Highly Active Brown Algae Oligosaccharide Disease Resistant Green Planting Biostimulant

Introduction to Brown Algal Oligosaccharides

Brown Algal Oligosaccharides are a complex blend of diverse oligosaccharide fractions extracted from brown algae, with alginic acid and oligosaccharides serving as the key active components. As a natural biostimulant, they can partially substitute chemical fertilizers and pesticides, mitigate environmental pollution, and align with national strategies for green agricultural development. The product is presented as a milky white powder or light brown liquid, free of any visible impurities under standard visual examination.

Product Composition

Main Application Areas

Agricultural Benefits

1. Promotes Plant Growth

   • Seed Germination and Root Development: Brown algal oligosaccharides can break seed dormancy and boost germination rates in crops such as peas, barley, and corn. They promote root growth and vitality by elevating indole-3-acetic acid (a key growth hormone) levels. For instance, soaking pea seeds in brown algal oligosaccharides markedly increases seedling biomass, root length, and chlorophyll content.
   • Enhanced Photosynthesis: By increasing chlorophyll content and light energy conversion efficiency, they promote photosynthesis and accelerate dry matter accumulation, ultimately improving crop yields.

2. Enhances Stress Resistance

   • Drought and Salinity Resistance: Brown algal oligosaccharides trigger the production of abscisic acid (ABA) and soluble sugars, boosting antioxidant enzyme activity and lowering stress damage indicators like malondialdehyde. For example, a 0.2% brown algal oligosaccharide solution markedly enhances the drought tolerance of tomato seedlings.
   • Resistance to Low Temperatures and Diseases: As signaling molecules, they activate plant disease resistance genes, inducing the synthesis of protective substances and toxins to inhibit pathogen infection (e.g., tobacco mosaic virus).

3. Optimizes Nutrient Absorption and Fertilizer Utilization
   The carboxyl and hydroxyl groups in brown algal oligosaccharides can chelate ammonium nitrogen from nitrogen fertilizers, minimizing nitrogen loss and facilitating the uptake of nutrients such as phosphorus, calcium, and magnesium. Studies indicate that incorporating brown algal oligosaccharides into compound fertilizers boosts nitrogen use efficiency in crops including cabbage and cucumber by more than 20%.

4. Increases Yield and Quality
   By boosting carbon-nitrogen metabolism and cell division, brown algal oligosaccharides can raise individual fruit weight and yield per unit area. For instance, in cabbage cultivation, the experimental group treated with brown algal oligosaccharides achieved a 15%–30% yield increase over the control group, along with notable rises in fruit sugar and vitamin content.

Aquaculture Benefits

1. Promotes Growth and Reduces Feed Costs
   As a feed additive at an inclusion rate of 0.25%–0.5%, brown algal oligosaccharides can accelerate the growth rate of aquatic organisms like rainbow trout, reduce the feed conversion ratio (the amount of feed required for weight gain), and improve the nutritional quality of fish muscle, such as protein content.

2. Enhances Immunity
   Brown algal oligosaccharides activate non-specific immune pathways such as lysozyme activity, boosting the resistance of aquatic animals to bacteria and viruses and lowering disease incidence. For instance, supplementing rainbow trout feed with brown algal oligosaccharides markedly improves survival rates.

Feed Benefits

1. Maintains Gut Health

   • Reduces Inflammation: Brown algal oligosaccharides mitigate intestinal mucosal inflammation by regulating the mannan receptor signaling pathway, repairing the mitochondria and microvilli structures of intestinal epithelial cells. Experiments show that brown algal oligosaccharides significantly improve intestinal mucositis induced by chemotherapy in mice.
   • Regulates Microbial Communities: By promoting the proliferation of beneficial gut bacteria (such as lactobacilli) and inhibiting pathogenic bacteria, they optimize gut microecological balance, thereby enhancing livestock immunity.

2. Improves Production Performance
   Adding brown algal oligosaccharides to feed can improve feed conversion rates, promote weight gain, and reduce reliance on antibiotics, aligning with the needs of green and healthy farming practices.