<i>Pleurotus</i> spp. cultivation on <i>Brachiaria</i> sp. straw treatment with alkaline water

Iossi, Matheus Rodrigo; Cobos, Juan Diego Valenzuela; Alegria, Francisco J. Gea; Zied, Diego Cunha

doi:10.1016/j.bjm.2018.06.003

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Brazilian Journal of Microbiology

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Short communication • Braz. J. Microbiol. 49 (suppl 1) • Nov 2018 • https://doi.org/10.1016/j.bjm.2018.06.003 copy

Pleurotus spp. cultivation on Brachiaria sp. straw treatment with alkaline water

Authorship SCIMAGO INSTITUTIONS RANKINGS

Abstract

The aim of this research was to evaluate the efficiency of aqueous alkali-treated Brachiaria straw for the cultivation of appropriate species of oyster mushroom. The substrate used in the cultivation of various Pleurotus spp. was soaked for 20 min by using two different procedures: (i) 0.5–2.0% Ca(OH)₂ in 100 L water, and (ii) 50–250 L water. As a result, 1% Ca(OH)₂ dissolved in 100 L water and 3.5 kg of Brachiaria straw presented the best production. The most suitable species for the application of the present method were P. pulmonarius and P. sapidus. The success of this technique is directly related to the concentration of Ca(OH)₂ and water, the species, and the origin and quality of raw material used as the substrate in the production of oyster mushroom.

Keywords
Brachiaria straw; Cheap treatment; Sciarid flies; Yield

Species	Ca(OH)₂ (%)
	0.0	0.5	1.0	2.0
Yield, %
P. sapidus	0.83 b A	5.57 b A	19.07 a A	15.78 a A
P. ostreatus var. Florida	N.F.^a a N.F: not fructified. Values followed by different lowercase letters within a line and uppercase letters within a column are significantly different among the yield parameters at p < 0.05, according to Tukey's test, n = 7.	0.49 a A	5.98 a B	3.01 a B
Biological efficiency, %
P. sapidus	10.38 b A	69.30 b A	198.38 a A	159.75 a A
P. ostreatus var. Florida	N.F.	6.13 a A	74.75 a B	37.63 a B
Number of mushrooms, n
P. sapidus	3 c A	23 bc A	57 a A	47 ab A
P. ostreatus var. Florida	N.F.	11 a A	16 a B	6 a B
Weight of mushrooms, g
P. sapidus	0.29 a A	0.98 a A	1.60 a A	1.73 a A
P. ostreatus var. Florida	N.F.	0.10 b A	1.42 ab A	2.46 a A

Species	Water (L)
	50	100	150	200	250
Yield, %
P. sapidus	5.50 abc A	7.68 a A	1.68 bc A	1.51 c B	7.58 ab A
P. pulmonarius	8.18 a A	10.84 a A	5.59 a A	8.46 a A	7.26 a A
Biological efficiency, %
P. sapidus	68.75 abc A	96.00 a A	21.00 bc A	18.80 c B	94.75 ab A
P. pulmonarius	102.25 a A	135.50 a A	69.87 a A	105.70 a A	90.75 a A
Number of mushrooms, n
P. sapidus	11 ab A	18 ab A	5 b A	4 b B	24 a A
P. pulmonarius	18 a A	15 a A	13 a A	16 a A	12 a B
Weight of mushrooms, g
P. sapidus	0.41 a A	0.64 a A	0.25 a A	0.19 a A	0.44 a A
P. pulmonarius	0.50 a A	0.76 a A	0.32 a A	0.46 a A	0.64 a A

Sociedade Brasileira de Microbiologia USP - ICB III - Dep. de Microbiologia, Sociedade Brasileira de Microbiologia, Av. Prof. Lineu Prestes, 2415, Cidade Universitária, 05508-900 São Paulo, SP - Brasil, Ramal USP 7979, Tel. / Fax: (55 11) 3813-9647 ou 3037-7095 - São Paulo - SP - Brazil
E-mail: bjm@sbmicrobiologia.org.br

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[1] *Corresponding author. E-mail: dczied@gmail.com (D.C. Zied).