Salix alba bark extract is a natural active ingredient extracted from the bark of Salix alba, and its main active ingredient is Salicin, which has been widely used in medicine, cosmetics and health products.The extracts are usually standardized with salicylin content, and the common specifications are 15%, 25%, 30%, 50%, 80%, 90%, 98%, etc.The appearance is brown fine powder to grayish white crystalline powder, easily soluble in water, slightly soluble in methanol, ethanol.
一： chemical composition and pharmacological effects
Main ingredients:
Salicin: The content is usually 15% to 98%, and it is the main active ingredient of white willow bark extract.
Other ingredients: including phenolic glycosides (such as salicin, populin) and flavonoid glycosides (such as isorhamnotin, quercetin).
Pharmacological action:
Antipyretic and analgesic: salicylate can be converted into salicylic acid in the body, which has antipyretic, analgesic and anti-inflammatory effects, similar to aspirin, but less irritating to the gastrointestinal tract.
Antibacterial and anti-inflammatory: the salicylin and flavonoid compounds in the extract have antibacterial and anti-inflammatory effects and can inhibit a variety of pathogenic microorganisms.
Anti-aging: Salicin can regulate the expression of genes related to skin aging, promote collagen production, increase skin elasticity, and reduce wrinkles.
Antioxidant: Flavonoids have antioxidant effects, which can remove free radicals and delay skin aging.
二： Application field
Medical field:
Antipyretic analgesia: used to treat fever, headache, joint pain and rheumatoid arthritis.
Anti-inflammatory and antibacterial: used to relieve skin inflammation, eczema, dermatitis and so on.
Cosmetics field:
Anti-acne oil control: Salicylin has a keratolytic effect, can dreg pores, reduce the formation of acne and blackheads.
Anti-aging: Promote collagen production, improve skin sagging and wrinkles.
Soothing repair: relieve skin irritation such as swelling and itching, suitable for sensitive skin.
Health care products:
Enhance immunity: Flavonoids in the extract have antioxidant effects and can enhance the body's immunity.
Joint health care: Used to relieve joint pain and inflammation, suitable for middle-aged and elderly people and sports people.
三：Extraction methods and quality control
Extraction method:
Usually, water extraction, alcohol extraction or ultrasonic-assisted extraction method is used to obtain the extract after the extract is concentrated and dried.
Modern processes may incorporate techniques such as enzymatic hydrolysis and supercritical extraction to improve the extraction rate and purity of the active ingredient.
Quality control:
The content of salicylate was detected by high performance liquid chromatography (HPLC) to ensure that the product met the standard.
Detection indicators include total ash, acid insoluble ash, water extract, etc., to ensure stable product quality
四：Research progress and future prospects
Clinical studies: A number of studies have shown that white willow bark extract has a significant relief effect on arthritis, low back pain, etc., and high safety.
New application development: In the future, its application in functional food, natural preservatives and other fields can be explored to meet consumers' demand for natural and safe products.
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Post time: Apr-07-2025