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http://dx.doi.org/10.3746/jkfn.2006.35.6.791

Evaluation of the Storage Characteristics of Kangjung Added with Gromwell Extracts  

Kim, Jin-Sook (National Rural Resources Development Institute, RDA)
Kim, Tae-Young (National Rural Resources Development Institute, RDA)
Kim, Sang-Bum (National Rural Resources Development Institute, RDA)
Publication Information
Journal of the Korean Society of Food Science and Nutrition / v.35, no.6, 2006 , pp. 791-800 More about this Journal
Abstract
This study examined the effects of gromwell (Lithospermum erythrorhizon) extracts on the storage characteristics of Kangjung. At an increase of $0{\sim}0.25%$, there was no significant difference in the moisture content of wild and cultivated gromwell extract added to Kangjung, whereas there was a significant difference when increased to 0.5%. When compared, the occurrence of lipid oxidation among the controlled gromwell extract group stored at $60^{\circ}C$, resulted in peroxide values exceeding 40 meq/kg which is a maximum value for Hankwa within 12 hours of storage. However, at an increase of 0.25%, the cultivated gromwell extract added group reached limits within 16 hours. Furthermore, at a 0.5% increase in cultivated gromwell and 0.25% in wild gromwell, extract added groups exceeded this limit within 20 hours of storage. Gromwell added Kangjung, a fried food, showed efficiency in suppressing oxidation of fat, more so in the wild gromwell than the cultivated gromwell. In addition, efficiency in suppressing oxidation of fat increased at the 0.5% level than the 0.25% level. In conclusion, it is believed that an unused pigment resource called Lithospermum erythrorhizon, normally reserved for medicinal use, can be distributed as a safe food additive. In addition, as Lithospermum erythrorhizon is a natural antioxidant in fried foods, we believe this satisfies the demand for natural food.
Keywords
Kangjung; Lthospermum erythrorhizon; gromwell; storage;
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Times Cited By KSCI : 6  (Citation Analysis)
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