• Title/Summary/Keyword: 경쟁력 지표

Search Result 271, Processing Time 0.018 seconds

Preservation of Strawberries and Cucumbers Packaged by Low density polyethylene film impregnated with antimicmbial agent, Scutellariae baicalensis extract (황금추출물을 함유한 항균성 포장필름을 이용한 딸기와 오이의 저장효과)

  • 정순경;조성환
    • Food Science and Preservation
    • /
    • v.9 no.3
    • /
    • pp.271-276
    • /
    • 2002
  • To develop a wrapping film, which suppresses the microbial decay through the storage and prolongs the selflife of fruits and vegetables, the antimicrobial packaging films were prepared and applied to the preservation of strtwberries and cucumbers. Low density polyethylene(LDPE) film of 50㎛ thickness was faricated with 1% of Scutellariae baicalensis extract. The LDPE film impregnated with Scutellariae baicalensis extract showed antimicrobial activity on the disk test against Bacillus cereus, Escherchia coli and Fusarium sp.. The antimicrobial film changed the color and light transmittance, but did not affect heat shrinkage, mechanical tensile strength and wattability. Strawberries and cucumbers were separately wrapped with packaging films in the state of closely-adhered packaging as well as modified atmosphere packaging(MAP). The wrapped strawberries and cucumbers were stored for 21 days at 5$\^{C}$ and for 40 days at l0$\^{C}$, respectively. For the packaged strawberries and cucumbers at 5$\^{C}$ and 10$\^{C}$, the LDPE film impregnated with Scutellariae baicalensis extract showed the reduced growth of total aerobic bacteria, molds and yeasts and did not give any negative effect on other quality attributes during storage in comparison with conttrol film without any additive.