Tetrahydropyrimidine, also known as Ectoine, is a naturally occurring amino acid derivative known as the "bacterioprotector" for its powerful protective effect on microorganisms in extreme environments. This compound was first isolated from hyperhalophiles and is able to protect microorganisms from damage under extreme conditions such as high salt, high temperature, and high ultraviolet radiation. The following explains in detail how tetrahydropyrimidine has earned this reputation.

　　1. Osmotic pressure balance

　　One of the main challenges for microorganisms in extreme environments is changes in osmotic pressure. Tetrahydropyrimidine can help microorganisms maintain the balance of osmotic pressure inside and outside the cell, thus maintaining the stability and integrity of the cell membrane. This osmotic pressure balancing effect enables the bactericide to maintain stable cell morphology and function even under high temperature, freezing, drying and other adverse conditions, thus ensuring the effectiveness of the bactericide.

　　Second, enzyme protection

　　Enzymes are the key to the bioactivity of bactericides, but under extreme conditions, the molecular structure of enzymes is easily damaged and the activity is lost. Tetrahydropyrimidine can stabilize the molecular structure of the enzyme and ensure that the enzyme does not lose activity even under extreme conditions such as freeze-thaw and high temperature. This enzymatic protection is essential for bactericides as it ensures their activity and efficacy in complex environments.

　　3. Ability to resist adversity

　　Tetrahydropyrimidine not only protects halophiles in high salt environments, but also provides protection for microorganisms in other extreme conditions, such as high UV radiation, glaciers, deserts, etc. This strong stress resistance makes tetrahydropyrimidine an ideal addition to significantly enhance the survival and activity of bactericides under a variety of stress conditions.

　　Fourth, molecular level protection

　　Tetrahydropyrimine is able to interact with molecules within the cell, protecting them from adverse external factors, ensuring the stability and normal function of these molecules. In addition, tetrahydropyrimidine also improves enzyme activity, which is particularly important for enzymes used as catalysts in industrial production for various biochemical reactions.

　　5. Safety and applicability

　　Tetrahydropyrimine is a 100% natural compound with good safety and can be widely used in different fields, including agriculture, food industry, cosmetics and other industries. Its unique physical and chemical properties, such as high thermal stability, good solubility, etc., make it an ideal additive.

　　6. Application fields

　　In the field of agriculture: tetrahydropyrimidine can be applied to crops to improve drought resistance by reducing water loss and ensure normal growth of crops under drought conditions.

　　Industrial production: In industrial production, tetrahydropyrimidine can improve the activity of enzymes and ensure the smooth progress of biochemical reactions.

　　Skin care: Tetrahydropyrimidine is also used in skin care products to increase hydration on the skin surface and stabilize the lipid layer, improving the skin's ability to moisturize.

　　In short, because of its strong protective effect in extreme environments, tetrahydropyrimidine can effectively improve the stability and activity of bactericide, so it is known as the "God of bactericide protection". Tetrahydropyrimidine is an extremely valuable compound, both for the microorganisms themselves and for bactericide applications.