Root Extract of a Micropropagated Prunus africana Medicinal Plant Induced Apoptosis in Human Prostate Cancer Cells (PC-3) via Caspase-3 Activation

Figure 4

Multivariate statistical analysis of different samples obtained from in vitro regenerated and wild Prunus africana plants. (a) TANGO FT-NIR spectroscopy analysis results (wave number frequency range = 12,000–4,000 cm⁻¹). (b). FT-NIR chemical characterization based on Ward’s algorithm clustering dendrogram (data preprocessing-first derivative + vector normalization; standard (Euclidean distance); frequency range = 12,000–4,000 cm⁻¹). PIC, P. africana callus sample; PIR, root sample obtained from in vitro regenerated P. africana plant; PIL, leaf sample obtained from in vitro regenerated P. africana plant; PWS, stem sample obtained from mature wild P. africana plant; PIS, stem sample obtained from in vitro regenerated P. africana plant.