Quantity and quality yields of oyster mushrooms: Pleurotus Pulmonarius TISTR_Ppul-01 and Pleurotus Ostreatus TISTR_Post-01 with waste coffee grounds

Abstract

The effect of mushroom growing materials derived from agricultural waste materials, namely sawdust and waste coffee grounds on yield and quality of oyster mushrooms: (Pleurotus Ostreatus) TISTR_Post-01 and
(P. Pulmonarius) TISTR_Ppul-01 was studied. These formulations were: (T1) 100% sawdust (control), (T2) waste coffee grounds with sawdust as the ratio 70:30, (T3) 50:50 and (T4) 100% replacement (coffee grounds only). The studied parameters were comprised of mycelial growth rate, fresh mushrooms total weight, including quality as well as nutritional analyses. The oyster mushroom mycelial growth rate in both species on 100% sawdust exhibited the fastest rate that fulfilled in the bags, following by the 50% and 70% formula ratios of those with the coffee ground waste, respectively. The ratios were only used during 26, 47, 60 and 80 days. Total weight of fresh mushrooms of TISTR_Post-01 showed the highest yield (257.99g/bas) when cultivated on waste coffee grounds that replacement ratios were 50%. On the other hand, the highest yield of TISTR_Ppul-01 (182.82g/bag) was obtained when cultivated on the formula of waste coffee grounds replacement ratios were 70%. The mushroom cap physically appeared in spherical shape, showed both the largest diameter and the greatest length. The nutrition ingredients constituted of high protein, carbohydrate and some mineral contents. As a result, the quantity and quality of oyster mushroom from both formulae were greater when compared with the control treatment. The waste coffee grounds combined with sawdust used as mushroom cultivated materials is value added of waste coffee grounds, and it could reduce the use of sawdust by 50-70% and, decrease the cost for mushroom production.