Hydrolyzed Sclerotium Gum CAS 39464-87-4

Introduction to Hydrolyzed Sclerotium Gum

Hydrolyzed Sclerotium Gum is a non-ionic polysaccharide fermented from Sclerotium rolfsii, then processed via controlled enzymatic hydrolysis. Its core structure has a β-1,3-glucan backbone with regular β-1,6-glucose side branches. The hydrolysis step cuts molecular weight, turning the native thickening gum into a fast-penetrating humectant with a light, smooth skin feel.

Its triple-helix non-ionic structure delivers exceptional stability in high-electrolyte environments, retaining full water-binding capacity in formulas with high salt or active ingredient loads. The powder hydrates rapidly on water contact, which can cause surface gelling and trapped dry powder known as “fish eyes” if added incorrectly. Pre-dispersion in polyols or slow addition under high shear is recommended for lump-free results.

Hydrolyzed Sclerotium Gum Chemical & Physical Properties

Applications of Hydrolyzed Sclerotium Gum

High-electrolyte serums & ampoules
Delivers deep, long-lasting skin hydration and a silky slip feel in formulas loaded with high-strength actives or salts. Its non-ionic structure prevents polymer collapse or precipitation in high-ionic-strength environments.

Sheet masks & wet wipe fluids
Lowers surface tension of essence fluids to support uniform saturation into non-woven substrates. It prevents dripping during application and slows moisture loss during storage.

Sunscreens & alcohol-based formulations
Maintains film integrity and skin hydration in formulas with high ethanol content or inorganic UV filters. It stays fully compatible and functional without salting out.

Scalp & hair care treatments
Delivers targeted hydration to the scalp stratum corneum without leaving heavy, greasy buildup. It does not weigh down hair roots or disrupt styling performance.

Storage & Safety Precautions for Hydrolyzed Sclerotium Gum

• Store in sealed containers at 5–25 °C in a strictly dry environment. The powder is highly hygroscopic and will fuse into hard clumps if exposed to high humidity. Keep away from direct moisture sources.
• Not classified as hazardous under GHS. Non-toxic and non-irritating. Wear a standard dust mask and safety glasses when handling bulk powder to avoid inhalation of fine particles. Spills become very slippery when wet; sweep dry material first before rinsing.
• Non-DG for standard transport. Ensure container liners are fully sealed to prevent moisture ingress during transit.
• Allow 24 hours for full hydration when testing incoming viscosity. Early readings will underreport true equilibrium viscosity and may cause false QC rejection.

Hydrolyzed Sclerotium Gum FAQ

Q: How do I prevent “fish eyes” when dissolving Hydrolyzed Sclerotium Gum?

A: Pre-dispersion is required. The powder forms an instant gel layer on water contact that traps dry inner powder. Mix 1 part powder with 5 parts glycerin or propanediol first to make a slurry, then add to the water phase. For direct powder addition, use high shear and sprinkle slowly, then mix 20+ minutes.

Q: What is the difference between hydrolyzed and native Sclerotium Gum?

A: Native gum has a molecular weight over 1,000,000 Da and acts primarily as a thickener and suspending agent. Hydrolyzed gum has reduced molecular weight from enzymatic cleavage, with weaker thickening power but faster skin penetration and a lighter, non-sticky feel.

Q: Will it precipitate in formulas with high niacinamide and salt content?

A: No. It is strictly non-ionic, so it does not interact with dissolved salts or charged actives. It retains full hydration and film-forming properties in high-electrolyte systems, and stays stable between pH 4.0 and 8.0.