Acknowledgement
Supported by : Ministry of Science and Technology
Journal of Applied Biological Chemistry
- Volume 42 Issue 3
- /
- Pages.151-153
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- 1999
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- 1976-0442(pISSN)
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- 2234-7941(eISSN)
Detection of Fake Jindo Hongju Using the pH-dependent Color Change of Gromwell (Lithospermum erythrorhizon) Pigment
-
Kim, Jungho
(Department of Agricultural Chemistry, Sunchon National University)
;
- Bae, Yeong-Hwan (Department of Agricultural Machinery Engineering, Sunchon National University) ;
- Choi, Kap-Seong (Department of Food Science and Technology, Sunchon National University)
- Received : 1999.08.10
- Published : 1999.09.30
Abstract
Gromwell (Lithospermum erythrorhizon) pigment solution and Jindo Hongju prepared in the laboratory showed characteristic pH-dependent color changes and a shift in absorption maxima. This phenomenon was not observed in the solution of the artificial food colorant Red No. 2 which was suspected to be used in the manufacture of fake Jindo Hongju. A few fake products could be detected by using the pH-dependent shift in absorption maxima among the Jindo Hongju on market.