Isolation, characterization and HPLC quantification of compounds from Aquilegia fragrans Benth: Their in vitro antibacterial activities against bovine mastitis pathogens

Autor: Aiyatullah Shah, Saleem Mushtaq, Md. Niamat Ali, Zeeshan Hamid Shah, Aabid Manzoor Shah, Parvaiz H. Qazi, Mushtaq A. Aga, Faheem Rasool, Hafiz-Ullah Dar, Sajad Ahmad Lone, Aehtesham Hussain, Shabir H. Lone
Rok vydání: 2016
Předmět:
Zdroj: Journal of Ethnopharmacology. 178:9-12
ISSN: 0378-8741
Popis: Ethno-pharmacological relevance The underground parts of Aquilegia fragrans are traditionally used for the treatment of wounds and various inflammatory diseases like bovine mastitis. However, there are no reports on the phytochemical characterization and antibacterial studies of A . fragrans. Aim of the study To isolate compounds from the methanol extract of the underground parts of A . fragrans and determine their antibacterial activity against the pathogens of bovine mastitis. The study was undertaken in order to scientifically validate the traditional use of A . fragrans . Materials and methods Five compounds were isolated from the methanol extract of the underground parts of A . fragrans using silica gel column chromatography. Structural elucidation of the isolated compounds was done using spectral data analysis and comparison with literature. High performance liquid chromatography (HPLC) was used for the qualitative and quantitative determination of isolated compounds in the crude methanol extract. The methanol extract and isolated compounds were evaluated for antibacterial activities against mastitis pathogens using broth micro-dilution technique. Results The five isolated compounds were identified as (1) 2, 4-dihydroxyphenylacetic acid methyl ester (2) β-sitosterol (3) Aquilegiolide (4) Glochidionolactone-A and (5) Magnoflorine. A quick and sensitive HPLC method was developed for the first time for qualitative and quantitative determination of four isolated marker compounds from A . fragrans. The crude methanol extract and compound 5 exhibited weak antibacterial activities that varied between the bacterial species (MIC=500–3000 µg/ml). Conclusions The above results show that the crude methanol extract and isolated compounds from A . fragrans exhibit weak antibacterial activities. Further phytochemical and pharmacological studies are required for proper scientific validation of the folk use of this plant species in the treatment of various inflammatory diseases like bovine mastitis.
Databáze: OpenAIRE