Biological efficiency of Pleurotus eryngii grown in a mixture of lignocellulosic substrates.

Pleurotus eryngii is a fungus highly appreciated for having excellent organoleptic characteristics and a high nutritional value, contains: dietary fibers (4.64%), carbohydrates (9.6%), proteins (1.88-2.65%), amino acids (glutamic acid, aspartic acid and arginine), vitamins (A, B1, B2, C and D) and minerals (Ca, Mg, Na and K). It has been reported from 7% to 93% biological efficiency (EB) in its crop. The EB and the production rate (TP) were evaluated using a mixture of agroforestry substrates (40% corn cub, 25% coconut fiber, 25% corn stubble and 10% wheat bran). The substrates were hydrated for 30 minutes with hot water, drained to 70% moisture and then placed 1,500 grams in six polypropylene filter bags that were sterilized at 121°C for two hours. They were allowed to cool, inoculated with wheat grains invaded by the mycelium of P. eryngii (HEMIM-139) and incubated at 22 ± 4°C. After 81 days the basidiomas were harvested. On average, 10 fruits were obtained per bag, total weight 569.2 grams, EB 142.8% and TP 1.6. The mixture used was shown to be effective in increasing the EB of P. eryngii. [ABSTRACT FROM AUTHOR]