Abstract: Coloring material for the food industry constituted by a powdery mixture with more than about 85%, and preferably with more than 90% of dry matter formed essentially from about one-third of starch and from about two-thirds proteins, and obtained from the by-product, rich in proteins, of the corn starch factory generally denoted by the expression "protein milk" by a drying whose conditions are selected so that said powdery mixture responds to given conditions of granulometry, to the test conditions of tasting in butter and to the maximum permitted loss test to light reflexion as well as, preferably, to the conditions of the decantation test and of the unctuosity test.

Abstract: Process for depolymerizing starch by irradiation in which granular starch, whose water content is at the most about 23%, is subjected, in the presence of an acid which is neutralized at the end of the treatment, to a dose of radiation which is a function of the nature and of the quantity of the acid used.

Abstract: The invention relates to a feeding product for bees.The product according to the invention is characterized by the fact that it comprises a syrup of maltose obtained by enzymatic hydrolysis of starch and containing a proportion of maltose such that the product does not crystallize, said product being free from substances toxic to bees. The feeding product may also be enriched with an effective amount of maize steeping water or liquor.