Effects of microwave combined with modified atmosphere package on storability of Clausena lansium(Lour.)Skeels fruit during postharvest storage

ObjectiveEffects of microwave treatment combined with modified atmosphere package(MAP)on physio-logical indicators and nutrient quality changes of Clausena lansium(Lour.)Skeels fruits during postharvest storage were studied in order to provide reference for storage and preservation of the fruits.MethodTaking Jixin C.lansium as tested material,the fruits were treated by microwave treatment combined with MAP(C.lansium were treated in microwave with 540 W microwave power and 30 s microwave time,then the fruits were dried and packed into 0.02 mm-thick polyethy-lene bags),microwave treatment without MAP,MAP without microwave treatment and no microwave treatment and no MAP.Then the fruits under the four treatments were stored at 15℃temperature and 40% relative humidity.Physiological indicators and nutrient quality changes were determined every 4 d.ResultThe respiratory intensity,cell membrane per-meability,and polyphenol oxidase(PPO)activity of C.lansium were greatly restrained by the microwave treatment com-bined with MAP,and catalase CAT activity was enhanced.This treatment also effectively kept the appearance quality of C.lansium fruits and slowed down the decrease of protein,vitamin C and soluble solids in fruits.After storage of 12 d, the good fruit rate of C.lansium fruits was 87.50%,weight loss rate was 0.58%,the fruit was full and the peel yellow, the preservation effects was better than the other three treatment groups.ConclusionThe microwave treatment combined with MAP can keep the intrinsic flavor of C.lansium fruits and prolong the storage longevity.