L-proline

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The physiological functions and applications of L-proline
1. Functions within living organisms
Collagen synthesis: As the main component of collagen (accounting for approximately 14%), it is crucial for the elasticity and strength of connective tissues such as the skin, joints, and blood vessels.
Neurotransmitter precursors: In the brain, they can be converted into glutamic acid (excitatory neurotransmitter) and gamma-aminobutyric acid (GABA, inhibitory neurotransmitter), participating in neural signal transmission.
Intestinal health: Promoting the proliferation and repair of intestinal cells, maintaining the integrity of intestinal mucosa, is particularly important for infants and postoperative patients.
Energy metabolism: It can be utilized by muscle tissue as an energy source during stress or exercise.
2. Medicine and health products
Nutritional supplements: They are used to improve skin aging, joint pain (such as osteoarthritis), or as nutritional support for patients with liver diseases and burns.
Drug synthesis: As a drug intermediate, it is used in the production of antibiotics (such as cephalosporin drugs), immunosuppressants (such as mycophenolate mofetil esters), etc.
Therapeutic uses: To assist in the treatment of depression (by regulating GABA levels), and to improve symptoms of post-traumatic stress disorder (PTSD), etc. (Some studies are still ongoing).
3. Food and Feed industry
Food additives: As flavoring agents (to enhance the umami flavor of food) and nutritional fortifiers, they are used in bread, dairy products, meat products, etc.
Feed additives: Promote the growth of livestock and poultry, improve feed utilization rate, and are especially suitable for the intestinal development of young animals.
4. Cosmetics and skin care products
Moisturizing and anti-wrinkle: Participates in collagen synthesis, improves skin elasticity, reduces wrinkles, and is often added to anti-aging skin care products.
Scalp health: Promoting the metabolism of hair follicle cells may prevent hair loss or improve hair quality.

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