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

分析表明,酶的失活是因为丁二酮修饰了精。

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

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。