Parent comment included that exact sentence as a part of their question. I'm not sure why you think quoting the same thing again would provide an answer. To an

Parent comment included that exact sentence as a part of their question. I'm not sure why you think quoting the same thing again would provide an answer. To answer the parent comment: The enzyme discovered is what converts bilirubin into urobilinogen, which degrades into urobilin, so your guess was along the correct lines.