Supply Calcium Propionate Raw Materials powder

CAS:4075-81-4

MF:C3H8CaO2

MW:116.17

EINECS:223-795-8

Specification: 99% min Calcium Propionate

Sample:Calcium Propionate powder

Packaging:1kg/bag, 25kg/drum

Brand: Raw Materials

Appearance:white

Storage: Cool Dry Place

Shelf Life: 2 Years

Test Method: HPLC

Calcium Propionate Usage and Synthesis.

Used as a preservative for bread, pastry and cheese and as an anti-mould agent for feed. As food preservatives, propionate salts and calcium propionate are mainly used in bread because sodium propionate raises the ph value of bread and delays the fermentation of raw pasta; sodium propionate is mostly used in confectionery because synthetic bulking agents are used for the puffing of confectionery, and there is no problem with the development of yeast caused by a rise in pH value.

When used as a feed preservative, sodium propionate is better than calcium propionate. However, calcium propionate is more stable than sodium propionate. Propionate in food in addition to bread, pastry, cheese, etc., can also be used for soy sauce mould, inhibit re-fermentation effect.

In medicine, propionate can be made into powder, solution and ointment to treat diseases caused by parasitic moulds on skin. The ointment (liquid) contains 12.3 per cent sodium propionate, and the bulk contains 15 per cent calcium propionate.

Uses of Calcium Propionate.

Calcium acid liquid wet acid type preservative, its bacteriostatic effect is affected by the environmental PH. In PH5.0 when the minimum inhibitory concentration of 0.01%, PH6.5 when 0.5%. It has strong inhibitory effect on various moulds, aerobic bacillus or gram-negative bacillus in acidic medium. It is effective in preventing the production of aflatoxin, but almost ineffective against yeast. In addition, it is also used as a food preservative.

Calcium propionate is also an acid-type food preservative, and its bacteriostatic effect is affected by the environmental Ph value. The minimum inhibitory concentration is 0.01% at Ph 5.0 and 0.5% at Ph 6.5. It has strong inhibitory effect on all kinds of moulds, Gram-negative bacilli or aerobic bacilli in acidic medium.

It is effective in preventing the production of aflatoxin, while it is almost ineffective against yeast. In the food industry, it is mainly used in vinegar, soy sauce, bread, pastry and soybean products, the maximum use (in propionic acid, the same below) 2.5g/kg; in the raw noodles and wet products, the maximum use of 0.25g/kg; it can also be used as feed mould inhibitor.

Preparation method of Calcium Propionate.

First of all, the raw material calcium carbonate made of water suspension, the water should be refined and purified to remove impurities such as heavy metals and magnesium. CaCO3 water suspension quantitatively into the neutralisation reactor, maintain the kettle temperature of 60 ~ 80 ℃, stirring while adding propionic acid, neutralisation reaction lasted 2 ~ 3 hours, at this time there is a large amount of CO2 gas escapes, can be discharged through the condenser vent pipe.

By adjusting the external heating temperature, adding acid and stirring speed to achieve the best reaction conditions, the end point of the reaction pH value should be controlled at 7 ~ 8, the reaction is reversible, the CO2 gas should be discharged in time to better control the end point of the reaction.

The neutralised aqueous solution is vacuum filtered, and the filtrate is concentrated in the evaporation kettle, and then put into the crystallisation tank and slowly cooled and crystallised under normal temperature and pressure. The mother liquor can be returned to the evaporation kettle set 2-3 times and then discarded. The separated solid is dried into small particles and crushed, measured and packaged to obtain the finished product of calcium propionate.

Product method of Bulk Calcium Propionate Powder.

Produced by propionic acid and calcium hydroxide or calcium carbonate reaction: industry generally use calcium hydroxide as raw material, in the reaction pot will be adjusted to calcium hydroxide suspension, add propionic acid, the reaction temperature is maintained at 70-100 ℃, the reaction of 2-3 hours, the end point of the reaction pH control in 7-8, the reaction material filtration, drying that is the finished product.