Supercritical fluid extraction from Lippia alba: global yields, kinetic data, and extract chemical composition

Braga, Mara E.M.; Ehlert, Polyana Aparecida Dias; Ming, Lin Chau; Meireles, M. Ângela A.

doi:10.1016/j.supflu.2004.11.008

Cited by 61 publications

(30 citation statements)

References 20 publications

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“…Global yield can be referred to a single target compound or to the global mixture of compounds. This parameter is closely related to the solubility of the solute in the supercritical fluid [11,159,160]. Moreover, the solubility of target compounds can be determined also from the slope of the linear portion of the extraction curve in the stage of constant-extraction rate period (CER) [146].…”

Section: Process Considerationsmentioning

confidence: 99%

Supercritical Fluid Extraction of Plant Flavors and Fragrances

2013

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Supercritical fluid extraction (SFE) of plant material with solvents like CO 2 , propane, butane, or ethylene is a topic of growing interest. SFE allows the processing of plant material at low temperatures, hence limiting thermal degradation, and avoids the use of toxic solvents. Although today SFE is mainly used for decaffeination of coffee and tea as well as production of hop extracts on a large scale, there is also a growing interest in this extraction method for other industrial applications operating at different scales. In this review we update the literature data on SFE technology, with particular reference to flavors and fragrance, by comparing traditional extraction techniques of some industrial medicinal and aromatic crops with SFE. Moreover, we describe the biological activity of SFE extracts by describing their insecticidal, acaricidal, antimycotic, antimicrobial, cytotoxic and antioxidant properties. Finally, we discuss the process modelling, mass-transfer mechanisms, kinetics parameters and thermodynamic by giving an overview of SFE potential in the flavors and fragrances arena.

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Section: Process Considerationsmentioning

confidence: 99%

Supercritical Fluid Extraction of Plant Flavors and Fragrances

2013

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“…Natural products are extracted by conventional methods such as Soxhlet and room temperature solvent extraction, [1][2][3][4][5][6][7] or by ultrasound, [8][9][10][11][12][13][14] microwaves, [15][16][17][18] supercritical solvents [19][20][21][22][23][24][25][26][27][28][29][30] or other methods. [31][32][33][34] In this paper a new method is developed to extract alkaloids, which are among the most important groups of secondary metabolites.…”

Section: Introductionmentioning

confidence: 99%

New extraction technique for alkaloids

Djılanı¹,

Legseir²,

Soulimani³

et al. 2006

J. Braz. Chem. Soc.

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Um método de extração de produtos naturais foi desenvolvido. Comparado aos outros métodos, a nova técnica é rápida, mais eficiente e consome menos solvente. A extração de alcalóides de produtos naturais, como Hyoscyamus muticus, Datura stramonium e Ruta graveolens, consiste no uso de uma solução sonicada, contendo um surfactante como agente extrator. Os alcalóides são precipitados pelo reagente de Mayer, dissolvidos em uma solução alcalina, e então, extraídos com clorofórmio. Este artigo compara os resultados obtidos com outros métodos, mostrando claramente as vantagens do novo método.A method of extraction of natural products has been developed. Compared with existing methods, the new technique is rapid, more efficient and consumes less solvent. Extraction of alkaloids from natural products such as Hyoscyamus muticus, Datura stramonium and Ruta graveolens consists of the use of a sonicated solution containing a surfactant as extracting agent. The alkaloids are precipitated by Mayer reagent, dissolved in an alkaline solution, and then extracted with chloroform. This article compares the results obtained with other methods showing clearly the advantages of the new method.

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“…Entre los cuatro métodos de extracción empleadas, la extracción con solvente y la extracción de fluido supercrítico (CO 2 ) produjeron mayores rendimientos del aceite esencial, aunque la extracción con solvente aisló una mayor cantidad hidrocarburos de monoterpenos y la extracción por fluido supercrítico (CO 2 ) aisló una mayor cantidad de compuestos más pesados, incluyendo sesquiterpenoides y hidrocarburos (Cn > 25). Braga et al (2005) compararon la extracción supercrítica con CO 2 con los métodos convencionales de extracción por hidrodestilación, etanol a baja presión y etanol con calentamiento (Soxhlet). Para estos autores el mayor rendimiento se obtuvo con extracción con CO 2 en condiciones de 318 K y 100 bar.…”

Section: Métodos De Extracción Del Aceite Esencial Para L Albaunclassified

Quimiotipos, Extracción, Composición y Aplicaciones del Aceite Esencial de Lippia alba

Linde

Colauto

Albertó

et al. 2016

Rev. bras. plantas med.

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RESUMO: Quimiotipos, extração, composição e uso do óleo essencial de Lippia alba. Lippia alba é uma planta amplamente distribuída nas zonas tropicais, subtropicais e temperadas das Américas, África e Ásia. O óleo essencial de L. alba tem sido amplamente estudado, entretanto apresenta variações de produção. Portanto este estudo teve como objetivo realizar uma revisão dos principais quimiotipos, métodos de extração, composição e aplicação do óleo essencial de L. alba. Neste estudo são discutidos os principais quimiotipos e sua relação com fatores genéticos e características morfológicas. Também são discutidos os fatores que afetam o rendimento de produção, composição química, métodos de extração e do uso e da atividade biológica do óleo essencial de L. alba. Apesar da vasta literatura sobre os óleos essenciais de L. alba, ainda desenvolvimento de aplicações para a produção de cosméticos, fármacos e alimentos, bem como faltam definições agronomicas sobre o cultivo e melhoramento desta planta.Palavras chave: Lippia alba, óleo essencial, quimiotipo, atividade biológica, método de extração. ABSTRACT: Chemotypes, extraction, chemical composition and use of lippia alba essential oil.Lippia alba is a plant widely distributed in tropical, subtropical and temperate zones of the Americas, Africa and Asia. The essential oil of L. alba has been widely studied and there are many variations in the production process. Therefore, this study is aimed at conducting a review of the main chemotypes, extraction methods, composition and application of the essential oil of L. alba. In this study, the main chemotypes and its relation to genetic and morphological characteristics are discussed. It also discusses the factors that affect the yield, chemical composition, extraction methods and the use and the biological activity of the essential oil of L. alba. Despite the vast literature on the essential oils of L. alba, there is still a lack of development in its application for the production of cosmetics, pharmaceuticals and food, as well as a lack of agronomic definitions for its cultivation and genetic improvement.

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Supercritical fluid extraction from Lippia alba: global yields, kinetic data, and extract chemical composition

Cited by 61 publications

References 20 publications

Supercritical Fluid Extraction of Plant Flavors and Fragrances

Supercritical Fluid Extraction of Plant Flavors and Fragrances

New extraction technique for alkaloids

Quimiotipos, Extracción, Composición y Aplicaciones del Aceite Esencial de Lippia alba

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