Composted versus Raw Olive Mill Waste as Substrates for the Production of Medicinal Mushrooms: An Assessment of Selected Cultivation and Quality Parameters

Table 2

Total carbon (C), nitrogen (N), lignin, hemicellulose, and cellulose contents (values expressed on a dry matter basis) of the substrates used for mushroom cultivation experiments.

Substrates^1	C^2 (% d.w.)	N^2 (% d.w.)	C : N^2	C : N^3	Lignin^2 (g kg^−1)	Hemicellulose^2 (g kg^−1)	Cellulose^2 (g kg^−1)
WS	44.15	0.43	102.67	79.78	191	218	370
TPOMW 20%	49.98	0.72	69.42	60.44	224	242	334
TPOMW 40%	47.79	0.89	53.70	46.12	261	288	305
TPOMW 60%	44.12	0.99	44.57	37.57	296	317	271
cTPOMW 20%	42.02	0.93	45.18	40.55	221	220	321
cTPOMW 40%	40.34	1.05	38.42	35.46	250	222	287
cTPOMW 60%	37.76	1.24	30.45	28.74	273	223	231

¹WS: wheat straw; TPOMW: raw two-phase olive mill waste; cTPOMW: composted two-phase olive mill waste. Percentage values following TPOMW refer to its respective content (w/w) in the cultivation substrate.
²Values for substrates prior to any wheat bran amendment.
³Values after amendment of wheat bran.