This review found that chondroitin sulfate is traditionally extracted from animal sources (like cow cartilage), but bacteria can produce it through fermentation instead—a potentially more scalable alternative. However, unlike hyaluronic acid (which is now commonly made this way), chondroitin sulfate production at commercial scale hasn't been successfully developed yet, partly because demand is much higher and the science is lagging.
This is a literature review, not an experiment. The authors surveyed existing research on chondroitin sulfate production methods and applications across medical, pharmaceutical, and cosmetic fields.
Funding not disclosed in abstract