Amino acid analysis showed that the inactivation of the enzyme was due to the modification of the arginyl residue by butanedione( Table3).

氨析表明,酶的失活是因为丁二酮修饰了精氨。

Butanedione (diacetyl) is an important aroma chemical with strong butter flavor.In traditional method, 2, 3-Butanedione is produced via synthetic way.

摘要2，3-丁二酮又称双乙酰，是一种黄至浅绿有强烈奶油香味的重要香料。