Solid-state photo-cross-linking of cassava starch: improvement properties of thermoplastic starch

  • Amirah Hulwani Mohd Zain
  • Mohamad Kahar Abdul Wahab
  • Hanafi Ismail
Original Paper
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Abstract

Photo-cross-linked thermoplastic cassava starch was prepared using 3% of sodium benzoate. Sodium benzoate was used as photo-initiator which induced cross-linking formation. The thermoplastic cassava starch was irradiated at different irradiation times ranging from 30 to 480 min. Photo-cross-linking kinetics were investigated and found that the cross-linking reaction increased proportionally with an irradiation time up to 120 min. The result of the swelling test and moisture absorption measurement showed improved moisture resistivity and the gel mass fraction. Nevertheless, the tensile strength increased, while the elongation at break and swelling degree reduced by the irradiation time. The carboxylate formation was observed in the FT-IR spectrum from the decomposition of sodium benzoate upon the photo-irradiation. Based on the carboxylate index, it was found that an increase in irradiation time thereby increases the carboxylate formation which correlated to an increase in the gel mass fraction.

Keywords

Sodium benzoate Photo-initiator Photo-cross-linking Irradiation 
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Notes

Acknowledgements

The authors wish to gratefully acknowledge the School of Materials Engineering, as well as Research and Innovation Department under Universiti Malaysia Perlis and Kementerian Pengajian Tinggi Malaysia (FRGS 9003-00601) for supporting this research project.

Supplementary material

289_2017_2209_MOESM1_ESM.docx (23 kb)
Supplementary material 1 (DOCX 22 kb)

References

  1. 1.
    Zhang Y, Rempel C, Liu Q (2014) Thermoplastic starch processing and characteristics—a review. Crit Rev Food Sci Nutr 54(10):1353–1370CrossRefGoogle Scholar
  2. 2.
    Niazi MBK, Zijlistia M, Broekhuis AA (2015) Influence of plasticizer with different functional group on thermoplastic starch. J Appl Polym Sci 132(22):1–12CrossRefGoogle Scholar
  3. 3.
    Detduangchan N, Wittaya T (2011) Effect of UV-treatment on properties of biodegradable film from rice starch. World Acad Sci Eng Technol 5(9):829–834Google Scholar
  4. 4.
    Delville J, Joly C, Dole P, Bliard C (2002) Solid state photocrosslinked starch based films: a new family of homogeneous modified starches. Carbohydr Polym 49(1):71–81CrossRefGoogle Scholar
  5. 5.
    Detduangchan N, Sridach W, Wittaya T (2014) Enhancement of the properties of biodegradable rice starch films by using chemical crosslinking agents. Int Food Res 21(3):1225–1235Google Scholar
  6. 6.
    Han JA, BeMiller JN (2008) Effect of protein on crosslinking of normal maize, waxy maize and potato starches. Carbohydr Polym 73(4):532–540CrossRefGoogle Scholar
  7. 7.
    Zhou J, Zhang J, Ma Y, Tong J (2008) Surface photo-crosslinking of corn starch sheets. Carbohydr Polym 74(3):405–410CrossRefGoogle Scholar
  8. 8.
    Niazi MBK, Broekhuis AA (2015) Surface photo-crosslinking of plasticized thermoplastic starch films. Eur Polym J 64:229–243CrossRefGoogle Scholar
  9. 9.
    Zain AHM, Ab Wahab MK, Noriman NZ (2016) Chemical-mechanical hydrolysis technique of modified thermoplastic starch for better mechanical performance. Proc Chem 19:638–645CrossRefGoogle Scholar
  10. 10.
    Ab Wahab MK, Ismail H, Othman N (2011) Characterization of citric acid-modified tapioca starch and its influence on thermal behavior and water absorption of high density polyethylene/natural rubber/thermoplastic tapioca starch blends. Polym Plast Technol Eng 50:748–753CrossRefGoogle Scholar
  11. 11.
    Ab Wahab MK, Ismail H, Othman N (2011) Morphology and tensile properties of high-density polyethylene/natural rubber/thermoplastic tapioca starch blends: the effect of citric acid-modified tapioca starch. J Appl Polym Sci 125:768–775Google Scholar
  12. 12.
    Nawapat D, Thawien W (2013) Effect of UV-treatment on the properties of biodegradable rice starch films. Int Food Res J 20(3):1313–1322Google Scholar
  13. 13.
    Kumar AP, Singh RP (2008) Biocomposite of cellulose reinforced starch: improvement of properties by photo-induced crosslinking. Biores Technol 99(18):8803–8809CrossRefGoogle Scholar
  14. 14.
    Ma M, Gu J, Yang M, Li Z, Lu Z, Zhang Y, Xing P, Li S, Chu X, Wang Y, Li Q, Lin M, Hao A (2015) Controllable self-assemblies of sodium benzoate in different solvent environments. RCS Adv 5(86):70178–70185Google Scholar
  15. 15.
    Kumar N, Thomas S, Tokas RB, Kshirsagar RJ (2014) Investigation on the adsorption characteristic of sodium benzoate and taurine on gold nanoparticle film by ATR–FTIR spectroscopy. Spectrochim Acta Part A 118:614–618CrossRefGoogle Scholar
  16. 16.
    Khan MA, Bhattacharia SK, Kader MA, Bahari K (2006) Preparation and characterization of ultra violet (UV) radiation cured bio-degradable films of sago starch/PVA blend. Carbohydr Polym 63:500–506CrossRefGoogle Scholar
  17. 17.
    Koo GH, Jang J (2013) Preparation of melting-free poly(lactic acid) by amorphous and crystal crosslinking under UV irradiation. J Appl Polym Sci 127(6):4515–4523CrossRefGoogle Scholar

Copyright information

© Springer-Verlag GmbH Germany 2017

Authors and Affiliations

  • Amirah Hulwani Mohd Zain
    • 1
  • Mohamad Kahar Abdul Wahab
    • 1
  • Hanafi Ismail
    • 2
  1. 1.Polymer Engineering Section, School of Materials EngineeringUniversiti Malaysia Perlis (UniMAP)ArauMalaysia
  2. 2.School of Materials and Mineral Resources EngineeringUniversiti Sains MalaysiaGelugorMalaysia

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