Formation of protein complex with the aid of polyethylene glycol for deproteinized natural rubber latex

Lim Keuw Wei, Wong Kwee Ing, Khairiah Badri, Wong Chong Ban

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

The effect of polyethylene glycol (PEG) as a deproteinizing agent in commercial natural rubber latex (NRL) onto the physicochemical properties of the NRL was investigated. Three types of PEG were used namely PEG200, PEG4000 and PEG20000 (molecular weight of 200, 4000 and 20000 g/mol respectively). The optimum amount of PEG in NRL was determined from viscosity changes, protein content and Fourier Transform Infrared spectroscopy. Level of protein reduction was affected by molecular weight of PEG. The addition of PEG in NRL reduced the protein content of NRL (3.30 %) to the lowest (2.01 %) at 0.40 phr of PEG200 due to more attractive hydrophobic interactions between short chains PEG compared to PEG4000 (2.24%) and PEG20000 (2.15%). This was verified through FTIR spectroscopy analysis by observing the primary and secondary amide peak where PEG4000 has lesser absorption at the region compared to with PEG20000.

Original languageEnglish
Title of host publicationAIP Conference Proceedings
Pages871-876
Number of pages6
Volume1571
DOIs
Publication statusPublished - 2013
Event2013 UKM Faculty of Science and Technology Post-Graduate Colloquium - Selangor
Duration: 3 Jul 20134 Jul 2013

Other

Other2013 UKM Faculty of Science and Technology Post-Graduate Colloquium
CitySelangor
Period3/7/134/7/13

Fingerprint

latex
rubber
glycols
polyethylenes
proteins
molecular weight
amides
infrared spectroscopy
viscosity
spectroscopy
interactions

Keywords

  • Natural rubber latex
  • Polyethylene glycol

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Wei, L. K., Ing, W. K., Badri, K., & Ban, W. C. (2013). Formation of protein complex with the aid of polyethylene glycol for deproteinized natural rubber latex. In AIP Conference Proceedings (Vol. 1571, pp. 871-876) https://doi.org/10.1063/1.4858764

Formation of protein complex with the aid of polyethylene glycol for deproteinized natural rubber latex. / Wei, Lim Keuw; Ing, Wong Kwee; Badri, Khairiah; Ban, Wong Chong.

AIP Conference Proceedings. Vol. 1571 2013. p. 871-876.

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Wei, LK, Ing, WK, Badri, K & Ban, WC 2013, Formation of protein complex with the aid of polyethylene glycol for deproteinized natural rubber latex. in AIP Conference Proceedings. vol. 1571, pp. 871-876, 2013 UKM Faculty of Science and Technology Post-Graduate Colloquium, Selangor, 3/7/13. https://doi.org/10.1063/1.4858764
Wei, Lim Keuw ; Ing, Wong Kwee ; Badri, Khairiah ; Ban, Wong Chong. / Formation of protein complex with the aid of polyethylene glycol for deproteinized natural rubber latex. AIP Conference Proceedings. Vol. 1571 2013. pp. 871-876
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