Tracing of Benzopyrene in Camellia Oleifera Oil made by different Extraction Methods
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Abstract:
HPLC was employed to detect benzo(α)pyrene content in Camellia oleifera oil in different step of several extraction processes. Benzo(α)pyrene came mainly from the dual evaporation of solvent in solvent extraction method and was up to 2.54 μg/kg. In the oil made by pressing method, the main source of Benzo(α)pyrene was roasting step. The highest amount was 26.55 μg/kg. The benzo(α)pyrene content decreased in the following refining process in both solvent extraction and pressing methods. Most of benzo(α)pyrene could be removed in the decolorization step. No benzo(α)pyrene was found in camellia oleifera oil extracted with hypocritical extraction method.
