Korean Chemical Engineering Research

The Korean Institute of Chemical Engineers (한국화학공학회)
권호 표지

Diffusion of Phenol in Apples

사과 내에서 페놀의 확산

  • Park, Hyeon Ju (Research Management Bureau, Rural Development Administration) ;
  • Choi, Dong Ho (School of Applied Chemical Engineering, Chonnam National University) ;
  • Chung, Kyong-Hwan (Mirae Scientific Instruments Inc.) ;
  • Song, Yo Soon (School of Applied Chemical Engineering, Chonnam National University) ;
  • Seo, Gon (School of Applied Chemical Engineering, Chonnam National University)
  • 박현주 (농촌진흥청 연구개발국) ;
  • 최동호 (전남대학교 응용화학공학부) ;
  • 정경환 (미래SI) ;
  • 송요순 (전남대학교 응용화학공학부) ;
  • 서곤 (전남대학교 응용화학공학부)
  • Received : 2006.05.19
  • Accepted : 2006.07.21
  • Published : 2006.12.31
Download PDF
⟨ Previous Next ⟩

Abstract

The accumulation of phenol in apples was measured by exposing them to phenol vapor at $25^{\circ}C$. 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 $5.0{\times}10^{-13}m^2/s$ and $1.5{\times}10^{-10}m^2/s$, respectively.

$25^{\circ}C$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 $5.0{\times}10^{-13}m^2/s$로, 과육에서는 $1.5{\times}10^{-10}m^2/s$로 설정하여 모사하면 사과 내 페놀의 축적량 분율 측정 결과를 잘 모사할 수 있었다.

Keywords

References

  1. Kim, C. C., 'Influence of Heat, Ultraviolet and Ethylene Absorber Treatments on Storage Life in 'Fuji' Apples,' J. Kor. Soc. Hort. Sci., 38(2), 153-156(1997)
  2. Lee, J. C., Kwon, O. W. and Ryou, M. S., 'Effects of Prolong on Keeping Quality and Ethylene Evolution in 'Tsugaru' Apple Fruits,' J. Kor. Soc. Hort. Sci., 27(4), 347-352(1986)
  3. Lee, C. S., Kang, S. M., Hong, S. J., Yun, S. D. and Lee, Y. C., 'Effects of Dichlorprop and $GA_{3}$ on Micro-structure of 'Tsugaru' Apple Fruit Cells during Storage,' J. Kor. Soc. Hort. Sci., 41(2), 187-189(2000)
  4. Veraverbeke, E. A., Verboven, P., Scheerlinck, N., Hoang, M. L. and Nicolai, B. M., 'Determination of the Diffusion Coefficient of Tissue, Cuticle, Cutin and Wax of Apple,' J. Food Eng., 58, 285-294(2003) https://doi.org/10.1016/S0260-8774(02)00387-4
  5. Figen, K. E. and Mustafa, S., 'Modelling of Mass Transfer during Osmotic Dehydration of Apples,' J. Food Eng., 46, 243-250(2000) https://doi.org/10.1016/S0260-8774(00)00084-4
  6. Veraverbeke, E. A., Verboven, P., Oostveldt, P. V. and Nicolai, B. M., 'Prediction of Moisture Loss across the Cuticle of Apple (Malus sylvestris subsp. mitis (Wallr.)) during Storage: Part 1. Model Development and Determination of Diffusion Coefficients,' Postharvest Biol. & Technol., 30, 75-88(2003) https://doi.org/10.1016/S0925-5214(03)00083-8
  7. Veraverbeke, E. A., Verboven, P., Oostveldt, P. V. and Nicolai, B. M., 'Prediction of Moisture Loss across the Cuticle of Apple (Malus sylvestris subsp. mitis (Wallr.)) during Storage: Part 2. Model Simulations and Practical Applications,' Postharvest Biol & Technol., 30, 89-97(2003) https://doi.org/10.1016/S0925-5214(03)00082-6
  8. Kim, S. B. and Kim, C. S., 'Studies on the Pathogenicity and the Ecology of Apple Rot Caused by Botryosphaeria dothidea,' J. Kor. Soc. Hort. Sci., 30(4), 285-293(1989)
  9. Seo, J. H., Hwang, Y. S., Chun, J. P. and Lee, J. C., 'Changes of Phenolic Compounds and Occurrence of Skin Browning and Characterization of Partially Purified Polyphenol Oxidases in Oriental Pear Fruits,' J. Kor. Soc. Hort. Sci., 42(2), 184-188(2001)
  10. Hwang, B. K. and Lee, Y. S., 'Biochemical Characteristics of Apple Rot Caused by Macrophoma sp. II. Phenolic Compound Content in Infected Fruits,' Korean, J. Plant Prot., 21(4), 222- 226(1982)
  11. Constantinides, A. and Mostoufi, N., 'Numerical Methods to Chemical Engineers with MATLAB Applications,' Prentice Hall PTR, New Jersey, 395-399(2000)
  12. Yaws C. L., 'Chemical Properties Handbook,' McGraw-Hill, New York(1999)
  13. Noll, K. E., Gounaris, V. and Hou, W. S., 'Adsorption Technology for Air and Water Pollution Control,' Lewis Publishers Inc., Michigan, 51-53(1992)
  14. Noll, K. E., Gounaris V. and Hou, W. S., 'Adsorption Technology for Air and Water Pollution Control,' Lewis Publishers Inc., Michigan, 49-70(1992)