Ingestion of an Inulin‐Enriched Pork Sausage Product Positively Modulates the Gut Microbiome and Metabolome of Healthy Rats

Molecular Nutrition & Food Research, Wiley, ISSN 1613-4125

Volume 62, 19, 2018

DOI:10.1002/mnfr.201800608, Dimensions: pub.1105557769, PMID: 30004630,



  1. (1) Aarhus University, grid.7048.b, AU
  2. (2) University of Copenhagen, grid.5254.6, KU






SCOPE: Processed meat intake is associated with a potential increased colorectal cancer (CRC) risk. In contrast, dietary fiber consumption has been found to lower CRC risk, possibly via mechanisms involving the gut microbiota (GM) and its metabolites. This study investigates the effect of inulin enrichment of a common pork sausage product on GM composition and activity in healthy rats. METHODS AND RESULTS: Thirty Sprague-Dawley rats are fed a diet based on either an inulin-enriched sausage (n = 12), a corresponding control sausage without enrichment (n = 12), or a standard chow diet (n = 6) during a 4 week intervention. NMR-based metabolomics analyses are conducted on fecal and plasma samples, and GM composition is determined using 16S rRNA gene amplicon sequencing. Pronounced effects of diets on GM composition and activity are found. Rats fed the inulin-enriched sausages have increased levels of short chain fatty acids (SCFAs) in the fecal and plasma metabolome and increased fecal levels of Bifidobacterium spp. as compared to rats fed sausages without enrichment. CONCLUSION: Inulin enrichment of a meat product resembles general effects seen upon dietary fiber consumption and corroborates that healthier processed meats can be developed through strategic inclusion of dietary fiber ingredients.

Research Categories

Main Subject Area

Fields of Research

Links & Metrics

NORA University Profiles

Aarhus University

University of Copenhagen

Danish Open Access Indicator

2018: Unused

Research area: Science & Technology

Danish Bibliometrics Indicator

2018: Level 2

Research area: Science & Technology

Dimensions Citation Indicators

Times Cited: 11

Field Citation Ratio (FCR): 5.97

Relative Citation ratio (RCR): 0.9