Table 3.

Contents of individual phenolic compounds in petioles and leaves of six sweet potato varieties (mg/100 g FW)

Variety	ChA		4,5-diCQA		3,5-diCQA		3,4-diCQA		Sum1
	Petioles	Leaves	Petioles	Leaves	Petioles	Leaves	Petioles	Leaves	Petioles	Leaves
Danjami	7.25 ± 0.45c	80.12 ± 7.07d	4.65 ± 0.50b	65.10 ± 14.08c	13.41 ± 0.97b	190.10 ± 16.53c	2.31 ± 0.17c	20.42 ± 1.42c	27.62 ± 1.87c	355.73 ± 37.75c
Hayanmi	7.82 ± 0.15c	134.43 ± 4.89b	4.22 ± 0.54b	86.60 ± 2.10bc	11.64 ± 1.23c	275.71 ± 11.47b	N.D.	35.90 ± 1.33b	23.69 ± 1.91d	532.64 ± 19.76b
Hogammi	3.88 ± 0.14d	46.19 ± 0.52e	2.84 ± 0.36c	32.93 ± 7.29d	5.88 ± 0.41e	132.03 ± 12.36d	N.D.	13.03 ± 4.17d	12.60 ± 0.87e	224.19 ± 23.40d
Jinyulmi	16.07 ± 1.85a	155.92 ± 4.69a	10.54 ± 1.10a	155.81 ± 27.02a	20.58 ± 0.43a	311.35 ± 22.97b	3.17 ± 0.13b	37.03 ± 1.02b	50.37 ± 3.42a	660.12 ± 53.92a
Poongwonmi	8.65 ± 0.86bc	138.25 ± 7.24b	4.14 ± 0.51b	101.13 ± 10.58b	21.41 ± 1.51a	421.16 ± 26.06a	3.44 ± 0.16a	43.99 ± 2.50a	37.65 ± 2.82b	704.52 ± 46.29a
Yeonjami	10.11 ± 0.39b	114.66 ± 9.10c	4.77 ± 0.13b	97.27 ± 18.97b	8.08 ± 0.16d	403.79 ± 34.85a	N.D.	45.17 ± 3.03a	22.96 ± 0.67d	660.89 ± 63.04a

ChA chlorogenic acid; 4,5-diCQA 4,5-dicaffeoylquinic acid; 3,5-diCQA 3,5-dicaffeoylquinic acid; 3,4-diCQA 3,4-dicaffeoylquinic acid. N.D. not detected, FW fresh weight

¹Total amount of ChA, 4,5-diCQA, 3,5-diCQA, and 3,4-diCQA

^a–dValues with different letters in a column are significantly different (P < 0.05). Each value is expressed as mean ± standard deviation (n = 3)