Electron-Transfer Oxidation Properties of Unsaturated Fatty Acids and Mechanistic Insight into Lipoxygenases

2006 ◽  
Vol 110 (5) ◽  
pp. 1718-1725 ◽  
Author(s):  
Hironori Kitaguchi ◽  
Kei Ohkubo ◽  
Seiji Ogo ◽  
Shunichi Fukuzumi
Keyword(s):  
Fatty Acids ◽  
Electron Transfer ◽  
Unsaturated Fatty Acids ◽  
Mechanistic Insight ◽  
Oxidation Properties ◽  
Insight Into

scholarly journals Insight into the Secondary Metabolites of Geum urbanum L. and Geum rivale L. Seeds (Rosaceae)

Plants ◽  
2021 ◽  
Vol 10 (6) ◽  
pp. 1219
Author(s):  
Marek Bunse ◽  
Peter Lorenz ◽  
Florian C. Stintzing ◽  
Dietmar R. Kammerer
Keyword(s):  
Fatty Acids ◽  
Phenolic Compounds ◽  
Unsaturated Fatty Acids ◽  
Asiatic Acid ◽  
Cosmetic Products ◽  
Nutritional Properties ◽  
First Time ◽  
Derivatives Of ◽  
Geum Urbanum ◽  
Insight Into

The present study aimed at the identification and quantitation of phenolic compounds, fatty acids, and further characteristic substances in the seeds of Geum urbanum L. and Geum rivale L. For this purpose, individual components of extracts recovered with MeOH, CH2Cl2, and by cold-pressing, respectively, were characterized by HPLC-DAD/ESI-MSn and GC/MS and compared with reference compounds. For both Geum species, phenolic compounds, such as flavonoids and gallic acid derivatives, and triterpenes, such as saponins and their aglycones, were detected. Surprisingly, both Geum species revealed the presence of derivatives of the triterpenoid aglycons asiatic acid and madecassic acid, which were characterized for the first time in the genus Geum. Furthermore, the fatty acids of both species were characterized by GC–MS after derivatization. Both species showed a promising fatty-acid profile in terms of nutritional properties because of high proportions of unsaturated fatty acids. Linoleic acid and linolenic acid were most abundant, among other compounds such as palmitic acid and stearic acid. In summary, the present study demonstrates the seeds of G. urbanum and G. rivale to be a valuable source of unsaturated fatty acids and bioactive phenolics, which might be exploited for nutritional and cosmetic products and for phytotherapeutic purposes.

scholarly journals Mechanistic insight into proton-coupled mixed valency

2016 ◽  
Vol 52 (1) ◽  
pp. 100-103 ◽  
Author(s):  
Luke A. Wilkinson ◽  
Kevin B. Vincent ◽  
Anthony J. H. M. Meijer ◽  
Nathan J. Patmore
Keyword(s):  
Electron Transfer ◽  
Valence State ◽  
Mixed Valence ◽  
Bridging Ligands ◽  
Mixed Valency ◽  
Mixed Valence State ◽  
Mechanistic Insight ◽  
Insight Into

Stabilisation of the mixed-valence state in [Mo2(TiPB)3(HDOP)]2+ (HTiPB = 2,4,6-triisopropylbenzoic acid, H2DOP = 3,6-dihydroxypyridazine) by electron transfer (ET) is related to the proton coordinate of the bridging ligands.

scholarly journals Comprehensive Analysis of the Components of Walnut Kernel (Juglans regia L.) in China

2021 ◽  
Vol 2021 ◽  
pp. 1-11
Author(s):  
Shuxiang Geng ◽  
Delu Ning ◽  
Ting Ma ◽  
Haiyun Chen ◽  
Yinzhi Zhang ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Vitamin E ◽  
High Performance ◽  
Unsaturated Fatty Acids ◽  
Juglans Regia ◽  
Fatty Acid Content ◽  
Calcium Content ◽  
Genetic Traits ◽  
Main Components ◽  
Insight Into

The contents of main components in 45 walnut kernels from 5 walnut-planting provinces in China (Yunnan, Shaanxi, Shandong, Hebei, and Sichuan) were determined using colorimetry, high-performance liquid chromatography, and gas chromatography, including flavonoids, vitamin E, trace elements, fatty acids, and amino acids. The levels of flavonoids and vitamin E were higher in walnuts from Yunnan than in walnuts from the other four provinces. The levels of zinc and iron were relatively higher in walnuts from Shandong, and the calcium content in walnuts from Yunnan was much lower. No obvious difference was found in crude fat concentration for nuts from the five provinces, but differences were observed in the crude protein content. Oleic acid was the predominant unsaturated fatty acids in all walnut species; the monounsaturated fatty acid content was the highest in walnuts from Yunnan. The data obtained here provided insight into differences in walnuts resulting from different growing environments and germplasm genetic traits.

scholarly journals Insight into the shift and rearrangement of carbocation in Friedel-Crafts alkylation of unsaturated fatty acids revealed by GC–MS

2017 ◽  
Vol 415 ◽  
pp. 85-91 ◽  
Author(s):  
Peng-Cheng Bian ◽  
Wen-Jie Xu ◽  
Hong-Ze Gang ◽  
Jin-Feng Liu ◽  
Bo-Zhong Mu ◽  
...  
Keyword(s):  
Fatty Acids ◽  
Unsaturated Fatty Acids ◽  
Insight Into
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