Abstract
A tofu industrial center in Sukoharjo Regency, Central Java requires approximately 700 kg of soybeans per day. There is some waste in tofu processing, including energy consumption, water consumption, and has a negative impact on the environment in the form of liquid waste and solid waste. This study aims to analyze and provide suggestions for improvements regarding the level of eco-efficiency in tofu processing. The method used is Life Cycle Assessment (LCA) using SimaPro software with the scope of "gate to gate". This research resulted in an eco-cost value of IDR 2,005,000 and an EEI value of 0.13 which means that it is affordable but not sustainable. Then obtained an EVR value of 7.5 and an EER rate of -6.5%, which means that the eco-efficiency of tofu products is quite poor. So that the proposed improvements that can be used are minimizing the use of raw materials, water and energy and treating waste from tofu processing according to the predetermined booklet.
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