From waste to the gut: Can blackcurrant press cake be a new functional ingredient? Insights on in vivo microbiota modulation, oxidative stress, and inflammation

Food Res Int. 2023 Aug:170:112917. doi: 10.1016/j.foodres.2023.112917. Epub 2023 May 15.

Abstract

Blackcurrant press cake (BPC) is a source of anthocyanins, and this study evaluated the bioactivity and gut microbiota modulation of blackcurrant diets with or without 1,2 dimethylhydrazine (DMH)-induced colon carcinogenesis in rats. In colon cancer-induced rats (CRC), BPC at the highest dosages increased pro-inflammatory parameters and the expression of anti-apoptotic cytokines, accentuating colon cancer initiation by aberrant crypts and morphological changes. Fecal microbiome analysis showed that BPC altered the composition and function of the gut microbiome. This evidence suggests that high doses of BPC act as a pro-oxidant, accentuating the inflammatory environment and CRC progression.

Keywords: Aberrant crypt foci (ACF); Anthocyanins; Blackcurrant; By-product; Colorectal carcinogenesis; Gut microbiota modulation; Inflammation.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Animals
  • Anthocyanins / pharmacology
  • Colonic Neoplasms*
  • Inflammation
  • Microbiota*
  • Oxidative Stress
  • Pharmaceutical Vehicles
  • Rats

Substances

  • Anthocyanins
  • Pharmaceutical Vehicles