Laboratory Studies of Rennin.

The Effect of Rennin upon Casein

The properties of the paracasein and casein preparations studied are compared in Table VI. See PDF for Structure I. Casein retains its characteristic solubility in NaOH: (1) after being exposed to a high degree of alkalinity during its preparation, (2) when recovered from partially hydrolyzed solutions in NaOH, and (3) after being kept for a prolonged time at the isoelectric point at 5 degrees ...

The Action of Rennin on Casein

In order to determine if the change from casein to paracasein results in the cleavage of any of the elements contained in the casein molecule, it is imperative that pure casein be used as a standard of comparison, and that the rennin activity be positively differentiated from any further proteolyt,ic activity of the enzyme under consideration; for it is quite evident that “Rennin action is prob...

The purification and crystallization of rennin.

The Action of Rennin on Casein

The changes produced by the action of rennin in milk and solutions of casein have been the subject of many investigations. Fremy’ was probably the first to give an explanation of this phenomenon. He believed the power to coagulate milk possessed by an extract of the mucous lining of a calf’s stomach to be due to the presence of an enzyme which converted some of the lactose of the milk into lact...

Laboratory Studies of Stardust