• The Journal of Natural Sciences
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• v.18 no.1
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• pp.91-97
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• 2007

The Korean name "Bizooki" tree was named by the shape of winter bud which is like a slim bow. There are four scientific names in the tree which are Cleyera japonica Thunberg, Cleyera ochnacea DC, Sakakia ochnacea Nakai, and Ternstroemia gymnanthera. And the English name are Japanese Ternstroemia and Japanese Cleyera. "Bizooki" tree has planted at Buddhist temples in Japan for the ritual. The best result of stem cutting in "Bizooki" tree, 100 percent of rooting, could be accomplished in July when cuttings were done on the mixture-soil containing the same rates by volume of vermiculite, peatmoss and perlite with cuts processed with IBA 1,000 mg/l under the circumstances that 70% of shade, plastic mulching, and mist were conditioned.

• Archives of Pharmacal Research
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• v.28 no.8
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• pp.885-888
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• 2005

Jacaranone and related compounds (1-3) were isolated, along with three triterpenes (4-6), from the fresh fruits of Ternstroemia japonica. The compounds were identified as jacaranone (1), 3-hydroxy-2,3-dihydrojacaranone (2), 3-methoxy-2,3-dihydrojacaranone (3), 3-O-acetyl­oleanolic acid (4), 3-O-acetylursolic acid (5), and ursolic acid (6). Jacaranone and its derivatives were isolated for the first time from Theaceae. Of the isolated compounds, compound 3 is a new compound. Jacaranone (1) exhibited weak antioxidative effect on 1, 1-diphenyl-2-picryl-hydrazyl (DPPH) radical.

• Proceedings of the PSK Conference
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• 2003.10b
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• pp.194.1-194.1
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• 2003

Ternstroemia japonica (Theaceae) is widely distributed in Korea, Japan, Taiwan and China. The tree is a useful source of lumber, dye and horticulture. Its fruits have been used as folk medicine in Japan for the treatment of chest pain or numbness. Previously, we have isolated saponins and jacaranone derivatives from the fruits. In our continuous study on the same plant, the leaves of Ternstroemia japonica were extracted with MeOH and the MeOH extract was fractionated with solvents. The n-BuOH soluble fraction was separated by repeated column chromatographies on silica gel and Sephadex LH-20, and further purified by reversed phase HPLC. (omitted)

• Korean journal of applied entomology
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• v.38 no.1
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• pp.15-17
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• 1999

An Olethreutine species Eucoegenes ancyrota (Meyrick), which tie together 2-3 leaves of Ternstroemia japonica Thunb. and feed it, is reported for the first time from Korea with morphological character of larva and adult, and a brief biology.

• Korean Journal of Food Science and Technology
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• v.23 no.1
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• pp.68-75
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• 1991

The seed oil of Ternstroemia gymnanthera. a species of the Ternstroemiaceae, is mainly composed of triglyceride(92.4%), followed by polar lipids(5.9%), sterol(1.2%) and pigments(0.5%). This oil contains 4.8% of cis-11, 12-methylene octadecanoic acid(lactobacillic acid) in the fatty acid composition of the total oil. This identification is based on information from non-urea inclusion formation, silver nitrate impregnated silica gel column and gas liquid chromatography, $^1H-&\;^{13}C-nuclear$ magnetic resonance and mass spectroscopy. Smaller amounts(0.1%) of presumptive 9, 10-methylene hexadecanoic acid(dihydro malvalic acid) is also detected. The major fatty acids in this oil are C18 : 1(36.1%), C18: 2(30.9%), C16: 0(15.1%), C16: 1(7.6%) and C18: 0(3.4%).

• Journal of the Society of Cosmetic Scientists of Korea
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• v.48 no.1
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• pp.39-46
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• 2022

In this study, we tried to find out the value of using Vietnamese Ternstroemia kwangtungensis Merr. (TK) extracts as a functional material. As a result of measuring the level of Nrf2 expression of TK, 50% ethanol extract TK leaf showed the highest activity at a concentration of 200 ㎍/mL. In order to confirm the stability of the extract over time at room temperature, UPLC was performed, and stability was maintained because the patterns of the UV spectrum pattern were the same. In order to confirm the antioxidant efficacy of TK, the activity increased as the concentration increased as a result of measuring electron donating and ABTS⁺ radical scavenging ability. At 1,000 ㎍/mL, they showed effects of 94.6% and 90.8%, respectively. As a result of measuring the tyrosinase inhibitory activity showed an inhibitory ability of 24.4% at a concentration of 1,000 ㎍/mL. In addition, as a result of examining the elastase inhibitory activity of the extract was increased in a concentration-dependent manner, and it was confirmed that the inhibitory activity was 42.7% at 1,000 ㎍/mL. From these results, it was confirmed that the TK extract was valuable as a natural material for cosmetics.

• Proceedings of the PSK Conference
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• 2002.04a
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• pp.199.3-200
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• 2002

• Proceedings of the PSK Conference
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• 2000.10a
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• pp.128.1-128.1
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• 2000

• Proceedings of the PSK Conference
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• 2001.04a
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• pp.196.2-197
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• 2001

• Proceedings of the PSK Conference
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• 2001.04a
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• pp.198.3-199
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• 2001