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Protein/Protein Nan...
Protein/Protein Nanocomposite Based on Whey Protein Nanofibrils in a Whey Protein Matrix
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- Ye, Xinchen (författare)
- KTH,Polymera material,KTH Royal Institute of Technology, Sweden
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- Junel, Kristina (författare)
- RISE,Papperstillverkning och förpackningar,Massa, papper och förpackningar,RISE Bioecon Innventia AB, Drottning Kristinas Vag 61, SE-11486 Stockholm, Sweden.
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- Gällstedt, Mikael (författare)
- SIG Combibloc, Vasagatan 7, SE-11120 Stockholm, Sweden.
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- Langton, Maud (författare)
- Swedish University of Agricultural Sciences,Sveriges lantbruksuniversitet,Institutionen för Molekylära vetenskaper,Department of Molecular Sciences
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- Wei, Xin-Feng (författare)
- KTH,Polymera material,KTH Royal Institute of Sweden, Sweden
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- Lendel, Christofer (författare)
- KTH,Tillämpad fysikalisk kemi,KTH Royal Institute of Sweden, Sweden,Royal Institute of Technology (KTH)
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- Hedenqvist, Mikael S. (författare)
- KTH,Polymera material,KTH Royal Institute of Sweden, Sweden
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(creator_code:org_t)
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- 2018-03-15
- 2018
- Engelska.
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Ingår i: ACS Sustainable Chemistry and Engineering. - : American Chemical Society (ACS). - 2168-0485. ; 6:4, s. 5462-5469
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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https://urn.kb.se/re...
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https://res.slu.se/i...
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Abstract
Ämnesord
Stäng
- This article describes nanocomposite films with separately grown protein nanofibrils (PNFs) in a nonfibrillar protein matrix from the same protein starting material (whey). Tensile tests on the glycerol-plasticized films indicate an increased elastic modulus and a decreased extensibility with increasing content of PNFs, although the films are still ductile at the maximum PNF content (15 wt %). Infrared spectroscopy confirms that the strongly hydrogen-bonded beta-sheets in the PNFs are retained in the composites. The films appear with a PNF-induced undulated upper surface. It is shown that micrometer-scale spatial variations in the glycerol distribution are not the cause of these undulations. Instead, the undulations seem to be a feature of the PNF material itself. It was also shown that, apart from plasticizing the protein film, the presence of glycerol seemed to favor to some extent exfoliation of stacked beta-sheets in the proteins, as revealed by X-ray diffraction.
Ämnesord
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Kemiteknik -- Polymerteknologi (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Chemical Engineering -- Polymer Technologies (hsv//eng)
- TEKNIK OCH TEKNOLOGIER -- Nanoteknik -- Nanoteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Nano-technology -- Nano-technology (hsv//eng)
Nyckelord
- Protein fibrils
- Whey
- Nanocomposite
- Protein structure
- Mechanical properties
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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