Delphinidin is an anthocyanins (flavonals), in the group of Flavonoids (polyphenols), found abundantly in bilberry, blueberry, eggplant, etc. Health Benefits 1. Colon cancer In the testing whether anthocyanidins exerted cytotoxicity in primary (Caco-2) and metastatic (LoVo and LoVo/ADR) colorectal cancer cell lines, found that Both cyanidin and delphinidin, though neither pelargonidin nor malvidin, were cytotoxic …