Can the use of bread waste decrease the environmental impact of beer? Case-specific evaluation and advice using an LCA approach

Autor: Meul, Marijke, Camerlinck, Melissa, De Corte, Marlies, Cierkens, Katrijn, Cobbaut, Katrien, De Leyn, Ingrid, Van Baelen, Freek, Feys, Johannes, De Clippeleer, Jessika, Vanderputten, Dana
Jazyk: angličtina
Rok vydání: 2021
Předmět:
Zdroj: Trends in Brewing, 14th, Abstracts
Popis: Yearly, 25% of total bread and bakery products in Flanders is lost or wasted[1]. Bread is also one of the most important contributors to the environmental impact of food waste in supermarkets[2]. Therefore, valorization of bread waste in new food products could reduce food waste in terms of mass, but also in terms of environmental impact. The aim of this study is to explore the valorization potential of bread waste as an input in beer brewing. Beer production using bread waste is technically feasible and several bread-based beers are already on the market. But, can the use of bread waste decrease the environmental impact of these beers? Or in other words, is beer production a beneficial valorization route for bread waste from an environmental viewpoint? To answer these questions, we perform a life cycle assessment (LCA) and develop a LCA-model to calculate the environmental impact of beer produced either with or without bread waste as an input. Several LCA-studies of beer have been published, but results vary widely, due to the type of beer studied (e.g. ale or lager), the packaging materials used, the brewery size and assumptions made concerning system boundaries. Therefore, a case-specific approach and detailed LCA tool using primary data is needed to evaluate the full case-specific environmental potential of using bread waste in beer brewing. Our LCA-model is intended to be used not only to calculate the potential environmental benefits of using bread waste in beer brewing, but also to give case-specific advice to brewers concerning alternative production options for including bread waste, and concerning the environmental impact of their activities in general
Databáze: OpenAIRE