响应面法优化复合型红酸汤乳化工艺

Optimization of Emulsification of Mixed-red Sour Soup by Response Surface Method

为了解决复合型红酸汤"油酸分离"导致风味、色泽不佳等问题,以吸光度及离心后出油量作为评价复合型红酸汤乳化液稳定性的指标,通过单因素试验筛选出乳化剂的最佳添加量及乳化温度、乳化时间,利用响应面法对影响复合型红酸汤的乳化工艺的因素进行优化。结果表明,最佳乳化条件为:蔗糖酯添加量0.21%,单甘酯的添加量为0.20%,乳化温度为64.73℃,乳化时间为3.09 min,在此工艺条件下,复合型红酸汤吸光度为0.434,稳定性好,不易发生油水分离现象,感官品质好。

The oil-water separation affected the flavor and color of mixed-Red Sour Soup. In order to solve this problem, we investigated the e？ect of sucrose ester content, mono-glycerides content, emulsifying temperature, emulsifying time on the absorbance value of emulsion of mixed-Red Sour Soup and the amount of separated oil after centrifuge using single factor experiment and response surface methodology. Results shows that the absorbance value of emulsion of mixed-Red Sour Soup under the optimized conditions of 0.21% sucrose ester content, 0.20% mono-glycerides content, 64.73℃ and 3.09 min was experimentally measured as 0.436. In this condition, the phenomenon of oil-water separation, is less likely to happen in the mixed-Sour Soup with high stability and better sensory quality.