麝香T生产工艺的改进

对麝香T的主要生产过程聚合、解聚、精馏、脱色、过滤的改进进行了论述 ,提出了比较理想的操作条件和操作过程。新工艺粗品的收率由 70 %～ 75 %提高到 90 %～ 92 % ,纯度由 90 %～ 92%提高到 95 %以上 ,外观亦有很大改善 ,而且聚合、解聚由 3 0h缩短为 2 3～ 3 4h ,精馏缩短 1 3 。

麝香T的合成研究及工业化实践

叙述了合成麝香T的反应机理、反应条件 (温度、压力、搅拌、设备设计等 ) ,对可能发生的副反应做出分析和判断 ;从而在反应催化剂的选择上 ,使聚合解聚二个反应趋于最优 ,反应最终得率达到 90 %以上。

Study on the Integration of T-DNA into Lilium longiflorum

[ Objective] The aim of this study is to obtain transgenic Lilium longiflorum Thumb. [ Method] A two-step method of explant and the T-DNA integration technique were employed to transform Lilium longiflorum via Agrobacterium mediated method. [ Result] The best infection effect appeared under the OD600 value of Agrobacterium within 0.6 -0.8, the addition of 250 mg/L AS could increase the transformation efficiency. The optimal concentration of G418 for screening is 50 mg/L. Some putative transgenic plants of Lilium longiflorum with resistance to G418 showed positive in PCR, preliminarily proving that T-DNA gene had integrated into the genome of lily. [ Conclusion] The study may lay a foundation for breeding excellent lily varieties through TDNA integration technique.

新产品集锦(八十二)

◆麝香（Musk）芬美意公司推出的“海佛麝香（Helvetolide）”（等同于：2-[1-（3,3．二甲基一环己基）乙氧基】-27甲基丙酸丙酯；CAS#141773-73．1），是一个日化香原料。具有带梨样果香的现代麝香香调，香气介于黄葵内酯和麝香T之间，其顶香为麝香香气。这个无色液体特别适合用于液体（如醇溶液、香波和沐浴露），以及乳液中。