• Korean Journal of Pharmacognosy
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• v.41 no.3
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• pp.174-179
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• 2010

Activity guided isolation of 80% acetone extract from the barks of Acer ginnala Maxim. yielded five gallotannins [6-galloyl-1,5-anhydroglucitol (ginnalin B) (1), acertannin (3,6-digalloyl-1,5-anhydroglucitol) (2), methyl gallate (3), acertannin (2,6-digalloyl-1,5-anhydroglucitol) (4) and gallic acid (5)]. All of these isolated compounds from Acer ginnala(1-5) were firstly isolated from Acer ginnala Maxim. And contents of compounds from barks of Acer ginnala (Comp. 1: 0.73$\pm$0.002%, Comp. 2: 0.48$\pm$0.001%, Comp. 3: 0.66$\pm$0.002%, Comp. 4: 1.05$\pm$0.002% and Comp. 5: 0.29$\pm$0.001%) were evaluated by HPLC analysis. And, in order to evaluate anti-oxidative activities on Comp. 1-5 isolated from Acer ginnala, DPPH radical scavenging activity was measured in vitro. All of these isolated compounds from Acer ginnala exhibited potent DPPH radical scavenging activities.

• Korean Journal of Pharmacognosy
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• v.27 no.3
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• pp.212-218
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• 1996

Two phenolcarboxylic acids. five flavonoids and one hydrolysable tannin were isolated from the leaves of Acer ginnala Maxim. On the basis of chemical and spectroscopic evidence, the strutures of these compounds were established as gallic acid, ethylgallate, acertannin, quercetin, quercitrin, isoquercitrin, rutin, $quercetin-3-O-{\alpha}-_L-rhamnopyranosyl-2'-gallate$.

• Korean Journal of Pharmacognosy
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• v.49 no.1
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• pp.7-14
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• 2018

We isolated gallotannin, 2,6-digalloyl-1,5-anhydroglucitol, known as acertannin (1), from the barks and xylems of Acer ginnala Maxim. It is a genus of Acer species of shrubs in the family Aceraceae. A. ginnala grows in Korea, Japan and Mongolia. We accomplished the structure elucidation by confirming that the result of $^1H$,$^{13}C-NMR$,MS spectrum data was similar to previous references. We measured DPPH and ABTS radical scavenging activity in vitro to evaluate anti-oxidative activities on acertannin isolated from A. ginnala. Acertannin from A. ginnala exhibited potent DPPH and ABTS radical scavenging activities. We examined the antioxidant and apoptosis modulative effects. This examination shows that A. ginnala has not only 1,1-diphenyl-2-picryhydrazyl(DPPH) radical scavenging activity and ABTS radical scavenging activity, but also human hair dermal papilla cell protection effects. These results indicate that the barks and xylems of A. ginnala might be developed as a potent anti-oxidant, hair growth agent, and ingredient for related new functional cosmetic materials.

• Korean Journal of Pharmacognosy
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• v.33 no.4 s.131
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• pp.301-304
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• 2002

Two triterpenoid saponine were isolated from the stems of Acer ginnala Maxim. The structures of triterpenoid saponins were established as ilexoside O, $3-O-{\alpha}-L- rhamnopyranosyl(1{\rightarrow}2)-{\beta}-D-glucopyranosyl(1{\rightarrow}2)-{\beta}-D-xylopyranosyl-pubescenolic$ acid 28-{\beta}-D-glucopyranosyl$ ester(1) and ilexoside K, $3-O-{\beta}-D-glucopyranosyl(1{\rightarrow}2)-{\beta}-D-xylopyranosyl-pubes-cenolic$ acid $28-{\beta}-D-glucopyranosyl$ ester(2). Their chemical structures have been elucidated on the basis of spectral methods.

• Proceedings of the Zoological Society Korea Conference
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• 2003.08a
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• pp.117.2-117
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• 2003