Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Establishment of activated carbon treatment conditions and analytical methods to reduce polycyclic aromatic hydrocarbons contents in soybean oil and perilla oil

콩기름과 들기름 내 polycyclic aromatic hydrocarbons 저감화를 위한 활성탄 처리조건 및 분석법 확립

  • Park, Young-Ae (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Jung, So-Young (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Kim, Nam-Hoon (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Lee, Young-Ju (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Jo, Ju-Yeon (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Kim, Ouk-Hee (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Kim, Jin-Kyung (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Hwang, In-Sook (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Hong, Mi-Sun (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Lee, Sang-Me (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Oh, Young-Hee (Seoul Metropolitan Government Research Institute of Public Health and Environment) ;
  • Jeong, Kwon (Seoul Metropolitan Government Research Institute of Public Health and Environment)
  • 박영애 (서울시보건환경연구원) ;
  • 정소영 (서울시보건환경연구원) ;
  • 김남훈 (서울시보건환경연구원) ;
  • 이영주 (서울시보건환경연구원) ;
  • 조주연 (서울시보건환경연구원) ;
  • 김욱희 (서울시보건환경연구원) ;
  • 김진경 (서울시보건환경연구원) ;
  • 황인숙 (서울시보건환경연구원) ;
  • 홍미선 (서울시보건환경연구원) ;
  • 이상미 (서울시보건환경연구원) ;
  • 오영희 (서울시보건환경연구원) ;
  • 정권 (서울시보건환경연구원)
  • Received : 2018.09.10
  • Accepted : 2018.11.26
  • Published : 2018.12.31
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Abstract

After adding eight different kinds of PAHs to soybean oil and perilla oil samples, changes of PAHs contents after activated carbon treatment with different conditions of activated carbon concentration, temperature, and time were investigated. PAHs contents decreased in both soybean oil and perilla oil with increasing activated carbon concentrations. Neither of the PAHs were detected in the soybean oil samples after the addition of only 0.05% of activated carbon, while the contents of most kinds of PAHs decreased below the limit of quantification in the perilla oil samples after the addition of up to 0.4% of activated carbon. PAHs contents decreased as the temperature of the activated carbon treatment increased, and most PAHs were not detected in the soybean oil samples at temperatures above $80^{\circ}C$. With regards to the activated carbon treatment time, the PAHs contents also decreased as the treatment time increased. In case of soybean oil, four kinds of PAHs were not detected after treatment with 0.05% of activated carbon at $70^{\circ}C$ for 10 min.

콩기름과 들기름에 8종의 PAHs를 첨가하여 활성탄 농도, 처리 온도, 처리시간에 따른 PAHs 함량변화를 조사하였다. 콩기름과 들기름 모두 활성탄의 농도가 높을수록 PAHs 함량이 감소되었고, 콩기름은 활성탄 0.05% 첨가만으로도 8종 PAHs가 모두 검출되지 않는 효과를 나타내었으며 들기름은 0.4%까지 첨가하였을 때 대부분 정량한계 이하로 감소되었다. 활성탄 처리온도가 높아질수록 콩기름과 들기름의 PAHs 함량이 감소되었고 콩기름의 경우, $80^{\circ}C$ 이상의 온도에서 대부분의 PAHs가 검출되지 않았다. 활성탄 처리시간을 증가시켰을 때 콩기름과 들기름의 PAHs 함량이 감소되었고, 콩기름의 경우, 활성탄 농도 0.05%, 처리온도 $70^{\circ}C$ 조건에서 10분 처리하였을 때 4종의 PAHs가 검출되지 않았다. 들기름은 콩기름과 동일한 조건으로 활성탄 처리하였을 때 PAHs 감소효과가 낮게 나타났다. 유지 종류별로 활성탄 처리에 의한 PAHs 감소율은 다르게 나타났으나 감소효과는 탁월한 것으로 보아 본 연구를 산업적으로 적용시켜, 사용한 식용유지를 재활용할 수 있는 방안을 마련하는 근거가 될 것으로 기대된다. 또한 우리나라는 식용유지 중 벤조피렌 한 종류에만 기준이 설정되어 있어서 유럽에서와 같이 PAHs 총합 및 개별기준으로 설정하여 규제를 강화시킬 필요가 있다. 그러므로 앞으로 식용유지 중 벤조피렌 뿐만 아니라 여러 종류의 PAHs에 대한 모니터링 분석을 실시하여 규제강화를 위한 근거를 마련할 필요가 있다. 본 연구는 콩기름과 들기름에 활성탄 처리하여 PAHs를 감소시킴으로써 식용유지에서 효과적으로 PAHs를 제거할 수 있는 최적조건을 제시하였고, 식용유지 중 PAHs의 기준을 설정하는데 필요한 근거자료로 사용할 수 있을 것으로 생각된다.

Keywords

SPGHB5_2018_v50n6_565_f0001.png 이미지

Fig. 2. Chromatograms of 8 kinds of polycyclic aromatic hydrocarbons (PAHs) according to wavelengths in soybean oil blank.

SPGHB5_2018_v50n6_565_f0002.png 이미지

Fig. 3. Decrease of polycyclic aromatic hydrocarbons (PAHs) contents after the addition of activated carbon in soybean oil and perilla oil.

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Fig. 4. Changes of polycyclic aromatic hydrocarbons (PAHs) contents of soybean oil and perilla oil after the addition of activated carbon for different treatment time.

SPGHB5_2018_v50n6_565_f0004.png 이미지

Fig. 1. Chromatograms of 8 kinds of polycyclic aromatic hydrocarbons (PAHs) standards (10 μg/kg) according to wavelengths.

Table 1. Analytical condition of polycyclic aromatic hydrocarbons (PAHs) by HPLC-FLD

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Table 2. The correlation coefficient, limit of detection (LOD), limit of quantification (LOQ) and coefficient of variation (CV) of polycyclic aromatic hydrocarbons (PAHs) by HPLC-FLD

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Table 3. Recovery of polycyclic aromatic hydrocarbons (PAHs) by HPLC-FLD in soybean oil and perilla oil

SPGHB5_2018_v50n6_565_t0003.png 이미지

Table 4. Change of polycyclic aromatic hydrocarbons (PAHs) contents of soybean oil and perilla oil by activated carbon treatment temperature

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