides Lyophilized Powder
By carrying out the research on the preparation process of duck oil diglycerides lyophilized powder and the physicochemical properties of the product,this experiment aimed to determine the most ideal wall material,emulsifier,freeze-drying technology for duck oil diglycerides lyophilized powder and to explore the product properties of duck oil diglycerides lyophilized powder.Response surface optimization and in vitro simulated digestion tests were used to determine the product performance indexes such as embedding rate,peroxide value,particle size and solubility.The test results showed that:wall material ratio,wall material and core material ratio,emulsion water content,emulsifier addition could affect the duck oil diglycerides lyophilized powder embedding rate;wall material and core material ratio of 1∶1.12(w/w),wall material emulsion water content of 82.67％,emulsifier addition amount of 3.13％,duck oil glycerol diester lyophilized powder embedding rate of 89.02％,to reach a more ideal level.The lyophilized powder of duck oil diglycerides has a long storage period,the embedded structure is small and slow decomposition,and it has high solubility and antioxidant ability.In conclusion,duck oil diglycerides lyophilized powder has better digestibility and storage performance than duck oil powder,improved the storage status of diglycerides and provides important technical support for the development of low-fat food based on diglycerides.
NETL
NSTL
万方数据
