What is pectin?
Pectin is a "gum" or type of fiber found around and inside plant cell walls and is the main ingredient responsible for formation of a gel in jams and jellies. Because pectin is a soluble fiber, it dissolves or swells when put into water.
For example, the skin of an apple contains pectin.
Tart apples, cranberries, sour plums, concord grapes,
quinces, gooseberries, red currants, and crabapples are
also especially high in pectin. Under-ripe fruit has
more pectin than fully ripe fruit. When you make jams
and jellies without added pectin, one-fourth of the
fruit should be under-ripe.
Barbara Willenberg, former
Nutritional Sciences Extension Associate, University of
Missouri-Columbia and Robin Gammon, LD, RD, Nutritional
Sciences Extension Associate, University of
Last update: Tuesday, May 05, 2009