Pectin has emerged as the third-largest food hydrocolloid by revenue, and is a crucial natural source of polysaccharides in the food, biological, and … pectin, any of a group of water-soluble carbohydrate substances that are found in the cell walls and intercellular tissues of certain plants. In the fruits of plants, pectin helps keep the walls of adjacent cells joined together. Pectin is defined as a natural product derived from fruit with a wide range of functional properties, commonly used as a textural ingredient and stabilizer in various food applications. AI generated definition based on: Encyclopedia of Food Sciences and Nutrition (Second Edition), 2003 Learn more about the thickener & gelling agent – Pectin (E440), from fruit sources; three types; food uses; safety; health benefits and so on.