| 摘要 |
336,014. Legendre, R. A. Nov. 3, 192S, [Convention date]. Preserving food for animals.-Food for animals consisting of a base such as straw. bran, or oats mixed with molasses is preserved by treating the product to give the moisture contained therein a PH value of over 6, preferably a value between 6 and 11. The treatment consists in mixing with the product, or with one or more of its ingredients before preparation thereof, a salt of a strong base, e.g. sodium or ammonium, and a weak acid, or a free base, or mixtures of such salts and bases, alkaline materials containing calcium being excluded. Ammonia may be used, the food being fed by a screw conveyer through a pipe in the opposite direction to the current of the gas which travels through the pipe in contact with the food. The active substance, e.g. sodium carbonate, may be mixed in powdered form with the food, or added as a solution or suspension in water which may be atomized onto the food. A liquid and a gaseous treatment may simultaneously be obtained by adding in separate solutions, or in a mixed solution, sodium carbonate and ammonium chloride, ammonia gas being evolved. Examples of the proportions of the active substances added to the food are given. |
