Table 3.

Total phenolic (mg gallic acid equivalents/g f.w.), total flavonoid (mg rutin equivalents/g f.w.), ascorbic acid (mg/100 g f.w.) content, DPPH (mg ascorbic acid equivalents antioxidant capacity/100 g f.w.) and FRAP (μM/g f.w.) of white asparagus spears (cv. ‘Grolim’) as affected by spear diameter.

Spear diameter (mm)	Total phenolics	Total flavonoids	Ascorbic acid		DPPH	FRAP
12.0–15.9	0.259	0.156	21.55	a	6.17	13.70
16.0–19.9	0.251	0.179	19.33	b	6.14	14.28
20.0–23.9	0.236	0.172	16.83	c	5.44	14.98
24.0–27.9	0.251	0.152	16.00	c	6.39	14.56

Each data is the mean of six replicates. Different letters at each column denote significant differences between means (Duncan’s multiple range test, P < 0.05).