| 摘要 |
A vitamin-enriched foodstuff comprises milled cereal grain, e.g. rice or maize grits, impregnated with riboflavin or a riboflavin-active substance and coated with an edible water-repellant protective coating containing titanium dioxide in suspension. The grain may be steeped in a solution of riboflavin or riboflavin-active substance in dilute sulphuric acid, dried and coated with a solution of zein dissolved in ethanol or isopentanol, each 100 ml. of which contains 15 to 60 g. of titanium dioxide. The coating mixture may also contain abeitic stearic, palmitic and oleic acids. The steeping solution may contain water-soluble vitamins such as thiamin, niacin, pantothenic acid, pyridoxin, vitamin B12, ascorbic acid, biotin and folic acid. The coated grain may be dusted with talc, e.g. containing a compound of phosphorus, sodium, potassium, calcium, magnesium, copper, manganese, chromium or iron, preferably iron pyrophosphate, and dried. Specification 646,747 [Group I] is referred to. |
