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，是一种黄色至浅绿色具有强烈奶油香味的重要香料。

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

氨基酸分析表明,酶的失活是因为丁二酮修饰了精氨酸残基。