DH-1 型柑桔保鲜药纸的研制

Manufacture of DH 1 papers cocated with preservatives for citrus fruits

ＤＨ－型柑桔保鲜药纸是由联苯、ＨＡ和工业石蜡等主要原料加工而成，具有制造工艺简单、使用方便、保鲜效果好、药品残留量低等特点。经贮藏试验，使用ＤＨ－１型保鲜药纸烂果率仅为４．７％，而ＳＳ保鲜药纸烂果率为７．４％。联苯残留量果皮、果肉中分别为４．３２ｍｇ／ｋｇ和０．７７ｍｇ／ｋｇ。仅为ＷＨＯ／ＦＡＯ食品标准联苯允许量的１５％左右。

DH 1 papers were made by coating kraft papers with the mixture of paraffin and preservatives such as diphenylene (DP) and HA.In a cardboard box which contains 15 kg citrus fruits,2 pieces of DH 1 papers(43×28 cm) were placed on the top and bottom respectively.The result of the storage test (at 10～20℃ for 4 months) showed that DH 1 papers kept the fruit fresher compared with the commercial “ss preservative”and the amount of remaining DP was about 15% of that of the permission published by WHO/FAO.On the other hand,this method is simple,economical and practical.