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. 2018 Oct 1;28(2):337–345. doi: 10.1007/s10068-018-0481-3

Table 2.

Total phenolics, DPPH radical scavenging activity, and reducing power in petioles and leaves of six sweet potato varieties

Variety Total phenolics (g CAE/100 g FW) DPPH-scavenging (EC50, mg/mL) Reducing power (EC50, mg/mL)
Petioles Leaves Petioles Leaves Petioles Leaves
Danjami 0.07 ± 0.01b 1.16 ± 0.12c 2.26 ± 0.33a 0.25 ± 0.01b 4.68 ± 0.13ab 0.51 ± 0.01b
Hayanmi 0.07 ± 0.01b 1.29 ± 0.09c 2.08 ± 0.09a 0.17 ± 0.01c 2.51 ± 0.02c 0.42 ± 0.00c
Hogammi 0.07 ± 0.00b 0.65 ± 0.07d 2.31 ± 0.09a 0.40 ± 0.02a 4.64 ± 0.07b 0.77 ± 0.03a
Jinyulmi 0.14 ± 0.02a 1.91 ± 0.03a 1.94 ± 0.32a 0.13 ± 0.00d 2.59 ± 0.03c 0.37 ± 0.01cd
Poongwonmi 0.09 ± 0.01b 1.60 ± 0.12b 1.94 ± 0.32a 0.13 ± 0.01d 2.51 ± 0.02c 0.35 ± 0.01d
Yeonjami 0.07 ± 0.01b 1.54 ± 0.11b 2.15 ± 0.12a 0.18 ± 0.01c 4.82 ± 0.14a 0.37 ± 0.07cd

Total phenolics are expressed as a chlorogenic acid equivalent (CAE). FW means fresh weight. EC50 was obtained by interpolating from a linear regression analysis. Each value is expressed as mean ± standard deviation (n = 3). Values with different letters in a column are significantly different (P < 0.05)