Practical physiological chemistry; a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . Fig. 32.—LEVo-a-PROLiNE. protamines. The maximum yield reported is P^^ cent obtainedby Osborne and Clapp from the hydrolysis of hordein. Fischer andBoehner^ have obtained per cent from the hydrolysis of Fig. ^s.—Copper Salt of from a micro-photograph made by Prof. E. T. Reichert, of the University of Pennsylvania. The crystalline form of levo-a-proline is shown in Fig. 32 and thecopper salt of prohne is represe
Practical physiological chemistry; a book designed for use in courses in practical physiological chemistry in schools of medicine and of science . Fig. 32.—LEVo-a-PROLiNE. protamines. The maximum yield reported is P^^ cent obtainedby Osborne and Clapp from the hydrolysis of hordein. Fischer andBoehner^ have obtained per cent from the hydrolysis of Fig. ^s.—Copper Salt of from a micro-photograph made by Prof. E. T. Reichert, of the University of Pennsylvania. The crystalline form of levo-a-proline is shown in Fig. 32 and thecopper salt of prohne is represented by a micro-photograph in Fig. 7,2).The crystals of the copper salt have a deep blue color, but when they^ Fischer and Boehner: Zeit. phys. chem., 65, 118, 1910. PROTEINS 85 lose their water of crystallization they assume a characteristic violetcolor. Oxyproline, C5H9NO3.—Oxyproline was discovered by has as yet been obtained from only a few proteins, but this may bedue to the fact that only a few have been examined for its position of the hydroxyl group has not yet been established. Diaminotrihydroxydodecanoic Acid, C12H26N2O6.—This amino acidwas discovered by Fischer and Abderhalden as a product of the hydro-lysis of casein. It has thus far been obtained from no other is levo-rotatory and its constitution has not b
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