Testing Milk And Its Products; a Manual for Dairy Students, Creamery, And Cheese Factory Operators, Food Chemists, And Dairy Farmers
The book Testing Milk And Its Products; a Manual for Dairy Students, Creamery, And Cheese Factory Operators, Food Chemists, And Dairy Farmers was written by author Woll, Fritz Wilhelm, 1865- [from Old Catalog] Joint Author Here you can read free online of Testing Milk And Its Products; a Manual for Dairy Students, Creamery, And Cheese Factory Operators, Food Chemists, And Dairy Farmers book, rate and share your impressions in comments. If you don't know what to write, just answer the question: Why is Testing Milk And Its Products; a Manual for Dairy Students, Creamery, And Cheese Factory Operators, Food Chemists, And Dairy Farmers a good or bad book?
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The tubes are dried at 100" C. in a steam oven, until no further loss in weight takes place, and are then cooled and weighed. The loss in weight shows the per cent, of water present. 267. b. Fat. The tubes are placed in Caldwell ex- tractors and extracted for four hours with anhydrous ether ; the ether is then distilled off, and the flasks dried in the steam bath and weighed, the increase in weight giving the fat in the sample of butter weighed out. 268. c. Casein. 10 grams of butter are weighe...d into a small beaker provided with a lip, and treated twice with about 50 cc. of gasoline each time; the solution is filtered off, and the residue transferred to a filter and dried; its nitrogen content is then determined by the Kjeldahl method (255). The nitrogen in the fi'ter and 232 Testing Milk and lis FrocHois. the chemicals used is determined by blank trials and deducted. The nitrogen multiplied by 6.25 gives the casein in the butter. 269. d. Ash. (1) 10 grams of butter are weighed into a porcelain dish and treated twice with gasoline, as in the preceding determination; the solution is filtered through an ash-free Cquantitative) filter, and the filter when dry is transferred to the dish.
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