The results showed that the volatile constituents of Rhododendron athopogoides Maxim, mainly includes aliphatic acid and ester, aldehyde, ketone, aromatic and its heterocyclic compounds.
结果表明:烈香杜鹃精油化学成分以高级脂肪酸酯、酮、芳香族化合物及芳香杂环化合物为主。
The IR and NMR spectra of the polymers indicated that the polymer structure contained ester and ketone units in the backbone, and a cyclic acetals as side chain.
通过对该合聚物的IR和NMR谱图分析,得知该聚合物含有酯基和酮基的结构单元,以及环缩醛的侧链。
It is soluble in aromatic, aliphatic, ester, and ketone solvents.
本树脂产品溶解于芳香类、脂肪类、酯类及酮类溶剂。
The influence on the VFC of the juice by UHT is: the alcohols reducing, the ketone producing and increasing, the ester aroma increasing in large amount.
UHT瞬时高温灭菌处理对绿茶鲜汁的香气组分影响主要表现在醇类成分减少、生成新的酮类单体及酮类香气总量增长以及酷类香气的大量增加。
For the fermented apple pomace, ester took up more than 50% in the total volatile products, with less than 15% of alkyl -, aldehyde and ketone.
发酵后苹果渣中挥发性物质中50%以上为酯类物质,醛、酮、酸类相对含量不到15%。
For the fermented apple pomace, ester took up more than 50% in the total volatile products, with less than 15% of alkyl -, aldehyde and ketone.
发酵后苹果渣中挥发性物质中50%以上为酯类物质,醛、酮、酸类相对含量不到15%。
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