Growth of mycelium oyster mushroom (Pleurotus ostreatus) in medium rice wastewater with coconut water

Abstract

The high consumption of oyster mushroom (Pleurotus ostreatus) is constrained by the production capacity and the provision of mushroom seed with low quality. Also, the price of starter pure brood stock is expensive, a calculated Rp400.000-Rp1.000.000 per-bottle. This research aims to determine the effect of rice wastewater with coconut water on the growth of the mycelium pure brood oyster mushroom. The research was conducted in July 2019-Februari 2020 in the integrated laboratory of the Faculty of Science and Technology UIN Sunan Gunung Djati Bandung. The method used is experimental with 9 treatment of combination of rice wastewater with coconut water concentration i.e. 100%:0%, 80%:50%, 80%:20%, 50%:80%, 50%:50%, 50%:20%, 20%:80%, 20%;50%, 0%:100%, and repeated three times. The combinations concentration of 50% rice wastewater with 50% coconut water produced the best growth of colony diameter anda mycelia growth rate compared to other treatments. Therefore, the combinartion medium 50% rice wastewater with 50% coconut water can be used as a medium to multiply pure broodstocks of oyster mushrooms.