noun 下载 🔗分享 果胶 A polysaccharide extracted from the cell walls of plants, especially of fruits; under acidic conditions it forms a gel. It is often used in processed foods, especially jellies and jams where it causes thickening (setting). Examples : "Apple is rich in pectin and so is often added to other fruits when making jam so it will set." 苹果富含果胶，所以在制作果酱时，经常会加入苹果和其他水果一起熬煮，这样果酱更容易凝固成型。 substance chemistry food fruit biochemistry plant science 与AI对话词汇游戏阅读练习
