Abstract

The extraction of ginseng saponins with near critical or supercritical ammonia(SCF-NH$_3$) was carried out at 80$^{\circ}C$-160$^{\circ}C$ and ammonia densities of 339.8-525 $mg/cm^3$. In order to evaluate brownish color of white ginseng extracts, a spetrophotometric method was applied in ultraviolet and visible range. The extractibilities of ginseonoside $Rb_1$, -$Rb_2$, -Rc, -Rd, -Re, -Rf, $-Rg_1$, and $-Rg_2$ were determined by high performance liquid choromatography. The best extractability was 7.36% at 133$^{\circ}C$ and 403 $\pm$ 24.605 $mg/cm^3$. In the case of the high extraction temperature, it is thought that extraction times can be reduced and the selectivity of protopanaxatriol can be increased. The brownish color of extracts is affected by temperature and extractability. When extraction temperature is between 132$^{\circ}C$ and 140$^{\circ}C$, it is shown that the range is the retrograde region where extractablility decrease with increasing temperature.

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1. J. Proc. R. Soc. London v.29 J. B. Hannay;J. Hogarth
2. Petroleum (London) v.23 T. P. Zhuze
3. Phys. Chem. v.88 U. Liedtke;H. Lentz
4. J. Chem. Eng. Data. v.25 M. Mchugh;M. E. Paulaties
5. Ann. Rev. Pharm. v.9 I. I. Brekhman;I. V. Dardymov
6. J. Kor. Pharm. Soc. v.16 B. H. Han;Y. N. Han;L. K. Woo
7. Analyst v.110 H. L. Lee;M. E. Meyergoff
8. J. Kor. Agric. Chem. Soc. v.25 J. H. Do(et al.)
9. J. Food Sci. v.28 H. S. Burton
10. J. Chrom. v.212 H. R. Schulten;F. Soldati
11. Planta medica v.38 O. Sticher;F. Soldati
12. J. Kor. Ginseng Sci. v.4 J. H. Choi;W. J. Kim;K. D. Park;H. S. Sung
13. J. Kor. Ginseng Sci. v.4 K. J. Choi;M. W. Kim;H. S. Sung;S. K. Hong
14. J. Kor. Food Sci. Tech. v.14 J. H. Choi;D. H. Kim;H. S. Sung;W. J. Kim;S. K. Oh
15. J. Kor. Agric. Chem. Soc. v.24 J. H. Choi;W. J. Kim;J. W. Yang;H. S. Sung;S. K. Hong
16. Ber. Bunsenges. Phes. Chem. v.87 G. L. Robling;E. U. Franck
17. Chem. Letters Y. Ikvshima;N. Saito;K. Hatakeda;S. Ito;T. Asano;T. Goto
18. Tables on the Thermophysical Properties of Liquid and Gases N. B. Vargaftik
19. Russ. J. Phys. Chem. (Engl. Transl) v.38 Y. V. Tsekhanskaya;M. B. Iomtev;E. V. Muskina
20. German Patent, 2, 357 O. Vitzthum;P. Hubert
21. Rev. Chem. Eng. v.I M. E. Paulaties;V. J. Krunkonis;P. T. Kurnik;R. C. Reid
22. J. Amer. Oil. Chem. Soc. v.62 G. R. List;J. P. Friedrich
23. J. Agric. Food. Chem. v.28 E. Stahl;E. Schutz;H. K. Mangold
24. Angew. Chem. Int. Ed. Engl. v.17 P. Hubert;O. G. Vizthum
25. Supercritical Fluid Extraction and Chromatography R. T. Marentis;B. A. Charpentier(ed.);M. R. Sevenants(ed.)
26. J. Phys. Chem. v.58 A. W. Francis
27. J. Am. Chem. Soc. v.70 G. A. M. Diepen;F. E. C. Scheffer
28. J. Argic. Food. Chem. v.24 T. Shibamoto;R. A. Berzhard