TABLE 3.

Phenolic compounds and antioxidant activities of nine varieties of quinoa.

Phenolic components	ZLZX‐1 (white)	ZLZX‐2 (white)	ZLZX‐3 (white)	ZLZX‐4 (white)	ZLZX‐5 (white)	ZLZX‐6 (black)	ZLZX‐7 (black)	ZLZX‐8 (red)	ZLZX‐9 (red)
Isoorientin (mg/100 g)	28.06 ± 0.639e	44.50 ± 1.094c	37.19 ± 0.428d	49.54 ± 1.18b	48.83 ± 1.71b	54.36 ± 1.355a	50.88 ± 1.473b	54.44 ± 1.444a	52.93 ± 3.109b
Caffeic acid (mg/100 g)	0.62 ± 0.009f	1.00 ± 0.005e	0.65 ± 0.027f	1.71 ± 0.025c	2.16 ± 0.04b	1.63 ± 0.039c	1.40 ± 0.024d	0.99 ± 0.031e	2.92 ± 0.117a
Rutin (mg/100 g)	4.97 ± 0.082b	4.08 ± 0.209c	4.72 ± 0.148b	3.27 ± 0.10d	3.57 ± 0.057d	5.05 ± 0.306ab	5.54 ± 0.301ab	5.05 ± 0.33a	4.72 ± 0.271b
p‐Coumaric acid (mg/100 g)	15.89 ± 0.813e	19.11 ± 0.958d	15.75 ± 0.708e	24.58 ± 1.135bc	28.83 ± 0.757a	18.06 ± 1.038de	26.23 ± 1.945b	22.89 ± 1.495c	22.95 ± 0.727c
Ferulic acid (mg/100 g)	4.50 ± 0.148 cd	5.00 ± 0.242abc	5.56 ± 0.185a	4.02 ± 0.215d	4.54 ± 0.207 cd	4.84 ± 0.293bc	5.36 ± 0.326ab	5.35 ± 0.447ab	4.94 ± 0.298abc
Quercetin (mg/100 g)	0.46 ± 0.041 cd	0.41 ± 0.02de	.48 ± 0.007 cd	0.67 ± 0.04b	0.53 ± 0.01c	0.37 ± 0.029ef	0.47 ± 0.028 cd	0.32 ± 0.022f	0.90 ± 0.057a
Total (mg/100 g)	54.50 ± 1.55e	74.09 ± 2.101c	64.35 ± 1.079d	83.80 ± 2.504b	88.45 ± 0.772a	85.80 ± 0.861ab	89.90 ± 1.095a	89.06 ± 3.663a	86.86 ± 0.929ab
ABTS+• (μmol Trolox/gDW)	9.66 ± 0.46d	11.58 ± 0.13b	10.56 ± 0.59c	13.68 ± 0.27a	13.77 ± 0.26a	13.64 ± 0.21a	13.78 ± 0.13a	14.21 ± 0.12a	14.05 ± 0.09a
DPPH• (μmol Trolox/gDW)	12.71 ± 0.34e	16.48 ± 0.52c	14.47 ± 0.12d	17.94 ± 0.11b	18.31 ± 0.11ab	18.32 ± 0.06ab	18.2 ± 0.13ab	18.61 ± 0.08a	18.5 ± 0.06a

Note: Different lowercase letters are indicated for comparison at the 5% significant level.