易 余

（利乐贸易（上海）有限公司，上海 200126）

摘要：实现豆奶零添加及大豆蛋白100%利用，无豆腥味的豆奶，以脱皮干豆作为原料，经过按料水比例1∶6（w/w）粗磨、灭酶后，全部豆渣浆料加入定-转子高剪切真空混料机细磨以达到足够细腻的口感，微负压状态下持续保温高剪切一段时间后，测得全豆豆浆浆料粒径分布Dv90 小于160μm，经一次600bar 均质后得到Dv90 小于87μm。结果表明：批次高剪切混料机能有效满足全豆豆奶工艺；不同温度下的高剪切结果差异十分明显，高温状态下纤维软化更容易被破碎，呈现的粒径分布更集中在低粒径区域；对于高剪切的应用，不同的剪切通过次数也会呈现出不同的粒径状态分布，达到设定剪切次数后粒径不再有降低的趋势；定子外部结构对最终结果没有明显的影响，定-转子的结合及定子孔槽对测试结果有一定的关联性。

关键词：高剪切；全豆豆奶；湿法细磨；粒径分布

Application of Batch High Shear Wacuum Mixer in Whole Soybean Milk Processing

YI Yu

（Tetra Pak Trading Shanghai Co.，Ltd，Shanghai 200126，China）

Abstract: To achieve zero addition of soybean milk with no beany smell and 100% utilization of soybean protein，peeled dry beans were used as raw materials. After rough grinding and enzyme inactivation by according to the ratioof water to 1∶6（w/w），all soybean residue slurry was added into batch rotor-stator high shear vacuum mixer for finegrinding to achieve a sufficiently delicate taste. The particle size distribution Dv90 of whole soybean milk slurry wasmeasured less than 160μm after continuous heat preservation and high shearing under micro negative pressure for aperiod. After 600 bar homogenization，Dv90 is less than 87μm. The results showed that Batch high shear mixer caneffectively meet the whole bean milk process. The difference of high shear results between the two temperatures isobvious. Under high temperature，the fiber softening is easier to be broken，and the particle size distribution is moreconcentrated in the smaller particle size region. For the application of high shearing，different shear passes will alsoshow different particle size distribution，and the particle size will no longer decrease after reaching the setup shearpasses；The external structure of stator has no obvious influence on the results，the combination of rotor-stator andstator slots have a certain correlation with the test results.

Key words: high shearing；whole bean milk；wet fine grinding；particle size distribution

中图分类号：TS278       文献标志码：A       文章编号：1007-7871（2022）05-0045-04

2022，Vol.25，No.5