Kajian Potensi Listrik Alternatif Dari Limbah Buah-Buahan sebagai Sumber Energi untuk Pembuatan Bio-Baterai

Abstract

Organic waste from vegetables and fruits can be transformed into environmentally friendly alternative energy. Fruits that contain electrolytes can be utilized as a renewable alternative source of electrical energy in the form of eco-friendly bio-batteries, which do not contribute to pollution. This research aims to obtain the fermentation temperature and environment, pH before and after fermentation, electrical voltage, electrical current, electrical power, electrical resistance, and electrical energy in waste from starfruit (Averrhoa carambola), mango (Mangifera indica), and strawberry (Fragaria) with fermentation durations of 8, 10, and 12 days. The research was conducted using an experimental method with a complete randomized factorial design. The results of the research showed that the best treatment was found in strawberry waste with an 8-day fermentation period. The temperature after fermentation was 28°C, the environmental temperature after fermentation was 29°C, pH before fermentation was 4, after fermentation was 3.2, voltage was 2.97 volts, current was 3.65 mA, power was 10.84 mW, resistance was 1297 Ohm, and electrical energy was 73,32 mWh.