文章摘要
杨 静,张 蕾.打孔包装对西兰花品质的影响[J].包装工程,2012,33(3):31-34.
YANG Jing,ZHANG Lei.Influence of Perforated Packaging on Broccoli Quality[J].Packaging Engineering,2012,33(3):31-34.
打孔包装对西兰花品质的影响
Influence of Perforated Packaging on Broccoli Quality
投稿时间:2011-12-03  修订日期:2012-02-10
DOI:
中文关键词: 西兰花  PP微孔膜  微孔自立袋  透气率
英文关键词: broccoli  micro-perforated PP film  micro-perforated self-supporting bag  permeability
基金项目:
作者单位
杨 静 天津科技大学 天津 300222 
张 蕾 天津科技大学 天津 300222 
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中文摘要:
      分别在2种厚度的PP薄膜(40,50 μm)上以一定间距打不同数量的孔(280 μm),制得了PP微孔薄膜。将PP微孔薄膜(40 μm)制成了自立袋来包装西兰花。通过改变自立袋上微孔的位置,观测袋内气体和西兰花叶绿素含量的变化。结果表明:开孔位置影响袋内O-2和CO-2气体含量;打孔数量为2个,孔间隔2 cm,开孔在西兰花花蕾处时,袋内花蕾处呈低O-2和高CO-2状态,所包西兰花的叶绿素含量最高,西兰花最新鲜;在环境温度一定的条件下,PP微孔自立袋的厚度、开孔位置、孔径和孔数是影响袋内气体含量的重要因素。
英文摘要:
      The PP micro-perforated films of 40 μm and 50 μm thickness with different number of holes (diameter of 280 μm) in certain distance were prepared. Self-supporting bag was made using the micro-perforated PP film (40 μm) for packing broccoli. Change of gas content and chlorophyll content of broccoli was observed by altering micro-perforation’s position. The experiment results showed that micro-perforation’s position affect the content of O-2 and CO-2; when 2 holes separating by 2cm are punched in the broccoli bud, high O-2 concentration and CO-2 low concentration is produced, content of broccoli’s chlorophyll is highest and broccoli is the freshest. The thickness of micro-perforated self-supporting bag, micro-perforation’s position, perforation diameter and perforation number are important factors influencing gas content in the package when the environmental temperature is certain.
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