在臺灣生產黑水虻幼蟲粉之生命週期評估

Abstract

Life Cycle Assessment (LCA) is a structured and comprehensive method to estimate the potential environmental impact of new processes or products. This thesis investigates the potential Green House Gas (GHG) emissions of using household food waste to produce larvae meal of the Black Soldier Fly Larvae (Hermetia illucens) in Taiwan applying a life cycle methodology. It is estimated that one tonne of food waste can be converted to 20 kg of black soldier fly larvae (BSFL) with potential GHG emissions equal to 4.00 kgCO2e. Therefore, 50 tonnes of food waste are needed to produce of 1 tonne of BSFL meal potentially generating 200 kgCO2e. In addition, a preliminary economic analysis is performed. The economic analysis results show that the annual food waste in Taiwan could be transformed to 12,000 and 120,000 tonnes of BSFL meal and compost material by adopting the black soldier fly larvae production scenario. The BSFL meal could be used to feed livestock or aquaculture species, partially replacing Taiwan’s dependency on soybean and fishmeal imports. BSFL production is economically feasible and environmental friendly as long as there is a reliable and constant source of food waste or any other organic waste in which the larvae might thrive. Addressing the need to reduce the dependency on feed ingredient imports in Taiwan is important for food security. As a result, BSFL production and other similar insect production systems to transform waste into valuable feed ingredients needs more attention from the academia and governmental support.