Sample preparation for an optimized extraction of localized metabolites in lichens: Application to Pseudevernia furfuracea
作者： Sarah Komaty , Marine Letertre , Huyen Duong Dang , Harald Jungnickel , Peter Laux
DOI: 10.1016/J.TALANTA.2015.12.081
关键词: Sample preparation 、 Extraction (chemistry) 、 Pseudevernia furfuracea 、 Microwave assisted 、 Electronic microscopy 、 Mass spectrometry 、 Chemistry 、 Lichen 、 Chromatography 、 Secondary metabolite
摘要: Lichens are symbiotic organisms known for producing unique secondary metabolites with attractive cosmetic and pharmacological properties. In this paper, we investigated three standard methods of preparation Pseudevernia furfuracea (blender grinding, ball milling, pestle mortar). The materials obtained were characterized by electronic microscopy, nitrogen adsorption compared from the point view extraction. Their microscopic structure is related to extraction efficiency. addition, it shown using thalline reactions mass spectrometry mapping (TOF-SIMS) that these not evenly distributed throughout organism. Particularly, atranorin (a metabolite interest) mainly present in cortex P. furfuracea. Finally, microwave assisted (MAE) evidence an appropriate can increase efficiency a factor five.
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