Petra Louis

 +44 (0)1224 438735

  p.louis@abdn.ac.uk

The Rowett Institute

University of Aberdeen

Foresterhill

Aberdeen

AB25 2ZD

Dr Petra louis

Biography

I am a microbiologist and molecular biologist at the Rowett Institute, University of Aberdeen. My research focusses on the metabolism of dietary food compounds by the microbes present in large intestine (the gut microbiota) and how this influences human health. Within the strategic programme, I am investigating how different microbes work together to ferment dietary non-digestible carbohydrates (fibre) to health-promoting products, which will help to provide scientifically sound dietary advice as well as aid the development of novel food ingredients. More information about my research can be found here 

Research Papers (DOI)

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  Specific substrate-driven changes in human faecal microbiota composition contrast with functional redundancy in short-chain fatty acid production
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  Mutual interaction of phenolic compounds and microbiota:Metabolism of complex phenolic apigenin C- and kaempferol O-derivatives by human fecal samples
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  microPop: modelling microbial populations and communities in R.
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  Formation of propionate and butyrate by the human colonic microbiota.
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  The impact of nutrition on intestinal bacterial communities.
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  • B-glucan is a major growth substrate for human gut bacteria related to Coprococcus eutactus
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  Pivotal roles for pH, lactate and lactate-utilizing bacteria in the stability of a human colonic microbial ecosystem
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  Vitamin biosynthesis by human gut butyrate-producing bacteria and cross-feeding in synthetic microbial communities
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  Maturation of the gut microbiome during the first year of life contributes to the protective farm effect on childhood asthma
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  Dietary fibre complexity and its influence on functional groups of the human gut microbiota
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  Distribution, organization and expression of genes concerned with anaerobic lactate utilization in human intestinal bacteria
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  Higher total faecal short-chain fatty acid concentrations correlate with increasing proportions of butyrate and decreasing proportions of branched-cha
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  Microbial lactate utilisation and the stability of the gut microbiome
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  Immune Responsiveness to LPS Determines Risk of Childhood Wheeze and Asthma in 17q21 Risk Allele Carriers

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