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Mohammad Zahirul Islam,밀리 마하무다 악터,이한종,이경수,홍성미,정민재,김일섭,홍순관,최인이,백준필,강호민 (사) 한국생물환경조절학회 2014 시설원예‧식물공장 Vol.23 No.2
This study was conducted to find out the appropriate packaging materials to extend the storability and maintainthe quality of cherry tomato for modified atmosphere (MA) storage. Tomatoes were grown by hydroponic at a plastichouse in Gangwon Province. Light red maturity stage tomatoes were harvested and packed with MA condition(10,000; 20,000; 40,000; 60,000; 80,000; and 100,000cc/m2.day.atm O2 permeability film) and perforated film to store at5oC, 11oC and 24oC. The fresh weight loss was less than 0.6% in all non-perforated breathable films at 5oC, 11oC, and24oC, but perforated film had less than 2.93% at 5oC, 13.29% at 11oC and 27.24% at 24oC. The 20,000cc at 5oC and11oC, and the 40,000cc film at 24oC balanced optimum carbon dioxide and oxygen concentration in the package tomaintain quality. The 10,000cc film was appeared the significantly highest ethylene concentration at 5oC, 11oC, and24oC, this film had the lowest O2 permeability. Visual quality, firmness, and soluble solids were maintained in 20,000ccfilms both at 5oC and 11oC, the 40,000cc film at 24oC. There was no any trend in titratable acidity and vitamin C contentof treated packed film types and temperatures at cherry tomatoes packages. Therefore, the appropriate MA conditionfor 5oC and 11oC is 20,000cc/m2.day.atm O2 permeability film; for 24oC it is 40,000cc/m2.day.atm O2 permeabilityfilm because those films extended the storability through the firmness, soluble solids as well as visual quality.
Mohammad Zahirul Islam(모하메드 조히를 이스람),Young Shik Kim(김영식),Ho-Min Kang(강호민) (사)한국생물환경조절학회 2011 시설원예‧식물공장 Vol.20 No.3
본 연구는 토마토 (cv ‘adison’)의 장거리 수출을 위한 MAP에 적합한 숨쉬는 필름을 구명하기 위해 실시하였다. 저장중 생체중 감소는 5,000cc, 10,000cc, 20,000cc/㎡ㆍdayㆍatm의 산소투과도를 가지는 숨쉬는 필름 포장 처리구에서 0.6% 이하의 낮은 수준을 보인 반면, 기존에 원예작물 포장용으로 사용되던 천공필름은 1.4%의 감소를 보였다. 5℃ 저장중 포장재내 이산화탄소와 산소 농도는 20,000cc 필름처리에서 토마토 MA저장에 적합한 수준으로 유지되었다. 20℃ 저장에서는 이산화탄소 농도는 크게 증가하였고, 반면 산소농도는 급격히 감소하였는데, 역시 20,000cc 필름 처리에서 가장 변화폭이 적었다 포장재내 에틸렌 농도변화도 5℃ 저장 후 20℃에서 저장한 21일부터 25일까지 크게 증가하였는데, 숨쉬는 필름처리 중에서는 20,000cc 처리에서 가장 낮았다. 토마토의 상품성은 5℃ 저장 20일까지 모든 처리구에서 유지되었으나, 20℃ 저장 5일째부터 곰팡이가 발생하면서 품질이 급격히 열화되었다. 저장 최종일에 분석한 경도, 비타민 C, 당도는 20,000cc 처리구에서 각각 9.56N, 16.31㎎/100 gFW, 그리고 7°Brix로 가장 높게 유지되었다. 이상의 결과로 볼 때, 20,000cc/㎡ㆍdayㆍatm 산소 투과도를 가진 숨쉬는 필름이 20일 이상의 장거리 수출에서 적합한 MAP용 포장재라고 생각되었다. The study was carried out to investigate the effect of MA packaging materials on quality and storability of tomato in long distance export condition. We found that the fresh weight loss in perforated film was higher than other breathable films. The fresh weight of tomato (cv ‘Madison’) packaged with breathable films, such as 5,000 cc, 10,000 cc, 20,000 cc/㎡ㆍdayㆍatm oxygen permeable films, reduced less than 0.6%, but perforated film that already being used for packaging horticultural crops showed 1.4% fresh weight loss during 5℃ storage for 20 days and then 20℃ storage for last 5 days with 85% relative humidity. The carbon dioxide and oxygen concentration in tomato packages showed proper level for MA storage in 20,000 cc/㎡ㆍdayㆍatm O₂ breathable film treatment at 5℃ storage. Although at 20℃ storage, the carbon dioxide concentration increased sharply, the oxygen concentration decreased remarkably, the change of these gases concentration was the lowest in 20,000 cc film treatment. The ethylene concentration was sharply increased at 20℃ from 21<SUP>st</SUP> day to 25<SUP>th</SUP> day after 5℃ storage for 20 day, and the concentration was lower in 20,000 cc film treatment among the breathable film treatments. Until 20 days, at 5℃ storage all treatments did not exceed the marketability. However, the last 5 days during at 20℃, the fruit appeared fungal rots and the quality rapidly decreased. The 20,000 cc/㎡ㆍdayㆍatm O₂ permeability treated tomato performed higher firmness (9.56 N), vitamin C (16.31 ㎎/100 gFW), and soluble solids (7 °Brix) than other breathable films at final storage day. The results suggest that the 20,000 cc/㎡ㆍdayㆍatm O₂ permeable film treatment of tomato (cv ‘Madison’) performed the highest quality and storability of tomato for long distance exporting.
Cherry Tomato Qualities Affected by Foliar Spraying with Boron and Calcium
Mohammad Zahirul Islam,Mahmuda Akter Mele,백준필,강호민 한국원예학회 2016 Horticulture, Environment, and Biotechnology Vol.57 No.1
This study was conducted to investigate the effects of foliar spraying with boron and calcium on the qualities of light red maturity-stage ‘Unicorn’ cherry tomato. Increased cell -wall compactness was observed after boron (B) + calcium (Ca) treatment. The respiration rate was lowest in B + Ca-treated tomato fruits at harvest time and after storage. Firmness increased and was retained during the storage period in B + Ca treated tomato fruits. The least fresh weight loss and best shelf life were observed in B + Ca-treated tomato fruits. The vitamin C content was higher in B + Ca-treated tomato fruits than in the control. These results indicate that B + Ca treatment increases cell -wall compactness, reduces the respiration rate, reduces fresh weight loss, increases shelf life, maintains flesh firmness, and increases vitamin C content in cherry tomato.