Tuesday, June 24, 2014

Acetic Acid Fermentation

Acetic acid fermentation is one kind of oxidation fermentation. It is a process that ethanol oxidation into acetic acid under the effect of acetic acid bacteria. Besides there are many kinds of microorganisms can also form acetic acid with various compounds through anaerobic activity. But it generally not called acetic acid fermentation.
Acetic acid bacteria is aerobic bacteria. Fermentation is making under aeration conditions and always with the temperature of the range from 25 to 30 centigrade. Acetic acid bacteria need amino acids and vitamins. So there must be adding yeast extract, koji and other organic matter with nitrogen containing to the fermentation liquid.
There are two types of brewing vinegar, they are solid fermentation and liquid fermentation. For example, for saccharification and alcohol fermentation with the original material of starch, finally making acetic acid fermentation. Solid state fermentation is traditional crafts. There are many kinds of microorganisms participate in and product flavor is good. Liquid fermentation is general for industrialized production. It uses pure culture of the fungus and with large output,lower cost, but the flavor is bad.
Vinegar as a life essential items has the important position in food flavoring. Acetic acid can inhibit the growth of spoilage bacteria. You can be kept vegetables fresh and not corruption with  vinegar pickled. Acetic acid can also be used as a medical disinfectant. Glacial acetic acid is an important raw material for chemical and pharmaceutical, widely used in printing and dyeing industry. Acetic acid are also widely used in textile industry, fiber industry, pesticide industry, dyestuff industry, plastic industry and others.

Tuesday, June 17, 2014

Using Acetic Acid Carefully

Acetic acid has corrosive. Its irritation has effect on steam eye and nose. So we should be more careful in using the acetic acid. If the skin contact with acetic acid. You should wash with water first, then use the soap to wash thoroughly. Certainly you should be careful when the acetic acid get into your eyes. Wash your eyes with water at first and then clean with dry cloth. If it is serious, you must go to the hospital immediately. In order to avoid these accident, you can wear protective glasses which with chemical safety in the working and wear rubber gloves. After working, you should take a shower and change your clothes. Don’t take the work clothes into the living area. When concentration in the air is exceed the standard, you should wear masks.
We have 99.9%min glacial acetic acid,99.8%min glacial acetic acid,90%min glacial acetic acid,80%min glacial acetic acid or according to the special requirement by customer. Annual capacity of our glacial acetic acid is 350,000. The raw material is methanol.If you swallow the acetic acid, you must be given an emetic and go to hospital. Likewise it is also dangerous to inhaled acetic acid vapor. Far away from the pollution areas to rest and keep warm at the same time.