Locust bean gum (LBG), còn được gọi là carob bean gum, is chiết xuất từ the endosperm of seeds of the carob tree (Ceratonia siliqua). It is a galactomannan polysaccharide with a lower degree of galactose substitution compared to guar gum, which gives it unique chức năngal properties. LBG requires heat to fully hydrate and develop độ nhớt.
This makes it particularly suitable for hot-processed food systems. It is best known for its powerful synergistic interactions with xanthan gum and carrageenan. This produces elastic, cohesive gels that neither hydrocolloid can form alone. Locust bean gum được sử dụng rộng rãi in dairy, confectionery, and bakery ứng dụng for its excellent mouthfeel and kết cấu-building properties.