A question about burdock root

I love it in sushi but just now I'm realizing that at my local sushi place, theirs is orange and I'm guessing it's pickled. Why add the color to it? I'm so curious about that! Thanks for the help on this question pickle peeps!

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uws80 March 11, 2011
For that matter, one might ask why the Japanese fish cakes, whose slices are typically found in udon soups, are dyed pink?
Sam1148 March 10, 2011
I think they add color to make it look more traditional. I believe the original had some processing that made them turn yellow.
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