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1)  precursor of flavor
香精前体物
2)  latent aromatic substance
香气前体物
1.
The degradative product of latent aromatic substance in six varieties of burley tobacco were determined with simultaneous distillation and extraction,headspace separate and GC/MS.
采用同时蒸馏萃取、顶空分离前处理方法及气相色谱—质谱联用分析鉴定技术,对TN90,KY907,KY908,K26,TN86,KY8959等6个白肋烟品种的香气前体物降解产物进行了研究。
3)  Aroma precursors
香味前体物
1.
In this thesis, four experiments were carried out to study the effects of strain, age, and body part on the concentrations of taste compounds and aroma precursors, and research the quantitative changes of those flavor-relating compounds during cooking, then investigate the components of flavor volatiles released from roasted and cooked meat samples.
本论文通过四个试验,研究了品种、日龄及屠体部位对鸡肉滋味物和香味前体物含量的影响,以及这些风味相关物在蒸煮过程中的含量变化,比较了优质肉鸡和速生型肉鸡在烘烤和蒸煮条件下释放的挥发性风味物组成和含量差异,并通过模拟体系探讨了各风味前体物对鸡肉香味形成的相对作用,旨在确定鸡肉主要风味前体物以及品种风味间差异形成的原因,为通过营养途径调控鸡肉品质提供基础资料。
4)  glycosidic flavor precursors
糖苷类香味前体物质
1.
Separation and identification of 5 glycosidic flavor precursors in tobacco by ultra performance liquid chromatography electrospray ionization tandem mass spectrometry
超高效液相色谱-电喷雾串联质谱法分离鉴定烟草中5种糖苷类香味前体物质
5)  flavor precursor
香料前体
1.
To develop thermally by stable flavor,Z-3-hexenylβ-D-Glucopyranoside(LGLY),a kind of glycosidic flavor precursor was prepared by the modified Koenigs-Knorr method.
为开发热稳定型香原料,采用改进的Koenigs-knorr法立体选择性地合成了顺-3-己烯基-β-D-吡喃葡萄糖苷即叶醇糖苷(LGLY)——一种糖苷类香料前体;以反相液相色谱法(RP-HPLC)检测并确定最优反应条件。
2.
Recent development have involved incorporating low volatility and odorless organic compounds,called flavor precursor, which under smoking conditions was pyrolyzed into one or more fragments that function to improve the taste and character of tobacco smoke.
烟用香料前体是指一类本身不易挥发或没什么香气,但加入卷烟后经燃烧裂解能释放出香气香味的化合物。
6)  Aroma precursor
香气前体
1.
As the important aroma precursors,fatty acids and glycosides have an important influence on aroma of tea.
茶叶中主要存在以苯甲醇、苯乙醇、芳樟醇及其氧化物(Ⅰ,Ⅱ,Ⅲ)、水杨酸甲酯、香叶醇等为配基的糖苷类香气前体,组成特点以萜烯醇类为主,且不同茶树品种其糖苷类香气前体配体含量存在较大的差异。
补充资料:酶前体
分子式:
CAS号:

性质:又称酶前体。酶的无活性的前体。通常必须在其他酶或酸的作用下,才能墨迹为具有活性的酶。如胰蛋白酶原经肠激酶激活,水解掉N端一个六肽,才转变成胰蛋白酶,用于促进胰脏功能。凝血酶原在促凝血球蛋白的作用下,转变成凝血酶,用作止血药物。

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