Locust bean gum
From Cookipedia
Locust bean gum (E410) aka Carob bean gum and Carubin is extracted from the kernels of the carob tree Ceratonia siliqua. It forms a food reserve for the seeds and helps to retain water under arid conditions. It is used as a thickener in cream cheese, dairy desserts, ice-cream and condiments and completely natural, it acts as a thickening agent without adding any calories to the final product. It is the preferred texturiser for various food applications due to its natural image, neutral taste and the very creamy texture it provides.