Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A cyclic ester, or a compound containing a cyclic ester, formed by the intramolecular condensation of a hydroxy carboxylic acid.
from The Century Dictionary.
- noun A colorless volatile liquid possessing an aromatic smell, produced, along with lactide, by the dry distillation of lactic acid.
from the GNU version of the Collaborative International Dictionary of English.
- noun (Chem.) One of a series of organic compounds, being cyclic esters which may be regarded as anhydrides of certain hydroxy acids. In general, they are colorless liquids, having a weak aromatic odor. They are so called because the typical lactone is derived from
lactic acid.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun organic chemistry A
cyclic intramolecular ester derived from ahydroxy acid .
Etymologies
from The American Heritage® Dictionary of the English Language, 4th Edition
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Examples
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A lactone is a cyclic ester, a type of lactide, which is formed from dehydrated lactic acid.
Not all "Lact" Words Are the Same Steve Carper 2008
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'celloxin' C_ {6} H_8 {O} _ {6} with 1-4 mols. unaltered cellulose; and the former they particularly refer to as a lactone of glycuronic acid.
Researches on Cellulose 1895-1900 C. F. Cross
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To communicate with its brethren, it uses a molecule called acyl-homoserine lactone, or AHL.
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A true challenge indeed, when you cannot use Benzyl acetate; not to mention (E)-ocimene, linalool, asmine lactone, or gamma-decalactone (used to create gardenia headspace).
Archive 2008-04-01 Ayala Sender 2008
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A true challenge indeed, when you cannot use Benzyl acetate; not to mention (E)-ocimene, linalool, asmine lactone, or gamma-decalactone (used to create gardenia headspace).
GiGi: Grand Gardenia Sans the Drama Ayala Sender 2008
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In addition to the generic nutty notes of the pyrazines, one study found a lactone octalactone that is also present in coconuts.
On Food and Cooking, The Science and Lore of the Kitchen Harold McGee 2004
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Angelica Angelica is a large, rangy plant of northern Europe, Angelica archangelica, that has fresh, pine, and citrus notes, but is dominated by a sweet-smelling compound called the angelica lactone.
On Food and Cooking, The Science and Lore of the Kitchen Harold McGee 2004
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In addition to the generic nutty notes of the pyrazines, one study found a lactone octalactone that is also present in coconuts.
On Food and Cooking, The Science and Lore of the Kitchen Harold McGee 2004
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Angelica Angelica is a large, rangy plant of northern Europe, Angelica archangelica, that has fresh, pine, and citrus notes, but is dominated by a sweet-smelling compound called the angelica lactone.
On Food and Cooking, The Science and Lore of the Kitchen Harold McGee 2004
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The natural antibiotic, cephalosporin C, loses on hydrolysis an acetyl group to give the more stable Cc molecule with the carboxyl group combined in a five-membered lactone ring.
Nobel Lecture The X-Ray Analysis Of Complicated Molecules 1964
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