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Sodium alginate/carboxymethyl cellulose films containing pyrogallic acid: physical and antibacterial properties.
J Sci Food Agric. 2017 Mar; 97(4):1295-1301.JS

Abstract

BACKGROUND

Antibacterial films were prepared using sodium alginate (SA) and carboxymethyl cellulose (CMC) as a matrix, glycerin as a plasticizer and CaCl2 as a cross-linking agent, and by incorporating the natural antibacterial agent pyrogallic acid (PA). The present study describes the microstructure and the physical, barrier, mechanical, optical and antibacterial properties of blended films prepared by incorporating different concentrations of PA into the SA/CMC matrix.

RESULTS

The microstructure of the films was investigated by Fourier transform infrared spectroscopy and scanning electron microscopy, which revealed that PA interacts with the SA/CMC matrix through hydrogen bonding. Moreover, the incorporation of PA increased the moisture content, water vapor permeability and oxygen permeability of SA/CMC films. Films containing 40 g kg-1 of PA had the highest elongation at break result (39.60%). Compared with pure SA/CMC films, the incorporation of PA improved the barrier properties against ultraviolet light; however, it decreased the color parameter L* value and increased the a* and b* values of the films. Furthermore, films with PA, especially at higher concentrations, were more effective against Escherichia coli and Staphylococcus aureus.

CONCLUSION

Antibacterial SA/CMC films incorporating PA appear to have good potential to enhance the safety of foods and food products. © 2016 Society of Chemical Industry.

Authors+Show Affiliations

Key Laboratory of Bio-based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, PR China.Key Laboratory of Bio-based Materials Science and Technology of Ministry of Education, Northeast Forestry University, 26 Hexing Road, Harbin 150040, PR China.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

27328858

Citation

Han, Yingying, and Lijuan Wang. "Sodium Alginate/carboxymethyl Cellulose Films Containing Pyrogallic Acid: Physical and Antibacterial Properties." Journal of the Science of Food and Agriculture, vol. 97, no. 4, 2017, pp. 1295-1301.
Han Y, Wang L. Sodium alginate/carboxymethyl cellulose films containing pyrogallic acid: physical and antibacterial properties. J Sci Food Agric. 2017;97(4):1295-1301.
Han, Y., & Wang, L. (2017). Sodium alginate/carboxymethyl cellulose films containing pyrogallic acid: physical and antibacterial properties. Journal of the Science of Food and Agriculture, 97(4), 1295-1301. https://doi.org/10.1002/jsfa.7863
Han Y, Wang L. Sodium Alginate/carboxymethyl Cellulose Films Containing Pyrogallic Acid: Physical and Antibacterial Properties. J Sci Food Agric. 2017;97(4):1295-1301. PubMed PMID: 27328858.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Sodium alginate/carboxymethyl cellulose films containing pyrogallic acid: physical and antibacterial properties. AU - Han,Yingying, AU - Wang,Lijuan, Y1 - 2016/07/25/ PY - 2016/01/22/received PY - 2016/06/04/revised PY - 2016/06/16/accepted PY - 2016/6/23/pubmed PY - 2017/7/1/medline PY - 2016/6/23/entrez KW - antibacterial films KW - carboxymethyl cellulose KW - pyrogallic acid KW - sodium alginate SP - 1295 EP - 1301 JF - Journal of the science of food and agriculture JO - J Sci Food Agric VL - 97 IS - 4 N2 - BACKGROUND: Antibacterial films were prepared using sodium alginate (SA) and carboxymethyl cellulose (CMC) as a matrix, glycerin as a plasticizer and CaCl2 as a cross-linking agent, and by incorporating the natural antibacterial agent pyrogallic acid (PA). The present study describes the microstructure and the physical, barrier, mechanical, optical and antibacterial properties of blended films prepared by incorporating different concentrations of PA into the SA/CMC matrix. RESULTS: The microstructure of the films was investigated by Fourier transform infrared spectroscopy and scanning electron microscopy, which revealed that PA interacts with the SA/CMC matrix through hydrogen bonding. Moreover, the incorporation of PA increased the moisture content, water vapor permeability and oxygen permeability of SA/CMC films. Films containing 40 g kg-1 of PA had the highest elongation at break result (39.60%). Compared with pure SA/CMC films, the incorporation of PA improved the barrier properties against ultraviolet light; however, it decreased the color parameter L* value and increased the a* and b* values of the films. Furthermore, films with PA, especially at higher concentrations, were more effective against Escherichia coli and Staphylococcus aureus. CONCLUSION: Antibacterial SA/CMC films incorporating PA appear to have good potential to enhance the safety of foods and food products. © 2016 Society of Chemical Industry. SN - 1097-0010 UR - https://www.unboundmedicine.com/medline/citation/27328858/Sodium_alginate/carboxymethyl_cellulose_films_containing_pyrogallic_acid:_physical_and_antibacterial_properties_ L2 - https://doi.org/10.1002/jsfa.7863 DB - PRIME DP - Unbound Medicine ER -