TABLE 2.

HePS production by thermophilic LAB strains in milk and characterization of their polymers

Strain	Source	Cell count (CFU ml−1)	Final pH	PDM (mg liter−1)	R	CPS	MM (kDa)		Monomer ratioa					Groupb
							High	Low	Glc	Gal	Rha	GlcN	GalN
L. delbrueckii subsp. bulgaricus
CRL142	Yoghurt	1.0 × 107	3.94	21	−	+	None	946		1.0				IX
CRL406	Yoghurt	3.8 × 108	3.95	83	−	−	None	642		1.0				IX
CRL553	Yoghurt	4.1 × 108	3.83	47	−	−	None	324	1.0	6.0				I
CRL563	Yoghurt	1.1 × 109	4.02	105	−	+	None	270	1.0	3.5				I
CRL852	Yoghurt	1.6 × 107	3.90	150	−	−	None	10	1.5	3.0	1.0			IV
CRL861	Yoghurt	1.4 × 109	4.56	<10	+	+	None	203	1.0	1.5				I
CRL863	Yoghurt	3.4 × 108	4.63	10	+	−	2,203	None	1.0	1.5				I
CRL865	Yoghurt	5.0 × 106	3.85	120	−	−	None	15	1.5	2.0	1.0			IV
CRL870	Yoghurt	4.0 × 107	4.19	126	−	−	>5,000	None	1.0	2.0				I
CRL874	Yoghurt	8.7 × 108	3.97	24	−	+	None	8	1.5	2.0	1.0			IV
L. debrueckii subsp. lactis CRL564	Yoghurt	9.6 × 108	3.95	55	+	−	None	314	1.0	1.5				I
L. helveticus CRL1176		3.9 × 109	4.38	41	+	−	1,800	None	2.0	1.0				I
S. thermophilus
CRL419	Cheese	1.0 × 107	4.99	<10	−	−	None	186	2.0	1.0		1.0		V
CRL638	Yoghurt	1.3 × 109	4.60	118	+	−	1,190	None	1.0	2.0			2.0	III
CRL804	Yoghurt	2.1 × 108	4.50	166	−	−	None	95		2.5	1.0			II
CRL810	Yoghurt	4.1 × 108	4.30	56	−	−	None	123	1.0	2.5		1.0	2.0	VII
CRL815	Yoghurt	5.0 × 108	4.85	17	−	+	None	39		4.0	1.0	1.0	1.0	VIII
CRL817	Yoghurt	3.9 × 108	4.74	53	−	−	None	34	1.0	2.0		1.0	1.5	VII
CRL821	Yoghurt	3.0 × 108	4.69	<10	−	+	None	11	2.5	2.5		1.0	1.5	VII
CRL1190	Yoghurt	1.6 × 107	4.50	39	+	+	1,782	None	1.0	1.5				I

^aRelative to other monomers in compound (on a molar basis).

^bClassified according to the monomers present in the HePS.