International Journal of Agricultural Science Research Vol. 4(6), pp. 126-131, June 2015 ISSN 2327-3321 ©2015 Academe Research Journals

 

Full Length Research Paper

The effects of different substrates on sporophore yield, mineral and nutrient composition of Pleurotus tuber-regium fries singer in Calabar, Nigeria

Okoi, Arikpo Ikpi and Iboh, Cletus Inah

Department of Biological Sciences, Cross River University of Technology, Calabar PMB. 1123, Calabar, Nigeria.

*Corresponding author. E-mail: clenaboh@yahoo.com.

Accepted 16 June, 2015

Abstract

The effects of four agricultural wastes-yam (Dioescorea rotundata) peels, plantain (Musa paradisica) peel, cocoyam (Colocasia esculenta) peels and cassava (Manihot esculenta) peels on sporophore yield, nutrient and mineral composition of Pleurotus tuber-regium were investigated. Yield was highest in plantain peel substrate (63.50±2.30 g), while yam peel substrate (36.60±3.80 g) recorded the lowest yield. There was variation in the nutrient status of the fruit bodies harvested from the different substrates. Fruit bodies from yam peel recorded the highest moisture (15.85±0.30%) and carbohydrate content (14.90±4.50%), while plantain peel recorded the highest protein (18.52±1.52%) and crude fibre content (13.75±4.51%). The least fat content was recorded in fruit bodies from yam peel substrate (3.20±0.23%). However, there was more calcium than magnesium, zinc or iron in fruit bodies.

Key words: Agro waste substrates, sporophore yield, nutrient content, mushroom.