COMPUTERIZED VISCOMETRIC METHOD FOR STUDYING RENNET COAGULUATION OF MILK

A viscometer (Rheomat-30) was computerised by connecting a microcomputer (Apple II plus) through the interface: analog/digital converter (MID 1612M1). The maximal speed of the viscometer's signal readings was up to 20 records per second. This equipment was used to follow the apparent viscosity changes during the rennet coaguluation of milk. An equation describing the evolution of the viscosity as a function of time has been drawn. It seems to be sufficient to know the initial and maximal viscosity level and the time coordinates of two points: maximum and 0.6 of the viscosity amplitude, to be able to reproduce the viscosity versus time curve.