燕窩(Edible bird’s nest /cubilose)是燕子口水的分泌物。1223Please respect copyright.ＰＥＮＡＮＡs1XaoC49Fe
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燕窩乾塊約有50-62%的成份是蛋白質，用上2小時燉煮方式的話，約有5%的蛋白質會進入液體部份。1223Please respect copyright.ＰＥＮＡＮＡUhCdp3E4yC
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（圖2）白燕與血燕的顏色分別，相信是基建於Nitrite含量的不同(Ref2)。1223Please respect copyright.ＰＥＮＡＮＡeDFcU9JtWD
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血燕Nitrite含量較高，因而呈現紅色。隨著Nitrite含量越低，便會相繼呈現黃色或白色。1223Please respect copyright.ＰＥＮＡＮＡ78ByDt0wVD
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燕窩中能找出一隻酶素Nitrate Reductase，能夠將Nitrate轉變成為Nitrite。1223Please respect copyright.ＰＥＮＡＮＡENw3sk2deW
同時間，燕窩中亦存有能夠抑制那隻Nitrate Reductase的物質(Ref1)。1223Please respect copyright.ＰＥＮＡＮＡIcdYzDLJhb
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（圖3）燕窩中蛋白質含量最高的是一種與人類Muc-5AC蛋白質非常相似的蛋白質。1223Please respect copyright.ＰＥＮＡＮＡF6NdK5j1VA
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血燕及白燕中同樣能找到，但實際功用及功效暫時尚未清楚。1223Please respect copyright.ＰＥＮＡＮＡKSZUtqxFGe
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Ref1:https://academic.oup.com/fqs/article/1/1/83/47917231223Please respect copyright.ＰＥＮＡＮＡAIYIReOBVm
Ref2:https://www.sciencedirect.com/science/article/pii/S0956713513002934?casa_token=ZEAqbH90e0MAAAAA:FJo2m6F0yfjJbCcffoR0kO5FhFVtqFVdmD31Som_eNmP9moUJlX33WGNX1uaUP2mm51uaIvlSEAF1223Please respect copyright.ＰＥＮＡＮＡEnppmHROXr
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