Table II.

Values of SR from H1 to H6 and C Matrices at 2, 4, 8 and 24 h in Different Media

Batch	2 h	4 h	8 h	24 h
SR in demineralised water
H1	184.2 ± 4.2	251.9 ± 4.7	336.1 ± 3.2	485.8 ± 9.4
H2	149.3 ± 2.2	205.2 ± 2.5	268.3 ± 1.4	350.2 ± 3.4
H3	133.6 ± 2.9	176.6 ± 3.1	219.9 ± 1.7	280.0 ± 1.6
H4	78.1 ± 1.1	105.3 ± 1.2	117.2 ± 1.8	169.6 ± 8.4
H5	75.1 ± 0.9	90.0 ± 0.8	90.4 ± 1.5	99.5 ± 5.0
H6	57.9 ± 1.3	65.1 ± 0.9	52.1 ± 2.2	37.3 ± 4.1
C	21.0 ± 3.5	27.0 ± 9.6	21.3 ± 3.4	19.2 ± 2.4
SR in progressive pH medium
H1	177.5 ± 1.6	240.9 ± 9.4	314.2 ± 8.2	482.7 ± 4.3
H2	152.1 ± 3.2	202.7 ± 1.8	262.7 ± 3.6	368.5 ± 5.6
H3	136.4 ± 1.3	174.4 ± 3.3	217.3 ± 1.2	282.4 ± 4.8
H4	79.8 ± 1.6	101.1 ± 1.4	112.3 ± 0.8	183.2 ± 3.0
H5	71.1 ± 1.1	80.3 ± 1.5	82.6 ± 3.4	72.5 ± 3.4
H6	44.1 ± 1.2	49.1 ± 1.9	44.0 ± 2.0	21.9 ± 4.7
C	−8.6 ± 0.6	−18.5 ± 2.2	−44.7 ± 5.6	−46.9 ± 5.5
SR in SGF
H1	174.9 ± 1.3	239.6 ± 8.7	314.5 ± 5.8	463.9 ± 5.2
H2	159.5 ± 1.8	217.3 ± 3.0	280.8 ± 7.0	357.3 ± 27
H3	138.3 ± 2.5	180.4 ± 1.2	226.7 ± 0.8	189.9 ± 37
H4	83.2 ± 2.2	109.1 ± 4.5	122.3 ± 9.8	−33.8 ± 5.3
H5	74.9 ± 0.8	72.6 ± 3.9	−36.5 ± 9.5	–
H6	53.6 ± 4.1	25.4 ± 2.8	–	–
C	−24.4 ± 3.4	−61.8 ± 4.4	−96.8 ± 0.6	−98.1 ± 1.8
SR in SIF
H1	169.4 ± 6.4	237.6 ± 12	321.1 ± 8.6	509.3 ± 13
H2	142.5 ± 0.7	196.5 ± 1.6	252.6 ± 3.0	370.7 ± 8.3
H3	126.7 ± 2.4	167.1 ± 1.0	208.2 ± 2.5	230.4 ± 9.4
H4	76.8 ± 1.2	104.1 ± 1.4	124.1 ± 3.6	115.6 ± 7.5
H5	71.1 ± 0.5	85.9 ± 1.4	89.5 ± 1.4	97.8 ± 3.2
H6	54.7 ± 0.9	60.6 ± 0.9	54.6 ± 0.6	41.6 ± 0.9
C	15.0 ± 1.2	17.3 ± 1.4	12.1 ± 4.5	−4.5 ± 13.1

SR swelling ratio, SGF simulated gastric fluid with pepsin, SIF simulated intestinal fluid with pancreatin