Qu'est-ce que Glycerol Ester of Wood Rosin / Ester Gum (E445) ? Applications, dosage, alternatives et spécifications

Glycerol Esters of Wood Rosin, commonly known as Ester gomme, Rosin Glyceride, Glyceryl Rosinate, also called Glycerol Ester of Rosin, est un light-colored thermoplastic resin produced by the esterification of wood rosin (a naturel resin harvested from pine trees) with qualité alimentaire glycerol. It est un multifunctional additif alimentaire and industrial tackifying resin, with wide application value in the global industrie alimentaire, adhesives, coatings, and daily chemical industry. Its CAS number is 8050–31–5, INS number is 445(iii), UE E number is E445, and CNS number is 10.013. It has no precise chemical structural formula, with the main components being triabietin (glyceryl triabietate) and smaller amounts of diabietin (glyceryl diabietate) and monoabietin. Glycerol Esters of Wood Rosin est un synthétique compound formed by the esterification of wood rosin (a naturel resin from pine trees) with plant-derived glycerol. It est un pale, thermoplastic rosin ester with properties that make it suitable for various applications. Because wood rosin is sourced from renewable naturel resources, Glycerol Esters of Wood Rosin combines naturel attributes with a lower environmental footprint compared to traditional synthétique additives such as brominated vegetable huile [0†L14-L16]. Compared with rosin, it has a significantly lower acid value, reduced brittleness and tack, improved weather resistance, and is no longer corrosive to metals. Depending on the matière première source, Glycerol Esters of Wood Rosin can be classified into gomme Rosin Glycerol Ester, Wood Rosin Glycerol Ester (GEWR), and Tall huile Rosin Glycerol Ester. Among these, GEWR is the most widely used variety in the industrie alimentaire. Industrial-grade ester gum est largement utilisé in adhesives, coatings, inks, rubber, and electronic encapsulating materials. Different types of ester gum can be further modified by hydrogenation, polymerization, or partial dimerization to adjust properties such as softening point, color, oxidation resistance, and odor. In the industrie alimentaire, Glycerol Esters of Wood Rosin is mainly used as a weighting agent and emulsifying stabilisant. In citrus-flavored beverages, ester gum acts as a weighting agent to increase the density of the huile phase, making it closer to the density of water, thereby preventing huile separation and “ringing” and ensuring uniform distribution of ingredients. It has a naturel emulsifying stabilizing effect [8†L15-L20]. In chewing gum and bubble gum, ester gum is used as a gum base component, providing excellent elasticity, chewiness, and improved mouthfeel. Ester gum est un lipophilic émulsifiant with beverage-stabilizing properties and can be used to adjust the density of citrus huiles. In the industrial field, Glycerol Esters of Wood Rosin est largement utilisé as a tackifying resin in hot-melt adhesives, pressure-sensitive adhesives, EVA hot-melt adhesives, and sealants. It forms transparent systems avec une haute-performance polymers. In coatings, inks, and the rubber industry, ester gum rehausse gloss, adhesion, and weatherability, and est unlso an important component of paints, bookbinding adhesives, and pipe adhesives.

Glycerol Esters of Wood Rosin est reconnu comme a naturel, multifunctional additif alimentaire weighting agent and industrial tackifying resin, holding an important position in modern food, beverage, adhesive, and coating industries. Its most outstanding core advantages lie in its renewable naturel origin, its excellent emulsifying and suspension stability in beverage systems, and its exceptional tackifying and flexibility-modifying properties for adhesives and coatings.

Renewable Naturel Origin: Glycerol Esters of Wood Rosin is made from pine tree rosin and plant-derived glycerol, making it a bio-based, renewable material. Compared to traditional synthétique additives like brominated vegetable huile, ester gum offre naturel attributes and a lower carbon footprint, meeting the growing global demand for clean-label, durable, and respectueux de l'environnement materials in food and industrial markets. Ester gum produced by companies like Eastman is manufactured under rabbinical supervision for Kasher certification and Hallal certification, expanding its application in diverse global markets.