I didn't find in Dr. Duke's database, any information about the uses of Coptis deltoidea
Here is some basic information about Coptis deltoidea.
Coptis deltoidea basic info
Scientific Name: Coptis deltoidea C. Y. Cheng & P. K. Hsiao.
Coptis deltoidea in other websites
Coptis deltoidea 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 Coptis deltoidea - See link
See if there is something in Youtube on the term Coptis deltoidea - See link