Flaxseed Gum¶

Product Code: FSP-GUM-001
Revision: V11.0

Description¶

Flaxseed gum (also known as flaxseed mucilage) is a heteropolysaccharide complex extracted from the hull fraction by aqueous extraction and recovered by ethanol precipitation or spray drying. It exhibits high water-binding capacity, pseudoplastic rheology, and emulsion-stabilising functionality.

Proximate Composition¶

Parameter	Specification	Method
Total Polysaccharide	75–85%	Phenol-sulfuric
Protein (residual)	3–6%	AOAC 984.13
Uronic acid	8–14%	m-Hydroxydiphenyl
Moisture	≤ 5.0%	AOAC 925.10
Ash	4–7%	AOAC 923.03
Acetyl groups	2–4%	HPLC

Monosaccharide Composition (% of total sugar)¶

Sugar	Percentage	Method
Xylose	30–38%	HPLC-PAD
Galactose	20–28%	HPLC-PAD
Rhamnose	12–18%	HPLC-PAD
Arabinose	8–14%	HPLC-PAD
Glucose	6–10%	HPLC-PAD
Fucose	2–5%	HPLC-PAD

Rheological Properties¶

Condition	Value	Method
Viscosity (1% solution, 25°C)	500–2000 cP	Brookfield, 20 rpm
Viscosity (2% solution, 25°C)	2000–5000 cP	Brookfield, 20 rpm
Viscosity (5% solution, 25°C)	8000–15000 cP	Brookfield, 20 rpm
Flow behavior	Pseudoplastic (n = 0.3–0.5)	Shear ramp 0.1–100 s⁻¹
Yield stress (1% solution)	0.5–2.0 Pa	Controlled stress
G' (1% solution, 1 Hz)	2–8 Pa	Oscillatory
G'' (1% solution, 1 Hz)	0.5–2 Pa	Oscillatory

Functional Properties¶

Property	Value	Method
Water holding capacity	10–15 g/g	Centrifuge
Emulsion activity index	45–60 m²/g	Turbidimetric
Emulsion stability (24 hr)	≥ 85%	Centrifuge
Foaming capacity	30–50%	Whipping method
Surface tension (0.1% solution)	45–55 mN/m	Du Noüy ring

Microbiological¶

Parameter	Limit	Method
Standard Plate Count	≤ 3,000 CFU/g	AOAC 990.12
Yeast & Mold	≤ 50 CFU/g	AOAC 997.02
Coliforms	≤ 10 CFU/g	AOAC 991.14
Salmonella	Negative / 25 g	AOAC 994.04

Packaging¶

15 kg multi-ply bags with PE liner
200 kg fiber drums
500 kg bulk totes

Storage¶

Cool, dry (< 25°C, < 50% RH)
Hygroscopic — keep sealed
Shelf life: 24 months

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