비천공 Breathable필름이 장거리 모의 수출 조건에서 파프리카의 MA 저장중 품질과 저장수명에 미치는 영향

The aim of this study was investigated long distance export condition of paprika from Korea to Canada, and evaluated the effect of non-perforated breathable films on the storability of paprika during MA storage in the simulated long distance export condition. The long distance export condition of paprika from Korea to Canada was 7 ± 1℃ and RH 90% during shipping for 20 days, and then the temperature of that was increased to 13℃ for 3 hours during transferring from refrigerated container to storage room in Canada, and decreased 3~4℃ for 3 days before distributing to local markets. The temperature and relative humidity of local markets was 16℃ and 60%, respectively. The packing material treatments were non-packing, as control, perforated film (6 ㎜ diameter hole, 18 holes/㎡), and 3 kind of laser treated non-perforated films (oxygen transmission rate was 5,000, 20,000 and 100,000 ㏄/㎡ㆍdayㆍatm). Under the simulated long distance export condition; 7℃ and RH 90% for 15 days and then 20℃ and RH 55% for 7 days, the fresh weight loss of paprika was less than 1% in 3 kind of laser treated non-perforated film treatments but was more than 4% in control and perforated film treatment that showed severe deterioration of visual quality after 20 days of storage. The atmosphere of paprika packages was changed 5% oxygen and 15% carbon dioxide in 5,000 ㏄/㎡ㆍdayㆍatm treatment, and 16% oxygen and 4~5% carbon dioxide in 20,000 ㏄/㎡ㆍdayㆍarm treatment during room temperature storage after cold storage for 15 days. A carbon dioxide concentration of these 2 treatments was exceeded the optimal MA and CA condition. There was no significant difference in ethylene concentration among 3 kind of laser treated non-perforated film treatments. A paprika packed with 100,000 ㏄/㎡ㆍdayㆍatm non-perforated film showed the highest visual quality under the simulated long distance export condition. However, the firmness and soluble solids did not show any significant difference among 3 kind of laser treated non-perforated film treatments. Therefore, we may suggest that 100,000 ㏄/㎡ㆍdayㆍatm laser treated non-perforated film was the proper film for MAP of paprika under long distance export condition that was 7 ± 1℃ and RH 90% for 15 days, and then 20℃ and RH 55% for 7 days.