Table 6 Changes of acid value of yakgwa according to deep frying oil during storage period

	Storage period (week)
	0	1	2	3	4	5
	Soybean oil	NS 0.24±0.06b,1)	B 0.36±0.10a	NS 0.38±0.01a	NS 0.41±0.09a	NS 0.42±0.02a	NS 0.46±0.07a
Corn oil	0.32±0.05bc	B 0.30±0.04c	0.45±0.04a	0.40±0.05abc	0.44±0.04ab	0.50±0.12a
Canola oil	0.34±0.05bc	B 0.32±0.03c	0.35±0.02bc	0.41±0.03abc	0.47±0.08ab	0.54±0.14a
Rice bran oil	0.36±0.06ns	A 0.47±0.06	0.46±0.02	0.39±0.03	B0.43±0.05	0.52±0.10
Grape seed oil	0.35±0.08ns	B 0.30±0.02	0.40±0.14	0.36±0.04	0.46±0.04	0.43±0.08

Mean±SD
: Not Significant
Superscriptive letters in a row indicate significance at p<0.05 by Duncan's multiple range test
Superscriptive letters in a column indicate significance at p<0.05 by Duncan's multiple range test