Dextrinbased

Dextrinbased refers to materials or products in which dextrin is the primary component or a key functional modifier. Dextrins are a family of low-molecular-weight glucose polymers produced by partial hydrolysis of starch, resulting in chains of varying length. They are typically produced by acid hydrolysis or enzymatic treatment and can be obtained as powders or solutions for use in different formulations.

Dextrin grades vary by degree of hydrolysis and color. Common types include white dextrin, yellow dextrin, and British gum dextrin. The length of the sugar chains influences properties such as solubility, viscosity, and film-forming ability. Dextrin-based materials are often formulated to balance tackiness, binding strength, and moisture sensitivity, and may be combined with other polymers to achieve desired performance.

Key properties of dextrin-based materials include good film-forming capability, moderate adhesive strength, and water sensitivity that can be tuned through processing and additives. They are generally edible and biodegradable, with a relatively low toxicity profile. Depending on the grade and formulation, dextrin can act as a binder, thickener, disintegrant, or coating agent, and can be processed into powders, gels, or films.

Applications span several sectors. In adhesives, dextrin-based formulations are used for paper, wood, and envelope seals, as well as stamp gums. In the pharmaceutical industry, dextrin serves as a binder and excipient in tablet formulations. In food and nutraceuticals, dextrin acts as a thickener, bulking agent, or carrier. Dextrin-based coatings and films are used for edible coatings and biodegradable packaging, while textile sizing and microencapsulation are additional areas of use.