Table 2.

The nature and color of crude extracts of green tea cultivars and their yield

Type of extract	Solvent	Green tea cultivars	Nature and color of extract	% yield
Crude	Methanolic	AT	Powdered, dark brown	4.00
		KW	Coal tar form, black	7.33
		PN	Lustrous thick, black	12
		IP	Lustrous thick, dark green	14.6
Crude	Acetone	AT	Thick, viscous, dark brown	26.8
		KW	Particulate, dark green	5.06
		PN	Particulate, dark green	9.00
		IP	Oily particulate, dark green	3.83
Crude extract	Aqueous	AT	Liquid, dark brown	3.07
		KW	Liquid, dark brown	7.33
		PN	Liquid, dark brown	12.00
		IP	Liquid, dark brown	14.6

Percentage yield = Weight of the sample extract obtained (g) × 100/Weight of the powdered sampled used (g)