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High Capacity Functionalized Protein Superabsorbents from an Agricultural Co-Product: A Cradle-to-Cradle Approach

Capezza Villa, Antonio José and Cui, Yuxiao and Numata, Keiji and Lundman, Malin and Newson, William Roy and Olsson, Richard Tobias and Johansson, Eva and Hedenqvist, Mikael Stefan (2020). High Capacity Functionalized Protein Superabsorbents from an Agricultural Co-Product: A Cradle-to-Cradle Approach. Advanced Sustainable Systems. 4 , 2000110
[Journal article]

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Abstract

Synthesis of superabsorbent particles from nontoxic wheat gluten (WG) protein, as an industrial co-product, is presented. A natural molecular cross-linker named genipin (a hydrogenated glycoside) is used together with a dianhydride (ethylenediaminetetraacetic EDTAD), to enable the preparation of a material with a network structure capable of swelling up to approximate to 4000% in water and approximate to 600% in saline solution. This represents an increase in swelling by over 10 times compared to the already highly absorbing gluten reference material. The carboxylation (using EDTAD) and the cross-linking of the protein result in a hydrogel with liquid retention capacity as high as 80% of the absorbed water remaining in the WG network on extensive centrifugation, which is higher than that of commercial fossil-based superabsorbents. The results also show that more polar forms of the reacted genipin are more effectively grafted onto the protein, contributing to the swelling and liquid retention. Microscopy of the materials reveals extensive nanoporosity (300 nm), contributing to rapid capillarity-driven absorption. The use of proteins from agricultural industries for the fabrication of sustainable protein superabsorbents is herein described as an emerging avenue for the development of the next generation daily-care products with a minimal environmental impact.

Authors/Creators:Capezza Villa, Antonio José and Cui, Yuxiao and Numata, Keiji and Lundman, Malin and Newson, William Roy and Olsson, Richard Tobias and Johansson, Eva and Hedenqvist, Mikael Stefan
Title:High Capacity Functionalized Protein Superabsorbents from an Agricultural Co-Product: A Cradle-to-Cradle Approach
Series Name/Journal:Advanced Sustainable Systems
Year of publishing :2020
Volume:4
Article number:2000110
Number of Pages:13
Publisher:WILEY-V C H VERLAG GMBH
Language:English
Publication Type:Journal article
Article category:Scientific peer reviewed
Version:Published version
Copyright:Creative Commons: Attribution 4.0
Full Text Status:Public
Subjects:(A) Swedish standard research categories 2011 > 2 Engineering and Technology > 204 Chemical Engineering > Polymer Technologies
Keywords:cross-linking, functionalization, proteins, superabsorbents, sustainability
URN:NBN:urn:nbn:se:slu:epsilon-p-107041
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-107041
Additional ID:
Type of IDID
DOI10.1002/adsu.202000110
Web of Science (WoS)000548198200001
ID Code:22659
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
Deposited By: SLUpub Connector
Deposited On:25 Feb 2021 10:23
Metadata Last Modified:25 Feb 2021 10:31

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