کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1248142 1495931 2012 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Dereplication of phytochemicals in plants by LC-ESI-MS and ESI-MSn
موضوعات مرتبط
مهندسی و علوم پایه شیمی شیمی آنالیزی یا شیمی تجزیه
پیش نمایش صفحه اول مقاله
Dereplication of phytochemicals in plants by LC-ESI-MS and ESI-MSn
چکیده انگلیسی

This review discusses how crude extracts of selected plants are subjected to column chromatography and the resulting fractions tested for their antibacterial activity towards organisms (e.g., methicillin-resistant-Staphylococcus aureus). We discuss the bioactive column-chromatography fractions being further separated by preparative thin-layer chromatography and the resulting bands being investigated by high-performance liquid chromatography-electrospray ionization-ion trap mass spectrometry (LC-ESI-MS) and ESI-MSn.We then show how the resulting retention times, molecular masses, their fragmentation patterns, the Chemnet database and an in-house quinoline database are used in the dereplication process by structural elucidation of some of the compounds when compared with known structures of natural origin. Some molecular masses and the corresponding fragmentations do not correlate with any known compounds, thus revealing potentially novel natural products that could be investigated on a larger scale and could ultimately find application as new drugs against MRSA and other multi-drug-resistant microorganisms.


► LC-ESI-MS and ESI-MSn can be used in dereplication of natural products.
► The use of ESI-MS techniques in dereplication can assist in drug discovery.
► ESI-MS techniques can be applied to TLC bands following separation processes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: TrAC Trends in Analytical Chemistry - Volume 33, March 2012, Pages 46–54
نویسندگان
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