Studies on enzyme action. XVIII.—Enzymes of the emulsin type. (III) Linase and other enzymes in linaceæ

Abstract

In No. XIII of these studies, communicated to the Society early in 1910, a long series of observations was recorded from which the conclusion was deduced that the glucoside extracted from the seeds of the wild variety of Phaseolus lunatus and the enzyme associated with the glucoside both belong to the β -series, a conclusion not in harmony with that arrived at previously by Dunstan, Henry and Auld. The glucoside termed by Dunstan and Henry Phaseolunatin was first isolated from young flax plants in 1891 by Jorissen and Hairs, by whom it was named Linamarin . Jorissen had previously found that “emulsin” had no action on the cyanophoric constituent of flax, though the glucoside was readily attacked by the enzyme occurring in the seed.