不同包装材料对碧螺春绿茶贮藏效果的影响

Influences of Packing Materials on the Preservative Effect of Biluochun Tea

摘要:

研究了牛皮纸、PE、BOPP/PE、BOPP/PET/CPE、铝箔复合膜（聚酯/铝箔/聚乙烯）和马口铁易拉罐等几种包装材料对碧螺春绿茶茶叶贮藏的影响。结果表明，包装材料对碧螺春绿茶叶的贮藏保鲜效果密切相关。在感官方面，马口铁易拉罐的保鲜效果最好；化学成分方面，不同包装材料对于碧螺春绿茶叶化学成分含量的影响各不相同，按照与原茶相比的相对值极差大小依次为Vc＞叶绿素＞氨基酸＞水溶性浸出物＞总糖＞茶多酚、咖啡碱。

Abstract:

Influences of several packing materials on the preservative effect of Biluochun tea are studied. The results show that the packing materials are closely related to the sensory quality and biochemical components of the stored Biluochun tea. Among the examined materials, tinplate pop can shows the best fresh-keeping effect. Besides, the materials affect the biochemical component contents in the stored tea and the order of the changes of these components were Vc> chloropsultshy>free amino acids> water extracts>carbohydrate> polyphenols and caffeines.