A large amount of agro-waste is produced annually world over. Agricultural straw consists mainly of cellulose, hemicellulose and lignin, the most abundant renewable biopolymer. Much of this material is disposed of by burning, which results in environmental pollution; only a little is used as a feed for ruminants. The use of fungi for conversion of lignocellulosic waste into food and feed rich in protein have gained importance as an alternative for developing unconventional source of proteins. Species of Pleurotus (oyster mushroom) represents the second largest variety of the mushroom in the...