Determination of fatty acids and volatile compounds in fruits of rosehip (Rosa L.) species by HS-SPME/GC-MS and Im-SPME/GC-MS techniques was written by Murathan, Zehra Tugba;Zarifikhosroshahi, Mozhgan;Kafkas, Nesibe Ebru. And the article was included in Turkish Journal of Agriculture and Forestry in 2016.COA of Formula: C11H12O4 This article mentions the following:
In this study, we aimed to compare fatty acid and volatile compound compositions of four rosehip species, namely Rosa pimpinellifolia, R. villosa, R. canina, and R. dumalis, by gas chromatog. with flame ionization detector (GC/FID) and headspace and immersion solid-phase microextraction gas chromatog.-mass spectrometry (HS-SPME/GC-MS and Im-SPME/GC-MS) techniques. The total lipid contents in fruits of the rosehip species varied from 5.83% (R. villosa) to 7.84% (R. dumalis). A total of 21 fatty acids were detected and quantified. In all species, except R. canina, polyunsaturated fatty acids (PUFAs) predominated over saturated fatty acids (SFAs) and monounsaturated fatty acids (MUFAs). Palmitic acid is the major SFA in R. villosa (5.50%), R. canina (8.27%), and R. dumalis (7.46%). Oleic acid is the most abundant MUFA, and linoleic and a-linolenic acids are the most abundant PUFAs. Sixtytwo volatile compounds were detected by the HS-SPME/GC-MS technique, and 54 volatile compounds were determined by the Im- SPME/GC-MS technique. Fifty-three volatile components of rosehips have been detected for the first time in this study. While 19 acids, 9 aldehydes, 6 ketones, 18 alcs., 5 esters, 2 terpenes, and 2 phenols were identified by HS-SPME/GC-MS, 20 acids, 5 aldehydes, 8 ketones, 13 alcs., 5 esters, 1 terpene, and 2 phenols were identified by Im-SPME/GC-MS. The HS-SPME/GC-MS technique allowed identification of a larger number of volatile compounds and thus is more efficient than the Im-SPME/GC-MS technique. In the experiment, the researchers used many compounds, for example, 3-(2,4-Dimethoxyphenyl)acrylic acid (cas: 6972-61-8COA of Formula: C11H12O4).
3-(2,4-Dimethoxyphenyl)acrylic acid (cas: 6972-61-8) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.COA of Formula: C11H12O4
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem