I didn't find in Dr. Duke's database, any information about the uses of Berberis fortunei
Here is some basic information about Berberis fortunei.
Berberis fortunei basic info
Scientific Name: Berberis fortunei Lindl..
For common names of Berberis fortunei in different languages - See link
Mahonia fortunei, (common names: Chinese mahonia, Fortune's mahonia, and holly grape) is a species of shrubs that is endemic to China. It is grown as an ornamental in many lands. - for more info about Berberis fortunei See link
Berberis fortunei in other websites
Berberis fortunei common names, economics importance, distributional range and more in the USDA GRIN website - See link
Search PubMed (US National Library of Medicine National Institutes of Health) for academic researches with the search term Berberis fortunei - See link
See if there is something in Youtube on the term Berberis fortunei - See link