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acetic activity alanine albumin alcohol amino-acids amount animal athletes average barium basal metabolism Benedict benzoic acid body surface body weight boiling calcium Calculated calories carbohydrate carbon dioxide casein cent per cent Chem chloride color comparison compound concentration containing determined dextrose diet dilute dissolved enzyme ether experiments extract filtered filtrate gliadin glucose grams of glucose Group heat production hippuric acid hydrazine hydrochloric acid hydrolysis hydroxide increase individuals ingestion inorganic inosite insoluble iodide iodine Jour Journal Laboratory liver juice melting metabolism meter of body method methyl milk mixture muscular nitrogen non-athletes normal obtained oxidation oxygen oxyhemoglobin phlorhizin phosphate phosphoric acid phosphorus Physiol picric acid precipitate protein quantity reaction Received for publication recrystallized reductase respiration respiratory quotient salt serum sodium soluble solution spirometer square meter substance gave sulphuric acid Table temperature tion tube uric acid urine vegetarians women
Page 379 - Laboratory of the Connecticut Agricultural Experiment Station and the Sheffield Laboratory of Physiological Chemistry in Yale University, New Haven.) (Received for publication, January 30, 1915.) When young albino rats are fed on a ration composed of isolated and purified protein, a carbohydrate like starch, inorganic salts furnished in the form of what we have termed
Page 379 - 1 The expenses of this investigation were shared by the Connecticut Agricultural Experiment Station and the Carnegie Institution of Washington, DC 1 TB Osborne and LB Mendel: Feeding Experiments with Isolated Food-Substances, Carnegie Institution of Washington, Publication No.
Page 68 - added, the tube is again heated to boiling to dissolve the precipitate, the contents of the tube are transferred quantitatively to a 10 cc. 51 volumetric flask, cooled, made up to the mark, shaken, and then filtered through cotton into the colorimeter chamber. The color is compared at once with that obtained from 0.64 mgm. of dextrose, 5 cc.
Page 351 - (From the Laboratory of the Connecticut Agricultural Experiment Station and the Sheffield Laboratory of Physiological Chemistry in Yale University, New Haven.) (Received for publication, January 30, 1915.) In earlier communications
Page 621 - solution and the mixture is shaken and allowed to stand for a few minutes. The clear solution is acidified by the addition of 20 cc. of normal acetic acid and the whole is diluted up to the liter mark with water. The solution should remain perfectly clear
Page 359 - Protein am. 93.7 108.1 99.7 94.1 80.3 55.1 54.0 47.9 50.1 35.2 27.6 23.8 20.2 mals with excess of food, and have noted the amount eaten for considerable periods, will realize how well adjusted, under normal circumstances, is the instinctive appetite to the physiological needs."
Page 68 - aliquots are measured out into large Jena test-tubes for duplicate determinations. Two cc. of saturated picric acid solution and exactly 1 cc. of 10 per cent sodium carbonate are added (as well as two glass beads and two or three drops of mineral oil), and the contents of the flask are evaporated rapidly over a direct flame until precipitation occurs. About 3 cc. of water
Page 502 - is the result of the decomposition of the proteins with sulphuric acid. The iodothyrin so obtained is about 4 per cent of the total weight of the dried thyroid. It has some physiologic activity, but the original claim of Baumann that it is the physiologically active principle of the thyroid has long since been disproved. Other decomposition products have been obtained by
Page 505 - solution is precipitated by copper hydroxide, and to a large extent by barium, calcium, and magnesium salts. It is almost entirely soluble in ethyl acetate, but by partial extraction with this solvent it is possible to separate A into two fractions. In the ethyl acetate soluble portion of A, the percentage of iodine