고온기 결구상추의 포장재와 포장방법 적용에 따른 선도 비교
Application of Different Packaging Methods and Materials for Comparing Freshness of Lettuce (Lactuca sativa L.) harvested in Summer Season
Effects of different packaging methods for maintaining the shelf life and postharvest quality of iceberg lettuce (Lactuca sativa L.) were studied after harvesting in summer season. Lettuce heads were packaged in plastic crate with or without different films such as (A) Individual lettuce head sealed packaging with linear low density polyethylene (LLDPE) film; (B) Packaging lettuce head in plastic crate and wrapped with LLDPE film; (C): Individual lettuce head sealed packaging with perforated high density polyethylene (HDPE) film; (D) Packaging lettuce head in plastic crate and wrapped with perforated HDPE; and (E) Packaging lettuce head in plastic crate without any film (control), and stored at 2°C for 35 days. Several quality parameters such as fresh weight loss, SPAD (soil & plant analyzer development) meter value, respiration rate, moisture content and appearance of lettuce were investigated. The lettuce wrapped with individually- sealed LLDPE film showed the lowest weight loss and the highest SPAD value rendering the best appearance index among the treataments throughout the three-week storage period at 2oC. Extending the freshness of iceberg lettuce during low temperature storage will definitely increase the salability potential in the domestic market even during summer season.
목차
Abstract 서론 재료 및 방법 1. 결구상추 고온기 수확 후 유통 조사 2. 재료 및 저장조건 3. 포장재 종류 및 포장방법 4. 생체중량 변화 5. SPAD 지수 변화 6. 경도 7. 호흡률 8. 포장내 가스 조성 9. 수분 함량 측정 10. 색상 변화 11. 신선도 평가 및 외관 변화 조사 결과 및 고찰 1. 결구상추의 고온기 수확 후 유통 2. 생체중량 변화 3. SPAD 지수 변화 4. 경도 변화 5. 호흡 변화 6. 포장내 가스 조성 변화 7. 수분함량 변화 8. 색상차(ΔE ) 변화 9. 신선도 및 외관변화 요약 감사의 글 참고문헌
키워드
lettucepackagingfreshnessquality
저자
이정수 [ Jung-Soo Lee | 국립원예특작과학원 ]
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