Purification of Enzymes

摘要

1,178,217. Bromelain. CASTLE & COOKE Inc. 21 March, 1968 [14 April, 1967], No. 13649/68. Heading C3H. A process for the production of enzymic materials containing stem bromelain by precipitation from juice expressed from crushed plants of the family Bromeliaceae comprises passing the juice prior to said precipitation in ion-exchange relation with an ion-exchange resin having one or more exchange cations selected from NH 4 +, Na+ and K+, thereby replacing cations naturally present in said juice with said exchange cations and increasing the specific activity of the precipitated enzymic material.