The technological aspects of the manufacture of soya milk were studied, with special attention to pretreatment of beans (soaking and various methods of grinding), extraction (influence of extraction rate, pH, temperature, time and method of mixing) and the separation of the milk.Preservation of soya milk by pasteurization or sterilization was briefly studied.The concentration of soya milk by evaporation was difficult. The heat stability of the milk was influenced by the way of heating before evaporation. By choosing working conditions carefully a fairly high dry matter content could be achieved. A few experiments were made on the manufacture of soya curd and soya yoghurt. Both products had promising applications.
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