Valorization of Olive Pruning Residues through Bioconversion into Edible Mushroom Pleurotus ostreatus (Jacq. Ex Fr.) P. Kumm. (1871) of Improved Nutritional Value

Table 5

Mineral composition (% dry weight) of substrates and mushrooms.

	WS		WS : OLPR 3 : 1 (v/v)		WS : OLPR 1 : 3 (v/v)
	S	M	S	M	S	M	S	M
Ca	0.42 ± 0.00^a	0.003 ± 0.000^A	0.89 ± 0.00^b	0.003 ± 0.000^A	0.93 ± 0.002^c	0.003 ± 0.000^A	0.00	0.43
K	1.43 ± 0.01^d	0.25 ± 0.00^A	0.88 ± 0.00^b	0.32 ± 0.00^C	0.95 ± 0.002^c	0.27 ± 0.001^B	0.00	0.00
Mn	0.08 ± 0.00^c	0.00003 ± 0.000^A	0.004 ± 0.001^a	0.00006 ± 0.000^A	0.004 ± 0.001^a	0.0001 ± 0.000^A	0.00	0.28
Fe	0.015 ± 0.002^a	0.002 ± 0.000^A	0.19 ± 0.00^c	0.003 ± 0.000^B	0.17 ± 0.002^b	0.002 ± 0.000^A	0.00	0.00
Na	0.068 ± 0.003^c	0.42 ± 0.00^B	0.063 ± 0.002^b	0.007 ± 0.001^A	0.060 ± 0.003^b	0.006 ± 0.001^A	0.03	0.00
Mg	0.083 ± 0.003^a	0.134 ± 0.002^A	0.140 ± 0.004^b	0.147 ± 0.001^A	0.140 ± 0.002^b	0.147 ± 0.002^A	0.00	0.65

Values are mean ± SD; means within the same column followed by the same letters of lowercase (corresponding to substrate: S) or uppercase (corresponding to mushroom: M) are not significantly different at according to Duncan’s multiple range test, S: substrate; M: mushroom.