DOI QR코드

DOI QR Code

Kinetics of Initial Water Vapor Adsorption by Inonotus obliquus Mushroom Powders

  • Lee, Min-Ji (Department of Food Science and Engineering, Daegu University) ;
  • Seog, Eun-Ju (Division of Food Engineering, Daegu University) ;
  • Lee, Jun-Ho (Division of Food Engineering, Daegu University)
  • Published : 2007.06.30

Abstract

Water vapor adsorption kinetics of Inonotus mushroom powders were investigated in temperature and water activity ranges of 20 to 40$^{\circ}C$ and 0.30 to 0.81, respectively. Initial water vapor adsorption rate of mushroom powders increased with increases in temperature and water activity. The temperature dependency of water activity followed the Clausius-Clapeyron equation. The net isosteric heat of sorption increased with an increase in water activity. Water vapor adsorption kinetics of the mushroom powders can be well described by a simple empirical model. Temperature dependency of the reaction rate constant followed the Arrhenius relationship. The activation energy ranged from 56.86 to 91.35 kJ/mol depending on water activity. Kinetic compensation relationship was observed between k$_o$ and E$_a$ with the isokinetic temperature of 790.27 K.

Keywords

water vapor adsorption;kinetics;Inonotus obliquus;mushroom powder

References

  1. Cha JY, Jun BS, Kim JW, Park SH, Lee CH, Coh YS. 2006. Hypoglycemic effects of fermented Chaga mushroom (Inonotus obliqus) in the diabetic Otsuka Long- Evans Tokushima Fatty (OLETF) rat. Food Sci Biotechnol 15: 739-745
  2. Reid DA. 1976. Inonotus obliquus (Pers. Ex Fr.) pilat in Britain. Trans Brit Myco Soc 67: 329-332 https://doi.org/10.1016/S0007-1536(76)80140-4
  3. Saar M. 1991. Fungi in Khanty folk medicine. J Ethnopharm 31: 175-179 https://doi.org/10.1016/0378-8741(91)90003-V
  4. Wasser SP. 2002. Medicinal mushrooms as a source of antitumor and immunomodulating polysaccharides. Appl Micro Biotechnol 60: 258-274 https://doi.org/10.1007/s00253-002-1076-7
  5. Kim YO, Han SB, Lee HW, Ahn HJ, Yoon YD, Jung JK, Kim HM, Shin CS. 2005. Immuno-stimulating effect of the endo-polysaccharide produced by submerged culture of Inonotus obliquus. Life Sci 77: 2438-2456 https://doi.org/10.1016/j.lfs.2005.02.023
  6. Gothandapani L, Parvathi K, Kennedy ZJ. 1997. Evaluation of different methods of drying on the quality of oyster mushroom (Pleurotus sp.). Drying Technol 15: 1995-2004 https://doi.org/10.1080/07373939708917344
  7. Kahlos K. 1994. Antifungal activity of cysteine, its effect on C-21 oxygenated lanosterol derivatives and other lipid in Inonotus obliquus, in vitro. Appl Microbio Biotechnol 3: 339-385
  8. Mizuno T, Zhuang C, Abe K, Okamoto H, Kiho T, Ukai S, Leclerc S, Meijer L. 1999. Antitumor and hypoglycemic activities of polysaccharides from the sclerotia and mycelia of Inonotus obliquus (Per.:Fr.) Pil. (Aphyllo-phoromycetideae). Int J Med Mushrooms 1: 301-316 https://doi.org/10.1615/IntJMedMushr.v1.i4.20
  9. Solomon PW, Alexander LW. 1999. Therapeutic effects of substances occurring in higher Basidiomycetes mushrooms: a modern perspective. Immunopharm 19: 65-96
  10. Lee MJ, Lee JH. 2007. Moisture sorption isotherm characteristics of chaga mushroom powder as influenced by particle size. Food Sci Biotechnol 16: 154-158
  11. AOAC. 1984. Official Methods of Analysis. 14th ed. Association of Official Analytical Chemists, Virginia. p 613
  12. Hsu KH, Kim CJ, Wilson LA. 1983. Factors affecting water uptake of soybeans during soaking. Cereal Chem 60: 208-211
  13. Rhim JW. 2003. Hydration kinetics of soybeans. Food Sci Biotechnol 12: 303-306
  14. Despond S, Espuche E, Domard A. 2001. Water sorption and permeation in chitosan films: relation between gas permeability and relative humidity. J Polym Sci Part B: Polym Phys 39: 3114-3127 https://doi.org/10.1002/polb.10064
  15. Cho SY, Rhee C. 2002. Sorption characteristics of soy protein films and their relation to mechanical properties. Lebensm Wiss Technol 35: 151-157 https://doi.org/10.1006/fstl.2001.0829
  16. Kim JN, Rhim JW. 2004. Kinetics of water vapor adsorption by sweet potato starch-based edible films. Food Sci Biotechnol 13: 616-621
  17. Sorpade PA, Obekpa JA. 1990. Modelling water absorption in soybean, cowpea and peanuts at three temperatures using Peleg's equation. J Food Sci 55: 1084-1087 https://doi.org/10.1111/j.1365-2621.1990.tb01604.x
  18. Ferro Fontan C, Chirife J, Sancho E, Iglesias HA. 1982. Analysis of a model for water sorption phenomena in foods. J Food Sci 47: 1590-1594 https://doi.org/10.1111/j.1365-2621.1982.tb04989.x
  19. Cui Y, Kim DS, Park KC. 2005. Antioxidant effect of Inonotus obliquus. J Ethnopharm 96: 79-85 https://doi.org/10.1016/j.jep.2004.08.037
  20. Yapar S, Helvaci SS, Peker S. 1990. Drying behavior of mushroom slices. Drying Technol 8: 77-99 https://doi.org/10.1080/07373939008959865
  21. Mizuno T. 1999. The extraction and development of antitumor-active polysaccharides from medicinal mushrooms in Japan. Int J Med Mushrooms 1: 9-29 https://doi.org/10.1615/IntJMedMushrooms.v1.i1.20
  22. Kim YO, Park HW, Kim JH, Lee JY, Moon SH, Shin CS. 2006. Anti-cancer effect and structural characterization of endo-polysaccharide from cultivated mycelia of Inonotus obliquus. Life Sci 79: 72-80 https://doi.org/10.1016/j.lfs.2005.12.047
  23. Rhim JW. 2002. Kinetic compensation relations for texture changes in sweet potatoes during heating. Food Sci Biotechnol 11: 29-33