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ProFood International Fumaric acid is unsaturated dicarboxylic acid that melts at 287.CAS Number: 110-17-8 Chemical Formula: C4H4O4 Molecular Weight 116.07 Fumaric acid is an organic (carbon-containing) food acid. It is one of the most common acids found in nature where it acts as a key ingredient in organic acid biosynthesis (the Krebs cycle). It is found in small amounts in a variety of plants and is essential to the respiration of animal and vegetable tissue. This chemical is used as a substitute for tartaric acid in beverages and baking powder.It is used as a mordant in dyeing and in the manufacture of synthetic resins and polyhydric alcohols.

Ɛ-Polylysin is a natural substance from microbial metablism. Polylysine has a function to prevent a microbe from proliferating by ionic adsorption in the microbe. ε-polylysine has a wide antibacterial spectrumand has an obvious lethal effect on Gram-positive and Gram-negative bacteria, yeast, mold, viruses etc. It has a good antibacterial effect on the Gram-negative bacteria E. coli and salmonellae, which are difficult to control with other natural preservatives .It also has an inhibitory effect on heat-resistant Bacilli and some viruses, but higher concentrations are required to inhibit yeasts and moldsε-Polylysine has already been used generally as a food additive in Japan, Korea and other part of world. In US, FDA has recognized the polylysine as a GRAS material. ε-Polylysine is found in nature, a material produced by microbial fermentation like miso (soybean paste) and soy (soy sauce), yogurt or the like, and combined to a straight chain of lysine which is one of an essential amino acid