Potential use of tomato stubble as substrate for Pleurotus spp. Cultivation
DOI:
https://doi.org/10.33885/sf.2008.3.1027Keywords:
Oyster mushroom, tomato wastes, solid State fermentationAbstract
Mexico produces approximately 14.4 x 106 tons of tomato stubble per year (RT)
most of it being discarded. This study evaluated the production of P. pulmonarius (IE-4) and P.
ostreatus (IE-8), by solid state fermentation (FS) of RT in combination with vineyard prunings
(MV) or wheat straw (PT); mixtures were: RT (1:0), RT-MV (1:1) and RT-PT (1:1). Biological
efficiency (EB), production rate (TP), yield (R) and chemical changes in the substrate after
harvesting were determined. EB varied from 92.0 to 139.8 %, with the highest value in RT (IE-
4); TP from 1.4 to 2.9 % and R from 6.4 to 9.8 %. Bioconversion oscillated between 57.7 and
63.9 %, with the highest value in RT-PT (IE-8). Substrate crude protein and total fat contents
decreased significantly in all treatment, after FS with Pleurotus, except RT-PT (IE-4), in which
fat concentration was similar to controls Ash content ranged from 10.7 to 18.2 % and the
C:N ratio increased between 11.4 and 32.4 %, compared to controls RT showed potencial
as a lignocellulosic source for Pleurotus spp. cultivation
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