Studies On Processing Technology Of The Pomegranate-almond Compoud Protein Beverage

Pomegranate belongs to Punical plant in Punicaceae.It has all sorts of minaral,vitamin and amino acid essential to hunman body, is a kind of fruit with nutrition and medicinal effect.Almond is ripe seed from apricot belong to plum of Rosebush. Almond can be divided into sweet almond and bitter almond.Almond is often used in medicine industry for strong medicinal effect. Furthermore almond has high value of nutrition and health,is a kind of important materials in food industry.The pomegranate supplied by Lintong district of Xian city and bitter almond from Wuqi county of Shanxi were used as raw materials in the test to exploit a kind of nolvety compond protein beverage and make pomegranate and bitter almond complement each other in flavour and nutrition.the test studies a series of technologies such as stabilizing color and clarification for pomegranate juice,peeling and removing bitter sapor for bitter almond,milling, stability of mixed beverage,mixing and concocting of beverage, homogenizing,sterilizing etc have been studied in the paper.The test results show as follows:1 The optimum technology of stabilizing color for pomegranate juice is that 0.4% citric acid combined with 0.01% Vc was added to pomegranate juice.2 The optimum parameters of clarifying technology for pomegranate juice is that dealing juice with 0.20%0 pectic enzyme for 2.5h at 45℃,then adding gelatin to juice by 50g/100L and staying for 3h.3 The skin of bitter almond can be easily removed with 0.8% boiling NaOH solution for 2 minutes.4 Citric acid solution was used by 5 times quality as much as almond to remove toxin from bitter almond.The optimum parameters were obtained as follows:0.8% concentration of citric acid solution for 22h at 45℃.5 The optimum technology parameters for almond milling is: 1:18 ratio of almond to water,milling for 7 minutes at 60℃.6 The emulisifying efficiency of mixed emulsifier(the ratio of Glycerol Monostearate and Polyglycerol Monostearates is 10:18) is the best when HLB value equals 6,and the best stabilizer is PGA.