Blue V dye

Blue V dye

a blue dye used to color reject wheat which is unsuitable for human food consumption. If fed to chickens it causes green gizzard syndrome—the color changes at the low pH.
References in periodicals archive ?
Patent Blue V Dye (PBVD) has been used as a method for lymphatic mapping for a variety of serious malignancies, most notably melanoma and breast cancer.
Our concern remains that patent blue V dye (PBVD) is being used without appropriate safeguards.