| 摘要 |
To obtain a foamable product, a solution or suspension of protein hydrolysed other than by means of an alkaline earth hydroxide, and containing both polypeptides and unhydrolyzed protein, is mixed with a calcium compound capable of producing calcium ions in the solution. Calcium hydroxide, oxide or carbonate may be added after hydrolysis with acid, or a water-soluble calcium salt after hydrolysis with an alkali other than an alkaline earth hydroxide. According to an example, a mixture of soya bean protein, water and a pepsin preparation is made of pH 2-3 by the addition of hydrochloric acid, the mixture is maintained at 35 DEG C. for some days, calcium hydroxide to produce pH 8 is added, the liquid is stirred for some hours, and is then spray-dried. Specifications 670,413 and 670,449 are referred to. |
