Journal of the Korean Wood Science and Technology
- Volume 26 Issue 1
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- Pages.7-13
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- 1998
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- 1017-0715(pISSN)
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- 2233-7180(eISSN)
Studies on the Technical Development of Traditional Korean Golden Varnish (Hwangchil)(II) - Chemical Composition and Coatings-oil Characteristics of the Exudates and Bark-extractives of Hwangchil-namu(Dendrogapax morbifera Lev.) -
전통 황칠 도료 개발에 관한 연구 (II) - 황칠나무 수피 추출물 및 삼출액의 화학적 조성과 도료용 오일특성 -
- Lim, Kie-Pye (College of Agriculture, Chonnam National University) ;
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Jung, Woo-Yang
(College of Agriculture, Chonnam National University)
- Received : 1997.05.13
- Published : 1998.03.30
Abstract
In order to reconstruct the traditional technology of Korean golden varnish(Hwangchil) made from the exudates of D. morbifera, this study in the second step was carried out to analyze the chemical composition and oil properties of the exudates for coatings and bark extractives made from the trees of D. morbifera more than 20 years old grown in Wando and Jejudo islands in the southwestern part of Korean peninsula according to the physiological seasons. The results obtained are as follows: 1. The exudates appeared to be a phytoalexin because it exudated after several days in tapping only in summer season. 2. Both the exudates and bark-extracts with acetone contained 50~60% unsaponifiables and 30~50% saponifiables 3. A major component of essential oil in bark-extractives was
Keywords
- Korean golden varnish (Hwangchil);
- Hwangchil-namu;
- ether extractives;
- barks;
- ${\beta}$-cubebene;
- ${\delta}$-cadinene;
- linoleic acid