不同包装对芋头采后贮藏品质的影响OA

This study analyzed the influence of different packaging on the postharvest storage quality of taro,established a suitable packaging method for the storage and preservation of taro after mud removal and cleaning,and provided production guidance and theoreti-cal basis for the storage of taro.Fresh Lipu taro was used as the experimental material.After cleaning,sterilization,and callus pretreat-ment,samples were packaged with unpackaged(CK),conventional bags,and moisture-permeable bags,respectively,then stored at 10 ℃ with 80％-85％relative humidity.Then observed the changes in taro appearance and physiological indexes every 30 d to analyze the quality changes of different packaged taros.The research results showed that the mold rate of taro packaged in ordinary bags after 30 d of storage was 100％,losing its commercial value.Both unpackaged and moisture-permeable packaging remained dry.After 180 d of stor-age,the weight loss rate and respiration rate of the moisture-permeable packaging group were significantly lower than those of the unpack-aged group.The contents of superoxide anion free radical and H2O2 in the moisture-permeable packaging group taro were lower than those of the unpackaged group taros by 16.07％and 3.33％;the contents of vitamin C,soluble protein,starch,total phenol,flavonoids,and the activities of superoxide dismutase(SOD),catalase(CAT)were higher than those of the unpackaged group taros by 8.52％,5.32％,7.03％,21.77％,18.60％,33.11％and 6％,respectively.The above research indicates that moisture-permeable packaging can extend the storage of mud-free taro to six months while maintaining quality.