Vitamin C as Reducing Agent

概要

Ascorbic acid (vitamin C) reduces iodine to iodide while being oxidized to dehydroascorbic acid. The enediol group on ascorbic acid is the active reducing center, losing two electrons. This reaction is the basis of the standard method for determining vitamin C content in foods.

参加者

日常の例

School science experiments often measure vitamin C in different juices by titrating with iodine solution until the starch indicator turns blue-black.

産業上の重要性

ビタミンCのヨウ素滴定は標準的な医薬品品質管理法である。食品中のアスコルビン酸の抗酸化作用はその還元性に基づく。