**Introduction to Tremella Polysaccharide** Tremella polysaccharide is a bioactive compound extracted from *Tremella fuciformis*, a prized edible and medicinal mushroom known as the "silver ear" or "snow fungus." Renowned for its high moisture-retention properties, this natural polysaccharide is widely used in skincare for its exceptional hydrating and anti-aging benefits. It helps enhance skin elasticity, reduce wrinkles, and promote a radiant complexion. Beyond cosmetics, tremella polysaccharide supports immune function, exhibits antioxidant effects, and may aid in blood sugar regulation. Its biocompatibility and gentle nature make it suitable for sensitive skin and health supplements. A versatile ingredient, it bridges traditional wellness and modern science, offering holistic beauty and health benefits.
Preparation Process: To prepare tremella polysaccharide, follow these steps: 1. **Extraction**: Wash and dry fresh tremella mushrooms, then grind them into powder. Mix the powder with hot water (80–90°C) at a 1:20–1:30 (w/v) ratio for 2–3 hours. 2. **Filtration**: Centrifuge or filter the mixture to remove insoluble residues. 3. **Precipitation**: Add 3–4 volumes of 95% ethanol to the supernatant, stir, and let stand overnight to precipitate polysaccharides. 4. **Purification**: Collect the precipitate, dissolve in water, and deproteinize using Sevag reagent (chloroform:butanol, 4:1). Dialyze against distilled water and lyophilize to obtain purified tremella polysaccharide. (100 words)
Usage Scenarios: Tremella polysaccharide, extracted from *Tremella fuciformis* (snow fungus), is widely used in cosmetics, pharmaceuticals, and functional foods due to its bioactive properties. In skincare, it acts as a potent humectant, enhancing hydration and improving skin elasticity by retaining moisture. Its antioxidant and anti-inflammatory effects help protect against UV damage and reduce skin aging. In medicine, it boosts immunity, regulates blood sugar, and supports liver health. As a dietary supplement, it promotes gut microbiota balance and aids digestion. Additionally, its film-forming ability makes it useful in wound healing and drug delivery systems. Tremella polysaccharide is also incorporated into beverages and health products for its nutritional benefits.