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Development of antimicrobial packaging materials by incorporation of gallic acid into Ca2+ crosslinking konjac glucomannan/gellan gum films.
Int J Biol Macromol. 2019 Sep 15; 137:1076-1085.IJ

Abstract

Antibacterial films were prepared by incorporating konjac glucomannan (KGM) and gellan gum (GG) as a matrix, glycerin as a plasticizer, CaCl2 as a cross-linking agent, and gallic acid as a natural antibacterial agent. Structure was analyzed by using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Thermal stability of the blends was higher than pure GG, due to Ca2+ crosslinking between GG and KGM. Water contact angle and water vapor permeability were analyzed to determine hydrophobicity of films. Morphological studies revealed that surface compactness and homogeneity of blended films increased with KGM content. The addition of KGM improved the mechanical strength of films significantly. Moreover, KGM improved the release capacity of the blended films, while enhancing antimicrobial activity against Escherichia coli and Staphylococcus aureus. The antioxidant properties of gallic acid embedded in films were measured. Composite films containing 70 wt% KGM (Ca-KG7) displayed the best properties. These findings suggest an alternative method for synthesis of GG-based packaging films with improved properties.

Authors+Show Affiliations

College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China.Harvard John A. Paulson School of Engineering and Applied Sciences, Harvard University, 29 Oxford Street Cambridge, MA 02138, USA. Electronic address: muruojun@gmail.com.College of Food Science, Fujian Agriculture and Forestry University, Fuzhou 350002, China. Electronic address: pang3721941@163.com.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31226371

Citation

Du, Yu, et al. "Development of Antimicrobial Packaging Materials By Incorporation of Gallic Acid Into Ca2+ Crosslinking Konjac Glucomannan/gellan Gum Films." International Journal of Biological Macromolecules, vol. 137, 2019, pp. 1076-1085.
Du Y, Sun J, Wang L, et al. Development of antimicrobial packaging materials by incorporation of gallic acid into Ca2+ crosslinking konjac glucomannan/gellan gum films. Int J Biol Macromol. 2019;137:1076-1085.
Du, Y., Sun, J., Wang, L., Wu, C., Gong, J., Lin, L., Mu, R., & Pang, J. (2019). Development of antimicrobial packaging materials by incorporation of gallic acid into Ca2+ crosslinking konjac glucomannan/gellan gum films. International Journal of Biological Macromolecules, 137, 1076-1085. https://doi.org/10.1016/j.ijbiomac.2019.06.079
Du Y, et al. Development of Antimicrobial Packaging Materials By Incorporation of Gallic Acid Into Ca2+ Crosslinking Konjac Glucomannan/gellan Gum Films. Int J Biol Macromol. 2019 Sep 15;137:1076-1085. PubMed PMID: 31226371.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Development of antimicrobial packaging materials by incorporation of gallic acid into Ca2+ crosslinking konjac glucomannan/gellan gum films. AU - Du,Yu, AU - Sun,Jishuai, AU - Wang,Lin, AU - Wu,Chunhua, AU - Gong,Jingni, AU - Lin,Lishan, AU - Mu,Ruojun, AU - Pang,Jie, Y1 - 2019/06/19/ PY - 2019/01/23/received PY - 2019/06/01/revised PY - 2019/06/11/accepted PY - 2019/6/22/pubmed PY - 2020/2/6/medline PY - 2019/6/22/entrez KW - Antimicrobial package film KW - Gellan gum KW - Konjac glucomannan SP - 1076 EP - 1085 JF - International journal of biological macromolecules JO - Int J Biol Macromol VL - 137 N2 - Antibacterial films were prepared by incorporating konjac glucomannan (KGM) and gellan gum (GG) as a matrix, glycerin as a plasticizer, CaCl2 as a cross-linking agent, and gallic acid as a natural antibacterial agent. Structure was analyzed by using Fourier transform infrared spectroscopy (FTIR) and X-ray diffraction (XRD). Thermal stability of the blends was higher than pure GG, due to Ca2+ crosslinking between GG and KGM. Water contact angle and water vapor permeability were analyzed to determine hydrophobicity of films. Morphological studies revealed that surface compactness and homogeneity of blended films increased with KGM content. The addition of KGM improved the mechanical strength of films significantly. Moreover, KGM improved the release capacity of the blended films, while enhancing antimicrobial activity against Escherichia coli and Staphylococcus aureus. The antioxidant properties of gallic acid embedded in films were measured. Composite films containing 70 wt% KGM (Ca-KG7) displayed the best properties. These findings suggest an alternative method for synthesis of GG-based packaging films with improved properties. SN - 1879-0003 UR - https://www.unboundmedicine.com/medline/citation/31226371/Development_of_antimicrobial_packaging_materials_by_incorporation_of_gallic_acid_into_Ca2+_crosslinking_konjac_glucomannan/gellan_gum_films_ L2 - https://linkinghub.elsevier.com/retrieve/pii/S0141-8130(19)30585-9 DB - PRIME DP - Unbound Medicine ER -