2.4. In¯uence of extracts on some physiochemical
properties milk Extracts were added at 0.4% (w/v) to standard milk and at 0.8% (w/v) to concentrated milk and stirred for 30 min. The heat stability, rennet coagulation time, alcohol stability and calcium ion concentration of samples of control and experimental milks were determined as methods described by O'Connell et al. (1998)