Pomegranate peel extract shows prebiotic potential

By Stephen DANIELLS

- Last updated on GMT

Related tags: Gut flora, Obesity

Pomegranate peel extract shows prebiotic potential
Polyphenol-rich extracts from pomegranate peel may selectively enhance the growth of potentially beneficial gut bacteria, suggesting prebiotic activity for the extract, says a new study.

Scientists from the leading prebiotic research lab of Dr Patrice Cani and Dr Nathalie Delzenne at the Universite catholique de Louvain in Belgium report that consumption of a pomegranate peel extract was associated with increases in bifidobacteria in the intestine.

Results published in the British Journal of Nutrition​ also indicate  that the polyphenol-rich extract was associated with reductions in total and LDL cholesterol levels, as well as a reduction in the pro-inflammatory markers in the colon associated with co-consumption with a high-fat diet.

“Although mechanistic studies are needed in order to determine which bioactive constituent(s) or metabolite(s) coming from the gut bacteria were responsible for these effects, our results suggest that pomegranate peel extract can confer positive health impacts associated with gut microbiota modulation and may be a natural alternative in the prevention of obesity and cardiovascular disease,”​ wrote the researchers.

Prebiotics are defined as: "Non-digestible substances that provide a beneficial physiological effect on the host by selectively stimulating the favorable growth or activity of a limited number of indigenous bacteria".

Study details

The Louvain-based researchers used lab mice and fed them a high diet with or without a pomegranate peel extract at a daily dose of 6 milligrams for four weeks.

Results showed a s significant increase in bifidobacteria levels, but no changes for body weight gain or blood levels of inflammatory markers.

Improvements in cholesterol levels were accompanied by a counter-action of “high fat-induced expression of inflammatory markers both in the colon and the visceral adipose tissue”​, they said.

“Together, these findings support that pomegranate constitutes a promising food in the control of atherogenic and inflammatory disorders associated with diet-induced obesity,” ​wrote the researchers.

“Knowing the poor bioavailability of pomegranate polyphenols, its bifidogenic effect observed after pomegranate peel extract consumption suggests the involvement of the gut microbiota in the management of host metabolism by polyphenolic compounds present in pomegranate.”

Source: British Journal of Nutrition
Published online ahead of print, doi: 10.1017/S0007114512002206
“Polyphenol-rich extract of pomegranate peel alleviates tissue inflammation and hypercholesterolaemia in high-fat diet-induced obese mice: potential implication of the gut microbiota”
Authors: A.M. Neyrinck, V.F. Van Hée, L.B. Bindels, F. De Backer, P.D. Cani, N.M. Delzenne 

Related news

Show more

Related products

show more

HRB probiotics: The gift of life for infant health

HRB probiotics: The gift of life for infant health

Morinaga Milk Industry Co., Ltd. | 29-Jun-2020 | Technical / White Paper

Bifidobacteria are among the first colonizers of human gut, and certain species are recognised as Human-Residential Bifidobacteria (HRB) - the natural...

Aquamin & Microbiome Enhance Immunity Naturally

Aquamin & Microbiome Enhance Immunity Naturally

Marigot Ltd | 24-Jun-2020 | Technical / White Paper

Aquamin is a unique, natural plant multi-mineral offering for gut health with 39 peer reviewed publications to support its unique health properties, enhancing...

Robuvit® Boosts Recovery Following Surgery

Robuvit® Boosts Recovery Following Surgery

Horphag Research | 22-Jun-2020 | Clinical Study

New research found Robuvit® French oak extract improves general health, mood and social functioning of post-surgery patients. Robuvit®’s antioxidative...

Related suppliers

Follow us

Products

View more

Webinars