Determining the double-bond positions of monounsaturated compounds in the alcohol fraction in seep carbonate

Xu, Lanfang; Guan, Huashi; Liu, Lei; Mao, Shipeng; Feng, J.; Zheng, Shuai; Liu, Lihua

doi:10.1016/j.chroma.2022.463009

Cited by 4 publications

(1 citation statement)

References 65 publications

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“…The adduct formation upon treatment of alkenes is far from straightforward, particularly for complex extracts and for compounds containing more than one double bond 179 or other functional groups, such as alcohols or carbonyls. 180 Consequently, it would be advisable to provide more detailed experimental data when these experiments are carried out, such as clearly stating whether synthetic compounds have been derivatised and co-injected, 181 and whether other isomers were ruled out. Including mass spectra and retention indices of adducts on which the identification is based would also provide the reader greater confidence in the identifications, as is common practice for identification of natural products by GC-MS.…”

Section: Methodsmentioning

confidence: 99%

The volatile chemistry of orchid pollination

et al. 2023

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Section: Methodsmentioning

confidence: 99%

The volatile chemistry of orchid pollination

et al. 2023

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Biomarker Indicators of Cold Seeps

Guan

Lei

et al. 2023

South China Sea Seeps

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Lipid biomarkers of seep carbonates and sediments retrieved from the Dongsha area, Shenhu, Site F and Haima in the South China Sea (SCS) over the last two decades were studied. Biomarker inventories, microbial consortia, seepage dynamics, and biogeochemical processes of anaerobic oxidation of methane (AOM), aerobic oxidation of methane (AeOM), and oxidation of non-methane hydrocarbons, were reconstructed. Authigenic carbonates contained varying contents of 13C-depleted archaeal and bacterial biomarkers, reflecting their formation as a result of AOM under varying conditions. Except for the typical isoprenoids found in various cold seeps worldwide, 3,7,11,15-tetramethyl hexadecan-1,3-diol and two novel sn2-/sn3-O-hydroxyphytanyl glycerol monoethers with notable 13C-depletion were observed in authigenic carbonates obtained from Haima, which are most likely hydrolysis products of archaea-specific diethers. Furthermore, molecular fossils, compound-specific δ13C values, and mineralogies, were used to trace dominant microbial consortia, seepage activities, and environmental conditions in the cold seep ecosystems of the SCS. In this chapter, the archaeal and bacterial lipid biomarker geochemistry of methane seeps is systematically introduced. AOM, AeOM, oxidation of non-methane hydrocarbons, oil degradation, and the diagenetic fate of glycerol ethers, are further summarized.

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Development and application of a pseudotargeted lipidomics method for alkylglycerol analysis

Wang,

Zhao,

et al. 2024

Food Chemistry

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Determining the double-bond positions of monounsaturated compounds in the alcohol fraction in seep carbonate

Cited by 4 publications

References 65 publications

The volatile chemistry of orchid pollination

The volatile chemistry of orchid pollination

Biomarker Indicators of Cold Seeps

Development and application of a pseudotargeted lipidomics method for alkylglycerol analysis

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