雖然富馬酸和富馬酸單鈉鹽都是酸度調(diào)節(jié)劑，但富馬酸主要起緩沖作用，提高體系的穩(wěn)定性。然而，富馬酸單鈉鹽比富馬酸具有更高的化學(xué)穩(wěn)定性，尤其是在和防腐方面。富馬酸單鈉有三種主要的機(jī)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:
微生物的生長依賴于適當(dāng)?shù)沫h(huán)境。降低ph值可以抑制許多微生物的生長。
The growth of microorganisms depends on the appropriate environment. Reducing the pH value can inhibit the growth of many microorganisms.
不飽和羰基結(jié)構(gòu)被認(rèn)為是防腐劑發(fā)揮作用的官能團(tuán)，而富馬酸含有這一基團(tuán)，可能涉及滲透細(xì)胞外膜、增加滲透壓、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.
群體感應(yīng)是細(xì)菌間信息交換的通訊系統(tǒng)。細(xì)菌通過自身合成和釋放信號分子來感知環(huán)境變化。當(dāng)信號分子濃度達(dá)到一定閾值時，開啟依賴于細(xì)胞密度的特定基因的表達(dá)，進(jìn)而調(diào)控細(xì)菌的生物學(xué)行為。富馬酸單鈉可以阻礙和干擾細(xì)菌之間的信息傳遞，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，富馬酸單鈉達(dá)不到加工要求，但與其他防腐劑如乙酸鈉、檸檬酸鈉等一起使用時，效果明顯提高。達(dá)到同樣的防腐效果，減少其他防腐劑的使用。這是一種新的防腐劑。在符合性范圍內(nèi)深入研究富馬酸單鈉的防腐效果，有助于提高食品的整體防腐質(zhì)量，特別是與其他防腐劑的共同作用和復(fù)合作用機(jī)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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