We found a match
Your institution may have access to this item. Find your institution then sign in to continue.
- Title
An up-scaled biotechnological approach for phosphorus-depleted rye bran as animal feed.
- Authors
Widderich, Niklas; Stotz, Johanna; Lohkamp, Florian; Visscher, Christian; Schwaneberg, Ulrich; Liese, Andreas; Bubenheim, Paul; Ruff, Anna Joëlle
- Abstract
Side streams from the milling industry offer excellent nutritional properties for animal feed; yet their use is constrained by the elevated phosphorus (P) content, mainly in the form of phytate. Biotechnological P recovery fosters sustainable P management, transforming these streams into P-depleted animal feed through enzymatic hydrolysis. The enzymatic P mobilization not only enables P recovery from milling by-products but also supports the valorization of these streams into P-depleted animal feeds. Our study presents the scalability and applicability of the process and characterizes the resulting P-depleted rye bran as animal feed component. Batch mode investigations were conducted to mobilize P from 100 g to 37.1 kg of rye bran using bioreactors up to 400 L. P reductions of 89% to 92% (reducing from 12.7 gP/kg to 1.41–1.28 gP/kg) were achieved. In addition, High Performance Ion Chromatography (HPIC) analysis showed complete depletion of phytate. The successful recovery of the enzymatically mobilized P from the process wastewater by precipitation as struvite and calcium hydrogen phosphate is presented as well, achieving up to 99% removal efficiency. Our study demonstrates a versatile process that is easily adaptable, allowing for a seamless implementation on a larger scale.
- Subjects
ANIMAL feeds; HIGH performance liquid chromatography; BRAN; RYE; FLOUR industry
- Publication
Bioresources & Bioprocessing, 2024, Vol 11, Issue 1, p1
- ISSN
2197-4365
- Publication type
Article
- DOI
10.1186/s40643-024-00765-5