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Byung Seon Lim(임병선),Chai Il Lim(임채일),K.C. Gross 한국원예학회 2005 원예과학기술지 Vol.23 No.2
The effect of relative humidity (RH) on the quality of ‘Niitaka’ pears (Pyrus pyrifolia Nakai) was studied using two types of pallet covers made of polyethylene film for maintaining a high RH in commercial low temperature storage rooms. The pallet covers are referred to as open pallet cover and closed pallet cover. The open type had an opening at the top of the cover to allow greater air circulation. Relative humidity (RH), fruit temperature, gas concentration, weight loss, firmness, crispness, and decay were evaluated during storage. The RH in commercial low temperature storage rooms used for this experiment typically ranges from 65 to 82%, while using of a pallet cover increased the RH to as high as 83 to 87 or 93 to 95% with open and closed pallet cover, respectively. Control fruit (no pallet cover) showed greater weight loss than fruit stored with a pallet cover after long term storage. After sevens of month storage, skin discoloration, decay, and white-colored lesions were observed on pears stored in the closed-pallet cover. However, the open-pallet cover maintained fruit's quality without discoloration and with a little decay.