from The Century Dictionary.
- noun A crystalline bitter principle, difficultly soluble in water and alcohol, which is found in the bark of the horse-chestnut tree, Æsculus Hippocastanum.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) A glucoside obtained from the
Æsculus hippocastanum, or horse-chestnut, and characterized by its fine blue fluorescent solutions.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry
Coumarin glucosidewhich exists in horse-chestnuts, dapnin, and California Buckeye.
from Wiktionary, Creative Commons Attribution/Share-Alike License
The species Aesculus hippocastanum has been studied and has been found to contain saponin, tannin, and the glycoside, esculin.
In 1870, according to Dymock, Broughton analyzed the fresh bark and reported that the bitter taste was due to _esculin_, which after drying and coming in contact with decomposing organic matter is transformed into the almost tasteless _esculetin_.