Table 1.

Identification and quantification of polyphenolic compounds in PPE by HPLC analysis

Name of the Phenolic Standard	Result (mg/100 g dry extract)
1. Gallic acid	Not detected
2. 3,4 dihydroxy benzoic acid	Not detected
3. Catechin hydrate	157.783
4. Catechol	19.817
5. (−) Epicatechin	66.920
6. Caffeic acid	9.998
7. Vanillic acid	93.534
8. Syringic acid	88.742
9. Rutin hydrate	11.572
10. p-coumaric acid	94.678
11. Trans-Ferulic acid	13.098
12. Rosmarinic acid	Not detected
13. Myricetin	Not detected
14. Quercetin	43.852
15. Trans-Cinnamic acid	Not detected
16. Kaempferol	Not detected