. 2021 Sep 9;11:17876. doi: 10.1038/s41598-021-95769-y

Table 2.

Amounts (mg/g sample) of selected phenolic compounds (EGC epigallocatechin; PCA protocatechuic acid; C catechin hydrate; ECG epicatechin gallate; EGCG epigallocatechin gallate; QUE quercetin) in S.cristaefolium extracts.

Phenolic compound	Concentration (mg/g)
Phenolic compound	> 4000 µm	> 250 µm	> 125 µm	> 45 µm	< 45 µm
EGC	3.30 ± 0.26^a	11.48 ± 0.4^b	13.79 ± 0.68^c	19.73 ± 0.76^d	20.04 ± 0.5^e
PCA	0.010 ± 0.003^a	0.014 ± 0.004^a	0.018 ± 0.004^a	0.020 ± 0.005^a	0.023 ± 0.002^a
C	0.069 ± 0.003^a	0.074 ± 0.006^a	0.082 ± 0.006^a	0.087 ± 0.005^a	0.091 ± 0.004^a
ECG	4.70 ± 0.17^a	12.01 ± 0.48^b	13. 99 ± 0.58^c	20.67 ± 0.89^d	24.97 ± 0.78^e
EGCG	4.13 ± 0.08^a	6.10 ± 0.57^b	7.33 ± 0.71^c	9.25 ± 0.50^d	10.67 ± 0.21^e
QUE	0.51 ± 0.04^a	0.57 ± 0.03^a	0.61 ± 0.09^a	0.84 ± 0.11^a	1.20 ± 0.08^a

Different letters indicating significant difference between columns (p < 0.05).