The new Pepsin Digestibility Rotator from Glas-Col offers variable speed with end-over-end mixing action for a gentle slosh to rapid agitation. Driven by a continuous-duty motor, it can stand up ...

1–5 The availability of an indirect measure of gastric secretion by the blood pepsin method 6,7 offered an excellent opportunity for study of the effect of pregnancy on gastric secretion.

In the following experiments, cytochrome c was modified by splitting off a great part of the protein portion of the molecule with pepsin. The resulting substance was then isolated and studied.