merits of sorbic acid

It is a kind of organic compound, widely used as preservatives in food, medicine, cosmetics and agriculture. It's getting popular in recently years as it has the following advantages.
First, sorbic acid is mouldproof and and quite safe as preservatives to food and cosmetic products. The risk of its side effects is about half times lower than that of table salt. The proper amount of issorbic acid and potassium for human is no more than 25 milligrams per day.
Second, it keeps food in original state. It is a kind of unsaturated fatty acid which produce carbon dioxide and water in the process of metabolism. Thus, sorbic acid can be regarded as a part of food it would not destroy the color, fragrance, flavor and nutrition of food.
Last, it can be added into food directly or by means of by spraying or soaking. As it's flexible to use, sorbic acid is widely recommended as good food anti-corrosion agent in the world.