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Extraction of Botanical Pesticides from Pelargonium graveolens using Supercritical Carbon Dioxide

SYSNO ASEP	0441570
Document Type	J - Journal Article
R&D Document Type	Journal Article
Subsidiary J	Článek ve WOS
Title	Extraction of Botanical Pesticides from Pelargonium graveolens using Supercritical Carbon Dioxide
Author(s)	Machalová, Zdeňka (UCHP-M)_RID Sajfrtová, Marie (UCHP-M)_{RID, ORCID, SAI} Pavela, R. (CZ) Topiař, Martin (UCHP-M)_{RID, ORCID, SAI}
Source Title	Industrial Crops and Products. - : Elsevier - ISSN 0926-6690 Roč. 67, MAY (2015), s. 310-317
Number of pages	8 s.
Language	eng - English
Country	NL - Netherlands
Keywords	botanical pesticides ; geranium oil ; supercritical fluid extraction
Subject RIV	CI - Industrial Chemistry, Chemical Engineering
R&D Projects	TA01010578 GA TA ČR - Technology Agency of the Czech Republic (TA ČR)
Institutional support	UCHP-M - RVO:67985858
UT WOS	000352039600042
EID SCOPUS	84922552789
DOI	10.1016/j.indcrop.2015.01.070
Annotation	Pelargonium graveolens is a valuable source of biologically active compounds and a promising botanical pesticide. In this study, supercritical fluid extraction (SFE) of Pelargonium leaves was optimized to improve the extraction yields, selectivity and pesticidal activity under different operational conditions (pressure 9–30 MPa, temperature 40 and 50 °C). The composition and pesticidal activity of the CO2 extracts were compared with the isolates obtained by maceration and hydrodistillation. GC–MS and GC–FID were used to determine the chemical composition of the isolates. The insecticidal activity (acute and chronic toxicity, antifeedancy) of the isolates was measured on larvae of Spodoptera litoralis.The antifungal activity was evaluated as the inhibition effect on the growth of model pathogenic and toxinogenic fungi. Results suggest that CO2 extracts of P. graveolens can be suitable substitutes to the essential oil in the use as botanical pesticides.
Workplace	Institute of Chemical Process Fundamentals
Contact	Eva Jirsová, jirsova@icpf.cas.cz, Tel.: 220 390 227
Year of Publishing	2016

Number of the records: 1