Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Benzo(a)pyrene Contents in Commercial Vegetable Oils and Changes during Processing of Vegetable Oils

국내 유통 식용유지 및 식용유지 종류별 제조 공정에 따른 벤조피렌 함량

  • Sung, Tae-Kyung (Department of Food and Nutrition, Hanyang University) ;
  • Lee, Ji-Soo (Department of Food and Nutrition, Hanyang University) ;
  • Lee, Hyeon-Gyu (Department of Food and Nutrition, Hanyang University)
  • 성태경 (한양대학교 식품영양학과) ;
  • 이지수 (한양대학교 식품영양학과) ;
  • 이현규 (한양대학교 식품영양학과)
  • Received : 2011.10.12
  • Accepted : 2012.03.07
  • Published : 2012.06.30
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Abstract

The principal objective of this study was to estimate the benzo(a)pyrene contents in commercial vegetable oils available in the Korean market and to assess the effects of various processing steps for vegetable oils on the contents of benzo(a)pyrene. Benzo(a)pyrene content in the studied commercial vegetable oils, crude oils, and raw materials were found to be lower than the maximum levels of 2 ppb. In both refined and pressed oil, the benzo(a)pyrene contents can be reduced through refining steps. However, an evident increase of benzo(a)pyrene contents during both the expeller process for corn oil and the roasting process for sesame oil was observed. This result indicates that the processing procedure, particularly heat treatment and refining steps would be critical in managing the benzo(a)pyrene contents in vegetable oils.

국내에서 유통되는 식용유지의 벤조피렌 함량과 정제유와 압착유의 제조 공정별 벤조피렌 함량변화를 살펴보았다. 측정된 모든 식용유지의 벤조피렌 함량은 허용한계 이하로 검출되긴 하였으나, 동일한 식용유지라 하더라도 벤조피렌 함량에 큰 차이를 나타내어 원료 및 제조 공정에 따라 최종제품의 벤조피렌을 저감화시킬 수 있음을 확인할 수 있었다. 정제유 및 압착유의 제조 공정별 벤조피렌 함량을 분석한 결과, 정제 공정을 거치면서 원유 및 착유 원유에 함유되어있던 벤조피렌의 함량이 꾸준히 감소되는 것을 확인할 수 있었다. 또한 옥수수유의 경우는 옥수수 배아를 압착 착유하는 과정에서 벤조피렌의 발생이 증가되었으며, 참기름의 경우는 참깨의 볶음 과정에서 벤조피렌이 급격히 발생하는 것을 확인할 수 있었다. 즉 식용유지의 제조 공정 중고온 처리과정에서 벤조피렌의 발생량이 급증하였으며, 이후 정제 공정에서 꾸준히 감소되는 현상을 나타내었다. 이러한 결과는 이후 벤조피렌의 저감화를 위한 공정개선의 기초자료로 활용할 수 있을 것이다.

Keywords

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