Table 8. Qualitative and quantification of flavonoid using HPLC in 100% ethanol extracts from apple flowers with the different drying conditions

Drying conditions	Sample flower name	Rutin2)	Quercitrin	Luteolin	Isoquercitrin	Apigenin	Quercetin	SUM
Hot air drying (HD)	‘Hongno’1)	1.63)	6.1	0.2	1.2	0.5	0.2	9.8
	‘Aori’	10.6	10.2	0.7	8.3	1.2	0.2	31.2
	‘Fuji’	0.5	1.9	0.2	0.3	0.4	0.2	3.5
	‘Jonathan’	1.5	5.5	0.2	1.1	0.4	0.1	8.8
	‘Myanmar’	0.4	1.3	0.1	0.2	0.3	0.1	2.4
Freeze drying (FD)	‘Hongno’	15.0	30.0	0.3	12.2	0.6	0.3	58.4
	‘Aori’	28.9	50.7	0.8	23.7	1.4	0.3	105.8
	‘Fuji’	8.7	24.8	0.4	7.4	0.8	0.1	42.2
	‘Jonathan’	21.0	34.3	0.6	17.1	1.1	-	74.1
	‘Myanmar’	9.3	21.3	0.4	7.8	0.8	0.1	39.7

Each sample concentration was 2 mg/mL.
Each sample standard was 0.2-100 mg/kg.
Units was mg/kg.