Laminaribiose is a disaccharide composed of two glucose molecules linked by a β-1,3-glycosidic bond. It is commonly found in various plant cell walls and is a hydrolysis product of the polysaccharide laminarin. Laminaribiose has multiple applications in biochemical research, particularly as a substrate for enzymes involved in carbohydrate metabolism. Additionally, it serves as a carbon source for certain microorganisms and as a dietary supplement.