食品与发酵工业2024，Vol.50Issue(24)：97-106,10.DOI:10.13995/j.cnki.11-1802/ts.038894
食品接触用再生聚丙烯中八种加工助剂及挥发性物质残留及迁移研究
Residue and migration of eight processing additives and volatile compounds in recycled polypropylene for food contact materials
摘要
Abstract
In the recycling process of food contact polypropylene,some chemicals will inevitably remain due to incomplete cleaning or degradation,which may threaten food safety.In this paper,gas chromatography-mass spectrometry(GC-MS)and high-performance liquid chromatography-mass spectrometry(HPLC-MS)were used to develop analytical methods for determining the residual of 4 processing addi-tives[bis(2-ethylhexyl)phthalate,Irgafos 168,bis(3,4-dimethylbenzylidene)sorbitol,2,2'-(octadecylimino)diethanol],degradation products(2,4-di-tert-butylpheno),and 3 volatile compounds(D-limonene,α-terpineol,galaxolide)in recycled polypropylen(rPP).The analytical method was used to analyze 9 market rPP samples,and the results showed that the residue of Irgafos 168 was the highest(998.36 mg/kg).To further study its migration to food in films with different rPP contents,7 types of films with different contents of rPP(0％,10％,25％,50％,75％,90％,100％,mass fraction)were prepared and then immersed in isooctane,95％(volume fraction)ethanol,50％ethanol,and 4％acetic acid at 70 ℃ for 2 hours,respectively.The principal component analysis and the classification and regression tree algorithm were used to analyze the residues.Results indicated that there was no significant difference from virgin polypropyl-ene when the rPP content was less than 25％.This study offers data and protocol support for the safe utilization of rPP for food contact,which is essential for promoting resource recycling and ensuring food safety.关键词
食品接触材料/再生聚丙烯/加工助剂/挥发性物质/残留量/迁移量Key words
food contact materials/recycled polypropylene/processing additives/volatile compound/residues/migration引用本文复制引用
李泽坤,刘宜奇,曾少甫,王志伟,胡长鹰..食品接触用再生聚丙烯中八种加工助剂及挥发性物质残留及迁移研究[J].食品与发酵工业,2024,50(24):97-106,10.基金项目
国家自然科学基金国际(地区)合作与交流项目(32061160474) （地区）
