Abstract:
:The migration of flavonoids from low-density polyethylene (LDPE) film (0.4%, w/w) to aqueous food simulants over 16 weeks at 0, 15, and 30 °C was investigated. The migration amount of total flavonoids was calculated based on the rutin contents determined by high-performance liquid chromatography (HPLC). Diffusion and partition coefficients, along with the activation energy (Ea) were calculated based on Fick's second law. The results showed that the migration of flavonoids was influenced by temperature, time and the simulants. The Ea values for flavonoid diffusion were 49.2, 55.9, and 25.8 kJ mol(-1) in distilled water, 4% acetic acid and 30% ethanol, respectively. This study indicated that the flavonoids in LDPE film easily migrated into food simulants; and this behaviour was related to the low Ea values of flavonoid diffusion, especially in ethanol at 0-30 °C, when the antioxidants were released from the film.
journal_name
Food Chemjournal_title
Food chemistryauthors
Zhang S,Zhao Hdoi
10.1016/j.foodchem.2014.02.018subject
Has Abstractpub_date
2014-08-15 00:00:00pages
45-50eissn
0308-8146issn
1873-7072pii
S0308-8146(14)00191-5journal_volume
157pub_type
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