Table 1.

Fluorescence emission peak wavelengths of bacterial solutions under excitation at 266 nm.

Bacteria	Fluorescence Peak Wavelength /nm	Key Contributor
E. coli	341.16	Tryptophan
K. pneumoniae	346.32	Tryptophan
	300	Tyrosine
S. aureus	344.73	Tryptophan
	300	Tyrosine
All bacteria	515.9	Flavins