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熱門關鍵詞：啤酒設備精釀啤酒設備酒吧啤酒設備啤酒廠設備

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釀酒設備廠家分享氮類物質的代謝

作者：山東天泰人氣：发布日期： 2021-09-22

信息摘要：

啤酒設備在酿造精釀啤酒时，不仅对啤酒設備的质量有要求，而且在酿造精釀啤酒的过程中，在发酵初期，酵母直接吸收氨基酸;在发酵阶段，氨基酸被转化产生新的物质，这些物质被用来合成细胞蛋白质和其他含氮化合物。麦汁含有氨基酸、多肽、蛋白质、嘌呤、嘧啶和许多其他含氮物质。这些含氮物质对酵母的繁殖和同化非常重要，对啤酒的理化性质和风味特性起主导作用。

啤酒設備在酿造精釀啤酒时，不仅对啤酒設備的质量有要求，而且在酿造精釀啤酒的过程中，在发酵初期，酵母直接吸收氨基酸;在发酵阶段，氨基酸被转化产生新的物质，这些物质被用来合成细胞蛋白质和其他含氮化合物。麦汁含有氨基酸、多肽、蛋白质、嘌呤、嘧啶和许多其他含氮物质。这些含氮物质对酵母的繁殖和同化非常重要，对啤酒的理化性质和风味特性起主导作用。
例如，天冬氨酸、谷氨酸和天冬酰胺作爲唯一的氮源可以被有效同化，而甘氨酸、賴氨酸和半胱氨酸不能作爲唯一的氮源。在培養基中，兩種氨基酸的同化率比單一氨基酸的同化率高10%。如果使用三種氨基酸，同化率可進一步提高8%。因此，含多種氨基酸的麥汁對氮的同化率較高。
酵母轉化麥汁中的氨基酸有不同的可能性;酵母吸收麥汁中氨基酸的順序與可發酵糖相同。

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