PROBLEM TO BE SOLVED: To provide a sterilization or pest control system and a sterilization or pest control method, in which sufficient sterilization or pest control effect may be exerted for fruits and vegetables using a sterilization or pest control gas having a sterilization or pest control effect at a gas concentration or exposure time that does not cause damage to the fruits and vegetables.SOLUTION: A storage unit 7 stores combinations of the gas concentration of sterilizing or pest-controlling gas and the exposure time of the fruits and vegetables to the sterilizing or pest-controlling gas as sterilizing or pest-controlling conditions for each kind of fruits and vegetables. A selection designation receiving unit 51 receives selection of the type of a fruit and vegetable and designation of the exposure time. A gas concentration determination processing unit 52 reads from the storage unit 7 the sterilization or pest control conditions corresponding to the type of fruits and vegetables whose selection has been accepted by the selection designation accepting unit 51, and determines a gas concentration corresponding to the exposure time whose designation has been accepted by the selection designation accepting unit 51. A gas concentration control unit 53 performs control so as to maintain the gas filling space at the gas concentration determined by the gas concentration determination processing unit 52.SELECTED DRAWING: Figure 2COPYRIGHT: (C)2020,JPO&INPIT【課題】青果物に対し、殺菌又は病害虫防除効果を有する殺菌又は病害虫防除ガスを用いて、青果物の損傷が生じないガス濃度又は暴露時間で十分な殺菌又は病害虫防除効果を得ることができる殺菌又は病害虫防除システム及び殺菌又は病害虫防除方法を提供する。【解決手段】記憶部７が、殺菌又は病害虫防除ガスのガス濃度と殺菌又は病害虫防除ガスに対する青果物の暴露時間との組合せを殺菌又は病害虫防除条件として青果物の種類ごとに記憶する。選択指定受付部５１が、青果物の種類の選択及び暴露時間の指定を受け付ける。ガス濃度決定処理部５２が、選択指定受付部５１により選択が受け付けられた青果物の種類に対応する殺菌又は病害虫防除条件を記憶部７から読み出し、選択指定受付部５１により指定が受け付けられた暴露時間に対応するガス濃度を決定する。ガス濃度制御部５３が、ガス充填空間内をガス濃度決定処理部５２により決定されたガス濃度で維持するように制御を行う。【選択図】 図２
