TABLE 4.

Amounts of HMM, LMM, and total EPS measured in fermented medium of the EPS-producing strain S. thermophilus LY03^a

Carbon source	Amt (mg of PDM liter−1) at the indicated time point in:
	0.42 M glucose			0.28 M glucose + 0.14 M fructose			0.28 M glucose + 0.14 M galactose			0.28 M glucose + 0.07 M lactose
	1	2	3	1	2	3	1	2	3	1	2	3
HMM EPS	0	340	180	0	671	256	433	669	524	556	731	320
	0			598			19	603	500
LMM EPS	79	61	271	75	0	335	133	12	12	124	203	413
	0			0			106	22	13
Total EPS	79	401	451	75	671	591	566	681	536	680	934	733
	0			598			125	625	513

^aS. thermophilus LY03 was grown in batch cultures in MRS broth on glucose and combinations of glucose and lactose, glucose and galactose, and glucose and fructose as carbohydrate sources at 42°C and a constant pH of 6.2. Samples were taken at three time points of the fermentation course, representing the exponential growth phase (point 1), the end of the exponential growth phase (point 2), and the stationary phase (point 3). When two samples were taken in the exponential growth phase (point 1), two values are reported. Each value is always the average of at least three measurements.