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Abstracts of the conference on recent advances in mass spectrometry at the Chemical biological centre (KBC) Umeå
- 2023
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Proceedings (redaktörskap) (övrigt vetenskapligt/konstnärligt)abstract
- This booklet contains a description, the programme, and the abstracts of the Mass Spectrometry Day at the Chemistry Biology Center (KBC) at Umeå University on 15 March 2023. At this event, leading companies in the field of modern mass spectrometry presented their latest news about analytical applications and technologies. The spectrum of topics covered metabolomics, proteomics and had a special focus on targeted applications. Both mass spectrometry in combination with separation by liquid chromatography and by gas chromatography was included. The Mass Spectrometry Day was collaboration between industry and academia, and it was organized by the Swedish Mass Spectrometry Society, the Swedish Metabolomics Center, and the Mass Spectrometry Network Umeå. The booklet of the Mass Spectrometry Day gives an overview of some recent innovations in applied mass spectrometry. It contains links to related application notes and literature and contact details to the companies that presented their innovations at this conference.
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Batch process strategy for analysing metabolic variation controlling the growth process of hybrid aspen
- 2005
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Proceedings (redaktörskap) (populärvet., debatt m.m.)abstract
- High resolution magic angle spinning proton nuclear magnetic resonance spectroscopy, {1}H HR/MAS NMR, and multivariate data analysis using batch processing, BP, was applied for the analysis of two different genotypes of poplar tree (Populus tremula L. x tremuloides Michx.), containing an antisense construct of PttMYB76 and control (wild type). A gene encoding a MYB transcription factor, with unknown function, PttMYB76, was selected from a cambial EST library of poplar tree (Populus tremula L. x remuloides Michx.) for metabonomic characterisation. The PttMYB76 gene is believed to affect different paths of the phenyl propanoid synthetic pathway. This pathway leads to the formation of S- and G-lignin, flavonoids and sinapate esters. Milled poplar samples collected at the internodes of the tree were analysed using {1}H high resolution magic angle spinning NMR spectroscopy. The application of multivariate batch processing of the NMR results revealed a growth-related gradient in the plant internode direction as well as the discrimination between the trees with down regulated PttMYB76 expression and wild type populations. This paper is focused on the potential of a new analytical multivariate approach for analysing time-related plant metabonomic data. The techniques used could, with the aid of suitable model compounds, be of high relevance to the detection and understanding of the different lignification processes within the two types of poplar tree. Additionally, the findings are highlighting the importance of applying robust and organised multivariate data analysis approaches to facilitate modelling and interpretation of complex biological data sets.
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Dehydroisomerization of α-pinene over metal supported Si-SBA-15 mesoporous molecular sieves
- 2013
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Proceedings (redaktörskap) (refereegranskat)abstract
- The effective dispersion of active metal species on mesoporous Si-SBA-15 is acquired by means of deposition-precipitation method. In order to achieve this, the surface of Si-SBA-15 was first modified with TiO2 via grafting method, followed by deposition-precipitation method (DP) to obtain a fine dispersion of metallic nanoparticles over TiO2 modified Si-SBA-15. The structural features of the synthesized materials were characterized by means of X-ray diffraction (XRD), nitrogen sorption (BET), XPS and HR-TEM. A valuable platform chemical, p-cymene, was produced over the prepared catalyst by dehydroisomerization of α-pinene under vapour-phase conditions. A stable catalyst for one-spot synthesis of renewable p-cymene from α-pinene was developed.
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