Fig. 11

PCA results constructed using spectra of ARSE 5038 treated with Quercetin, Amoxicillin. Con = control (drugs free), Amx (8) = 8 μg/mL Amoxicillin, Que (128) = 128 μg/mL Quercetin, Amx (3) + Que (48) = 3 μg/mL Amoxicillin plus 48 μg/mL Quercetin. PCA analysis (Ward’s algorithm method) was constructed by using the second derivative, vector normalized spectra, over the spectral ranges from 3000-2800 cm⁻¹ and 1750-900 cm⁻¹