Journal of the Korean Society of Food Science and Nutrition (한국식품영양과학회지)

The Korean Society of Food Science and Nutrition (한국식품영양과학회)
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Reduction of Benzo(a)pyrene Content in Sesame Oil by Using Adsorbents

흡착제를 이용한 참기름의 벤조피렌 저감화

  • Choi, Seung Kwan (Dept. of Food Science and Technology, Seoul National University of Science and Technology) ;
  • Choe, Su Bin (Dept. of Food Science and Technology, Seoul National University of Science and Technology) ;
  • Kang, Sung Tae (Dept. of Food Science and Technology, Seoul National University of Science and Technology)
  • 최승관 (서울과학기술대학교 식품공학과) ;
  • 최수빈 (서울과학기술대학교 식품공학과) ;
  • 강성태 (서울과학기술대학교 식품공학과)
  • Received : 2013.11.29
  • Accepted : 2014.01.25
  • Published : 2014.04.30
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Abstract

This study was conducted to reduce benzo(a)pyrene in sesame oil by addition of several kinds of absorbents (active carbon, diatomaceous earth, kaolin, acid clay, perlite, and silicate). Sesame oil containing 4.1 ppb benzo(a)pyrene was stirred with 0.2% (w/w) several kinds of adsorbents at $40^{\circ}C$ for 30 min. Active carbon resulted in the highest reduction of benzo(a)pyrene in sesame oil among the investigated adsorbents, and decolorization was observed only by using silicate. Reduction of benzo(a)pyrene was optimized by controlling amount the of active carbon, stirring time, and stirring temperature. Futher, 4.1 ppb benzo(a)pyrene in sesame oil was reduced by up to 0.91 ppb by adding 0.5% (w/w) active carbon and stirring for 30 min at $70^{\circ}C$. Optimized conditions were applied to sesame oil (2.14~4.11 ppb) purchased from a Gyeonggi traditional market, and benzo(a)pyrene in sesame oil was reduced by up 0.43~0.86 ppb.

Benzo(a)pyrene 함량이 4.1 ppb가 되도록 첨가한 참기름에 흡착제인 활성탄을 첨가하였을 때 첨가량, 교반시간, 교반온도가 증가함에 따라 benzo(a)pyrene 함량이 줄어들었다. 참기름에 활성탄을 0.5%(w/w) 투입하고, 30분간 $70^{\circ}C$에서 교반하였을 때 볶은 참기름에 존재하고 있는 benzo(a)pyrene의 함량은 0.91 ppb까지 낮아져 식품공전규격인 2.0 ppb 이하의 적합 수준의 참기름을 얻을 수 있었다. 경기권 재래시장에서 판매되고 있는 재래식 압착 참기름 30건의 benzo(a)pyrene의 함량은 0.19 ppb부터 4.11 ppb로 나타났다. 경기권 재래시장에서 구입한 참기름 중 benzo(a)pyrene 함량이 가장 높은 3가지 시료(2.14~4.11 ppb)를 위와 같은 최적의 흡착조건으로 처리하였을 때 benzo(a)pyrene의 함량은 0.43~0.86 ppb로 매우 효과적으로 감소하였다. 본 연구는 활성탄 첨가 후 교반처리만으로 볶음공정을 반드시 거치는 참기름에서 규격 이상의 벤조피렌이 검출되는 것을 저감화 하는 방법을 제시함으로써 참기름이 안전하게 생산, 유통될 수 있는 데에 응용할 수 있을 것으로 생각된다.

Keywords

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