Adding value to waste from onion processing
Ondernemers sociëteit voedingsindustrie
B2B Communications
Wallbrink Crossmedia
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Adding value to waste from onion processing

  • 21 October 2021

Onion growers and the processing industry, together with colleges Inholland and Van Hall Larenstein, have developed a process to add value to the large amount of residual flow generated by onion cultivation and processing. This residual flow comprises more than 0.5 million tonnes per year. The focus is on separating a stream containing mainly proteins (27% of dry matter) from a pulp stream containing fibres (70% of dry matter). The second stream currently goes to bio-digestion plants. The Pulp Vision project focuses on the upgrading of this pulp fraction into a high-quality end product that can be used to enrich foodstuffs with dietary fibres. These soluble and insoluble dietary fibres can serve to promote health.

Source: Greenport Noord Holland Noord