二烯酸

赤芍主要挥发成分为水杨醛、正十六碳酸和（Z，Z）-9,12-十八碳二烯酸。

The mail volatile chemical components of RPR are ( Z , Z ) - 9,12-octadecadienoic acid , n-hexadecanoic acid and 2-hydroxy-benzaldehyde .

结论：小茴香超临界CO2萃取产物的主要成分是茴香脑、十八碳一烯酸、十八碳二烯酸和棕榈酸等。

CONCLUSION : The main compositions of supercritical CO 2 fluid extraction product of Foeniculum vulgare Mill . seeds are anethole and fatty acids .

共轭亚油酸（conjugatedlinoleicacid，CLA）是指很多位置和空间异构的共轭的十八碳二烯酸的混合物。

Conjugated linoleic acid ( CLA ) are mixtures of several positional and geometric isomers of conjugated octadecadienoic ( 18:2 ) acid .

共轭亚油酸（conjugatedlinoleicacid，CLA）是一组位置和几何异构体的十八碳共轭二烯酸的统称。其双键位于7,9；

Conjugated linoleic acids ( CLA ) refer to a collection of positional and geometric isomers of octadecadienoic acid with conjugated double bonds .

结论超临界CO2萃取物中，9,12-十八碳二烯酸含量最高，达2852%，其次是n-十六酸；

Conclusion In the CO 2 supercritical extract of SAHT , it is found that the content of 9,12-octadecadienoic acid is the highest , reaching 28.52 % , and the content of n-hexadecanoic acid is the next .

提出迭代作图法，用以计算油脂氢化反应速率常数，进而计算三烯酸（酯）、二烯酸（酯）的选择性比（SR）。

By Sketchy Method Alternately ( SMA ) rate constant of oil and fat hydrogenation reaction was calculated , and furthermore Selectivity Ratio ( SR ) of linoleate and linolenate was calculated respectively in the paper .

共轭亚油酸（CLA）是含有顺式或反式共轭双键的十八碳二烯酸，是必需氨基酸亚油酸（LA）的一组位置和构象异构体的总称。

Conjugated linoleic acid ( CLA ) containing cis-or trans-conjugated double bond is a kind of octadecadienoic acid and is a general term for a set of locations and conformational isomers of the essential amino acids linoleic acid ( LA ) .

两种十八碳二烯酸诱发水稻对稻瘟病的抗性及其防病作用

Effect of Two Octadecadienoic Acids on Rice Resistance to Blast at Seedling Stage

有时，碘值的下降用来测量在自动氧化过程中二烯酸的减少。

A decline in iodine value is sometimes used to measure the reduction of dienoic acids during the course of autoxidation .

其中主要成分为：十六酸（棕榈酸）13.05%，9,12-十八碳二烯酸（亚油酸）35.75%，9-十八碳烯酸（油酸）39.85%。

Of them the major fatty acids were : hexadecanoic acid 13.05 % , Linoleic acid 35.75 and Oleic acid 39.85 % .

金柚外黄皮中挥发性成分以柠烯碳氢化合物为主体成分，其中柠檬烯含量占粗精油的84.07%，金柚内白皮则以十八碳二烯酸、棕榈酸和七聚氧化乙烯为主体成分。

There were volatile compounds , mainly limonene , accounted for 84.07 % in the outer yellow peel , while there were mainly octadecadienoic acid , hexadecanoic acid , and ethylene oxide heptamer in the inner white peel .

梓油除了含常见的亚麻酸、亚油酸、油酸、棕榈酸和硬脂酸之外，还含有不常见的2,4-癸二烯酸和8-羟基-5,6-辛二烯酸；

Palmitic , oleic , stearic and linoleic acids were found in the vegetable tallow ; besides these , linolenic acid as well as two unusual acids , 2,4 - decadienoic acid and 8 - hydroxy-5 , 6-octadienoic acid , were found in the stillingia oil .

酯交换法合成共轭亚油酸三甘酯混合十八碳二、三烯酸提取工艺改进及含量测定

Improving of Extraction Technology and Determination the Content of the Mixture of α - Linolenic Acid and Linoleic Acid