The gut microbiota
profile is determined by diet composition, and
therefore this interaction is crucial for promoting specific bacterial
growth and enhancing the health status. Red radish (Raphanus sativus
L.) contains several
secondary plant metabolites that can exert a protective effect on
human health. Recent studies have shown that radish leaves have a
higher content of major nutrients, minerals, and fiber than roots,
and they have garnered attention as a healthy food or supplement.
Therefore, the consumption of the whole plant should be considered,
as its nutritional value may be of greater interest. The aim of this
work is to evaluate the effects of glucosinolate (GSL)-enriched radish
with elicitors on the intestinal microbiota and metabolic syndrome-related
functionalities by using an in vitro dynamic gastrointestinal
system and several cellular models developed to study the GSL impact
on different health indicators such as blood pressure, cholesterol
metabolism, insulin resistance, adipogenesis, and reactive oxygen
species (ROS). The treatment with red radish had an influence on short-chain
fatty acids (SCFA) production, especially on acetic and propionic
acid and many butyrate-producing bacteria, suggesting that consumption
of the entire red radish plant (leaves and roots) could modify the
human gut microbiota profile toward a healthier one. The evaluation
of the metabolic syndrome-related functionalities showed a significant
decrease in the gene expression of endothelin, interleukin IL-6, and
cholesterol transporter-associated biomarkers (ABCA1 and ABCG5), suggesting
an improvement of three risk factors associated with metabolic syndrome.
The results support the idea that the use of elicitors on red radish
crops and its further consumption (the entire plant) may contribute
to improving the general health status and gut microbiota profile.