deproteinization
noun
de·pro·tein·iza·tion
variants:
or chiefly British deproteinisation \ (ˌ)dē-ˌprō-ˌtē-nə-ˈzā-shən 
, -ˌprōt-ē-ə-nə-
\
, -ˌprōt-ē-ə-nə-
\
Medical Definition of deproteinization
: the process of removing protein