Table 1.

Crude extract yields (%) attained after extraction of medicinal with solvents of different polarities.

					Extract yields (%)
Plant species	Family name	Common names	Voucher specimens	Parts used	AQ	ME	DCM	EA
Aloe ferox	Aloaceae	Red aloe (E), Inlaba (Z)	125861	Leaf gel	65.5	58.5	53.0	61.2
Brachylaena discolor	Asteraceae	Coastal silver oak (E), Phahla (Z)	125859	Leaves	60.0	58.1	56.0	55.7
Elaeodendron transvaalense	Celastraceae	Transvaal saffronwood (E), Ingwavum (Z), Mukuvhazwivhi(V)	BCM 117182	Bark	59.1	58.9	44.9	52.1
Euclea natalensis	Ebenaceae	Natal guarri (E), Inkunzi emnyama (Z)	125880	Leaves	66.7	83.9	56.8	59.4
Euclea undulata	Ebenaceae	Common guarri (E), Umgwali (Z)	125863	Leaves	65.7	66.2	56.5	62.4
Leonotis leonurus	Lamiaceae	Wild dagga (E), Imunyane (Z)	125878	Leaves	65.7	66.2	56.8	64.3
Melia azedarach	Meliaceae	Chinaberry (E), Umsilinga (Z), Muserenga (V)	125881	Leaves	72.3	52.1	59.1	68.3
Moringa oleifera	Moringaceae	Moringa, Drumstick tree	125879	Leaves	72.6	68.1	53.6	52.1
Plectranthus amboinicus	Lamiaceae	Country borage (E)	125882	Leaves	58.4	61.6	48.9	60.8
Sclerocarya birrea	Anacardiaceae	Marula (E), Umnganu (Z), Mufula (V)	125864	Leaf, bark	70.9	66.1	56.7	62.9
Solanum aculeastrum	Solanaceae	Poison apple (E), Mtuma (Z), Murulwa (V)	125864	Fruit	69.4	70.2	54.2	63.2
Strychnos madagascariensis	Loganiaceae	Heary-leaved monkey-orange (E), Mukwakwa (V)	125877	Leaves	61.7	60.5	48.5	56.7
Sutherlandia frutescens	Loganiaceae	Cancer bush (E), Umnwele (Z)	BCM 117163	Leaves	48.5	65.9	49.4	51.7
Warburgia salutaris	Canellaceae	Pepperbark tree (E), Isibhaba (Z), Manaka (V)	125860	Leaves	72.4	58.4	52.9	61.8

Solvents: AQ = Aqueous; ME = Methanol; DCM = Dichloromethane and EA: Ethyl acetate. Z = Zulu, E = English, V= Venda.