Table 1.

Cancer Chemopreventive Polyphenols in some Nigerian Foodstuffs

S/No	Food (Common Names)	Foods (Botanical Names)	Polyphenol Composition
1.	African pear, African plum	Dacryodes edulis fruit	Gallate, methylgallate, catechol, ellagic acid, quercetin and quercetin rhamnoside
2.	Drumstick, Horse Radish Tree	Moringa oleifera	Chlorogenic acid, rutin, quercetin glucoside, kaempferol rhamnoglucoside, procyanidins
3.	African olive	Canarium schweinfurthii Engl	Catechol, p-hydroxybenzaldehyde, dihydroxyphenylacetic acid, tyrosol, p-hydroxybenzoic acid, dihydroxybenzoic acid, vanillic acid, phloretic acid, pinoresinol, secoisolariciresinol
4.	Soursop, Graviola, Brazilian pawpaw	Annona muricata	Annonaceous acetogenins (annomontacin, annomuricatins, annomuricins, annomutacin, annonacin, annonacinone annocatalin, annohexocin, annomonicin, annopentocin, muricins muricatetrocin, longifolicin epomuricenins, epomurinins, gigantetrocins, etc)
5.	Tomatoes	Lycopersicon esculentum Mill	Lycopene
6.	Cabbage	Brassica oleracea	Indole-3-carbinol
7.	Soya beans	(Glycine max)	Isoflavones (daidzein and genistein)
8.	Green tea	Camellia sinensis	(-) epigallocatechin gallate (EGCG), (-) epicatechin, (-) epicatechin-3-gallate and (-) epigallocatechin -3-gallate
9.	Chili pepper	Capsicum spp	Capsaicin
10.	Citrus fruits	Citrus spp	Pectins, Limonoids