Comparative Analysis of the Properties of Acid-Base Indicator of Rose (Rosa setigera), Allamanda (Allamanda cathartica), and Hibiscus (Hibiscus rosa-sinensis) Flowers

Table 1

Percentage yield of the plant extract.

Plant	Extraction solvent	Mass of powder plant (g)	Mass of extract (dye) obtained (mg)	Percentage yield (%)
Rose	Water	20	220	1.10
	Methanol	20	325	1.63
Allamanda	Water	20	250	1.25
	Methanol	20	310	1.55
Hibiscus	Water	20	290	1.45
	Methanol	20	340	1.70