Factors Affecting Migration of Contaminants from Paper Through Polymer Coating into Food Simulants
The migration of two surrogate contaminants, 1-hydroxycyclohexyl-1-phenyl ketone and benzyldimethylketal, from different paper into different food simulant (10% ethanol, 95% ethanol and isooctane)through different polymer coating low density polyethylene (LDPE) and polypropylene (PP) was studied. Thethe two surrogates and were dried using vacuum dry oven with vacuum degree 0.01MPa and temperature 55℃, then subjected to migration experiments using single-sided contact method at 20℃. Here, 40, 65 and 33mean the grammage of paper, and 15, 25 mean the grammage of LDPE, 12 means the grammage of PP(Theethanol, 95% ethanol and isooctane food simulants were determined by gas chromatography with flame ionizationdetector after predisposal. Effect factors on migration were discussed from different aspect such asfood simulant, migrant molecular weight or structure, paper property, thickness of polymer coating, type ofpolymer coating. The results showed that the migration rate was faster in fatty food simulant 95% ethanol andisooctane than in aqueous food simulant 10% ethanol, the migration rate of the higher molecular weight compoundwas slower than the lower molecular weight compound at the same experimental condition, a thickerLDPE coating delayed the migration process of contaminant, paper with lower density and higher porositywould increase migration speed, the barrier property of PP was far away higher than that of LDPE, even if thethickness of LDPE was thicker a lot than PP.
Xiu-Ling Huang Ting Ye Ming Li Quan-Xiao Liu Zhi-Wei Wang
School of Mechatronics and Automation Shanghai University Shanghai, China Lab.Of Printing & Packaging Materials and Technology-Beijing Area Major Laboratory Beijing Institute Packaging Engineering Institute Jinan University Zhuhai, China
国际会议
The 17th IAPRI World Conference on Packaging(第17届世界包装大会)
天津
英文
608-612
2010-10-12（万方平台首次上网日期，不代表论文的发表时间）