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Bionanocomposite films based on polysaccharides from banana peels.
Oliveira, Túlio Ítalo S; Rosa, Morsyleide F; Ridout, Michael J; Cross, Kathryn; Brito, Edy S; Silva, Lorena M A; Mazzetto, Selma E; Waldron, Keith W; Azeredo, Henriette M C.
Affiliation
  • Oliveira TÍS; Federal University of Ceara, Organic and Inorganic Chemistry Department, Campus Pici, 60440-900, Fortaleza, CE, Brazil.
  • Rosa MF; Embrapa Tropical Agroindustry, R. Dra. Sara Mesquita, 2270, Pici, 60511-110, Fortaleza, CE, Brazil.
  • Ridout MJ; Institute of Food Research, Norwich Research Park, Colney, Norwich, NR4 7UA, UK.
  • Cross K; Institute of Food Research, Norwich Research Park, Colney, Norwich, NR4 7UA, UK.
  • Brito ES; Embrapa Tropical Agroindustry, R. Dra. Sara Mesquita, 2270, Pici, 60511-110, Fortaleza, CE, Brazil.
  • Silva LMA; Embrapa Tropical Agroindustry, R. Dra. Sara Mesquita, 2270, Pici, 60511-110, Fortaleza, CE, Brazil.
  • Mazzetto SE; Federal University of Ceara, Organic and Inorganic Chemistry Department, Campus Pici, 60440-900, Fortaleza, CE, Brazil.
  • Waldron KW; Institute of Food Research, Norwich Research Park, Colney, Norwich, NR4 7UA, UK.
  • Azeredo HMC; Embrapa Tropical Agroindustry, R. Dra. Sara Mesquita, 2270, Pici, 60511-110, Fortaleza, CE, Brazil. Electronic address: henriette.azeredo@embrapa.br.
Int J Biol Macromol ; 101: 1-8, 2017 Aug.
Article in En | MEDLINE | ID: mdl-28315762
ABSTRACT
Pectin and cellulose nanocrystals (CNCs) isolated from banana peels were used to prepare films. The effects of a reinforcing phase (CNCs) and a crosslinker (citric acid, CA) on properties of pectin films were studied. Glycerol-plasticized films were prepared by casting, with different CNC contents (0-10wt%), with or without CA. Overall tensile properties were improved by intermediate CNC contents (around 5wt%). The water resistance and water vapor barrier properties were also enhanced by CNC. Evidences were found from Fourier Transform Infrared (FTIR) spectra supporting the occurrence of crosslinking by CA. Additionally, the tensile strength, water resistance and barrier to water vapor were improved by the presence of CA. The 13C ssNMR spectra indicated that both CA and CNC promoted stiffening of the polymer chains.
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Pectins / Musa / Nanocomposites Language: En Journal: Int J Biol Macromol Year: 2017 Document type: Article Affiliation country:
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Full text: 1 Collection: 01-internacional Database: MEDLINE Main subject: Pectins / Musa / Nanocomposites Language: En Journal: Int J Biol Macromol Year: 2017 Document type: Article Affiliation country: