shrink proofing of wool, etc. Purification of papain
from papaya latex has traditionally been achieved by precipitation
methods [4–6], however, the purified enzyme still remains
contaminated with other proteases. An alternative purification
strategy has involved the use of various chromatographic techniques
including ion exchange, covalent, or affinity chromatography
[1,7–10], but here the initial processing of the latex is
essential before samples can be applied on a chromatography
column.