Maltol
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- Category :
Organic chemicals and Derivatives/Aroma compounds
- CAS NO : 118-71-8
- EC NO : 204-271-8
- Molecular Formula : C7H8O3
- Main Specifications : 99% min
- Synonyms : Maltol;2-Methyl-3-hydroxy-.gamma.-pyranone;3-Hydroxy-2-Methyl-4H-Pyran-4-One;
Package: 25kg 50kg drum or bag
Uses : As a food additive and essence spice
Molecular Structure:
Product description:
What is the chemical of Maltol?
Appearance: White to slightly yellow needle shaped crystals or crystalline powders.
Odor: It has a special aroma similar to burnt cream sugar, and the dilute solution has a strawberry fragrance. ;
Assay: 99% min by HPLC ;
IR Identity: conform to standard ;
HNMR： conform to standard ;
carbon spectrum: conform to standard ;
Water by K. F.:0.5% max or as per the customer’s request ;
Loss on drying:0.5% max. or as per the customer’s request ;
Melting point: 160–164 °C;
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main purpose
Food industry: As a food additive and essence spice, it is widely used in cakes, chocolate, candy, bread, cakes, cold drinks, soft drinks, etc., and plays the role of increasing fragrance, fixing fragrance, and sweetening.
Daily chemicals and cosmetics: used to make perfume, skin care products and cosmetics with pine needles, roses, vanilla, fruits and other scents.
Tobacco industry: used for tobacco essence to improve tobacco flavor.
Other applications: Can be used for coating photosensitive film to prevent spots and stripes.
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synthetic route
There are three main methods for synthesizing maltol:
Natural extraction method:
Extract from roasted malt, pine needles, chicory, wood vinegar, or larch bark using solvent extraction, vacuum distillation, or crystallization methods
Semi synthetic method (using quercetin as raw material):
Starch is fermented by Aspergillus flavus to produce kojic acid;
Kojic acid undergoes oxidation and decarboxylation to produce Jiaomeikang acid;
Jiaomeikang acid and formaldehyde are condensed under alkaline conditions, and then reduced (such as zinc powder/hydrochloric acid) to obtain maltol
Total synthesis method (using furfural or furfuryl alcohol as raw materials):
Furfuryl alcohol is chlorinated in methanol aqueous solution to produce an intermediate, which is then hydrolyzed, condensed, and reduced to obtain maltol
twelve
.
At present, synthetic methods are mainly used in industrial production due to their low cost and high yield. Natural extraction is only used for high-end or organic products.
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