pectin

American  

[pek-tin] / ˈpɛk tɪn /

noun

Biochemistry.

1. a white, amorphous, colloidal carbohydrate of high molecular weight occurring in ripe fruits, especially in apples, currants, etc., and used in fruit jellies, pharmaceuticals, and cosmetics for its thickening and emulsifying properties and its ability to solidify to a gel.

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pectin British  

/ ˈpɛktɪn /

noun

1. biochem any of the acidic hemicelluloses that occur in ripe fruit and vegetables: used in the manufacture of jams because of their ability to solidify to a gel when heated in a sugar solution (may be referred to on food labels as E440 ( a ))

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pectin Scientific  

/ pĕk′tĭn /

1. Any of a group of carbohydrate substances found in the cell walls of plants and in the tissue between certain plant cells. Pectin is produced by the ripening of fruit and helps the ripe fruit remain firm. As the fruit overripens, the pectin breaks down into simple sugars (monosaccharides) and the fruit loses its shape and becomes soft. Pectins can be made to form gels, and are used in certain medicines and cosmetics and in making jellies.

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Other Word Forms

• pectic adjective
• pectinaceous adjective
• pectinous adjective

Etymology

Origin of pectin

1830–40; < Greek pēkt ( ós ) fixed, congealed ( pectic ) + -in ²

Example Sentences

Cranberries are high in pectin, a soluble starch that forms a gel and is used as a setting agent in making jams and jellies, which is why they thicken readily with minimal cooking.

From Salon

The process also activates pectin, an acidic polysaccharide present in many fruits that sets the jam into a spreadable gel.

From Salon

Farmhouses across the nation practically required at least one of the long-lived trees because of quinces’ natural pectin, an important gelling ingredient in preserves.

From Seattle Times

Tips: There are different brands of powdered pectin, so the amount needed may change depending on which you buy.

From Seattle Times

The fiber pectin is found mainly in an apple's pulp.

From Salon

Related Words

• gelatin
• jelly
• marmalade