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  4. Online monitoring of phytate content in plant residuals during wet-treatment
 
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Online monitoring of phytate content in plant residuals during wet-treatment

Citation Link: https://doi.org/10.15480/882.9091
Publikationstyp
Journal Article
Date Issued
2024-01-05
Sprache
English
Author(s)
Widderich, Niklas  
Technische Biokatalyse V-6  
Bubenheim, Paul  orcid-logo
Technische Biokatalyse V-6  
Liese, Andreas  orcid-logo
Technische Biokatalyse V-6  
TORE-DOI
10.15480/882.9091
TORE-URI
https://hdl.handle.net/11420/45271
Journal
Scientific reports  
Volume
14
Issue
1
Article Number
612
Citation
Scientific Reports 14 (1): 612 (2024)
Publisher DOI
10.1038/s41598-023-49950-0
Scopus ID
2-s2.0-85181480103
Publisher
Nature Research
The occurrence of organically bound phosphorus (P) as phytate in plant-based feeding material is a challenge for livestock farming due to limited utilization during the digestion by the animal. Its excretion into the environment through the manure pathway, poses a challenge, due to increased eutrophication and restrictions for P. Hence, while the routine supplementation of phytase enzymes in monogastric diets is common practice, metabolically triggering endogenous plant enzymes by wet-treatment prior to feeding can also lead to a better utilization of phytate bound P and increased digestibility by the animal. Nonetheless, traditional quantification of residual phytate content in plant material is both labor- and chemical-intense. The aim of this study is, therefore, to predict the remaining phytate content during wet-treatment through a straightforward and flexible methodological approach based on real-time analysis. For this, rye bran is used as a model substrate. A partial least squares regression algorithm relates the infrared spectra to the concentrations and predict the amount of P species that are transferred from the bran matrix to the liquid phase. By applying a mass balance for P and considering the effect of water compression, the amount of residual phytate content in rye bran at different time points of wet-treatment is determined. Results are compared to wet chemical methods, resulting in a RMSEP of 0.28 gphytate∙100 gbran−1. In addition, the study demonstrates the feasibility of this approach and provides insights into phytate degradation in plant residuals. The method holds the potential for further applications for the screening and investigation of feed material conditioning and also offers the possibility to employ various real-time analytical techniques for assessing phytate remnants in biological samples during wet-treatment.
DDC Class
570: Life Sciences, Biology
Funding(s)
Open-Access-Publikationskosten / 2022-2024 / Technische Universität Hamburg (TUHH)  
Publication version
publishedVersion
Lizenz
https://creativecommons.org/licenses/by/4.0/
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