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박미희(Me-Hea Park),최지원(Ji-Weon Choi),김용범(Yong-Bum Kim),김명회(Myeong-Hae Kim),원희연(Hee-Yeon Won),신선영(Sun-Young Shin),김지강(Ji-Gang Kim) 한국원예학회 2014 원예과학기술지 Vol.32 No.5
The effect of modified atmosphere packaging (MAP) on kohlrabi (Brassica olerace L. gongulodes group)’s quality and antioxidant molecule during storage was examined to determine the optimal film package for maintaining freshness. To extend shelf life, MAP was tested using PE 50 ㎛ and oriented polypropylene (OPP) films with oxygen transmission rate (OTR) at 3,000, 10,000, 15,000 mL/㎡/day/atm. The OPP film packaging with modified oxygen transmission rate showed a delay in a weight loss and extended storage period. The package with OTR 3000 attained the desired gas composition of O2 3.2-6.7 ㎪ and CO₂ 13.1-19.8 ㎪, in storage at room temperature. Kohlrabi stored in this package showed the lowest weight loss and the highest visual quality. Deterioration and off-odor were developed more rapidly in PE 50 ㎛ towards the end of the storage at room temperature. However, there are no differences among OTR films in visual quality and off-odor until 60 days at cold storage. Vitamin C content of kohlrabi was reduced rapidly in OTR 15000 with high transmission rate and showed less loss in PE 50 ㎛ and OTR 3000 in both room temperatures and cold storage. Results revealed that an OPP film with OTR 3000 extended the shelf life of kohlrabi in storage with maintained quality and vitamin C.