Gallic acid
(+)-Catechin
(-)-Epicatechin
Procyanidin B1
Procyanidin B2
(-)-Epicatechin gallate
Analisi
t
R
(min)
Area (mAU)
t
R
(min)
Area (mAU)
t
R
(min)
Area (mAU)
t
R
(min)
Area (mAU)
t
R
(min)
Area (mAU)
t
R
(min)
Area (mAU)
1
4.27
6654.7
13.17
11364.9
19-25
11728.6
9.23
2939.3
16.32
4678.9
38.21
15276.9
2
4.24
5215.8
13.25
10810.2
19.31
11891.4
9.07
2520.3
16.53
4530.2
38.34
15273.7
3
4.24
5004.6
13.36
11192.5
19.41
11818.9
9.41
2315.7
16.51
4149.9
38.40
15061.1
4
4.24
4945.6
13.55
10796.4
19.65
11821.6
9.36
2934.3
16.24
4914.6
37.28
13915.2
5
4.24
4972.6
13.36
10755.8
19.81
11927.7
9.04
2615.9
16.72
3743
38.66
14200.7
Mean
4.246
5358.66
13.338
10983.96
19.486
11837.64
9.222
2665.1
16.46
4403.3
19.48
14745.5
St.dev.
0.01
732.32
0.14
276.60
0.24
76.65
0.17
270.70
0.19
461.98
0.53
641.71
%CV
0.32
13.67
1.07
2.52
1.22
0.65
1.80
10.16
1.15
10.49
2.71
4.35
Table 1:
Reproducibility of gallic acid, (+)-catechin, (-)-epicatechin, procyanidin B1, B2 and (-)-epicatechin gallate
