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Collagen protein is a important structural protein of animal, which contains abundant Glycocine (Gly), Pro-line (Pro) and Hydroxyproline (Ohp). 摘要膠原蛋白是動物體內結締組織的重要結構蛋白，其中富含甘氨酸、脯氨酸和羥脯氨酸。