Novel methyl-branched alkenones with up to five double bonds in saline lakes

• Published in: Organic Geochemistry
• Main Authors: Liao, Sian, Wang, Karen J., Xue, Yazhen, Huo, Jingfeng, Santos, Ewerton, Wang, Jianbo, Schubert, Carsten J., Huang, Yongsong
• Format: Article in Journal/Newspaper
• Language: English
• Published: Elsevier 2021
• Subjects: α-methyl-branched alkenones; Lake Van; isochrysidales; mass spectrometry; double bond position; Fryxell; Lake Fryxell; Antarc*; Antarctica
• Online Access: https://doi.org/10.1016/j.orggeochem.2021.104243

Long-chain alkenones, a class of highly specific and widely used lipid biomarkers found in ocean and lake sediments, have been so far found as straight-chain alkyl ketones with 2 to 4 double bonds. Jaraula et al. (2010) reported assignments of a series of tri- to penta-unsaturated alkenones as strai...