Soybean milk powder which does not cause abdominal distension and preparation method thereof

The invention discloses soybean milk powder which does not cause abdominal distension and a preparation method thereof. According to the method provided by the invention, firstly, soybean milk and malt extract are prepared into a fermentation culture medium, microbes which can be used in the food field are used for fermentation, and raffinose and stachyose in the soybean milk are decomposed; then,the processing steps of filtering, concentrating, sweetening agent adding, sterilizing, homogenizing, drying and the like are executed to prepare the fermented liquid into soybean milk powder. The soybean milk powder prepared by the preparation method does not contain raffinose and stachyose, and the soybean milk made by brewing with water has strong bean flavor, does not cause abdominal distension symptoms after drinking and has a good application prospect. 本发明公开了一种不致腹胀的豆浆粉及其制作方法。本发明提供的方法首先将豆浆与麦芽提取物配制成发酵培养基，利用可用于食品领域的微生物进行发酵，分解豆浆中的棉子糖和水苏糖；然后，经过滤、浓缩、添加甜味剂、灭菌、均质、干燥等处理步骤，将发酵液制成豆浆粉。本发明制得的豆浆粉不含棉子糖和水苏糖，用水冲调所得的豆浆具有浓郁的豆香风味，