Dimethyl dicarbonate

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Dimethyl dicarbonate Specification

Solubility
Soluble in ethanol, partially soluble in water

Application
Preservation for wines, juices, soft drinks

Ph Level
Neutral to slightly acidic

Source
Synthetic

Product Type
Chemical preservative / Additive

Form
Liquid or crystalline solid

Color
Colorless to pale yellow

Weight
Varies; commonly supplied in milliliter units such as 250 ml, 500 ml, or per kg

Shelf Life
1 year under recommended storage

Pack Size
250 ml, 500 ml, 1 L, 5 L, 25 kg

Grade Standard
Industrial Grade / Food Grade

Flavor
Odorless, tasteless

Physical State
Liquid or crystalline solid

Pack Type
Sealed HDPE bottle or drum

Purity
>99%

About Dimethyl dicarbonate

Dimethyl dicarbonate
CAS number [4525-33-1]

Dimethyl dicarbonate or DMDC is a colourless liquid with a sharp odour. Its primary use is as a beverage preservative or sterilant (INS No. 242), and acts by inhibiting the enzymes acetate kinase and L-glutamic acid decarboxylase. It has also been proposed that methoxycarbonylation of the histidine part of the enzymes alcohol dehydrogenase and glyceraldehyde 3-phosphate dehydrogenase by DMDC inhibits these essential enzymes also

DMDC is sometimes used as a preservative in wine as a replacement to sulfur dioxide, inactivating wine spoilage yeasts such as Brettanomyces. In the U.S. the FDA approved its use in wines in 1988, with the maximum permitted level being set at 200 mg/L, and only if there was less than 500 yeast cells/mL at time of dosage. Usage has also been approved in Germany (since 1978) and New Zealand. The application of DMDC is particularly useful when wine needs to be sterilised but cannot be sterile filtered, pasteurized, or sulfured.

DMDC has also been used to sterilise coffee, tea, cider, fruit wine and mead.

Exceptional Preservation Quality

Dimethyl dicarbonate is recognized for its efficacy in beverage preservation. Suitable for wines, juices, and soft drinks, it inhibits the growth of unwanted microorganisms while remaining neutral in taste and smell, maintaining the products original qualities.

Flexible Packaging and Purity Assurance

Offered in a range of pack sizes from 250 ml bottles to 25 kg drums, DMDC is adaptable for both small-scale and large-volume needs. With a purity greater than 99% and packaging in sealed HDPE containers, product integrity is safeguarded throughout transport and storage.

Stable and Versatile for Multiple Uses

DMDC is chemically stable when stored under recommended conditions and retains its preservation abilities for up to a year. Its synthetic origin and compatibility with ethanol ensure it integrates smoothly into various beverage production processes.

FAQs of Dimethyl dicarbonate:

Q: How should dimethyl dicarbonate be applied for beverage preservation?

A: Dimethyl dicarbonate is added directly to the liquid during the bottling or packaging process. Dosage and exact application will depend on the specific product and desired preservation effect, following local regulatory guidelines for food safety.

Q: What are the benefits of using dimethyl dicarbonate in wine and juice production?

A: Using DMDC provides effective microbial control, prolongs shelf life, and maintains the original taste and aroma of products as it is odorless and tasteless. This makes it especially valuable for high-quality beverage preservation.

Q: When is dimethyl dicarbonate most effective during the manufacturing process?

A: DMDC is most effective when introduced just before final packaging of beverages. This timing ensures that microbial activity is minimized and the preservative effect is maximized without altering sensory properties.

Q: Where is dimethyl dicarbonate produced and supplied from?

A: The product is manufactured and exported by suppliers in China and is available globally in various packaging sizes, catering to both industrial and food-grade requirements.

Q: What is the recommended storage condition for dimethyl dicarbonate to maximize shelf life?

A: DMDC should be kept in its original sealed HDPE bottles or drums, stored in a cool, dry place, and away from direct sunlight to maintain its stability and effectiveness over a one-year shelf life.

Q: Is dimethyl dicarbonate soluble in alcoholic or aqueous solutions?

A: It is soluble in ethanol, which facilitates its use in alcoholic beverages, and is partially soluble in water, making it suitable for non-alcoholic drinks as well.

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