Repository: UIHistories Project: Board of Trustees Minutes - 1914 [PAGE 254]

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252

UNIVEESITY OF ILLINOIS.

[June 10,

acid made up the following percentage of the total ash— ?" "The same authors have also shown that the water-soluble phosphorus of aqueous extracts of flesh is not in combination with the coagul.ated protein, with the proteoses, or with the peptones, but is due to non-protein bodies. (Jour. Amer. Chem. Soc, 1906, 28, p. 56.)" "In only four brands of extracts are Emmett and Grindley's figures satisfied." "Topelius and Pommerehue, Worner, and Grindley and Woods have shown that fresh meat gave no traces of creatinin." "Grindley and Woods also showed that by the evaporation of an equous extract from the flesh upon the water-bath, in the presence of its natural acidity, creatin was changed to creatinin. It may be, therefore, that the relative amounts of these bases present may give some evidence as to the freshness of the extracts, as well as to the kind of meat employed in their manufacture, Jour. Biol. Chem., 1907, Vol. 2, p. 309." "Emmett and Grindley have studied the alleged defects in Folin's method and find, while on the whole Hebner's Criticisms are not fully sustained by the facts, that in the determination of creatin, at least, certain modifications are advisable; namely, an increase in the quantities of picric acid and alkali used, Jour. Biol. Chem., 1907, Vol. 3, p. 491." "We have also made a few tests of the modification suggested by Emmett and Grindley and find the slightly higher results are in general obtained thereby." "A comparison of the results secured by our modification and that of Emmett and Grindley is shown in the following tabulation —." Professor Harry Snyder, of the University of Minnesota and the Minn. Exp. Station, in his book on Human Nutrition, pp. 108-111, quotes from five of the publications of this Research Laboratory. The same author in his book "Chemistry of Plant and Animal Life," pp. 388-389, quotes from the research work of this laboratory. Professor E. H. Bailey in his book Sanitary and Applied Chemistry refers to a number of the publications of this,laboratory. Dr. P. C. Benedict, of the Carnegie Nutrition Investigation Laboratory, refers to the fact that Grindley and Woods (Jour, of Biol. Chem., 19.07, 11, p. 309) found that there were present in the beef extract twice as much creatin as creatinin. They also refer to the work of this Research Laboratory as follows: "Grindley and Woods have found that when meat juice, containing practically no creatinin, is allowed to stand in the presence of picric acid and sodium hydroxide, a red color develops indicating a conversion of creatin to creatinin." Director L. H. Bailey, of the New York Agricultural Experiment Station, in the third volume of The Cyclopedia of American Agriculture, Chapter 9, pp. 263270, in the article on meat, "Its Nutritive Value, Selection, and Preparation," quotes extensively from the researches of this laboratory. Of the 7% pages, 1/6 is given to abstracts or direct, quotations from the publications of this Research Laboratory, and of the list of literature at the end of the article, one-third are publications from this laboratory. Dr. Otto Foline, of Harvard University Medical School, in his article in the Journal of American Chemical Society, entitled "The Determination of Total Sulphur in Urine," refers repeatedly to the research work of this laboratory. Dr. H. P. Armsby, Director, Institute of Animal Nutrition, Pennsylvania State College, Expert in Animal Nutrition, Bureau of Animal Industry, in Bull. 108, Bureau of Animal Industry, U. S. Dept. of Agric, quotes as follows: "Lean cuts of meats, however, may contain much less fat than is indicated by the above statement. Thus Grindley and Emmett (U. S. Dept. of Agr., Office of Experiment Stations, Bull. 162) analyzed seven samples of beef round from which the visible fat had been removed, the average of the seven analyses being as follows-—• ." Dr. W. H. Jordan, Director of the New York Experiment Station, in an article upon the Effects of Phosphorus Compounds with Milch Cows in American Jour, of Physiology, Vol. 16, p. 309 (1906), quotes as follows: "Emmett and Grindley (Jour. Amer. Chem. Soc, 1906, Vol. 28, p. 5), in their researches on the chemistry of the flesh of steers, have made a study of its phosphorus content in various forms. Their results show that the total phosphorus for such, flesh soluble In cold water ranged from 0.146 per cent to 0.257 per cent, averaging approximately 0.2 per cent. Of this 0.12 per cent consists of soluble inorganic phosphorus bodies, chiefly potassium phosphates, only about 0.08 per cent being in the form of organic phosphorus compounds." Annual Reports of the Progress of Chemistry issued by the London Chemical Society have the following to say regarding the work of the Research Laboratory: "Food chemists will also read with considerable interest a paper by Grindley (Jour. Amer. Chem. Soc, 26, 1086, 1904) which contains a very considerable number of analyses made with the object of elucidating the chemistry of the proteids and other nitrogenous constituents existing in meats." Chem. Soc. (Lon.), Annual Report, Vol. 1, p. 165, 1905. "Emmett and Grindley (Jour. Amer, Chem. Soc, .27, p. 263, 1905) have shown that the lard obtained from hogs fed on cottonseed meal responds to a number of general tests for vegetable oils, and gives the more important special reactions of cottonseed oil. They also isolated from such lards crystals resembling those of phylosterol." Chem. Soc. (Lon.), Annual Report, Vol. 2, p. 205, (1906). "A. D. Emmett and H. S. Grindley (Jour. Amer. Chem. Soc,. Vol. 28, p. 25, 1906) have similarly examined the phosphorus-containing substances in flesh, and find that in beef 75 per cent of the total phosphorus is soluble in cold water, and that one-fourth of this consists of Organic compounds." Chem. Soc. (Lon.), Annual Report, Vol. 3, p. 274 (1906). "The results obtained by other investigators of colorimetric study of meat, extracts for creatin and creatinin were subsequently extended by Grindley and. Woods. (Jour, of Biol. Chem., 2, p. 309, 1907)." Chem. Soc (Lon.), Annual Report, Vol. 4, p. 218 (1907). "Grindley, Woods, and Emmett (Jour. Biol. Chem., Vol. 3, p. 491, 1907), .using Polin's method, have made accurate estimations of creatin and creatinin in meat