Chitosan Oligosaccharides

Source of Strain

UC Davis

Production Process

Chitin → Chitosan → Specific Enzymatic Hydrolysis → Chitosan Oligosaccharides

Physical and Chemical Properties

• Specific Gravity: 1.03-1.05
• pH: 6.0-7.0
• Degree of Polymerization (DP): 3-7 ≥ 95%
• Molecular Weight: 1000-1500
• Content: Liquid formulation 10%, Powder formulation 95%

Production Process and Advantages

1. High Purity and Yield: Exclusively produced through enzymatic methods, achieving purity levels of 98%-100%, compared to conventional chemical methods that result in lower yields (below 75%) due to oxidation damage.
2. Superior Quality and Appearance: The use of “specific chitosanase” in enzymatic hydrolysis ensures an efficient and mild reaction, producing a high-quality product that appears pale yellow to nearly white.
3. Stable Molecular Weight and High Activity: The molecular weight is consistent, and the oligosaccharide fragments are evenly distributed, addressing industry challenges related to instability and batch variability in chemical-based production.
4. Optimized Degree of Polymerization: More than 95% of the product consists of oligosaccharides with a degree of polymerization between 3-7, ensuring enhanced bioactivity and consistency across batches.

Functional Effects

1. Induces Disease Resistance: Stimulates the production of plant defense compounds, preventing infections caused by viruses, fungi, bacteria, and other pathogens.
2. Enhances Stress Resistance: Strengthens physiological functions under adverse conditions, reducing stress-related damage and improving crop resilience.
3. Detoxifies Crops: Helps neutralize the toxicity of fertilizers and pesticides, restoring plant health and vigor.
4. Promotes Growth: Supports carbon-nitrogen metabolism, chlorophyll synthesis, and root development, improving overall crop growth.
5. Improves Crop Quality: Increases Vitamin C and soluble sugar content while reducing organic acid levels, leading to superior fruit and vegetable quality.

Application Directions

Chitosan Oligosaccharides can be used in:

• Biopesticides for virus control
• Plant growth regulators
• Fertilizer efficiency enhancers
• Nematode control

Dosage and Usage

• 10% Liquid Formulation: Dilute 3000-5000 times for foliar spray; apply 50-100g/acre for soil application.
• 90% Powder Formulation: Dilute 15,000-20,000 times for foliar spray; apply 5-10g/acre for soil application.
• Fertilizer Efficiency Enhancer (95% Powder Formulation):
  • Add 50-100g/ton to organic fertilizers.
  • Add 0.5-2kg/ton to water-soluble fertilizers.
  • Add 3-5kg/ton to foliar fertilizers.