Brown seaweed oligosaccharides are linear oligomers derived from brown seaweed, primarily composed of β-D-mannuronic acid (M) and α-L-guluronic acid (G). They are the low molecular state of alginate (brown alginate), a light yellow-brown powder that is completely water-soluble and free of viscosity after dissolution.
I. Several Key Concepts:
AlginateIt is a naturally occurring glucuronic acid found in brown algae like seaweed and kelp, typically combined with cations, existing as sodium. It possesses properties such as thickening, water absorption, gel formation, and film formation. It is one of the natural carbohydrate substances in seaweed, with alginic acid, fucose polysaccharides, and wakame starch being the main carbohydrate substances in brown algae.
Seaweed Extracts:Strictly speaking, seaweed extracts refer to the total name of water-soluble substances obtained through the degradation of brown algae, which is achieved by the combined action of cellulase and fucoidan lyase. These extracts include active substances such as fucoidan oligosaccharides, fucose polysaccharides, kelp starch, kelp polyphenols, mannitol, betaine, cytokinin, auxin, zeatin, and indole-3-acetic acid, etc.
Brown Algae Oligosaccharides: BrownAlginate oligosaccharides are polymers of β-D-mannuronic acid (M) and α-L-guluronic acid (G) with a polymerization degree between 2-10, obtained by hydrolysis of alginic acid with fucoidanase.
Other concepts related to seaweed:Names like alginate and algin are colloquial terms, lacking uniformity and standardization.
Brown Algae Gelatinase
Dual-core patent; Fucusanase activity reaches 300,000 U/mL; half-life of 180 hours at 60°C; cost-effective and efficient preparation of fucoidan oligosaccharides.
Section 3: Features of Our Brown Algae Oligosaccharides
1. Pure enzymatic process, forming double bonds during reaction: The unsaturated (double bond) fucoidan oligosaccharides produced are the fundamental reason for their excellent activity, while fucoidan oligosaccharides prepared by chemical methods have almost no activity.
2. High PolyG degradation specificity: The spatial structure of polyG readily forms gels with metal ions, ensuring the high recombinability of brown algae oligosaccharides through poly degradation specificity.
3. Low molecular weight, polymerization degree between 2-4, molecular weight 400-800, high activity: The brown algae oligosaccharides with polymerization degree less than 5 are more significant for plant root growth and salt tolerance.
Four: Mechanism of Action of Brown Algae Oligosaccharides
Fifth, the benefits of brown seaweed oligosaccharides
1. Growth Promotion & Increased Yield: Brown algae oligosaccharides can induce the synthesis of indole-3-acetic acid (IAA), the plant growth hormone, leading to rapid root development and germination, promoting growth, enhancing the utilization of fertilizers (especially nitrogen fertilizers), and ultimately achieving increased yield.
2. Enhance Crop Stress Resistance: Fucus oligosaccharides, as signaling molecules, can activate the jasmonic acid and salicylic acid signaling pathways in crops. Both jasmonic acid and salicylic acid are signaling molecules that trigger plant responses to external injuries and the expression of resistance genes. Salicylic acid can inhibit the synthesis of jasmonic acid and the expression of protein genes induced by it; jasmonic acid can prevent the increase of salicylic acid after pathogen infection. There is an overlap between the jasmonic acid signaling pathway and the salicylic acid signaling pathway, with small GTP-binding proteins and cytokinin possibly acting as signal switches.
3. As an enhancer: boost fertilizer and medicinal effects, reduce weight and medication, minimize drug side effects.
Six: Dosage of brown algae oligosaccharide as a fertilizer enhancer
1. Subsurface Irrigation: 5-10g per mu, with a slight increase in fruit tree areas.
2. Page Spraying: 0.3-0.5g per 15kg of water.
3. Add 0.4-1kg/ton of urea or compound fertilizer, 0.5-1kg/ton of fertigation, and 5-10kg/ton of foliar fertilizer.
Section 7: Packaging Specifications:
25 kg paper drum packaging


































