Products on agar or pectin: functional gelling agents in modern nutriscience Introduction: From texture to health Agar-agar and pectin are not just gelling substances replacing gelatin in cooking. They are bioactive polysaccharides with proven physiological effects that transform food products from a simple dessert into a potential functional element of the diet. Their use, especially in the context of trends in plant-based nutrition, gut health, and calorie reduction, puts confectionery and other products in a new category — with controlled texture and added nutritional value. Chemical nature and origin: two types of fiber Agar-agar is a mixture of polysaccharides (agarose and agaropectin) extracted from the cell walls of red algae (species Gelidium, Gracilaria). It is an insoluble in cold water dietary fiber. When heated with water (to 85-95°C), it dissolves, and upon cooling to 35-40°C, it forms a thermoreversible gel with high strength. Pectin is a complex polysaccharide (galacturonic acid) contained in the cell walls of plants, especially in fruits (apples, citrus fruits, beets, pumpkin). It is a soluble dietary fiber. Gel formation occurs in the presence of acid and sugar (at high concentrations) or calcium ions (in the case of low-esterified pectin). Apple and citrus pectins are most commonly used in industry. Thus, both agents are forms of dietary fiber, but with different chemical properties and gelling mechanisms. Nutritional and physiological effects: benefits beyond gelling The key value of agar and pectin lies not in their ability to create a gel, but in their prebiotic and metabolic action in the gastrointestinal tract. Agar-agar: Zero calories and a feeling of fullness: Agar is almost not digested by the human body, passing through the gastrointestinal tract unchanged. In the stomach, it swells, increasing in volume up to 20-30 times, creating a persistent feeling of satiety. This is used in dietetics for appetite control. Detoxification and peristals ... Read more