Classification Term: 169715

Pyranones (ontology term: b6010038d19f955c7e6c12fd48b3bbad)

found 7 associated metabolites at sub_class metabolite taxonomy ontology rank level.

Ancestor: Pyranones

Child Taxonomies: There is no child term of current ontology term.

Kojic acid

5-((3-Aminopropyl)phosphinooxy)-2-(hydroxymethyl)-4H-pyran-4-one

C6H6O4 (142.0266076)


Kojic acid is a synthetic intermediate for production of food additives. It has been found to be a metabolite in Aspergillus (Hugo Vanden Bossche, D.W.R. Mackenzie and G. Cauwenbergh. Aspergillus and Aspergillosis, 1987). Synthetic intermed. for prodn. of food additives Kojic acid is a natural substance produced by Aspergillus oryzae, also used as an anti-oxidant and radio-protective agent[1]. Kojic acid is a natural substance produced by Aspergillus oryzae, also used as an anti-oxidant and radio-protective agent[1].

   

Maltol

3-Hydroxy-2-methyl-4-pyrone; 3-Hydroxy-2-methyl-pyran-4-one; Maltol; Deferiprone Impurity B

C6H6O3 (126.0316926)


Maltol, also known as E636 or fema 2656, belongs to the class of organic compounds known as pyranones and derivatives. Pyranones and derivatives are compounds containing a pyran ring which bears a ketone. Some synthetic derivatives of maltol, developed at the University of Urbino, showed limited in vitro antiproliferative activity towards cancer cells lines, perhaps inducing apoptosis in these cells. Maltol is a sweet, baked, and bread tasting compound. Maltol has been detected, but not quantified, in several different foods, such as milk and milk products, nuts, soy beans, pepper (c. annuum), and coffee and coffee products. Maltols sweetness adds to the odor of freshly baked bread, and is used as a flavor enhancer (INS Number 636) in breads and cakes. Related to this property, maltol has been reported to greatly increase aluminum uptake in the body and to increase the oral bioavailability of gallium and iron. Maltol is a naturally occurring organic compound that is used primarily as a flavor enhancer. It is a white crystalline powder that is soluble in hot water, chloroform, and other polar solvents. Maltol is registered as a flavor component in the EU. Maltol, like related 3-hydroxy-4-pyrones such as kojic acid, binds to hard metal centers such as Fe3+, Ga3+, Al3+, and VO2+. It is known in the European E number food additive series as E636. Because it has the odor of cotton candy and caramel, maltol is used to impart a sweet aroma to fragrances. Maltol is a white crystalline powder with a fragrant caramel-butterscotch odor. pH (5\\\\% aqueous solution) 5.3. (NTP, 1992) 3-hydroxy-2-methyl-4-pyrone is a member of 4-pyranones. It has a role as a metabolite. Maltol is a natural product found in Cercidiphyllum japonicum, Coffea arabica, and other organisms with data available. 3-Hydroxy-2-methyl-4-pyrone is a metabolite found in or produced by Saccharomyces cerevisiae. Found in chicory, roasted malt, breads, milk, heated butter, uncured smoked pork, cocoa, coffee, roasted barley, roasted peanuts, roasted filbert, soybean etc. Flavour enhancer and flavouring agent C1907 - Drug, Natural Product > C28269 - Phytochemical Maltol, a type of aromatic compound, exists in high concentrations in red ginseng. Maltol is a potent antioxidative agent and typically is used to enhance flavor and preserve food[1]. Maltol, a type of aromatic compound, exists in high concentrations in red ginseng. Maltol is a potent antioxidative agent and typically is used to enhance flavor and preserve food[1].

   

Poppy acid

3-Hydroxy-4-oxo-4H-pyran-2,6-dicarboxylic acid

C7H4O7 (199.9957034)


Poppy acid occurs in opium (Papaver somniferum) and other Papaver species. Occurs in opium (Papaver somniferum) and other Papaver subspecies.

   

kojic acid

4H-Pyran-4-one, 5-hydroxy-2-(hydroxymethyl)-

C6H6O4 (142.0266076)


A pyranone that is 4H-pyran substituted by a hydroxy group at position 5, a hydroxymethyl group at position 2 and an oxo group at position 4. It has been isolated from the fungus Aspergillus oryzae. D020011 - Protective Agents > D000975 - Antioxidants CONFIDENCE Reference Standard (Level 1) relative retention time with respect to 9-anthracene Carboxylic Acid is 0.107 Kojic acid is a natural substance produced by Aspergillus oryzae, also used as an anti-oxidant and radio-protective agent[1]. Kojic acid is a natural substance produced by Aspergillus oryzae, also used as an anti-oxidant and radio-protective agent[1].

   
   

2-ethyl-3-hydroxy-4H-pyran-4-one

2-ethyl-3-hydroxy-4H-pyran-4-one

C7H8O3 (140.0473418)


   

5-Hydroxy-4-methoxy-5,6-dihydro-2H-pyran-2-one

5-Hydroxy-4-methoxy-5,6-dihydro-2H-pyran-2-one

C6H8O4 (144.0422568)