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Journal of Thermal Analysis and Calorimetry

, Volume 98, Issue 1, pp 299–307 | Cite as

Thermal study and solubility tests of films based on amaranth flour starch–protein hydrolysate

  • P. MokrejsEmail author
  • F. Langmaier
  • D. Janacova
  • M. Mladek
  • K. Kolomaznik
  • V. Vasek
Article

Abstract

The study deals with the effect of chemical and physical modifications on thermal properties and solubility properties of films based on amaranth flour starch–protein hydrolysate. Biodegradable and edible films were prepared by casting a 25% (w/w) solution of hydrolysate containing 20% glycerol and various additions of dialdehyde starch (0, 1 and 5%). After thermal exposure of films at 65 and 95 °C (for 6 and 48 h), thermal properties of films were studied employing differential scanning calorimetry and thermogravimetric analysis. Film solubility tests were performed in an aqueous environment at 25 °C. Chemical and physical modifications of films markedly affect their thermal properties and solubility.

Keywords

Amaranth flour Biodegradable films Dialdehyde starch DSC Hydrolysate Solubility test TGA Thermal exposure 

Notes

Acknowledgments

The authors would like to thank to Ministry of Education of The Czech Republic for financial support to this work executed under MSM Grant No. 7088352102.

References

  1. 1.
    Gennadios A, Hanna MA, Kurth LB. Application of edible coating on meats, poultry and seafoods: a review. Leb Wiss Technol. 1997;30:337–50.CrossRefGoogle Scholar
  2. 2.
    Domb AJ, Kost J, Wiseman DM. Handbook of biodegradable polymers. Boca Raton: CRC Press; 1997. p. 307–18.Google Scholar
  3. 3.
    Smith R. Biodegradable polymers for industrial applications. Boca Raton: CRC Press; 2005. p. 4–21.Google Scholar
  4. 4.
    Bastioli K. Global status of the production of biobased packaging materials. Starch 2001;53:351–5.CrossRefGoogle Scholar
  5. 5.
    Cha DS, Chinnan MS. Biopolymer-based antimicrobial packaging: a review. Crit Rev Food Sci Nutr. 2004;44:223–37.CrossRefGoogle Scholar
  6. 6.
    Ching Ch, Kaplan D, Thomas EL. Biodegradable polymers and packaging. Lancaster: Technomic Publishing; 1993. p. 359.Google Scholar
  7. 7.
    Gennadios A. Protein-based films and coatings. Boca Raton: CRC Press; 2002. p. 4.Google Scholar
  8. 8.
    de Carvalho RA, Grosso CRF. Characterization of gelatin based films modified with transglutaminase, glyoxal and formaldehyde. Food Hydrocolloids. 2004;18:717–26.CrossRefGoogle Scholar
  9. 9.
    Rhim JW, Lee JH, Ng PKW. Mechanical and barrier properties of biodegradable soy protein isolate-based films coated with polylactic acid. LWT-Food Sci Technol. 2007;40:232–38.CrossRefGoogle Scholar
  10. 10.
    Arvanitoyannis IS, Nakayama A, Aiba S. Chitosan and gelatin based edible films: state diagrams, mechanical and permeation properties. Carbohydr Polym. 1998;37:371–82.CrossRefGoogle Scholar
  11. 11.
    Bigi A, Cojazzi G, Panzavolta S, Rubini K, Roveri N. Mechanical and thermal properties of gelatin films at different degrees of glutaraldehyde crosslinking. Biomaterials. 2001;22:763–8.CrossRefGoogle Scholar
  12. 12.
    Bigi A, Borghi M, Cojazzi G, Fichera AM, Panzavolta S, Roveri N. Structural and mechanical properties of crosslinked drawn gelatin films. J Therm Anal Calorim. 2000;61:451–9.CrossRefGoogle Scholar
  13. 13.
    Waszkowiak K, Dolata W. The application of collagen preparations as carriers of rosemary extract in the production of processed meat. Meat Sci. 2007;75:178–83.CrossRefGoogle Scholar
