KAPPA-SELENOCARRAGEENAN

Synonyms: Seleno-kappa-carrageenan, Kappa-carrageenan selenium, Selenium-modified kappa-carrageenan, Se-KC, Selenated carrageenan

As formulators seek to combine the health benefits of selenium with the functional properties of hydrocolloids, kappa-selenocarrageenan has emerged as a novel ingredient in functional foods and nutraceuticals. Its unique structure allows for the delivery of selenium in an organic, bioavailable form while leveraging the gelling and stabilizing properties of carrageenan. This dual functionality makes it particularly attractive for products targeting immune support, antioxidant defense, and thyroid health.

Kappa-selenocarrageenan is a semi-synthetic derivative of kappa-carrageenan, a sulfated polysaccharide extracted from red algae. Through a controlled chemical modification, selenium is covalently incorporated into the carrageenan backbone, typically as selenate or selenite esters. The resulting compound retains the characteristic gelling behavior of kappa-carrageenan but introduces selenium as an integral component, offering a convenient way to fortify foods and supplements with this essential trace mineral.

Standardized to consistent selenium content, kappa-selenocarrageenan is available in various grades to suit different applications. Its water solubility and gelling properties make it suitable for aqueous systems, while its organic selenium form ensures better absorption and lower toxicity compared to inorganic selenium salts. This ingredient is particularly valued in markets where clean-label and multifunctional additives are in demand.

Product Overview & Composition

Kappa-selenocarrageenan is composed of a kappa-carrageenan backbone with selenate groups esterified to the sulfate moieties. The carrageenan itself is a linear polymer of D-galactose and 3,6-anhydro-D-galactose with alternating α-(1→3) and β-(1→4) linkages, and it carries one sulfate group per disaccharide repeat unit. In the selenated form, a portion of these sulfate groups is replaced by selenate, resulting in a selenium content that can be tailored during synthesis. The covalent bond between selenium and the polysaccharide ensures that the mineral is not simply a physical mixture but an integral part of the molecule.

The degree of selenation influences both the physicochemical properties and the nutritional value. Typical products contain between 0.5% and 2.0% selenium by weight, which corresponds to a substitution degree that maintains water solubility and gelling ability. The off-white to light tan powder is easily dispersible in hot water and forms thermoreversible gels upon cooling, similar to native kappa-carrageenan. This makes it a convenient vehicle for incorporating selenium into a wide range of food matrices without compromising texture.

Key Applications

• Functional food and beverages: Used to fortify products with selenium while providing gelling or thickening functionality, ideal for dairy alternatives, jellies, and plant-based drinks.
• Dietary supplements: Incorporated into capsules, tablets, and powders as a source of organic selenium, often combined with other micronutrients for immune and antioxidant support.
• Nutraceutical formulations: Leveraged for its potential synergistic effects with other bioactive compounds, such as polyphenols or omega-3 fatty acids, in heart and cognitive health products.
• Pharmaceutical research: Investigated as a drug delivery matrix for controlled release of selenium and as a potential anticancer agent in preclinical studies.
• Cosmeceuticals: Explored for topical applications due to selenium’s antioxidant properties, though stability and skin penetration are areas of ongoing research.

Quality & Standards

Packaging & Supply

• Packaging: 25 kg net weight in fiber drums with double polyethylene inner liners, or as requested.
• MOQ: 100 kg for standard grades; custom specifications may require higher MOQ.
• Lead time: 3-5 business days (stock items)
• Documentation: COA, MSDS, TDS, and nutritional data sheets available upon request.

Request For Quote

• LyvBio Co., Ltd. — Email: info@lyvbio.com