25-04-2012, 12:02 PM
Sodium benzoate
[attachment=20772]
Uses
Sodium benzoate is a preservative. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments. It is also used as a preservative in medicines and cosmetics.[1][2] As a food additive, sodium benzoate has the E number E211.
It is also used in fireworks as a fuel in whistle mix, a powder that emits a whistling noise when compressed into a tube and ignited. The fuel is also one of the fastest burning rocket fuels and provides a lot of thrust and smoke. It does have its downsides: there is a high danger of explosion when the fuel is sharply compressed because of the fuel's sensitivity to impact.
Mechanism of food preservation
The mechanism starts with the absorption of benzoic acid into the cell. If the Intracellular pH changes to 5 or lower, the anaerobic fermentation of glucose through phosphofructokinase is decreased by 95%,[8] thereby inhibiting the growth and survival of micro-organisms causing food spoilage.
Safety and health
Main article: Benzene in soft drinks
In combination with ascorbic acid (vitamin C, E300), sodium benzoate and potassium benzoate form benzene, a known carcinogen. However, in most beverages that contain both, the benzene levels are below those considered dangerous for consumption.[9] Heat, light and shelf life can affect the rate at which benzene is formed.
Professor Peter W. Piper of the University of Sheffield claims that sodium benzoate by itself can damage and inactivate vital parts of DNA in a cell's mitochondria. Mitochondria consume oxygen to generate ATP, the body's energy currency. If they are damaged due to disease, the cell malfunctions and may enter apoptosis.
EC Safety Phrases
________________________________________
Under EC legislation, data sheets available in the UK now contain codes for certain "safety phrases", shown as S1, S17 etc. These phrases are also extensively used elsewhere in the world. Safety phrase codes have the following meanings:
Side Effects Of Sodium Benzoate
Sodium benzoate as food additives has a great role in our life, but also has some side effects of sodium benzoate.
Sodium benzoate is used in medicine liquid reagent, prevent the preservative, extend the shelf become bad effect to human body, excessive dosage of liver cancer, or even harmful GB2760-1996. According to the national hygiene standards stipulated in the meat eaters, is to be used in sodium benzoate.
[attachment=20772]
Uses
Sodium benzoate is a preservative. It is bacteriostatic and fungistatic under acidic conditions. It is most widely used in acidic foods such as salad dressings (vinegar), carbonated drinks (carbonic acid), jams and fruit juices (citric acid), pickles (vinegar), and condiments. It is also used as a preservative in medicines and cosmetics.[1][2] As a food additive, sodium benzoate has the E number E211.
It is also used in fireworks as a fuel in whistle mix, a powder that emits a whistling noise when compressed into a tube and ignited. The fuel is also one of the fastest burning rocket fuels and provides a lot of thrust and smoke. It does have its downsides: there is a high danger of explosion when the fuel is sharply compressed because of the fuel's sensitivity to impact.
Mechanism of food preservation
The mechanism starts with the absorption of benzoic acid into the cell. If the Intracellular pH changes to 5 or lower, the anaerobic fermentation of glucose through phosphofructokinase is decreased by 95%,[8] thereby inhibiting the growth and survival of micro-organisms causing food spoilage.
Safety and health
Main article: Benzene in soft drinks
In combination with ascorbic acid (vitamin C, E300), sodium benzoate and potassium benzoate form benzene, a known carcinogen. However, in most beverages that contain both, the benzene levels are below those considered dangerous for consumption.[9] Heat, light and shelf life can affect the rate at which benzene is formed.
Professor Peter W. Piper of the University of Sheffield claims that sodium benzoate by itself can damage and inactivate vital parts of DNA in a cell's mitochondria. Mitochondria consume oxygen to generate ATP, the body's energy currency. If they are damaged due to disease, the cell malfunctions and may enter apoptosis.
EC Safety Phrases
________________________________________
Under EC legislation, data sheets available in the UK now contain codes for certain "safety phrases", shown as S1, S17 etc. These phrases are also extensively used elsewhere in the world. Safety phrase codes have the following meanings:
Side Effects Of Sodium Benzoate
Sodium benzoate as food additives has a great role in our life, but also has some side effects of sodium benzoate.
Sodium benzoate is used in medicine liquid reagent, prevent the preservative, extend the shelf become bad effect to human body, excessive dosage of liver cancer, or even harmful GB2760-1996. According to the national hygiene standards stipulated in the meat eaters, is to be used in sodium benzoate.