Food Science of Animal Resources (한국축산식품학회지)

Korean Society for Food Science of Animal Resources (한국축산식품학회)
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Antimicrobial Activity of a Gelidium corneum - Gelatin Blend Film Containing Fermented Pollen Extract and Its Application in the Packaging of Pork Loins

화분발효물을 함유한 Gelidium corneum - 젤라틴 혼합필름의 항균활성과 돈육의 포장재 적용

  • Hong, Yun-Hee (Department of Food Science and Technology, Chungnam National University) ;
  • Lim, Geum-Ok (Department of Food Science and Technology, Chungnam National University) ;
  • Song, Kyung-Bin (Department of Food Science and Technology, Chungnam National University)
  • Published : 2009.06.30
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Abstract

Gelidium corneum - gelatin (GCG) blend films containing fermented pollen extract (FPE) were prepared and used as a packaging material of pork loins. Water vapor permeability (WVP) of the film containing FPE was better than the control film, and the film's antimicrobial activity against Escherichia coli O157:H7 and Listeria monocytogenes increased with increasing FPE concentration. Addition of 0.15% FPE decreased the populations of Escherichia coli O157:H7 and Listeria monocytogenes by 2.98 and 3.68 Log CFU/g, respectively, compared to the control. Pork loin samples were inoculated with E. coli O157:H7 and L. monocytogenes and packed with the film. The samples packed with the GCG film containing 0.15% FPE had a decrease in the populations of E. coli O157:H7 and L. monocytogenes by 1.49 and 1.01 Log CFU/g after 4 d of storage, respectively, compared to the control. The results suggested that shelf life of the pork loins could be extended by packaging with the GCG film containing 0.15% FPE.

화분발효물(FPE)을 함유하는 Gelidium corneum - 젤라틴(GCG) 필름을 제조하여 돈육의 포장재로 사용하였다. FPE를 첨가한 GCG필름의 투습계수는 대조구 필름 보다 향상되었고 FPE 첨가 농도가 증가함에 따라 Escherichia coli O157:H7와 Listeria monocytogenes에 대한 항균효과는 증가하였다. 특히, 0.15% FPE 첨가는 E. coli O157:H7와 L. monocytogenes에 대해 대조구 대비 각각 2.98 and 3.68 Log CFU/g 감소시켰다. 또한 돈육 시료를 E. coli O157:H7 와 L. monocytogenes로 접종시킨 후 GCG 필름으로 포장한 후 저장 중 미생물 수의 변화를 측정한 결과, 0.15% 화분발효물이 첨가한 GCG 필름으로 포장 시 E. coli O157:H7와 L. monocytogenes 숫자가 저장 4일 후 대조구 대비 각각 1.49, 1.01 Log CFU/g 더 감소시켰다. 이러한 연구 결과는 0.15% 화분발효물이 첨가한 GCG 필름으로 포장한 돈육의 유통기한이 증대될 수 있음을 시사한다.

Keywords

References

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