| The source and preventive measures of phthalic acid esters (PAEs) in oil-tea camellia seed oil were studied and discussed from the aspects of raw materials (oil-tea camellia seed), processing technology, equipment, packaging and storage of oil-tea camellia seed oil. The results showed that oil-tea camellia seed itself contained a very small amount of PAEs, but it was not enough to risk the pollution of PAEs in oil-tea camellia seed oil. The processing aids used in the oil-tea camellia seed oil processing did not detected PAEs, so processing aids were not the pollution source of PAEs in oil-tea camellia seed oil. PAEs in oil-tea camellia seed oil were mainly derived from the plastic products contacted in the process of production. The higher the oil sample temperature was, or the longer the contact time between the oil sample and the plastic products was, the migration of PAEs to the oil sample increased. The PAEs in polluted oil-tea camellia seed oil could be removed by deodorization, which could effectively solve the pollution risk of PAEs. |
