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Minimizing Benzo(a)pyrene Content in the Manufacturing of Sesame Oil and Perilla Oil  

Kim, Hyong-Yol (Department of Food Science and Technology, Seoil College)
Song, Dae-Sik (Department of Food Science and Technology, Seoil College)
Publication Information
Food Science and Preservation / v.15, no.4, 2008 , pp. 556-561 More about this Journal
Abstract
This study was carried out to identify the cause of benzo(a)pyrene[B(a)P] production during the manufacture of sesame oil and perilla oil, and to minimize such B(a)P synthesis. The distribution of B(a)P in sesame seed and perilla seed differed with seed-growing district, the range was $0.06{\sim}0.31{\mu}g/kg$ in domestic seed and $0.12{\sim}0.47{\mu}g/kg$ in imported seed. B(a)P contents after roasting at $220^{\circ}C$ for 20 min in sesame seed and perilla seed were $1.87{\sim}2.47{\mu}g/kg$ and $2.12{\sim}2.43{\mu}g/kg$, respectively, and levels in oils obtained from the roasted seeds were $3.68{\mu}g/kg$ and $4.64{\mu}g/kg$, respectively. These data refer to seeds subjected to codsed roasting. With open roasting, the levels were $0.63{\mu}g/kg$ and $0.56{\mu}g/kg$, respectively. Closed roasting resulted in absorption of B(a)P, with consequent high levels in oils. We introduced forced ventilation during closed roasting. We tested various methods to remove B(a)P from sesame oil and perilla oil. Neither centrifugation nor filtering with diatomite and diatomiteactive carbon removed B(a)P. A filtering method using active carbon was effective. But this method adversely affected the color and flavor of sesame oil and perilla oil.
Keywords
sesame oil; perilla oil; benzo(a)pyrene; roasting-expression;
Citations & Related Records
Times Cited By KSCI : 5  (Citation Analysis)
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