Antibacterial activity, optical, and functional properties of corn starch-based films impregnated with bamboo leaf volatile oil

Wang B., Yan S., Gao W., Kang X., Yu B., Liu P., ...Daha Fazla

Food Chemistry, cilt.357, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 357
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.foodchem.2021.129743
  • Dergi Adı: Food Chemistry
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, CAB Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, EMBASE, Food Science & Technology Abstracts, MEDLINE, Metadex, Veterinary Science Database, Civil Engineering Abstracts
  • Anahtar Kelimeler: Corn starch-based films, Physico-chemical properties, Essential oil, Solution casting method, Antibacterial effect, Packaging biomaterial, CHEMICAL-COMPOSITION, ANTIMICROBIAL ACTIVITY, BARRIER PROPERTIES, ANTIOXIDANT
  • Atatürk Üniversitesi Adresli: Evet

Özet

© 2021 Elsevier LtdIn this study, the optical, morphological, antibacterial, and physical properties of corn starch-based films prepared by a solution casting method were investigated after adding various levels of bamboo leaf volatile oil (BVO, 0.5, 1, and 2%). Further, the roughness was measured by atomic force microscopy and the antibacterial activities were tested by agar diffusion method. We found that the thickness (TC) and elongation at break (EAB) of the corn starch-based films increased significantly (Duncan's range test, P < 0.05) with the addition of BVO (TC from 0.121 to 0.207 mm; EAB from 2.48 to 10.40%). However, with the addition of BVO, the moisture content (MC) and water-solubility decreased (MC: from 13.12 to 11.41%; water solubility: from 30.58 to 26.95%), and the water vapor permeability (WVP) and tensile strength (TS) decreased significantly (WVP: from 3.91 to 3.05 g m m−2 s−1 Pa−1; TS: from 20.64 to 10.68 MPa, Duncan's range test, P < 0.05). Furthermore, supplementation of BVO to corn starch-based films increased the surface roughness and the antibacterial effects. The addition of BVO also increases the opacity of the films, which is helpful to protect food from ultraviolet damage. In sum, this study provides a theoretical basis for using corn starch-based films as alternative packing biomaterial.