Assessment of lignocellulosic residues from Northern Patagonian Andes (Argentina) for cultivation of Pleurotus ostreatus

RUGOLO, MAXIMILIANO; ROGGERO LUQUE JUAN MANUEL; RAJCHENBERG MARIO; BARROETAVEÑA CAROLINA

Universitas Scientiarum

Faculty of Sciences of the Pontificia Universidad Javeriana

Lugar: Bogota; Año: 2021 vol. 26 p. 159 - 177

0122-7483

This work evaluated mycelial growth rate (Kr) and fruiting of two Pleurotus ostreatus commercial strains (A01, 129) on formulations composed of lignocellulosic residues from farming and agro-industry of Northern Patagonian Andes, and of woody materials from invasive plants. Rosehip fluffs(RF), rosehip woodchips (RWC), southern beech wood shavings (SBWS), wheat straw (WS), andwillow woodchips (WWC) were used as base substrates, and brewing bagasse (BB) as an alternativesupplement to wheat bran (WB). Kr was higher in WS-WB and WS-BB for both strains. Experimentsin fruiting chambers showed biological efficiencies (BEs) above 40 % in WS-BB (both strains) andWS-WB (strain 129). Formulations using RWC or WWC gave BEs under 40 %, while those composedof SBWS or RF showed lower Kr and contamination by moulds. Medium-scale fruiting experimentsusing strain A01 showed the highest BEs in WS-BB and RWC-WB. These results suggest that WSis the best substrate for Pleurotus ostreatus culture, although scarce in Northern Patagonian Andes.Nevertheless, WWC and RWC are suggested as alternative substrates, while BB is cheap and abundant, suitable as an alternative supplement to WB.