摘要
选取苯乙烯迁移量作为测试指标,对比了聚苯乙烯杯中残留苯乙烯在真实食品及醇类食品模拟物中的迁移量,分析确认适合这几类中国特色食品的模拟物。采用顶空-气相色谱法测定苯乙烯在3类真实食品、10%乙醇(体积分数,下同)和20%乙醇中的迁移量,采用高效液相色谱法测定苯乙烯在50%乙醇和95%乙醇中的迁移量。结果表明,豆类饮料中苯乙烯迁移量介于其在20%乙醇和50%乙醇中的迁移量之间;豆腐和粥中苯乙烯的迁移量接近10%乙醇和20%乙醇,均远低于50%乙醇;根据食品接触材料及制品的食品模拟物适用性原则,应选择与食品迁移量接近或大于食品迁移量的模拟物,建议豆类饮料选择50%乙醇作为模拟物,豆腐类食品和粥类食品选择20%乙醇作为模拟物,相关结果可为食品安全国家标准的修订提供参考。
Taking styrene migration amount as a test indicator,the migration of residual styrene in polystyrene cups to three types of food and alcohol simulants was investigated comparatively,and the suitable food simulants from the Chinese special food series were confirmed. The migration amount of styrene from the polystyrene cup to bean beverages,tofu,porridge,and 10 and 20 vol% alcohol was detected using headspace-gas chromatography. Meanwhile,the migration amount of styrene from the cup to 50 and 95 vol% alcohol was determined by high-performance liquid chromatograph. The results indicated that the migration amount of styrene in the bean beverages was between the migration amounts in 20 and 50 vol% alcohol. The migration amounts of styrene in tofu and porridge was closed to the migration amounts in 10 and 20 vol% alcohol,which were much lower than that in 50 vol% alcohol. According to the migration results,50 vol% alcohol was recommended as a simulant for bean beverages,and 20 vol% alcohol as a simulant for tofu and porridge. These results provided a data reference for reformulating the national food safety standards.
作者
徐晓卉
赵洁
沈康俊
刘曙
XU Xiaohui;ZHAO Jie;SHEN Kangjun;LIU Shu(Technical Center for Industrial Product and Raw Material Inspection and Testing of Shanghai Customs,Shanghai 200135,China)
出处
《中国塑料》
CAS
CSCD
北大核心
2022年第4期128-134,共7页
China Plastics
基金
海关总署科技项目(2017IK159)。
关键词
豆制品
粥类
苯乙烯
食品模拟物
适用性
bean product
porridge
styrene
food simulant
applicability
