Unveiling the formation mechanism of Moringa oleifera leaf flavonoids aglycones during Monascus anka fermentation by using integrated widely targeted metabolomics and proteomics analysis.

This laboratory study investigated how fermentation with a specific fungus called Monascus anka could enhance the beneficial compounds in moringa leaves. The researchers were particularly interested in understanding how this fermentation process creates more bioactive flavonoids - plant compounds known for their antioxidant properties. They used advanced analytical techniques called metabolomics and proteomics to track both the chemical changes in the leaves and the enzymes produced by the fungus during fermentation. The key finding was that fermentation dramatically increased the levels of free flavonoids, particularly quercetin and kaempferol, which are more easily absorbed by the body than their bound forms. The study revealed that specific enzymes produced by the fungus break down the cell walls of moringa leaves and release these valuable compounds from their sugar-bound state. Total flavonoid content increased by over 200%, while antioxidant activity measured by standard laboratory tests improved significantly. This research provides important insights into how fermentation could be used as a processing method to make moringa supplements more potent and bioavailable, offering a scientific basis for developing enhanced moringa products through controlled fermentation processes.