CHEMICAL COMPOSITION AND PROCESSING POTENTIAL OF OYSTER MUSHROOM, PLEUROTUS OSTREATUS

Document Type : Original Article

Authors

1 Faculty of Agriculture, Cairo University, Giza, Egypt

2 Soils and Water Research Institute, Agricultural Research Centre, Giza, Egypt

10.21608/ejar.1993.462463

Abstract

The fruiting bodies of three strains of P. ostreatus, grown on rice straw, were subjected to chemical analysis. Trials to increase their shelf life was investigated by freezing, drying or canning. Fruiting bodies con­tained (on dry basis) 8.8-9.9% digestible protein, 64.3-66.3 % total sol­uble carbohydrates, 12.0% fiber, 5.0 % ash and 5.0% fat. Chemical composition of mushrooms was slightly changed according to the pro­cessing method and/or additives for processing. Off-flavour was demon­estrated in the unbianched and frozen mushroom. Both sun-drying with­out steam blanching and canning in either cream or butter sauces show reasonable potentialities for the industrial development of P. ostreatus mushroom products.