Purification of a membrane-bound trypsin-like enzyme from the gut of the velvetbean caterpillar (Anticarsia gemmatalis Hübner) - doi: 10.4025/actascibiolsci.v34i3.9239. Acta Sci. Biol. Sci. 2012;34(3):263-270. doi:10.4025/actascibiolsci.v34i3.9239