Isohumulone

Isohumulone

chembox new
ImageFile=Structure of Isohumulones.pngImageSize=200px
IUPACName=3,4-Dihydroxy-5-(3-methylbut- 2-enyl)-2-(3-methyl-1-oxobutyl)-4-(4- methyl-1-oxopent-3-enyl)-1- cyclopent-2-enone
OtherNames=
Section1=Chembox Identifiers
CASNo=25522-96-7
PubChem=93090
SMILES=CC(C)CC(=O)C1=C(C(C(C1=O)CC=C(C)C)(C(=O)CC=C(C)C)O)O
Section2=Chembox Properties
Formula=C21H30O5
MolarMass=362.46 g/mol
Appearance=
Density=
MeltingPt=
BoilingPt=
Solubility=
Section3=Chembox Hazards
MainHazards=
FlashPt=
Autoignition=

Isohumulones are compounds that contribute to the bitter taste of beer. The bitterness of beer is measured according to the International Bitterness Units scale, with one IBU corresponding to 1 part per million of isohumulone. When beer is exposed to light, these compounds can be decomposed in a reaction catalyzed by riboflavin, creating 3-methylbut-2-ene-1-thiol, a thiol which causes beer to develop a "skunky" flavor.Fact|date=July 2008

References


Wikimedia Foundation. 2010.

Игры ⚽ Поможем написать реферат

Look at other dictionaries:

  • Isohumulone — Structure de base de l Isohumulone Général Nom IUPAC 3,4 dihydroxy 2 (3 methylbutanoyl) …   Wikipédia en Français

  • isohumulone — noun Any of various compounds that contribute to the bitter taste of beer …   Wiktionary

  • 25522-96-7 — Isohumulone Isohumulone Structure de base de l Isohumulone Général Nom IUPAC 3,4 dihyd …   Wikipédia en Français

  • 29788-65-6 — Isohumulone Isohumulone Structure de base de l Isohumulone Général Nom IUPAC 3,4 dihyd …   Wikipédia en Français

  • 26472-41-3 — Humulone Humulone Général No CAS …   Wikipédia en Français

  • Humulone — Général Nom IUPAC (6S) 4,6 bi(3 méthylbut 2 en 1 yl) 3,5,6 trihydroxy 2 (3 méthylbutanoyl)cyclohexa 2,4 dién 1 one N …   Wikipédia en Français

  • Hops — This article is about the beer ingredient. For the botanical article on the hop plant, see Humulus. For other meanings, see Hop (disambiguation). Hopps redirects here. For the surname, see Hopps (surname). Hop cone in the Hallertau, Germany, hop… …   Wikipedia

  • International Bitterness Units scale — The International Bitterness Units scale, or simply IBU scale, provides a measure of the bitterness of beer, which is provided by the hops used during brewing. An IBU is measured through the use of a spectrophotometer and solvent extraction. It… …   Wikipedia

  • Beer bottle — A beer bottle is a glass (or, less commonly, plastic) container filled with beer. Bottled beer has been in use since as early as the 16th century. Beer bottles come in various sizes, shapes and colours. Dark glass prevents light from spoiling the …   Wikipedia

  • Echter Hopfen — (Humulus lupulus), Illustration Systematik Rosiden Eurosiden I …   Deutsch Wikipedia

Share the article and excerpts

Direct link
… Do a right-click on the link above
and select “Copy Link”