Enzyme 2 1 2020111 1 Enzyme 2 2

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Enzyme 2 -1: 澱粉酶活性之測定 2020/11/1 1

Enzyme 2 -1: 澱粉酶活性之測定 2020/11/1 1

Enzyme 2 -2 : 澱粉酶最適p. H之測 定 2020/11/1 7

Enzyme 2 -2 : 澱粉酶最適p. H之測 定 2020/11/1 7

DNS (3, 5 -dinitrosalicylic acid) p 3, 5 -二硝基水楊酸 (3, 5 -dinitrosalicylic acid, DNS）試劑之

DNS (3, 5 -dinitrosalicylic acid) p 3, 5 -二硝基水楊酸 (3, 5 -dinitrosalicylic acid, DNS）試劑之 反應是利用DNS具還原力之特性，因此碳水化合物只要具 有游離或游離趨勢之醛或酮基，即能在鹼性溶液下有還原 的能力而進行以下反應： 鹼性環境下： 3, 5 -dinitrosalicylic acid （yellow） reduction 3 -amino-5 -nitrosalicylic acid （orange-red） COO- COOOH O 2 N 2020/11/1 NO 2 OH O 2 N NH 2 9

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