Product Introduction

Lignin powder/liquid is a byproduct of the pulp and paper industry, found in wood and straw, comprising approximately 20-28% of their mass. During the pulping process, lignin is separated as a major byproduct of the cellulose industry. After processing, it can be transformed into lignin powder or liquid, which appears as a yellowish-brown or reddish-brown powder or liquid.

Product Composition

Main Applications

Agricultural Applications

1. Soil Improvement and Fertility Enhancement

   • Soil Structure Improvement: The porous and colloidal properties of lignin powder enhance soil aggregation, improving aeration and moisture retention while alleviating compaction.
   • Slow-Release Fertilizer Carrier: By combining with chemical fertilizers (like urea and phosphates), lignin can adsorb and slowly release nutrients, minimizing leaching and increasing fertilizer efficiency.
   • Organic Matter Increase: As a natural organic carbon source, lignin promotes microbial activity in the soil, accelerating organic matter accumulation.

2. Pollution Remediation and Heavy Metal Passivation

   • Heavy Metal Adsorption: Functional groups such as phenolic hydroxyl and carboxyl groups in lignin can chelate heavy metals (like lead, cadmium, and arsenic) in the soil, reducing their bioavailability.
   • Pesticide Residue Degradation: Promotes microbial metabolism to accelerate the breakdown of organic chlorine pesticides.

3. Plant Stress Resistance and Growth Regulation

   • Drought Resistance and Water Retention: Lignin can absorb water and form a gel, reducing evaporation and enhancing crops' drought resistance.
   • Induction of Disease Resistance: Some lignin derivatives (like lignosulfonates) can activate plant defense systems, inhibiting soil-borne diseases (like root rot).

Aquaculture Applications

1. Water Quality Purification and Stabilization

   • Harmful Substance Adsorption: The porous structure of lignin powder can adsorb ammonia nitrogen, nitrites, heavy metals, and organic pollutants, improving water quality.
   • Algal Bloom Suppression: Competes for nutrients or releases algicidal substances (such as phenolic compounds) to reduce excessive blue-green algae growth.

2. Feed Additive

   • Fiber Supplement: Serves as a dietary fiber source for aquatic animals (like grass carp and shrimp), promoting gut motility and digestive health.
   • Immune Enhancement: Lignin derivatives (such as sulfonated lignin) can stimulate immune cell activity, improving disease resistance.

3. Eco-Friendly Aquaculture Materials

   • Biodegradable Netting: Can be combined with biodegradable plastics to create aquaculture facilities, reducing traditional plastic pollution in water bodies.

Feed Applications

1. Functional Feed Additive

   • Improving Digestive Health: The fiber content in lignin powder can regulate rumen fermentation in ruminants, enhancing roughage utilization; in monogastric animals, it promotes the proliferation of beneficial gut bacteria.
   • Mycotoxin Adsorption: Physically adsorbs mycotoxins like aflatoxins and deoxynivalenol, safeguarding animal health.

2. Manure Management

   • Odor Control: When added to livestock bedding, lignin can absorb harmful gases like ammonia and hydrogen sulfide, improving air quality in farming facilities.
   • Manure Treatment: Acts as a composting conditioner, accelerating manure fermentation and reducing pathogens and odors.

3. Antibiotic Replacement Potential

   • Antimicrobial Properties: Phenolic compounds in lignin exhibit inhibitory effects against E. coli and Salmonella, potentially serving as a partial substitute for antibiotics.

Wuhan Jingshida Industrial Co., Ltd. was established in March 2015 and is located in the charming city of Wuhan. It is a wholly-owned private enterprise. Since its establishment, the company has been committed to deep cultivation and innovation in the agricultural field, focusing on the research and development of products such as organic fertilizers, water-soluble fertilizers and aquatic feeds. In 2017, Jingshida successfully registered its own trademark and won the honor of National High-tech Enterprise in 2023, which means that the company's technical strength and innovation capabilities have been recognized by the country. Jingshida has always adhered to the concept of sustainable development and is committed to promoting the development of ecological agriculture, improving the ecological environment, and contributing to the healthy life of mankind.