Table 4. Organic acids of oyster mushrooms with different drying methods

Drying method	Organic acid (mg%)
Drying method	Citric acid	Malic acid	Acetic acid	Succinic acid	Lactic acid	Total
Hot-air dried	25.16±0.40¹⁾^a²⁾	10.46±0.30^a	10.43±0.45^a	4.16±0.30^b	25.00±0.45^ab	75.21±0.39^a
Cold-air dried	23.50±0.60^b	10.33±0.20^a	9.33±0.20^b	4.33±0.20^b	24.20±0.26^b	71.69±0.24^b
Freeze-dried	25.03±0.50^a	9.37±0.15^b	9.33±0.15^b	5.46±0.05^a	25.23±0.15^a	74.42±0.24^a

Each value represents the mean±SD of three determinations.
Mean with different superscripts (^a,b) are significantly different at p<0.05 by Duncan’s multiple range test.