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KMID : 0903520080510020114
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
2008 Volume.51 No. 2 p.114 ~ p.118
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The Conversion of Ginsenosides by Extrusion Molding
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Ryu Jae-Hyung
Lee Chun-Ying
Ahn Moon-Sub
Kim Jang-Won
Kang Wie-Soo
Lee Hae-Ik
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Abstract
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Ginseng treated with several treatment conditions of various acids to search hydrolysates on the basis of increased biological activity and modified structure. In the result of acid treatment, the conversion rate of ginsenoside Rg3, Rk1 and Rg5 was highest when ginseng treated with citric acid. After added citric acid to ginseng extract, boiled at 100oC for 1 hour and add enzyme, which is examined change by time. It compared with group which did not treated acid. Two groups became difference according to enzyme but the generation rate of ginsenoside Rg3, Rk1 and Rg5 did not show difference greatly. Also, the generation rate of ginsenoside Rg3, Rk1 and Rg5 by time passes did not show difference. The generation rate of ginsenoside Rg3, Rk1 and Rg5 increased when increased acid concentration, temperature and time. We did exclusion molding to shorten treatment time. In the result of ginseng treated with citric acid of various concentrations at various temperatures as time passes by extrusion molding, the generation rate of ginsenoside Rg3, Rk1 and Rg5 was highest when ginseng treated with 3% citric acid at 160oC for 20 minutes. In addition, total saponin amount of ginseng treated with 3% citric acid at 160oC for 20 minutes was about 11% higher than ginseng heated at 120oC for 3 hours. These results indicated that our exclusion molding process more effective, compared to traditional red ginseng manufacturing process.
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KEYWORD
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Citric acid, Extrusion molding, Ginsenoside
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