  14. 14.
    Park HJ. Development of advanced edible coatings for fruits. Trends Food Sci Technol. 1999;10:254–60.CrossRefGoogle Scholar
  15. 15.
    Garcia MA, Martino MN, Zaritzky NE. Starch-based coatings: effect on refrigerated strawberry (Fragaria ananassa) quality. J Sci Food Agric. 1998;76:411–20.CrossRefGoogle Scholar
  16. 16.
    Charalambous G. Shelf life studies of foods and beverages. Amsterdam: Elsevier; 1993. p. 195–216.Google Scholar
  17. 17.
    Aminlari M, Ramezani R, Khalili MH. Production of protein-coated low-fat potato chips. Food Sci Technol Int. 2005;11:177–81.CrossRefGoogle Scholar
  18. 18.
    Balasubramaniam VM, Chinnan MS, Mallikarjunan P, Phillips RD. The effect of edible film on oil uptake and moisture retention of a deep-fat fried poultry product. J Food Process Eng. 1997;20:17–29.CrossRefGoogle Scholar
  19. 19.
    Briassoulis D. An overview on the mechanical behaviour of biodegradable agricultural films. J Polym Environ. 2004;12:65–81.CrossRefGoogle Scholar
  20. 20.
    Scilingo AA, Ortiz SEM, Martinez EN, Anon MC. Amaranth protein isolates modified by hydrolytic and thermal treatments-relationship between structure and solubility. Food Res Int. 2002;35:855–62.CrossRefGoogle Scholar
  21. 21.
    Becker RA. A compositional study of amaranth grain. J Food Sci. 1981;46:1175–80.CrossRefGoogle Scholar
  22. 22.
    Kelly GS. Squalene and its potential clinical uses. Altern Med Rev. 1999;4:29–36.Google Scholar
  23. 23.
    Berger A, Monnard I, Dionisi F, Gumy D, Hayes KC, Lambelet P. Cholesterol-lowering properties of amaranth flakes, crude and refined oils in hamsters. Food Chem. 2003;81:119–24.CrossRefGoogle Scholar
  24. 24.
    Paredes-Lopez O, Mendoza V, Mora R. Isolation of amaranth flour proteins by fractionation procedures and sonication. Plant Food Hum Nutr. 1993;42:37–43.CrossRefGoogle Scholar
  25. 25.
    Bressani R. The proteins of grain amaranth. Food Rev Int. 1989;5:13–38.CrossRefGoogle Scholar
  26. 26.
    Tunc S, Angellier H, Cahyana Y, Chalier P, Gontard N, Gastaldi E. Functional properties of wheat gluten/montmorillonite nanocomposite films processed by casting. J Memb Sci. 2007;289:159–68.CrossRefGoogle Scholar
  27. 27.
    Liu X, Yu L, Liu H, Chen L, Li L. In situ thermal decomposition of starch with constant moisture in a sealed system. Polym Degrad Stabil. 2008;93:260–2.CrossRefGoogle Scholar
  28. 28.
    Rueda DR, Secall T, Bayer RK. Differences in the interaction of water with starch and chitosan films as revealed by infrared spectroscopy and differential scanning calorimetry. Carbohyd Polym. 1999;40:49–56.CrossRefGoogle Scholar
  29. 29.
    Langmaier F, Mladek M, Mokrejs P, Kolomaznik K. Biodegradable packing materials based on waste collagen hydrolysate cured with dialdehyde starch. J Therm Anal Calorim. 2008;93:547–52.CrossRefGoogle Scholar

Copyright information

© Akadémiai Kiadó, Budapest, Hungary 2009

Authors and Affiliations

  • P. Mokrejs
    • 1
    Email author
  • F. Langmaier
    • 1
  • D. Janacova
    • 2
  • M. Mladek
    • 1
  • K. Kolomaznik
    • 2
  • V. Vasek
    • 2
  1. 1.Department of Polymeric Engineering, Faculty of TechnologyTomas Bata UniversityZlinThe Czech Republic
  2. 2.Institute of Processing Control and Applied Computer Science, Faculty of Applied InformaticsTomas Bata UniversityZlinThe Czech Republic

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