Pectose exists in the fleshy pulp of unripe fruit;during the process of ripening it changes to pectin;by cooking, pectin is changed to pectosic acid, and by longer cooking to pectic acid.
重合果
存
于未成熟果子的肉浆
，成熟过程
成质，
时质成重合果酸。
糖；重合果Pectose exists in the fleshy pulp of unripe fruit;during the process of ripening it changes to pectin;by cooking, pectin is changed to pectosic acid, and by longer cooking to pectic acid.
重合果存于未成熟果子的肉浆，成熟过程成质，时质成重合果酸。
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