Novel Sustainable Superabsorbents: A One-Pot Method for Functionalization of Side-Stream Potato Proteins

Capezza, Antonio JoseSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,KTH,Polymera material,Institutionen för växtförädling,Department of Plant Breeding,Royal Institute of Technology (KTH) (författare)

Novel Sustainable Superabsorbents : A One-Pot Method for Functionalization of Side-Stream Potato Proteins

QC 20191203
The functionalization of inexpensive potato protein concentrate (PPC) is presented as a simple and easily scalable method to produce bio-based superabsorbent powders. Five nontoxic acylating agents were evaluated at different reaction temperatures for solvent-free acylation of the protein. The best results were obtained for succinic anhydride (SA) and a reaction temperature of 140 degrees C. These conditions resulted in efficient functionalization that provided formation of a useful network, which allowed high uptake of fluids and little material disintegration during the uptake, that is, due to protein hydrolysis during the functionalization. The SA-acylated PPC showed increased water and saline swelling capacities of 600 and 60%, respectively, as compared to untreated PPC. The acylated potato protein also showed a saline liquid holding capacity of approximately 50% after centrifugation at 1230 rpm for 3 min, as well as a significant blood swelling capacity of 530%. This blood swelling represents more than 50% of that of a commercial fossil-based superabsorbent (SAP) used for blood absorption in sanitary health products. The swelling properties of these inexpensive protein-based acylated materials highlight their potential as sustainable SAP materials (from industrial side-streams) in applications such as daily care products that are currently dominated by fossil-based SAPs.

Glad, DavidKTH,Polymera material(Swepub:kth)u1ytg6i6 (författare)
Ozeren, Husamettin DenizKTH,Polymera material(Swepub:kth)u1jhig98 (författare)
Newson, WilliamSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtförädling,Department of Plant Breeding(Swepub:slu)49892 (författare)
Olsson, RichardKTH,Polymera material(Swepub:kth)u1ob386f (författare)
Johansson, EvaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtförädling,Department of Plant Breeding(Swepub:slu)50282 (författare)
Hedenqvist, Mikael S.KTH,Polymera material(Swepub:kth)u10rkaxe (författare)
KTHPolymera material (creator_code:org_t)
Sveriges lantbruksuniversitet

Ingår i:ACS Sustainable Chemistry and Engineering: AMER CHEMICAL SOC7:21, s. 17845-178542168-0485

Av författaren/redakt...: Capezza, Antonio ...; Glad, David; Ozeren, Husamett ...; Newson, William; Olsson, Richard; Johansson, Eva; visa fler...; Hedenqvist, Mika ...; visa färre...

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