Phycoerythrin is a pigment commonly found in certain types of algae, such as red algae and cyanobacteria. It is known to absorb light in the visible spectrum, specifically in the range of longer wavelengths.
Phycoerythrin has absorption peaks in the orange-red region of the spectrum, around 495-575 nanometers (nm) and 625-660 nm. These wavelengths correspond to the absorption of light by the pigment and are responsible for the characteristic red color observed in organisms containing phycoerythrin.
It is worth noting that the exact absorption characteristics of phycoerythrin can vary slightly depending on the specific species and the surrounding environment. However, the general range of absorption wavelengths mentioned above is common for phycoerythrin pigments.