速食食品纸桶包装冲泡过程的矿物油迁移试验研究

Migration test of mineral oil hydrocarbons from paper-based bucket packaging of instant foods during the brewing process

中文关键词:  速食食品  纸桶包装  矿物油  迁移试验  化学溶剂替代

英文关键词:instant foods  paper bucket packaging  mineral oil hydrocarbons  migration test  chemical solvent substitution

中文摘要:

      目的 建立速食食品纸桶在冲泡过程中产生矿物油迁移的化学溶剂替代试验, 并且以此考察市售纸桶包装的矿物油迁移情况。方法 首先将100℃的玉米油倒入空纸桶, 自然放置30 min以模拟冲泡过程; 然后以该植物油为参考, 分别考察其替换为正己烷和95%乙醇的迁移数据, 寻找纸桶在食品冲泡过程中矿物油迁移试验的替代化学溶剂。结果 冲泡过程中纸桶及其外层印刷油墨均会迁移矿物油至玉米油中, 其中饱和烃(mineral oil saturated hydrocarbons, MOSH)的迁移量为2.26~22.73 mg/kg; 纸桶迁移矿物油至正己烷的数据与其迁移到植物油的具有较好的可比性, 因而确定正己烷为纸桶迁移矿物油的化学替代溶剂, 从而建立了纸桶冲泡过程的迁移试验, 即100 mL正己烷在常温下置于空纸桶30 min, 然后测定迁移液中MOSH和芳香烃(mineral oil aromatic hydrocarbons, MOAH)。结论 纸桶包装在冲泡过程会不同程度地迁移出矿物油, 其中白桶的迁移量普遍高于牛皮纸桶, 部分白桶的MOAH迁移量超出欧盟限量(0.05 mg/kg)。考虑到MOAH有致癌和遗传毒性, 建议予以重视。

英文摘要:

      Objective To propose a migration test of mineral oil hydrocarbons using chemical solvent substitution in paper-based food packaging bucket during the process of brewing instant foods, and analyze the mineral oil hydrocarbons migration levels of commercial paper-based bucket for instant foods. Methods Initially, corn oil at 100°C was poured into the empty paper buckets and allowing them to cool naturally for 30 minutes to simulate the brewing process. Then, using the vegetable oil as reference, the migration data of vegetable oil replaced by n-hexane and 95% ethanol were investigated respectively, and the alternative chemical solvent for mineral oil migration test in the paper-based food packaging bucket during food brewing was found. Results Throughout the brewing process, both the paper-based buckets and their outer printing ink exhibit mineral oil hydrocarbons migration into the corn oil, with mineral oil saturated hydrocarbons (MOSH) content ranging 2.26–22.73 mg/kg. The migration results of n-hexane were found to be comparable to those of vegetable oil, and thus suggesting its suitability as a substitute chemical solvent for mineral oil hydrocarbons migration. A proposed mineral oil hydrocarbons migration test from paper-based bucket into foods in the brewing process, involved placing 100 mL of n-hexane in the buckets at room temperature for 30 minutes, followed by determination of MOSH and mineral oil aromatic hydrocarbons (MOAH) in the migration solution. Conclusion The study reveals the commercially paper-based bucket packaging of instant food exhibited varying degrees of mineral oil hydrocarbons migration during the brewing process, with the white paper-based buckets generally exhibiting higher mineral oil hydrocarbons migration levels compared to kraft paper-based ones. Some white paper buckets exceeded the European Union limit for MOAH at 0.05 mg/kg. Due to the carcinogenic and genotoxic properties of MOAH, it is recommended to pay attention to it.