Konjac Gum Powder

A: According to EU Regulation (EU) No 231/2012 for E425(i) Konjac Gum, specifications include: carbohydrate ≥75%, loss on drying ≤12%, protein ≤3%, starch ≤3%, total ash ≤5%, arsenic ≤3 mg/kg, lead ≤2 mg/kg, and viscosity (1% solution) ≥3 kg·m⁻¹·s⁻¹. JECFA (57th, 2001) specifications are similar but allow loss on drying ≤15% and protein ≤8%. Our product complies with both sets of standards.

A: EFSA Panel on Dietetic Products, Nutrition and Allergies (NDA) has favorably assessed glucomannan health claims for:

1. Reduction of body weight as part of an energy‑restricted diet (daily dose of at least 3 g, in three doses of 1 g each, taken with 1‑2 glasses of water before meals).
2. Maintenance of normal blood cholesterol concentrations (daily dose of at least 3 g).
3. Reduction of post‑prandial glycaemic responses (daily dose of at least 3 g per meal).
4. Maintenance of normal bowel function (daily dose of at least 3 g).

A: Konjac flour is the unpurified raw product from the konjac tuber (crushed and dried), containing approximately 60‑75% glucomannan. Konjac gum is the purified water‑soluble hydrocolloid obtained by aqueous extraction of konjac flour, with higher glucomannan content (≥95%) and enhanced functional properties. For dietary supplements and functional food applications requiring high purity and consistent viscosity, konjac gum is the preferred choice.

A: Our standard MOQ is 1 kg per product. Yes, free samples (50‑100 g) are available upon request; shipping charges may apply for sample delivery.

A: EFSA requires a minimum of 3 g of glucomannan per day (three 1 g doses, taken with 1‑2 glasses of water before meals). For effective weight management, we recommend formulating a daily serving of 3‑5 g, taken in divided doses 30‑60 minutes before main meals. Ensure adequate water intake (at least 250 ml per gram) to prevent esophageal obstruction risk.

A: Konjac Gum does not dissolve completely in water; it disperses to form a viscous, cloudy gel‑like colloidal dispersion. It is not suitable for clear beverage applications. It is ideal for opaque beverages (meal replacement shakes, smoothies), gel products (jellies, gummies), and solid dosage forms (capsules, tablets).

A: We offer standard high‑viscosity grade (≥3,000 mPa·s at 1% solution), medium‑viscosity grade (2,000‑3,000 mPa·s), and low‑viscosity grade (1,000‑2,000 mPa·s). Custom viscosity specifications are available upon request. Please note that our standard product viscosity meets or exceeds EU E425(i) specifications.

A: Konjac gum is dispersible in both cold and hot water, forming a highly viscous solution with a pH between 4.0 and 7.0. However, dissolution rate and hydration are enhanced by heat and mechanical agitation. Full hydration may take 30‑60 minutes at room temperature.

A: Store in tightly sealed original containers in a cool, dry place away from direct sunlight and moisture. Under proper storage conditions, shelf life is 24 months. Konjac gum is hygroscopic; exposure to humidity may cause caking and viscosity reduction.

A: Yes. Konjac gum is 100% derived from the konjac tuber (Amorphophallus konjac) and contains no gluten, soy, dairy, or other common allergens. It is naturally plant‑based and suitable for vegan, vegetarian, and clean‑label formulations. Allergen statements are available upon request.

A: Konjac gum has significantly higher molecular weight (200,000‑2,000,000 Da) and viscosity than most other hydrocolloids. Unlike guar gum and locust bean gum, konjac gum forms a thermally stable gel when exposed to mild alkali (e.g., K₂CO₃), a unique property widely used in jelly and noodle production. It also has superior water‑holding capacity (80‑100× expansion) compared to other soluble fibers.

A: Yes. We offer OEM/ODM services including custom particle size (80‑400 mesh), viscosity customization (low / medium / high), micronization, custom packaging, and finished dosage form development (capsules, tablets, powder blends, gummies, stick packs). Please contact our sales team for detailed discussion.