Extraction and Determination of Pyrethrins from Pyrethrum Cultivated in Iran

• Main Authors: F Nazari (Author), M Kambarani (Author)
• Format: Book
• Published: Institue of Medicinal Plants, ACECR, 2008-02-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.
• Notes: 2717-204X; 2717-2058
• Keywords: pyrethrins; pyrethrum; hplc; spectrophotometric; Therapeutics. Pharmacology; RM1-950; Toxicology. Poisons; RA1190-1270
• Source: Journal of Medicinal Plants, Vol 7, Iss 25, Pp 79-84 (2008)

Background: Pyrethrum Chrysanthemum cinerariaefolium (Trevir.) Vis. is a member of the Asteraceae family. It is perennial plant commercially grown for extraction of natural pyrethrins used to make insecticides. It has low toxicity for humans and other warm blooded animals but its effectiveness against a wide range of insects. Objective: The aim of this study has been extraction and determination of pyrethrins from pyrethrum cultivated in the experimental fields of ACECR at Karaj, Iran. Method: The plant materials were dried, powdered and extracted with different organic solvents. Then extract analyzed by Diode-Array UV-VIS spectrophotometer and reversed-phase HPLC system. Results: (1) Both of methods can be used for determining the total of pyrethrins and that both can be successfully used in laboratories that are not so well equipped. (2) We found that pyrethrins content was 1.6% of dried weight by both methods. It is good result because concentrations ranging from 1 to 2% of pyrethrins have been adopted by the foremost manufacturers of pyrethrum insecticides. Conclusion: These results indicated that cultivation of pyrethrum in Iran should be have high economical.