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Acylation of agricultural protein biomass yields biodegradable superabsorbent plastics

Capezza, Antonio José and Muneer, Faraz and Prade, Thomas and Newson, William and Das, Oisik and Olsson, Richard T. and Hedenqvist, Mikael S. and Johansson, Eva (2021). Acylation of agricultural protein biomass yields biodegradable superabsorbent plastics. Communications Chemistry. 4 , 52
[Research article]

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Abstract

Superabsorbent materials can absorb many times their weight in water, but are commonly derived from petroleum. Here, acylation of coagulated potato protein concentrate or soluble potato protein fruit juice yields an effective, mould-resistant, and biodegradable superabsorbent polymer.Superabsorbent polymers (SAP) are a central component of hygiene and medical products requiring high liquid swelling, but these SAP are commonly derived from petroleum resources. Here, we show that sustainable and biodegradable SAP can be produced by acylation of the agricultural potato protein side-stream (PPC) with a non-toxic dianhydride (EDTAD). Treatment of the PPC yields a material with a water swelling capacity of ca. 2400%, which is ten times greater than the untreated PPC. Acylation was also performed on waste potato fruit juice (PFJ), i.e. before the industrial treatment to precipitate the PPC. The use of PFJ for the acylation implies a saving of 320 000 tons as CO2 in greenhouse gas emissions per year by avoiding the industrial drying of the PFJ to obtain the PPC. The acylated PPC shows biodegradation and resistance to mould growth. The possibilities to produce a biodegradable SAP from the PPC allows for future fabrication of environment-friendly and disposable daily-care products, e.g. diapers and sanitary pads.

Authors/Creators:Capezza, Antonio José and Muneer, Faraz and Prade, Thomas and Newson, William and Das, Oisik and Olsson, Richard T. and Hedenqvist, Mikael S. and Johansson, Eva
Title:Acylation of agricultural protein biomass yields biodegradable superabsorbent plastics
Series Name/Journal:Communications Chemistry
Year of publishing :2021
Volume:4
Article number:52
Number of Pages:11
Publisher:NATURE RESEARCH
Language:English
Publication Type:Research 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 > 209 Industrial Biotechnology > Bio Materials
URN:NBN:urn:nbn:se:slu:epsilon-p-111742
Permanent URL:
http://urn.kb.se/resolve?urn=urn:nbn:se:slu:epsilon-p-111742
Additional ID:
Type of IDID
DOI10.1038/s42004-021-00491-5
Web of Science (WoS)000639867600001
ID Code:23431
Faculty:LTV - Fakulteten för landskapsarkitektur, trädgårds- och växtproduktionsvetenskap
Department:(LTJ, LTV) > Department of Plant Breeding (from 130101)
(LTJ, LTV) > Department of Biosystems and Technology (from 130101)
Deposited By: SLUpub Connector
Deposited On:06 May 2021 11:03
Metadata Last Modified:06 May 2021 11:11

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