Saturday, June 8, 2013

Mold in ultraviolet light

Mold has different colors depending on the wavelength of light. This is an example of mold, crown on old bread. They are two types or species of mold (I think it is one species building a cycle with some fruiting bodies). One has a grey to white color with a fibroid structure that is forming a cycle. The other type is yellow with a nodular structure. Under long wave ultraviolet light the yellow type shows a red luminescence and in short wave ultraviolet light a light greenish color. 


In visible light

In short wave ultraviolet light (UV-B)

In long wave ultraviolet light (UV-A)

1 comment:

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