Table 1 Yields of spher ical granule type yogurt made with RSM experimental design

Run number	Process variable1)			Yields of granules (%)
	FR	AP	PT
	1	0.5	2		50	74.27
2	0.5	2	70	65.29
3	0.5	3	50	72.84
4	0.5	3	70	62.95
5	0.7	2	50	58.67
6	0.7	2	70	59.02
7	0.7	3	50	62.3
8	0.7	3	70	60.69
9	0.6	2.5	60	82.91
10	0.4	2.5	60	72.51
11	0.8	2.5	60	74.33
12	0.6	1.5	60	56.65
13	0.6	3.5	60	76.41
14	0.6	2.5	40	54.17
15	0.6	2.5	80	56.43

FR means feeding rate (mL/min), AP means atomization air pressure (kPa), PT means product temperature (℃).