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Analyzing Longitudinal Microbial Metabolomics Data
DOI:10.1021/pr900126e.png)
摘要
En 中文
A longitudinal experimental design in combination with metabolomics and multiway data analysis is a powerful approach in the identification of metabolites whose correlation with bioproduct formation shows a shift in time. In this paper, a strategy is presented for the analysis of longitudinal microbial metabolomics data, which was performed in order to identify metabolites that are likely inducers of phenylalanine production by Escherichia coli. The variation in phenylalanine production as a function of differences in metabolism induced by the different environmental conditions in time was described by a validated multiway statistical model. Notably, most of the metabolites showing the strongest relations with phenylalanine production seemed to hardly change in time. Apparently, potential bottlenecks in phenylalanine seem to hardly change in the course of a batch fermentation. The approach described in this study is not limited to longitudinal microbial studies but can also be applied to other (biological) studies in which similar longitudinal data need to be analyzed.
Keyword:
megavariate data
metabolomics
microbiology
dynamic data
longitudinal data
multiway analysis
nPLS
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3.6
论文数:
9.4K
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2.3W
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引用论文
Simultaneous quantitative analysis of metabolites using ion-pair liquid chromatography - Electrospray ionization mass spectrometry
ANALYTICAL CHEMISTRY
IF6.7
Jack-knife technique for outlier detection and estimation of standard errors in PARAFAC models用于PARAFAC模型中异常值检测和标准误差估计的Jack-knife技术

