• Korean Journal of Pharmacognosy
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• v.25 no.4 s.99
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• pp.307-310
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• 1994

A hitherto unknown substance was isolated from the commercial sample of Aloe arborescens, which was shown to be the 4',6'-O-ethylidene-aloenin, most likely an artifact caused by hot-air drying procedure for the product preparation.

• Natural Product Sciences
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• v.1 no.1
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• pp.55-60
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• 1995

In the course of evaluation of hepatoprotective components against alcohol-induced toxicity from Aloe spp., the methanol extract was found to cause a significant inhibition of rat liver cytosolic alcohol dehydrogenase activity. Systematic fractionation of active tractions monitored by bioassay led to isolation of four compounds; aloe-emodin, aloenin, ethylidene-aloenin and ${\beta}-sitosterol$, which were estimated as active principles for inhibition of c-ADH and c-ALDH activities in vitro.

• Korean Journal of Pharmacognosy
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• v.26 no.3
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• pp.244-247
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• 1995

Two compounds were newly isolated from the leaf exudates of Aloe capensis and identified as 10-C-rhamnosyl aloe-emodin anthrone and aloenin B, on the basis of chemical and spectroscopic evidences.