"Repeating Rifle" schrieb im Newsbeitrag
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This morning, I spent a fair amount of time clearing out excess growth of
tomatoes in my little greenhouse. When I washed my hands, they turned very
yellow. That had happened before but I did not know what the cause was. I
thought that I had contacted nitrates from my nutrient solution and that
it
had somehow caused the yellow color the same way that exposure to nitrate
does. I presumed that the alkaline soap was the proximate cause for
turning
a leuco compound yellow.

This time, after washing away the color, I went back out and handled the
tomato plants some more. Hand washing brought out the yellow color again.

Is this typical of tomatoes? What is the substance involved?


I'll bet on lycopene as well.