Table 3. Results of DPPH radical scavenging activity (%), iron chelating ability (%), and reducing power (O.D.) of mushroom powder

Parameters	Treatments	Concentration (%)
Parameters	Treatments	0	0.05	0.1	0.25	0.5	1
DPPH radical scavenging activity (%)	AA	0.00^b±0.01	93.9^aA±1.07	93.4^aA±0.23	93.4^aA±0.39	93.7^aA±0.39	93.5^aA±1.20
	W	0.00^d±0.01	35.8^cC±1.67	45.9^aB±0.82	42.4^bE±0.79	37.9^cD±0.96	40.8^bC±1.05
	K	0.00^d±0.01	23.4^cD±1.27	35.6^bC±1.84	49.1^aC±1.72	47.3^aC±1.90	49.9^aB±0.59
	S	0.00^d±0.01	40.9^cB±0.32	44.5^abB±1.41	45.9^aD±1.60	46.8^aC±1.80	41.7^bcC±2.11
	O	0.00^d±0.01	25.9^cD±2.27	43.3^bB±1.42	53.6^aB±1.55	53.0^aB±2.33	52.5^aB±2.35
Iron chelating ability (%)	EDTA	0.00^b±0.01	99.6^bA±0.54	98.0^aA±2.04	99.2^aA±0.55	98.6^aA±1.25	97.6^aA±2.33
	W	0.00^d±0.01	85.4^aB±1.59	87.6^aB±1.09	78.3^bD±1.86	74.1^cD±0.27	79.8^bC±1.91
	K	0.00^c±0.01	87.3^bB±1.45	90.1^aB±1.17	91.2^aB±1.37	91.5^aB±0.74	90.5^aB±2.03
	S	0.00^c±0.01	85.8^abB±1.58	89.1^aB±2.03	84.6^bC±1.90	84.8^bC±1.76	82.0^bC±1.93
	O	0.00^d±0.01	86.3^cB±1.33	87.4^bcB±1.55	88.6^bcB±0.80	89.5^bB±1.39	95.9^aA±1.47
Reducing power (O.D.)	AA	0.00^e±0.01	1.76^cA±0.01	1.76^aA±0.01	1.64^bA±0.01	1.56^cA±0.01	1.48^dA±0.01
	W	0.00^e±0.01	0.05^dB±0.01	0.07^dC±0.01	0.14^cC±0.01	0.27^bBC±0.01	0.53^aB±0.03
	K	0.00^f±0.01	0.03^eC±0.01	0.04^dC±0.01	0.08^cD±0.01	0.12^bD±0.01	0.19^aD±0.01
	S	0.00^e±0.01	0.05^dB±0.01	0.07^dC±0.01	0.16^cC±0.01	0.31^bB±0.02	0.61^aB±0.06
	O	0.00^d±0.01	0.04^dB±0.01	0.13^cB±0.03	0.21^bB±0.04	0.25^bC±0.04	0.40^aC±0.05

Means with different superscripts within the same row are different (p<0.05).
Means with different superscripts within the same column are different (p<0.05).
DPPH, 2,2-diphenyl-1-picrylhydrazyl; AA, ascorbic acid; EDTA, ethylene diamine tetraacetic acid; W, white button mushroom (Agaricus bisporus); K, king oyster mushroom (Pleurotus eryngii); S, shiitake mushroom (Lentinula edodes); O, oyster mushroom (Pleurotus ostreatus).