Evening Republican, Volume 59, Number 97, Rensselaer, Jasper County, 15 May 1917 — COW IS A REAL ASSET [ARTICLE]

COW IS A REAL ASSET

Goes Through Her Span of Years Yielding Her Full Quota • of Milk. With no apparent effort the cow goes through her span of years yielding her full quota of milk and looking always as if she could Impart great secrets to the world If she had the gift of speech. She is an industrial asset, not a mere purveyor of baby food. It has been proved that casein, which forms over 3 per cent of the total weight of cow’s milk, is an Important commercial product, and may be profitably employed in the manufacture of glue, combs, buttons, linoleum, hairpins, toys, paints and even shoe polish. In the preparation of casein for commercial purposes, about" 700 gallons of skimmed milk are put into a great vat and heated to about 135 degrees Fahrenheit, says Popular Science Monthly. Then very dilute sulphuric acid Is added to precipitate the casein or curd. The whey Is drawn off and the curd Is drained and cut Into chunks, after which streams of cold water are played on it to wash out the acid. The curd is then dried with rotary fans and ground into powder, In which form It Is placed on the market. One hundred pounds of skimmed milk will yield about 3% pounds of casein powder.