Table 4. Characteristics of each presentation of papain solution.

Characteristics	Type of presentation
Papain	PAP1	PAP2	PAP3
Presentation	Solution prepared from freeze-dried enzyme. Ready for use after thawing	Preparation of buffer solutions and of aliquots I, II and III. For use, each aliquot is mixed after thawing	Liquid – ready for use
Storage	-80°C	-80°C	+4°C
Preparation time	2 hours	1 hour	-
Validity	5 years	5 years	7 weeks
Equipment required for preparation	Centrifuge, agitator, water bath, freezer -80°C	Agitator, freezer -80°C	-
Costs	200mL=R$ 126,00 10mL=R$ 6,30	400mL=R$ 355,47 10mL=R$ 8,89	10mL=R$ 81,40*

^* Hemocentro de Botucatu procurement data - search in January 2017.