2.2.2 Ultrasonic extraction IGF-1 f

2.2.2 Ultrasonic extraction IGF-1 from antler velvet
residue
A single factor experiment was considered to
study the effect of kind of solvent, the ratio of solvent
to sample (volume/mass), extraction temperature and
time on IGF-1 content of the residue. An open rectangular
ultrasonic cleaner bath (KQ-200KDE 40 kHz,
200 W) with useful volume of 6.0 L (internal dimensions:
30 cm