The purpose of this study was to investigate the antibacterial effect of films on shelf-life and microbiological Safety of pork meat. Effects of antimicrobial films against total aerobic bacteria, Escherichia coli O157:H7, Listeria monocytogenes, Salmonella Typhimurium, Staphylococcus aureus in pork meat were evaluated during storage of 14 days at 5℃, 10℃ and 15℃. Antimicrobial films were developed with addition of a natural substance, wasabi extracts (Wasabia japonica). At 5℃ storage, growth of total aerobic bacteria, E. coli O157:H7, L. monocytogenes were inhibited higher than at 10 and 15℃. Especially, the numbers of S. Typhimurium and S. aureus were increased gradually at 5℃ even in the control sample, and it takes more than 14 days to increase in every sample upto 6 log10 cfu/g. The higher antimicrobial effects of the films were observed at storage of 5℃ than at 10oC and 15℃. There was a limit of a single treatment of antimicrobial film to prolong shelf-life of pork meat. The synergistic effect of antimicrobial film were observed with addition of refrigeration at 5℃.

식품의 저장성 및 안전성 향상을 목적으로 필름이나 용기형태의 항균 기능성 포장재를 개발하고자 하는 노력이 지속되고 있으며, 아울러 새로운 고분자 및 항균 소재 탐색에 대한 연구도 활발히 진행되고 있다. 이와 관련하여 기존의 합성 고분자뿐만 아니라 생고분자에 각종 항균제를 첨가 또는 혼입하여 제조한 식품 포장용 항균성 필름이 최근 들어 주목받고 있는데, 이러한 항균성 필름은 담체로 사용된 고분자는 물론 항균제의 종류, 이들의 상호작용에 따라 항균효

풋고추를 수확하여 선도를 유지할 수 있도록 하기 위하여 천연항균소재를 이용한 항균용제와 항균포장필름에 대한 각각의 효과와 두 가지를 병행한 상승효과를 확인하기 위하여 풋고추를 항균용제에 침지 처리후 1에 저장하면서 품질변화를 측정하였다. 그 결과 항균용제와 항균포장필름에 대한 각각의 효과뿐만 아니라 두 가지를 병행하여 저장하는 경우 상승효과가 더욱 두드러지게 나타나는 것을 확인 할 수 있었다. 따라서 풋고추의 선도를 유지하는 데에 천연항균소재가

To develop a wrapping film, which suppresses the microbial decay through the storage and distribute of greenhouse fresh produce, the antimicrobial packaging films were made and applied to the preservation of grapes(Campbell early). For the purpose the films were made by adding 1% grapefruit seed extract(GFSE) to LDPE film(Control). Graps were separately wrapped with packaging films in the state of closely-adhered packaging as well as modified atmosphere packaging(MAP). The wrapped grapes were stored at 5 for 65 days and then the colony count of contaminated microorganims, decay ration of grapes, the gas component within the packages and chemical qualities were investigated. The antimicrobial film packaging showed the efficient results to suppress microbial growth as compared with control. The total number of containated microorganisms were decreased gradually through all the storage period. In the closely-adhered packaging and MAP the decay ratios of grapes was 31% and 19%, indivisually. After the storage period of 65 days, the interior gas components of MAP were 4.5% of O2 and 17.6% of CO2, which were efficient for the storage of grapes. In addition, no negative effects in sweetness and acidities occurred.