Naslov
Determination of elements content in Pyrethrum plant and flower extract

Autori
Rončević, Sanda ; Pitarević Svedružić, Lovorka ; Vidaček, Natalija ; Sterpin, Nives

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, pp prezentacija, znanstveni

Skup
12th Symposium and Summer School on Bioanalysis

Mjesto i datum
Cluj-Napoca, Rumunjska, 04.07.2012. - 14.07.2012

Vrsta sudjelovanja
Pozvano predavanje

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
plant material ; element content ; pyrethrins ; ICP-AES ; HPLC

Sažetak
The growing interest in chemical composition of plant materials is caused by developments in agriculture, biogeochemical and environmental studies. It has resulted with increased demands in analysis of complicated biological matrices. In this study, the analysis of major, minor and trace element content in pyrethrum plant and flower extract was performed. Pyrethrum (Chrisantemum cinerariaefolium) is a perennial herbal plant which originates from Dalmatian coast and has become an economically important crop for insect control. The insecticidal compounds known as pyrethrins are mainly extracted from the pyrethrum flower head. In most cases, pyrethrin content in the flower ranges from 0.5 to 2% of the dry flower mass. Total pyrethrins in flower extract denote to three esters of chrysantemic acid (pyrethrin I, cinerin I, jasmolin I) and three esters of pyrethric acid (pyrethrin II, cinerin II , jasmolin II). The most active extract ingredients are pyrethrin I and pyrethrin II which act as insecticides and repellents, respectively. Because of excellent insecticidal characteristics which include high efficiency, low toxicity to mammals, broad-spectrum, low residues and a low impact on the environment, pyrethrins have become one of the most important insecticides in food preservation, household and organic agriculture. Plant samples analysed in this study were collected as naturally occured species in wild and also as species cultivated in organic agriculture. Selected essential and non-essential elements in samples of plant root, stem, leaf and flower were determined by inductively coupled plasma atomic emission spectrometry (ICP-AES). Pyrethrum flower extracts were also analysed on element content. Pyrethrins content in extracts was determined by use of high performance liquid chromatography (HPLC). The results of elements and pyrethrins content were used for comparison between species occured in wild and those cultivated in organic agriculture.

Izvorni jezik
Engleski

Znanstvena područja
Kemija

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