A large number of preparations of dried milk are now obtainable. Some of them are preparations of pure casein; some are derived from separated milk, and contain a little fat and more or less sugar; some are derived from whole milk; and others are in the form of milk powders, composed of milk modified by abstraction of casein or addition of sugar, or both.
Tilia . .
Biogene is a soluble, tasteless, odourless casein, free from starch and sugar. Prideaux's Casumen (2s. per lb.) is a white, flake-like powder, odourless, tasteless, soluble, and miscible with ordinary foods and drinks. The salts consist of phosphates of calcium and potassium 192, and salts of sodium 101. It is free from starch and sugar and keeps indefinitely. It is combined with other foods in the form of arrowroot, chocolate, cocoa, cornflour, biscuits, bread and macaroni. A diabetic milk can be made from it by the addition of water, a weak alkali, and saccharin. Plasmon is almost identical with casumen, practically free from fat and sugar. It is a white, finely granular, odourless, tasteless powder, rendered soluble by the addition of bicarbonate of soda, miscible with ordinary foods and drinks, and useful for rectal feeding. It is combined with other foods in the form of arrowroot, chocolate, cocoa, biscuits, beef, tea, oats, etc. Protene is almost identical with plasmon. Tilia is also practically pure casein, which mixes with water and forms an almost transparent and tasteless solution. It contains 11*97 per cent of nitrogen and 183 per cent of phosphoric anhydride.
1 Analysis given by the makers. 2 Analysis by The Lancet.
Casein is combined with ammonia under the name of Eucasin; with sodium, as Nutrose; with 5 per cent of sodium glycerophosphate, as Sanatogen; and with 20 per cent of albumose, made from egg albumin, as Sanose.
Desiccated whole milk is sold under the names of Glaxo (Nathan and Co.); and Lacvitum (Prideaux) at 1s. to 1s. 3d. per lb. The latter company provide Lacumen, at 5d. to 9d. per lb., the desiccated product of skimmed milk; and another powder made from a milk deprived of half its fat.
Dried casein is a very nutritious food, on a par with cheese made from skimmed milk. It is enormously valuable in that it can be added to other foods, thus improving their protein value. The casein is purin-free, does not clot, and is easily digested and absorbed. It is indicated in all affections in which additional protein is needed, and is useful as a means of giving phosphorus in organic combinations. It is especially valuable in the treatment of acid dyspepsia, for the protein fixes the acid. Protene and plasmon arrowroot are beneficial in the treatment of diarrhoea.
Allenbury No. 1 Food may be classed in this group. It is a dry powder, made from cows' milk from which the excess of casein has been removed and the deficiency in fat and sugar corrected. It is free from starch and is often very useful as a temporary food for infants in the first three months of life.