Enhancing the Anti-Aging Potential of Green Tea Extracts Through Liquid-State Fermentation with Aspergillus niger RAF106

Microbial fermentation diversely modulates the bioactivity of green tea extracts (GTE), but its effects on anti-aging potential remain under-explored. This study investigated the effects of liquid-state fermentation by Aspergillus niger RAF106 on the anti-aging properties of GTE from Biluochun and identified its longevity-promoting metabolites. The unfermented GTE used herein showed no or limited effects, but the four-day fermented tea extracts (GTE-A4) significantly extended the mean lifespan...