Acylation of agricultural protein biomass yields biodegradable superabsorbent plastics

Capezza, Antonio JoseSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,KTH,Polymera material,Fibre and Polymer Technology Department, KTH Royal Institute of Technology, Stockholm, Sweden; Plant Breeding Department, SLU Alnarp, Lomma, Sweden,Institutionen för växtförädling,Department of Plant Breeding,Royal Institute of Technology (KTH) (author)

Validerad;2021;Nivå 2;2021-05-04 (johcin)
QC 20210507
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.

Muneer, FarazSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtförädling,Department of Plant Breeding(Swepub:slu)96474 (author)
Prade, ThomasSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Biosystem och teknologi,Department of Biosystems and Technology(Swepub:slu)50668 (author)
Newson, WilliamSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtförädling,Department of Plant Breeding(Swepub:slu)49892 (author)
Das, OisikLuleå tekniska universitet,Byggkonstruktion och brand,Luleå Univ Technol, Struct & Fire Engn Div, Dept Civil Environm & Nat Resources Engn, Luleå, Sweden.(Swepub:ltu)oisdas (author)
Lundman, MalinEssity Hygiene and Health AB, Gothenburg, Sweden,Essity Hyg & Hlth AB, Gothenburg, Sweden. (author)
Olsson, Richard T.KTH,Polymera material,Fibre and Polymer Technology Department, KTH Royal Institute of Technology, Stockholm, Sweden(Swepub:kth)u1ob386f (author)
Hedenqvist, Mikael S.KTH,Polymera material,Fibre and Polymer Technology Department, KTH Royal Institute of Technology, Stockholm, Sweden(Swepub:kth)u10rkaxe (author)
Johansson, EvaSwedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för växtförädling,Department of Plant Breeding(Swepub:slu)50282 (author)
KTHPolymera material (creator_code:org_t)
Sveriges lantbruksuniversitet

By the author/editor: Capezza, Antonio ...; Muneer, Faraz; Prade, Thomas; Newson, William; Das, Oisik; Lundman, Malin; show more...; Olsson, Richard ...; Hedenqvist, Mika ...; Johansson, Eva; show less...

About the subject

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Chemical Enginee ...; and Polymer Technolo ...

ENGINEERING AND TECHNOLOGY: ENGINEERING AND ...; and Industrial Biote ...; and Bio Materials

By the university: Luleå University of Technology; Royal Institute of Technology; Swedish University of Agricultural Sciences

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