Supercritical fluid extraction of pyrethrins from pyrethrum flowers (Chrysanthemum cinerariifolium) compared to traditional maceration and cyclic pressurization extraction

Gallo, Monica; Formato, Andrea; Ianniello, Domenico; Andolfi, Anna; Conte, Esterina; Ciaravolo, Martina; Varchetta, Vincenzo; Naviglio, Daniele

doi:10.1016/j.supflu.2016.09.012

Cited by 49 publications

(34 citation statements)

References 26 publications

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“…The extracts analyzed in the present work were obtained by rapid solid liquid dynamic extraction (RSLDE), a convenient extractive technique which is easy to implement on the base of automated devices and does not require special expertise [12][13][14]. Contrary to previous studies conducted on red (Strongylocentrotus franciscanus) and green (S. droebachiensis) sea urchins using different hard strategies to obtain extracts [39,40], RSLDE allowed us to investigate the composition of shells without using a high volume of acidic solvents.…”

Section: Discussionmentioning

confidence: 99%

“…The aim of this study is to obtain extracts of P. lividus shells using the rapid solid liquid dynamic extraction (RSLDE) implemented via Naviglio Extractor®, as this technique has already successfully applied in the pharmaceutical, cosmetic, herbal, food and beverage fields [9][10][11][12][13][14][15]. Here we present our results on the qualitative and quantitative analysis via gas chromatography-mass spectrometry (GC-MS) of lipophilic components of the crude extract.…”

Section: Introductionmentioning

confidence: 99%

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Fatty Acids from Paracentrotus lividus Sea Urchin Shells Obtained via Rapid Solid Liquid Dynamic Extraction (RSLDE)

et al. 2019

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Sea urchins (Echinodermata, Echinoidea) are good a source of bioactive compounds belonging to different classes of natural substances. The edible Mediterranean sea urchin Paracentrotus lividus is a renowned animal model for study in different fields of biology, but it is intensively harvested for high commercial value due to the delicacy of its gonads. Most studies have focused on the composition and the nutritional value of P. lividus gonads (the edible part), but little interest has been taken in the other body parts, such as the shells and spines, which are generally considered waste material. The purpose of this study was to obtain an extract from sea urchin shells, with a green methodology of extraction, and to characterize the lipophilic components for potential applications. The shells of P. lividus were extracted via a very well performing technology based on rapid solid liquid dynamic extraction (RSLDE) implemented via an automated device (Naviglio Extractor®). The obtained extract shows the presence of fatty acids and their esters (methyl, ethyl and 1-glycerol esters). Gas chromatography-mass spectrometry (GC-MS) measurements were used to determine fatty acid abundance in the chromatographic fractions of the extract. Arachidonic acid (ARA), 5,8,11,14,17-eicosapentanoic acid (EPA), and 11-eicosenoic acids and their esters are the most abundant components. The presence of many polyunsaturated fatty acids (PUFA) in the extract, even in low percentages allows a future application in nutrition or medical use.

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Section: Discussionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Fatty Acids from Paracentrotus lividus Sea Urchin Shells Obtained via Rapid Solid Liquid Dynamic Extraction (RSLDE)

et al. 2019

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“…Many other plant species with known pesticidal properties are not always abundant in local areas, e.g. neem and pyrethrum, due to their endemic habitat limitations, and may principally contain highly non-polar active ingredients that are generally more difficult to extract (Gallo et al, 2017;Garg et al, 1994). Higher costs of using rare or difficult-to-process plant species could change the economics of their use in favour of synthetics or more readily available plant species, even when such products may be relatively more effective.…”

Section: Discussionmentioning

confidence: 99%

Invasive weeds with pesticidal properties as potential new crops

Mkindi

Mpumi

Tembo

et al. 2017

Industrial Crops and Products

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Plants with pesticidal properties have been investigated for decades as alternatives to synthetics, but only a handful have been commercialised and developed as non-food cash crops. One of the reasons why pesticidal plants are failing to deliver new pesticidal products is that they are often not evaluated under field conditions by farmers. Furthermore, many aspects of pesticide use related to environmental safety, such as their impact on beneficial organisms, remain under-evaluated. With a view to overcoming these bottlenecks, extracts made from six abundant weed species found across sub-Saharan Africa (Bidens pilosa, Lantana camara, Lippia javanica, Tithonia diversifolia, Tephrosia vogelii and Vernonia amygdalina) were evaluated in on-station and on-farm trials over two years (2015 and 2016) in two different countries (Tanzania and Malawi) on common bean plants (Phaseolus vulgaris). All plant species offered effective control of key pest species that was comparable in terms of harvested bean yield to a synthetic pyrethroid. Furthermore, the plant pesticide treatments had significantly lower negative effects on natural enemies (hover flies, lacewings, ladybird beetles and spiders). Thus, pesticidal plants were better able to support ecosystem services whilst effectively managing pests. Small holder farmer rankings on the perceived efficacy of the different plant species indicated that T. vogelii was the most preferred and effective, achieving bean yields as good as the synthetic, if not better. As T. vogelii is fast growing with a well-known and understood phytochemistry, it is an excellent candidate for commercial development to supplement pyrethrum production by African small holder farmers.

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“…The common extraction methods for extracting herbal medicines are mainly hot expelling, cold pressing, supercritical uid extraction 11 and Soxhlet. 12 However, each method has its drawbacks.…”

Section: Introductionmentioning

confidence: 99%

“…12 However, each method has its drawbacks. As these techniques are time-consuming and require large volumes of expensive solvents, 13 factors such as effectiveness, cost, simplicity and waste have considerable inuence on the extraction method chosen 11 compared to traditional maceration and cyclic pressurization extraction. 12 Compared with the above methods, the microwave assisted extraction is currently not a common method used in bioactive compound extraction, its advantages include rapid and convenient extraction rate, no damage to the biological activity of the extract, and lower cost of sample preparation.…”

Section: Introductionmentioning

confidence: 99%

Study on microwave assisted extraction of chrysophanol and its intervention in biofilm formation of Streptococcus suis

et al. 2019

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Supercritical fluid extraction of pyrethrins from pyrethrum flowers (Chrysanthemum cinerariifolium) compared to traditional maceration and cyclic pressurization extraction

Cited by 49 publications

References 26 publications

Fatty Acids from Paracentrotus lividus Sea Urchin Shells Obtained via Rapid Solid Liquid Dynamic Extraction (RSLDE)

Fatty Acids from Paracentrotus lividus Sea Urchin Shells Obtained via Rapid Solid Liquid Dynamic Extraction (RSLDE)

Invasive weeds with pesticidal properties as potential new crops

Study on microwave assisted extraction of chrysophanol and its intervention in biofilm formation of Streptococcus suis

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