Table 4. Spread factor and loss rate of cookies added with different amounts of onion peel powder

Measurement	Group1)				F-value
	Control	OP2	OP4	OP6
Spread factor	6.25±0.052)a3)	5.97±0.04b	5.64±0.03c	5.53±0.14c	47.81**4)
Loss rate (%)	13.51±0.82a	12.95±0.40a	11.50±0.38b	11.44±0.78b	8.11**

Control, no onion peel powder added; OP2, 2% onion peel powder added; OP4, 4% onion peel powder added; OP6, 6% onion peel powder added.
Values represent the mean±SD (n=3).
Different superscripts in a same row indicate significantly different by Duncan’s multiple range test (p<0.05).
p<0.01.