Purity: ≥98.0% (common industrial grade); ≥75% (protein basis, laboratory grade) Appearance: White to gray to brown powder (no visible impurities) Total Nitrogen: ≥12.0% Loss on Drying (Drying Loss): ≤8.0% (max); ≤9.0% (food grade) Ash: ≤1.0% (max) Water Absorption Rate: ≥150% (min) Sieve Percentage (200 μm): ≤2.0% (max)

Heavy Metals: ≤10 ppm

Application 1: Food Industry — Dough strengthener, protein nutritional supplement, thickener, stabilizer, surface decorator, texture improver, polishing agent and forming aid; widely used in bread, noodles, instant noodles production; used as water-retaining agent in meat products; added as protein additive in infant and child health food (1-2% addition); also used in special breakfast foods and other cereal products.

Application 2: Feed Industry — High-nutrition feed additive for cattle and aquatic products; basic raw material for high-grade aquatic feed.

Application 3: Industrial Field — Adhesive for wood, paper and metal materials (due to adhesion and film-forming properties); coating raw material; catalyst and carrier in chemical reactions; raw material for nanomaterial preparation.

Application 4: Biochemical & Laboratory Research — Used as a protein reagent; suitable for surface plasmon resonance (SPR) experiments; used in protein sample preparation and related research.

Application 5: Biomaterial Field — Raw material for tissue engineering scaffolds and biomaterials (due to biocompatibility and degradability).Production Method: By-product of starch extraction from wheat flour; obtained by fully washing water-soluble proteins and then vacuum drying.

GHS Classification: Not classified as hazardous; no hazard statements or signal word.Toxicity: Non-toxic (natural food product); GRAS (FDA, §184.1322, 2000); LD50 orally in animals: No acute toxicity reported.Handling Precautions: Avoid dust formation and inhalation; avoid skin and eye contact; wear eye shields, gloves and N95 (US) masks during operation; ensure adequate ventilation in dust-generating areas; wash hands thoroughly after handling.