Study on the Application Stability of Grape Skin Red Raw Materials from Different Production Regions in Fruit Juice Beverages
This study explored the application stability of imported and domestic grape skin red raw materials in fruit juice beverages,with absorbance and color changes as observation indicators.The experimental design included heating tests at 80 ℃ and 100 ℃,abuse tests for long-term storage at 37 ℃,light failure tests simulating sunlight exposure,and stability observations under normal temperature conditions.The experimental results showed that imported raw materials exhibited browning earlier than domestic raw materials in heating tests at 80 ℃ and 100 ℃ as well as under normal temperature conditions.Under 37 ℃,imported raw materials faded faster.The light failure test revealed that the pigment of imported raw materials exhibited complex coloration,and was unstable.Based on a comprehensive assessment,the color stability of domestic grape skin red pigment in fruit juice beverages is superior to that of imported ones.