After the extraction procedure, the extracts were filtered with
filter paper (12.5 cm diameter and 25 m pore size), by means
of a vacuum pump (Prismatec, 131, Itu, Brazil) and the volumes
were completed to 100 mL (referred as 1% extracts). The pH
of extracts was measured using a pH meter (Quimis, Q-400A,
Diadema, Brazil).