摘要
采用单因素方法研究果胶、海藻酸丙二醇酯、大豆多糖添加量对灭菌型乳酸菌饮料稳定性的影响。通过比较饮料的pH、黏度、离心沉淀率、Lumi斜率和粒径分布来研究饮料的稳定性;并通过响应面试验确定了3种稳定剂最佳的复配条件:Pectin888添加量为0.25%、PGA添加量为0.15%、SSPS添加量为0.19%,此时,灭菌型乳酸菌饮料的Lumi斜率为0.2985±0.002,黏度为(16.04±0.13)10-3Pa·s,饮料的稳定性达到最佳。
The effects of pectin, propylene glycol alginate and soybean polysaccharide on the stability of the sterilized lactic acid bacteria beverages were studied by single factor method. The stability of the beverage was studied by comparing the pH, viscosity, centrifugal precipitation rate, Lumi slope, and particle size distribution of the sterilized lactic acid bacteria beverage; and the optimal stabilizer formulation was determined by a response surface test: Pectin 888 0.25%, PGA 0.15% and SSPS 0.19%.At this time, the Lumi slope of the sterilized lactic acid bacteria beverage was 0.2985±0.002, the viscosity was(16.04±0.13)10-3 Pa·s, and the stability of the beverage was optimal.
引文
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