Antioxidant alpha-tocopherol/gamma-cyclodextrin-inclusion complex encapsulated poly(lactic acid) electrospun nanofibrous web for food packaging

Creative Commons License

Aytac Z., Keskin N. O. S., Tekinay T., UYAR T.

JOURNAL OF APPLIED POLYMER SCIENCE, vol.134, no.21, 2017 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 134 Issue: 21
  • Publication Date: 2017
  • Doi Number: 10.1002/app.44858
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Keywords: fibers, packaging, porous materials, supramolecular structures, BETA-CYCLODEXTRIN, LIPID OXIDATION, RELEASE, FILMS, QUERCETIN, MATS, LIFE, BHT
  • Gazi University Affiliated: Yes


alpha-Tocopherol (alpha-TC) and alpha-TC/cyclodextrin (CD)-inclusion complex (IC) incorporated electrospun poly(lactic acid) (PLA) nanofibers (NF) were developed via electrospinning (PLA/alpha-TC-NF and PLA/alpha-TC/gamma-CD-IC-NF). The release of alpha-TC into 95% ethanol (fatty food simulant) was much greater from PLA/alpha-TC/gamma-CD-IC-NF than from PLA/alpha-TC-NF because of the solubility increase in alpha-TC; this was confirmed by a phase-solubility diagram. 2,2-Diphenyl-1-picrylhydrazyl radical-scavenging assay shows that PLA/alpha-TC-NF and PLA/alpha-TC/gamma-CD-IC-NF had 97% antioxidant activities; this value was expected to be high enough to inhibit lipid oxidation. PLA/alpha-TC-NF and PLA/alpha-TC/gamma-CD-IC-NF were tested directly on beef with the thiobarbituric acid reactive substance (TBARS) method, and the nanofibers displayed a lower TBARS content than the unpackaged meat sample. Thus, active packaging significantly enhanced the oxidative stability of the meat samples at 4 degrees C. In conclusion, PLA/alpha-TC/gamma-CD-IC-NF was shown to be promising as an active food-packaging material for prolonging the shelf life of foods. (C) 2017 Wiley Periodicals, Inc.