Alkenyl succinic anhydride modified tree-gum kondagogu: A bio-based material with potential for food packaging
Language English Country England, Great Britain Media print-electronic
Document type Journal Article
PubMed
34044942
DOI
10.1016/j.carbpol.2021.118126
PII: S0144-8617(21)00513-0
Knihovny.cz E-resources
- Keywords
- Biodegradable, Bioplastics, DDSA modification, Food packaging films, Gum Kondagogu,
- MeSH
- Alkenes chemical synthesis chemistry pharmacology MeSH
- Succinic Anhydrides chemistry MeSH
- Anti-Bacterial Agents chemical synthesis chemistry pharmacology MeSH
- Biodegradable Plastics chemical synthesis chemistry pharmacology MeSH
- Bixaceae chemistry MeSH
- Escherichia coli drug effects MeSH
- Hydrophobic and Hydrophilic Interactions MeSH
- Elastic Modulus MeSH
- Food Packaging * MeSH
- Tensile Strength MeSH
- Plant Gums chemical synthesis chemistry pharmacology MeSH
- Staphylococcus aureus drug effects MeSH
- Materials Testing MeSH
- Publication type
- Journal Article MeSH
- Names of Substances
- Alkenes MeSH
- Succinic Anhydrides MeSH
- Anti-Bacterial Agents MeSH
- Biodegradable Plastics MeSH
- Plant Gums MeSH
Tree gums are a class of abundantly available carbohydrate polymers that have not been explored thoroughly in film fabrication for food packaging. Films obtained from pristine tree gums are often brittle, hygroscopic, and lack mechanical strength. This study focuses on the chemical modification of gum kondagogu using long-chain alkenyl groups of dodecenyl succinic anhydride (DDSA), an esterifying agent that introduces a 12-carbon hydrophobic chain to the kondagogu structure. The esterification reaction was confirmed by 1H nuclear magnetic resonance and Fourier-transform infrared spectroscopy. The effect of nano-cellulose as an additive on various film properties was investigated. The developed films were characterized for their mechanical, morphological, optical, barrier, antibacterial, and biodegradable properties. The inclusion of long-chain carbon groups acted as internal plasticizers and resulted in an amorphous structure with better film-forming ability, improved hydrophobicity, and higher elongation at break values. The modified films exhibited antibacterial properties and excellent biodegradability under aerobic conditions.
Inorganic Chemistry 1 University of Bayreuth Universittsstraße 30 95447 Bayreuth Germany
Macromolecular Chemistry 2 University of Bayreuth Universittsstraße 30 95447 Bayreuth Germany
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