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- Title
QUANITITATIVE ANALYSIS OF PYRETHRINS FROM CHRYSANTHEMUM CINERARIIAEFOLIUM AND CHRYSANTHEMUM LEUCANTEUM PETALS.
- Authors
STANCIU, GABRIELA; LUPSOR, SIMONA; SIRBU, RODICA
- Abstract
Pyrethrins content was determined for two chrysanthemum species namely: Chrysanthemum cinerariifolium and Chrysanthemum leucantheum. In order to determine the most efficient solvent for pyrethrins extraction three solvents were used: petroleum ether (I), a mixture of petroleum ether, ethanol and acetone (1:1:1) (II) and methanol (III). Spectrophotometric method used for determination of pyrethrins is based on pyrethrins colour reaction with 2,4-dinitrophenylhydrazine followed by measurements of resulting compound at 377 nm wavelength. Pyrethrin content was determined comparing to a-cypermethrin calibration curve. According to the obtained results for the analysed chrysanthemum extracts the most efficient solvent for pyrethrins extraction was methanol and the highest pyrethrins content was found in Chrysanthemum cinerariifolium petals.
- Subjects
PYRETHRUM (Plant); PYRETHRINS; FLOWER petals; PLANT extracts; SPECTROPHOTOMETRY; QUANTITATIVE chemical analysis
- Publication
Journal of Science & Arts, 2017, Vol 17, Issue 1, p141
- ISSN
1844-9581
- Publication type
Article