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Nutrient uptake in supplemented substrate by oyster mushroom.

Authors :
Lucas de Jesus, Gabriel
José Lavoranti, Osmir
Schafer, Gilmar
Dias de Oliveira, Gabriel
Scheffer de Andrade Silva, Ricardo
Lorena Cuquel, Francine
Source :
World Journal of Microbiology & Biotechnology; Jul2023, Vol. 39 Issue 7, p1-9, 9p
Publication Year :
2023

Abstract

Spent mushroom substrate (SMS) is a promising alternative for supplementing oyster mushroom substrate, replacing conventional cereal bran. Therefore, the objective was to evaluate the production of Pleurotus ostreatus supplemented with Lentinula edodes' SMS, through the nutritional analysis of the substrate. Wheat straw was used as substrate and supplemented with rice bran (RB) or SMS in 0%, 7%,15% and 30%. Ca, K, Mg, Mn, Zn, Cu and Fe contents of the cultivation substrates (before and after harvest) were determined through atomic absorption spectrophotometry. Mycelial growth (cm²/day), mycelial time colonization (days), number of clusters, number of pileus, average clusters weight (g), pileus lenght (cm) and width (cm), productivity (1st, 2nd and 3rd flush) (%), biological efficiency (%) of mushrooms were evaluated. Results indicated mycelial growth was higher (0.87 cm²/day compared to the Control) when the substrate was supplemented regardless of the source. The proportions of 15% of SMS achieved the highest biological efficiency (107% − 15% SMS versus 66% - Control). The only nutrients that showed differences in absorption were Ca, K and Mn, in which substrates supplemented with SMS had greater absorption of Ca (5.37 g.kg<superscript>− 1</superscript> versus 1.94 g.kg<superscript>− 1</superscript> in Control) while substrates supplemented with RB absorbed more K (6.56 g.kg<superscript>− 1</superscript> versus 3.74 g.kg<superscript>− 1</superscript> in Control). The mineral composition of the substrate has a direct impact on the growth and yield of P. ostreatus, highlighting the potential of SMS as a alternative to traditional bran supplementation. [ABSTRACT FROM AUTHOR]

Details

Language :
English
ISSN :
09593993
Volume :
39
Issue :
7
Database :
Complementary Index
Journal :
World Journal of Microbiology & Biotechnology
Publication Type :
Academic Journal
Accession number :
164079061
Full Text :
https://doi.org/10.1007/s11274-023-03622-3