Table 2.

Total amount of ETs, EA derivatives, and GA in PPE.

Compounds	PPE (mg/g)
Punicalagin	182.31 ± 0.75
Punicalin	61.95 ± 2.34
Granatin B	61.04 ± 7.25
Causarinin	20.79 ± 2.52
Galloyl-HHDP-hexoside	45.4 ± 1.53
Lagerstannin B	<LOD
Pedunculagin I	50.25 ± 0.98
Pedunculagin II	28.04 ± 0.42
Ellagitannins	449.78 ± 8.31
Ellagic acid	10.71 ± 1.17
Ellagic acid hexoside	3 ± 0.13
Ellagic acid pentoside	1.88 ± 0.09
Ellagic acid deoxyhexoside	1.87 ± 0.11
Ellagic acid dihexoside	<LOD
Ellagic acid derivatives	17.45 ± 1.49
Gallic acid	0.98 ± 0.11
Total*	468.2 ± 9.69

The amount of each compound in the extract was determined using PC, EA, and GA as reference standards for ETs, EAs, and GA, respectively. Punicalin, granatin B, causarinin, galloyl-HHDP-hexoside, pedunculagin I (bis-HHDP-hex), pedunculagin II (digalloyl-HHDP-hex) were expressed as equivalents of PC. EA hexoside, EA pentoside, EA deoxyhexoside were expressed as equivalents of EA. GA was quantified with the correspondent standard. Total polyphenols were calculated as sum of all the compounds retrieved. The values are expressed as mg/g of dry powder (mean values ± standard deviation). EA, ellagic acid derivatives; ET, ellagitannin; GA, gallic acid; PC, punicalagin; PPE, pomegranate peels extract.

^*Expressed as sum of mg of punicalagin equiv.

+ mg of ellagic acid equiv. + mg of gallic acid equiv.; <LOD, lower than the limit of detection.