FOOD SCIENCE ›› 2017, Vol. 38 ›› Issue (20): 209-214.doi: 10.7506/spkx1002-6630-201720030

• Safety Detection • Previous Articles     Next Articles

Migration of Two Antioxidants from Graphene/Low Density Polyethylene Composite Food Packaging Films to the Food Simulant Isooctane

ZHANG Ming, LIN Qinbao, SHAN Lijun, CHEN Chaofang, LIAO Jia   

  1. (1. Packaging Engineering Institute, Jinan University, Zhuhai 519070, China;2. Zhuhai Entry-Exit Inspection and Quarantine Bureau, Zhuhai 519070, China)
  • Online:2017-10-25 Published:2017-09-29

Abstract: A high performance liquid chromatography (HPLC) method was established for detecting two antioxidants (Irganox1076 and Irgafos168) in graphene/low density polyethylene (LDPE) composite food packaging films. The effect of time, temperature and the presence of graphene and graphene nanoplatelets on the migration of the antioxidants from LDPE films to isooctane as a fatty food simulant was studied. The interactions of the two antioxidants with isooctane during migration were discussed. The experimental results showed that the migration rates of the antioxidants increased until reaching equilibrium with increasing time or temperature. The antioxidants synergistically affected the migration of each other. The presence of graphene and graphene nanoplatelets hindered the migration of the antioxidants due to their agglomeration and adsorption capacity.

Key words: graphene, polyethylene, antioxidants, migration, HPLC

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