Abstract
The roots of Heteropteris aphrodisiaca, called no-de-cachorro (dog-knot) for their morphological similarity to the canine penis, are used in popular medicine as an aphrodisiac or stimulant, and to treat dysentery. The objective of the present study was to characterize these roots morphoanatomically and physico-chemically. For the analyses, histological slides were prepared, and aqueous, hydro-ethanol, and ketone extracts were analyzed, from root samples collected in the state of Mato Grosso, in different seasons of the year. The roots are tuberous, cylindrical, and covered with a striated suber. The cortex, composed of parenchymatous tissue, has no sclerified elements, but shows abundant druses and prismatic crystals of calcium oxalate, as well as idioblasts containing polyphenols. In the secondary xylem, gelatinous fibers are abundant, typical for the roots of species of the Brazilian cerrado (savanna). The physical and chemical analyses revealed greater losses through desiccation in the samples collected in spring and summer. Water was the best extraction liquid. Total ash content of the samples ranged from 3.4% in summer to 5.3% in autumn. Total phenol content was higher in spring (10.2%), suggesting this season as the most appropriate to harvest the plant drug. Chromatographic analyses through TLC and HPLC were employed using the flavonoids neoastilbin, astilbin, and isoastilbin as markers. The Rf values were 0.60, 0.68 and 0.74, and the retention time were 16.44, 16.91 and 18.08 min, respectively.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.