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Biorefineries for the valorization of macroalgal residual biomass and legume processing by-products to obtain new protein value chains for high-value food and feed applications. Contributing to a reduction of EU’s dependency on imported proteins and increase of raw material security.
The main objectives are a) to use the remains from botanical origin materials processing (legumes) and residual macroalgae as feedstock, which can provide demanded proteins in an eco-friendlier way, and b) optimizing the processing of algal biomass in biorefinery, in order to increase the protein harvest with respect to other processes at laboratory scale, with specific involvement in terms of quality and quantity. This project will demonstrate at pilot scale of both sustainable macroalgae (also known as seaweed) and legume-based biorefineries for the recovery of low-cost dietary proteins from alga-based and plant residual biomass and their validation to meet market requirements of consumers and industry.
A year-round supply of green algae, brown algae and legumes were ensured with help of project partners. Extraction process was optimized at lab scale for improving yield and purity, followed by scaling up from 100 g to 1 kg byproducts (pilot scale). Raw biomass which was initially characterized by its nutritional, physicochemical and toxicological features. Approximately 70-80% protein was extracted from initial biomass. 2 new bio-based value chains in the green macroalga line, 6 new bio-based value chains in the brown macroalga line, and 6 new bio-based value chains in the legume by-product line was established in this project. Different application fields ranging from 6 products in the food/beverage sector (healthy snack bars, smooth food, meat analogues, sports drinks, meal replacement shakes and marmalades) and 2 products in the animal feed sector were demonstrated successfully.
The Europe Seaweed Market is projected to reach $5.65 billion by 2030, at a CAGR of 16.6% from 2023–2030
Greenhouse gas emission mitigation
By upcycling residual biomass in the ALEHOOP biorefineries, it will reduce food wastage and thus reduce unnecessary water and energy consumption and loss of biodiversity. Create secondary source of revenue to algae farmers.
Algae and legume suppliers, Technology providers, and End users (protein market)
Remains of legumes and residual macroalgae
5
Alehoop
Biochemical extraction
Protein (Phycobiliprotein, Lectins, Rubisco), proteins from legume
NA
Spain
2020
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