Optimizing Briquette Performance of Mushroom Cultivation Waste Omah Jamur Ungaran Used the Taguchi Method: Circular Economy Approach

Abstract

Indonesia ranks 75^th of 166 countries receiving an achievement from the Sustainable Development Goals (SDGs). The main factor in the success is the appropriate sustainable waste management, which utilizes alternative energy sources to support a circular economy. One potential use for biomass waste generated from oyster mushroom cultivation is wood powder briquettes. The main ingredient of powder briquettes is the waste oyster mushroom cultivation of wood powder. Omah Jamur Ungaran is a Small Medium Enterprise (SME) that specializes in cultivating white oyster mushrooms. However, the cultivation process generates considerable waste. This study focused on two essential variables: moisture content and ash content. The research employs the Taguchi method as a parameter. The method considers five factors: water volume, baglog charcoal, tapioca, blending time, and drying oven temperature. The results indicate a ranking order of the factors: the first is drying oven temperature (in Celsius); second is water volume (in ml); third is baglog charcoal (in grams); fourth is tapioca (in grams); and fifth is blending time (in minutes). The optimal conditions demonstrated 50 ml of water volume, 66 grams of baglog charcoal, 20 grams of tapioca, a blending time of 3 minutes, and a drying oven temperature of 140°C. Under these conditions, the best ash content results were observed by values ranging from 11.7% to a maximum of 30%.