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- Title
Identifying the sustainability route of asparagus co-product extraction: From waste to bioactive compounds.
- Authors
Santiago, Beatriz; Feijoo, Gumersindo; Moreira, Maria Teresa; González-García, Sara
- Abstract
Rutin is a flavonol glycoside that is found in greater proportion in asparagus stalks. Consid- ering the possibility of valorization of solid waste from the food industry, this research aims to evaluate and compare the environmental profile of the different schemes of rutin aspara- gus extraction. Specifically, Soxhlet, pressurized liquid and supercritical fluid extractions, all of them using ethanol as the extracting agent. The environmental analysis is conducted accordingto the Life Cycle Assessment methodology under a mass and economic allocation. The results, under economic allocation, show that the scenario based on pressurized liquid extraction have the best environmental profile. However, when mass allocation is consid- ered, the pressurized liquid-based scenario is the worst choice. Consequently, the choice of the solvents will influence the Soxhlet extraction performance. In this regard, ethanol, methanol and ethyl acetate are selected. The solvent comparison identifies ethyl acetate as the extraction agent with the worst environmental profile.
- Subjects
BIOACTIVE compounds; FOOD industrial waste; SUPERCRITICAL fluid extraction; ASPARAGUS; SOLID waste
- Publication
Food & Bioproducts Processing: Transactions of the Institution of Chemical Engineers Part C, 2021, Vol 129, p176
- ISSN
0960-3085
- Publication type
Article
- DOI
10.1016/j.fbp.2021.08.005