摘要
通过真空镀膜技术将Ag蒸镀在PET薄膜上,然后用于鲜牛肉包装,以此延长鲜牛肉的货架寿命。本文讨论了经该薄膜包装储存一段时间后的鲜牛肉挥发性盐基氮(TVB-N)的变化,研究了该抗菌薄膜的抗菌效果,并用气相色谱测(GC)测定其H2S释放量,运用原子吸收光谱(AAS)测定该镀Ag材料的Ag含量。结果表明:经这种方法包装后的鲜牛肉的挥发性盐基氮(TVB-N)以及H2S释放量随着镀Ag量增加明显下降。该抗菌薄膜的杀菌率达到99.8%。
Ag was vacuum coated on polyester film, and then packed fresh beef in order to prolong its shelf life. This paper studied on the change of beef＇s TVB-N, And content of emanative H2S was mensurated by GC. And exact content of Ag in antimicrobial film was analyzed by AAS, The mierobail inhibitory rate was discussed. The results showed that TVB-N and content of emanative H2S decreased. Mierobail inhibitory rate reached 99.8%.
出处
《包装与食品机械》
CAS
2007年第1期5-7,25,共4页
Packaging and Food Machinery
关键词
包装材料
鲜牛肉
真空镀膜
抗菌包装膜
packaging material
fresh beef
vacuum coating
antimierobial film
