Compare the sodium benzoate & benzoic acid & sorbic acid toxicity
We compare the sodium benzoate and Benzoic acid and sorbic acid toxicity, the advantages of Benzoic acid and sodium benzoate is relatively stable in air, low cost. However, in sealed condition, sorbic acid and potassium sorbate is also very stable, potassium sorbate, better thermal stability, decomposition temperature up to 270 ℃. As food additive added is very small, and will not significantly increase the cost of meat products. Therefore, many countries have begun to use sorbic acid and benzoic acid and potassium sorbate, sodium benzoate alternative.
In addition, the solubility of Benzoic acid in acidic conditions, low, stirring if uneven, there will be a partial acid crystallization, resulting in excessive local product additives (HOU Zhen Jian, 2004). Acid antagonism with calcium chloride, and sodium chloride, isobutyric acid, gluconic acid, cysteine, also have a similar effect of salt (Ge Changrong, 2002). Acid added to food will be produced after the astringent taste, or even destroy the flavor of meat. So do not advocate the use of meat processing as a preservative benzoic acid and sodium benzoate added.
In fact, adding benzoic acid and sodium benzoate preservative are not the only method of meat. Use of natural preservatives, such as the use of Nisin, chitosan, spice extracts, but also to achieve the role of antimicrobial preservation, but also the meat industry in a direction of development. You can also improve the processing conditions, improved food packaging, the product heat treatment or irradiation sterilization, low temperature storage, and so to achieve the purpose of meat preservative. In the final analysis, the most important thing is to strengthen health management, pollution reduction at source.
Other Add a food preservative is intended to improve food quality, extend shelf life, easy processing and preservation of nutrients. As long as the range of varieties in accordance with state regulations and use of Benzoic acid and sodium benzoate be added, are allowed, and it is safe. Indeed, Chinas law on food additives are also some lack, as food scientists face an unprecedented public attention on food safety or the pressure of business interests to pursue, should the spirit of responsibility to demonstrate the scientific attitude, not imagined , random distortion of food preservatives, mislead the public, resulting in loss of public confidence in the modern food industry and even panic. If so, it will make the food industry and food security problems in a passive.