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The Effect of Supercritical Carbon Dioxide Treatment on Physical Properties Improvement of Fulvic Acid
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  • Journal title : KSBB Journal
  • Volume 26, Issue 6,  2011, pp.523-528
  • Publisher : Korean Society for Biotechnology and Bioengineering
  • DOI : 10.7841/ksbbj.2011.26.6.523
 Title & Authors
The Effect of Supercritical Carbon Dioxide Treatment on Physical Properties Improvement of Fulvic Acid
Lee, Joo-Hee; Park, Jung-Nam; Chun, Byung-Soo;
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 Abstract
The objective of this study was to reduce negative elements such as volatile organic compounds (VOCs) from fulvic acid using supercritical carbon dioxide () and to measure concentration and chromaticity of fulvic acid before and after treatment of . Fulvic acid was treated at different experimental conditions; pressures of 100, 120 and 150 bar at for 2 h. The composition of VOCs from fulvic acid was evaluated by GC-MS analysis, and the concentration was quantitatively analyzed using UV-spectrometer from fulvic acid at different experimental conditions. Also, the chromaticity of fulvic acid was evaluated using spectrophotometer. Though concentration and chromaticity of fulvic acid were not nearly changed, the VOCs from fulvic acid was remarkably decreased at 150 bar, and 2 h. Reduction of VOCs through the is expected to contribute to quality improvement of fulvic acid.
 Keywords
Fulvic acid;supercritical carbon dioxide;volatile organic compounds;GC-MS;
 Language
Korean
 Cited by
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