联乙酰
The article briefly introduces the production of biacetyl and the relations of fermentation technology and biacetyl. 简述了啤酒中双乙酰的形成机制及发酵工艺与双乙酰的关系,提出了在啤酒实际生产中双乙酰含量的控制方法。
The applications of SKALAR brand interval flow analyser in the analysis of fermentation liquid and content of product biacetyl were introduced. 介绍利用SKALAR间隔流动分析仪对发酵液、成品双乙酰含量的分析,并对SKALAR与GB法的分析结果进行比较、分析。
METHODS Linezolid was prepared by the steps of substitution,reduction,acylation and condensation with biacetyl compond from the starting material 3,4-difluoronotrobenzene. 方法以3,4-二氟硝基苯为原料,经取代、还原、酰化、再与侧链双乙酰化合物缩合得到目标化合物。
METHODS Linezolid was prepared by the steps of substitution, reduction, acylation and condensation with biacetyl compond from the starting material 3,4-difluoronotrobenzene. 方法以3,4-二氟硝基苯为原料，经取代、还原、酰化、再与侧链双乙酰化合物缩合得到目标化合物。
Furthermore, we think the catalytic reaction in gas-solid phase is the superior developing trend and in this reaction,2,3-butylene-glycol should be replaced by cheap biacetyl. 本文认为,2,3-二甲基吡嗪的合成发展趋势应采用气固相催化反应的方法,建议以价廉的丁二酮取代以往气相法中以2,3-丁二醇为原料的路线。
