Table 2 Geographical and extraction solvent of propolis effect on the availability of polyphenol compounds.
Geographical origin | Extraction solvent | Number of polyphenol compound | Main polyphenol compound | Reference |
|---|---|---|---|---|
Egypt | Ethanol | 18 | Hesperetin, chlorogenic acid, caffeic acid, daidzein and apigenin (66.59 µg/mL) | Current study |
China | Ethanol/water | 20 | Pinobanksin 3-O-acetate, pinocembrin, chrysin, galangin, and pinobanksin | |
Italy | Hydrochloric | 40 | caffeic acid, p-coumaric acid, ferulic acid isoferulic acid, and 3,4-dimethyl caffeic acid | |
Egypt | Ethanol | 12 | Gallic acid, rutin, kaempferol, Coumaric acid | |
Brazil | Ethanol and Dichloromethane | 18 | Cinnamic acid, flavonoids, benzoic acid and a few benzoates, non-hydroxylated aromatics, and aliphatic acids | |
Turkey | Water | 17 | Caffeic acid, trans-cinnamic, chlorogenic, and caffeoylquinic acids | |
Ethanol | Chrysin, caffeic acid phenethyl ester, pinocembrin, galangin, naringenin | |||
Brazil | Ethanol | 10 | Liquiritigenin, calycosin, formononetin, and biochanin | |
Algeria | Ethanol | 4 | Chlorogenic acid, caffeic acid, gallic acid, and p-coumaric acid | |
Argentina | Ethanol/water | 7 | Cinnamic acid, caffeic acid prenyl ester, caffeic acid 3,4-dihydroxyphenethyl ester, liquiritigenin, 2′,4′-dihydroxychalcone and 2′,4′-dihydroxy-3′-methoxychalcone |
