Which foods contain benzoic acid

Benzoic acid exists in fruit vines, prunes, cinnamon, cloves, peaches, plums, strawberries and apples and many other traditional Chinese medicinal materials such as Tribulus terrestris, white peony root, Radix Radix and Euphorbia chinensis. Benzoic acid and its derivatives are also commonly found in In many natural plants, it is a secondary metabolite of plants, which has important physiological functions, such as phytodefensins and hormone regulators. The free benzoic acid content in the mature fruits of some Vaccinium plants (cranberry, lingonberry, lingonberry and American lingonberry) is as high as 300 mg/kg~1 300 mg/kg, and benzoic acid in food is mostly as microbial Products of metabolism are present, such as dairy products.

Benzoic acid is a broad-spectrum antimicrobial preparation, which has a good antibacterial effect on yeast, mold and some bacteria[, benzoic acid at a concentration of 0.1% can reduce spore germination by 33%~55%, and inhibit 54%~97% Mycelia growth; and 1% benzoic acid, its effect can reach 74%~85% and 97%~100% respectively. Some scholars have pointed out that with the decrease of pH value, the antibacterial effect of sodium benzoate solution is greater, the optimum antibacterial pH is 2.5~4.0, and the minimum antibacterial concentration is 0.015%~0.1%. When the pH>5, the undissociated acid content in the solution is very small, and there is basically no anti-corruption effect at this time.

Therefore, benzoic acid and its sodium salt are often used in the preservation and preservation of acidic foods such as high-acid fruits, berries, fruit juices, jams, mustard and soy sauce. Benzoic acid can also be used as antirust agent for steel, improver for alkyd resin and mordant for dyeing, etc. It is also a raw material for synthesizing nylon and polyester fibers.

SNOWHITE CHEMICAL is the largest benzoic acid supplier in China, welcome to inquire anytime!

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