fact
Starch is a plant’s energy store
A sauce thickener starts with a job inside a plant.
The starch in corn and potatoes is made from long chains built from glucose units.
Plants use starch for energy storage. Its major components include amylose and the more highly branched amylopectin. Those organized chains behave differently from loose sugar molecules, helping explain why starch can thicken a water-based food instead of simply acting like granulated sugar.
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Behind the explanation
- American Chemical Society: Amylopectin ↗
Starch stores energy in plants and contains glucose polymers, including branched amylopectin and less-branched amylose; starch thickens water-based foods.
Version 1 · Sources checked 2026-09-25