L-arginine Wholesale Price

L-arginine, as a special amino acid, possesses multiple characteristics that are closely related to its chemical structure, physiological functions, and existing forms in nature:

I. Chemical Structure Characteristics

L-arginine is a basic amino acid containing a guanidine group (-NH-C(=NH)-NH₂) in its molecule. This structure gives it a positive charge in the physiological pH environment, enabling it to bind to acidic substances, and also endows it with strong polarity and water solubility. Meanwhile, as one of the basic components of proteins, it belongs to α-amino acids and has an L-configuration — this is the main form of amino acids in nature and the configuration that can be recognized and utilized by the human body (D-arginine cannot be effectively metabolized by the human body).

II. Physiological Function Characteristics

Semi-essentiality: For healthy adults, L-arginine can be synthesized in the body through the ornithine cycle to meet basic needs. However, under special physiological conditions (such as infant growth and development, wound repair, infection, or chronic diseases), the amount synthesized in the body is insufficient and must be obtained from food, thus exhibiting the characteristic of "conditional essentiality".

Multifunctional metabolic effects: Its guanidine structure is the core involved in various key physiological reactions. For example, under the catalysis of nitric oxide synthase (NOS), it can be converted into nitric oxide (NO), which, as an important signaling molecule, can regulate vasodilation and improve blood circulation. Additionally, it is a key intermediate product in the urea cycle, promoting the metabolism and excretion of ammonia to maintain nitrogen balance in the body. Furthermore, it can serve as a precursor for the synthesis of substances such as creatine and polyamines (involved in cell proliferation), participating in energy metabolism and cell repair processes.

III. Physical and Stability Characteristics

L-arginine is a white crystalline powder with no odor and a slightly bitter taste. It is easily soluble in water but hardly soluble in organic solvents (such as ethanol and ether). This characteristic makes it easy to dissolve and add in food processing and nutritional supplement preparation. However, it is relatively sensitive to heat, light, and pH, and tends to decompose under high temperature or strong acid-base environments. Therefore, during processing and storage, it is necessary to avoid light, keep it sealed, and control temperature and acidity to maintain its activity.

IV. Source and Safety Characteristics

L-arginine widely exists in natural foods, especially high-protein ingredients (such as meat, fish, dairy products, legumes, etc.). As a naturally occurring nutrient, it has high safety. When ingested through normal diet, the human body can decompose it into amino acids through digestive enzymes for absorption and utilization, with no obvious toxicity. Even when used as a supplement, under the recommended dosage (usually no more than 10-20 grams per day for adults), adverse reactions are rare, and only a few people may experience gastrointestinal discomfort (such as nausea, diarrhea) due to excessive intake.

These characteristics collectively determine the important value of L-arginine in nutritional support, physiological regulation, and medical health fields, making it a research hotspot in the food, health product, and pharmaceutical industries.