Journal of Ginseng Research
- Volume 13 Issue 1
- /
- Pages.92-97
- /
- 1989
- /
- 1226-8453(pISSN)
- /
- 2093-4947(eISSN)
Study on the Enzyme Activity in Leaf-Burning Disease of Panax ginseng C.A. Meyer
인삼엽요병에서 효소활성도의 변화
Abstract
This study investigated the effects of high light intensity (100 KLw) and high temperature (45 ℃, dark) on enzyme (glucose-6-phosphate dehydrogenase, acid phosphatase, catalase, peroxidase, and proteinase) activities and characteristics of Panax ginseng C.A. Meyer leaves. Enzyme activity and protein content decreased rapidly under treatment with high light intensity In P ginseng the thermal stabilities of catalase and peroxidase were high (above 70%), and the coagulation rates of soluble proteins were low (below 17%). Therefore, the decrease in enzyme activity and protein content was not caused by increase in leaf temperature due to the high light intensity, but by increase in proteolytic activities. The photochemical formation rate of superoxide radical (O-2) was higher in the P ginseng leaf extracts than in Solanum nigmm, and was accelerated by addition of crude saponin to the buffer extracts.
인삼엽을 강광(100 KLuw) 및 고온(