화학공학소재연구정보센터
홈 로그인 로그아웃 연락처 사이트맵
Korean Chemical Engineering Research, Vol.44, No.6, 572-578, December, 2006
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사과 내에서 페놀의 확산
Diffusion of Phenol in Apples
박현주, 최동호1, 정경환2, 송요순1, 서곤1, †
  • 농촌진흥청 연구개발국, 441-707 경기도 권선구 서둔동 250
  • 1전남대학교 응용화학공학부, 500-757 광주광역시 북구 용봉동 300
  • 2미래SI 응용화학공학부, 500-757 광주광역시 북구 용봉동 300 전남대학교 산학협력공학관 711호
Hyeon Ju Park, Dong Ho Choi1, Kyong-Hwan Chung2, Yo Soon Song1, and Gon Seo1, †
  • Research Management Bureau, Rural Development Administration, 250 Seodundong, Kwonsungu, Suwon 441-707, Korea
  • 1School of Applied Chemical Engineering, Chonnam National University, 300 Yongbongdong, Gwangju 500-757, Korea
  • 2Mirae Scientific Instruments Inc., 711 BI Center, Chonnam National University, 300 Yongbongdong, Gwangju 500-757, Korea
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초록
25 ℃에서 페놀 증기에 노출된 사과에서 페놀의 축적량을 측정하였다. 과피와 과육에서 페놀의 연계 확산을 가정하여 구형 매질에서 비정상상태 확산속도식을 도출하였다. 계산으로 구한 페놀의 축적량 분율 곡선을 실험 결과와 비교하여 과피와 과육에서 페놀의 유효확산계수를 추정하였다. 조직이 치밀한 과피에서 페놀의 확산이 느려 페놀 증기에 노출된 지 5일 후에야 사과의 과육에서 페놀이 검출되었다. 페놀의 유효확산계수를 과피에서는 5.0×10-13 m2/s로, 과육에서는 1.5×10-10 m2/s로 설정하여 모사하면 사과 내 페놀의 축적량 분율 측정 결과를 잘 모사할 수 있었다.
The accumulation of phenol in apples was measured by exposing them to phenol vapor at 25 ℃. The effective diffusivities of phenol in the rind and flesh of apples were estimated by comparing the experimentally determined fractional uptake curve with the simulated ones based on a consecutive diffusion model in the rind and flesh. Phenol was detected in the flesh of apples after 5 day exposure due to its slow diffusion in the rind. The consecutive diffusion model of phenol in apples simulated well the measured fractional uptake curve when the effective diffusivities of phenol in the rind and flesh were assumed to be 5.0×10-13 m2/s and 1.5×10-10 m2/s, respectively.
Keywords:Apple;Phenol;Diffusion;Simulation
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