麦秸秆基塑料餐盒中2种合成酚类抗氧化剂及其降解产物的迁移  

Migration of Two Synthetic Phenolic Antioxidants and Their Degradation Products fromWheat Straw-Based Plastic Lunch Boxes

作　　者：王金鑫 梁颖茵 钟怀宁 胡长鹰[1] WANG Jinxin;LIANG Yingyin;ZHONG Huaining;HU Changying(Department of Food Science and Engineering,Jinan University,Guangzhou 510623,China;Guangzhou Customs District Technology Center,Guangzhou 510075,China)

机构地区：[1]暨南大学理工学院食品科学与工程系,广东广州510632 [2]广州海关技术中心,广东广州510075

出　　处：《食品科学》2024年第24期242-249,共8页Food Science

基　　金：“十三五”国家重点研发计划重点专项(2018YFC1603205);广东省重点领域研发计划项目(2019B020212002)。

摘　　要：基于气相色谱-质谱建立了麦秸秆基塑料餐盒中2,4-二叔丁基苯酚(2,4-di-tert-butylphenol,2,4-DTBP)、叔丁基对甲酚(butylated hydroxytoluene,BHT)及其衍生物2,6-二叔丁基苯醌(2,6-di-tert-butyl-p-benzoquinone,BHT-Q)和3,5-二叔丁基-4-羟基(3,5-di-tert-butyl-4-hydroxybenzaldehyde,BHT-CHO)残留量以及在异辛烷中迁移量的检测方法,探究微波、蒸煮和冷冻等实际使用情况对这4种物质迁移的影响。结果表明,植物纤维基塑料制品中2,4-DTBP、BHT及其降解产物BHT-Q和BHT-CHO在食品模拟物的迁移行为主要与食品模拟物类型、残留量和实际使用场景有关。麦秸秆基塑料餐盒经过重复微波、蒸煮和冷冻可能会影响(甚至轻微增加)某些化合物的释放,但是浓度仍然相对较低,并呈下降趋势,在连续使用几次后化合物的迁移量甚至可以忽略不计。通过安全评估发现由麦秸秆基塑料餐盒生成的BHT-Q、BHT、2,4-DTBP、BHT-CHO对消费者相对安全。A method based on gas chromatography-mass spectrometry(GC-MS)was developed for the determination of the residues of 2,4-di-tert-butylphenol(2,4-DTBP),butylated hydroxytoluene(BHT)and its derivatives 2,6-di-tert-butylp-benzoquinone(BHT-Q)and 3,5-di-tert-butyl-4-hydroxybenzaldehyde(BHT-CHO)and their migration to isooctane from wheat straw-based plastic lunchboxes.The effects of food handling practices such as microwaving,steaming,and refrigeration on the migration of these four substances were explored.The experimental results showed that the migration behaviors of 2,4-DTBP,BHT,BHT-Q and BHT-CHO from plant fiber-based plastic products to food simulants were mainly related to the types of food simulants,residue amounts and actual application scenarios.Repeated microwaving,cooking and freezing of straw-based plastic lunch boxes might affect(or even slightly increase)the release of some compounds,but their concentrations remained relatively low and tended to decrease with increasing number of repeated cycles,and even the migration of the compounds became negligible after several consecutive applications.BHT-Q,BHT,2,4-DTBP,and BHTCHO migrating from wheat straw-based plastic lunch boxes were found to be relatively safe for consumers.

关 键 词：麦秸秆基塑料餐盒 合成酚类抗氧化剂 迁移 安全评估 

分 类 号：TS206.4[轻工技术与工程—食品科学]