The present disclosure relates to an enzyme-rich extract obtained through solid-state fermentation (SSF) of Brewer's Spent Grain (BSG) to be used as a feed additive in animal diets, preferably fish diets. The technology also discloses a pre-treatment process of plant feedstuff-based (PF) diets in order to increase the nutrient bioavailability of said diets, thus increasing their nutritional value.
As the world population is increasing exponentially, there is a great demand for food. To meet this demand, there is a need for improved and efficient feed production, namely protein-rich aquafeed.
Brewer’s spent grain (BSG) is lignocellulosic biomass mainly composed of fiber and proteins, a desirable byproduct of the brewing industry. BSG can be transformed into enzyme-rich extracts through solid-state fermentation (SSF).
The present technology transforms BSG through SSF (usingAspergillusibericus) into a valuable enzyme-rich extract that can be used as a feed additive in animal diets, preferably fish diets.
The extract is used as a pre-treatment process for plant feedstuff-based diets, helping to release sugars and amino acids, leading to high diet and protein efficiencies. By increasing nutritional value, the quantity of diet per kg of fish produced can be reduced.
Current development status
Experimental technologies
Applications
Pre-treatment of feedstuff-based diets
Aquafeed additive
Desired business relationship
Technology selling
Patent licensing
Technology development
CIIMAR - Interdisciplinary Centre of Marine and Environmental Research - is a leading research and advanced training institution of the University of Porto, working at the frontier of Ocean Knowledge and Innovation.
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