虽然富马酸和富马酸单钠盐都是酸度调节剂，但富马酸主要起缓冲作用，提高体系的稳定性。然而，富马酸单钠盐比富马酸具有更高的化学稳定性，尤其是在和防腐方面。富马酸单钠有三种主要的机制：
Although fumaric acid and monosodium fumarate are both acidity regulators, fumaric acid mainly plays a buffering role in improving the stability of the system. However, monosodium fumarate has higher chemical stability than fumaric acid, especially in terms of antibacterial and anti-corrosion properties. Monosodium fumarate has three main antibacterial mechanisms:
微生物的生长依赖于适当的环境。降低ph值可以抑制许多微生物的生长。
The growth of microorganisms depends on the appropriate environment. Reducing the pH value can inhibit the growth of many microorganisms.
不饱和羰基结构被认为是防腐剂发挥作用的官能团，而富马酸含有这一基团，可能涉及渗透细胞外膜、增加渗透压、抑制生物合成等。
Unsaturated carbonyl structures are considered functional groups for preservatives to exert antibacterial effects, while fumaric acid contains this group, which may involve penetrating the extracellular membrane, increasing osmotic pressure, and inhibiting biosynthesis.
群体感应是细菌间信息交换的通讯系统。细菌通过自身合成和释放信号分子来感知环境变化。当信号分子浓度达到一定阈值时，开启依赖于细胞密度的特定基因的表达，进而调控细菌的生物学行为。富马酸单钠可以阻碍和干扰细菌之间的信息传递，起到抑制微生物增殖的作用。
Quorum sensing is a communication system for information exchange between bacteria. Bacteria perceive environmental changes by synthesizing and releasing signaling molecules themselves. When the concentration of signal molecules reaches a certain threshold, the expression of specific genes dependent on cell density is activated, thereby regulating the biological behavior of bacteria. Monosodium fumarate can hinder and interfere with information transmission between bacteria, playing a role in inhibiting microbial proliferation.
在防腐效果上，富马酸单钠达不到加工要求，但与其他防腐剂如乙酸钠、柠檬酸钠等一起使用时，效果明显提高。达到同样的防腐效果，减少其他防腐剂的使用。这是一种新的防腐剂。在符合性范围内深入研究富马酸单钠的防腐效果，有助于提高食品的整体防腐质量，特别是与其他防腐剂的共同作用和复合作用机理。
In terms of anti-corrosion effect, sodium fumarate cannot meet the processing requirements, but when used together with other preservatives such as sodium acetate and sodium citrate, the effect is significantly improved. Achieve the same anti-corrosion effect and reduce the use of other preservatives. This is a new type of preservative. Deeply studying the anti-corrosion effect of monosodium fumarate within the scope of compliance can help improve the overall anti-corrosion quality of food, especially the synergistic and composite mechanisms with other preservatives.
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