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.
存在于未成熟子的肉浆中，在成熟过程中它变成质，在烹饪时质变成酸。
糖；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.
存在于未成熟子的肉浆中，在成熟过程中它变成质，在烹饪时质变成酸。
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