| 摘要 |
The flavour of beverages may be improved by adding a copolymer of (a) L- lysine or L- lysine hydrochloride and (b) L- glutamic acid or L- aspartic acid or a sodium salt of either. In Example 1 a polymer of L- lysine hydrochloride and monosodium glutamate is added to synthetic beer and sak</>ae in quantities down to 0.1%.ALSO:Copolypeptides are prepared by heating (a) L-lysine or L-lysine hydrochloride with (b) L-glutamic acid, L-aspartic acid or a sodium salt of either acid in water under reflux at 80-160 DEG C. 5-20% of water may be used. The product may be purified by dialysis and used to flavour food or beverages, e.g. synthetic beer, sak</>ae, and cake, and to treat textiles, e.g. wool or cotton. In Example 2, the copolypeptide is mixed with sodium-5-mosinate or 5-guanylate.ALSO:The water retention of cakes and the flavour of fermented beverages can be improved by inclusion of a copolymer of (a) L-lysine or L-lysine hydrochloride and (b) L-glutamic or L-aspartic acid or a sodium salt of either. In Example 4 a polymer of L-lysine hydrochloride and L-glutamic acid is used in the manufacture of kastera, a cake made from flour, butter and sugar, and cup cakes.ALSO:Strength and antistatic properties may be imparted to textiles by treatment with a copolymer of (a) L-lysine or L-lysine hydrochloride and (b) L-glutaric or L-aspartic acid or a sodium salt of either. In Example 3 0.1% of a polypeptide of L-lysine and L-aspartic acid is dissolved in water and applied to wool, cotton and Tetron (Registered Trade Mark) textiles. In Example 6 a copolymer of L-lysine hydrochloride and monosodium L-aspartate is applied to wool fibres during spinning. |
