Table 1.

Absorbance values, concentration equations and IC₅₀ values for of Pleurotus ostreatus stored at different temperatures

Temp. (oC)	Concentration (mg/ml)*	Absorbance (517 nm)	Concentration equation	R 2	IC50 (mg/ml)
	1.9 × 10−4 mol/L DPPH 3 ml + Methanol (%75) 3 ml	0.682
+20	0.83	0.327	y = 19.14c* + 43.86	0.809	0.321
	1.66	0.154
	2.50	0.137
	3.33	0.133
+4	0.83	0.482	y = 20.38c* + 12.99	0.988	1.816
	1.66	0.366
	2.50	0.227
	3.33	0.142
−10	0.83	0.531	y = 21.46c* + 4.00	0.977	2.144
	1.66	0.401
	2.50	0.317
	3.33	0.152
−20	0.83	0.514	y = 19.11c* + 6.85	0.950	2.258
	1.66	0.421
	2.50	0.345
	3.33	0.177
−40	0.83	0.597	y = 13.27c* + 3.74	0.946	3.486
	1.66	0.479
	2.50	0.438
	3.33	0.359

Mushroom extract concentrations (*): 0.83; 1.66; 2.50; 3.33 mg/mL (g/L)