Specific molecular weight chitosan, due to differences in their physicochemical properties, exhibit targeted applications in various fields. Tianya Chemical stands at the forefront of providing high-purity, precisely calibrated chitosan products tailored to these diverse needs.
Low molecular weight chitosan (usually < 50 kDa) has excellent water solubility and is easily bioavailable. In the pharmaceutical field, it can be used as a drug carrier to achieve sustained release or targeted delivery of active ingredients, and can also directly exert antibacterial effects for the preparation of wound dressings. In the food industry, it can serve as a preservative to inhibit the reproduction of pathogenic bacteria, extend the shelf life of food, and can also be used as a raw material for health products to assist in regulating metabolism.
Medium molecular weight chitosan (50-300 kDa) has both certain water solubility and film-forming properties. It is an efficient flocculant in water treatment, capable of adsorbing heavy metal ions and organic pollutants. In the textile field, it can be used as a finishing agent to endow fabrics with antibacterial and wrinkle-resistant properties. In agriculture, it can act as a plant growth regulator to promote crop root development and enhance stress resistance.
High molecular weight chitosan (> 300 kDa) has high mechanical strength and excellent film-forming properties. In the biomedical field, it can be used to make biodegradable surgical sutures and tissue engineering scaffolds. In the packaging industry, it can be made into films or coatings to improve the barrier properties and antibacterial properties of materials. In the papermaking industry, it serves as a reinforcing agent, which can improve paper strength and water resistance.
By selecting chitosan with a specific molecular weight, it can accurately match the requirements for water solubility, mechanical properties, biocompatibility, etc. in different scenarios, maximizing its application value. At Tianya Chemical, we combine rich expertise in polysaccharide chemistry with state-of-the-art manufacturing facilities to deliver chitosan solutions that align with your exact specifications. Contact us today to explore how our specific molecular weight chitosan can elevate your products and processes.

