摘要
Black pepper （Piper nigrum L.） is an extensively used medicinal plant in Ayurvedic medicine since ancient times. Here we present Fourier transform infrared （FT-IR） and Fourier transform Raman （FT-Raman） spectra of black pepper powder, which reveal the presence of some specific functional groups, attributed to the different vibrational bands present. Through the assignment of the vibrational bands, black pepper is shown to have enough carboxyl dimer character, a feature that could make it effective in the treatment of the deadly disease vitiligo. Mineral composition reported with the help of XRF spectra strengthens this.
