Supercritical CO2 extraction of phenolic compounds from Baccharis dracunculifolia

Piantino, Carla R.; Aquino, Francisco Wendel Batista de; Follegatti–Romero, Luis A.; Cabral, Fernando A.

doi:10.1016/j.supflu.2008.07.012

Cited by 61 publications

(40 citation statements)

References 27 publications

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“…The extraction of Artepillin C (2 prenyl groups) with supercritical carbon dioxide was much better than the extraction of p-coumaric acid (0 prenyl groups) and better than that of PHCA (1 prenyl group). This indicates that the addition of prenyl groups decreases the polarity of the molecule, favoring supercritical extraction (Piantino et al, 2008).…”

Section: Extraction Yield Of Dry Ethanolic Extract Of Propolis (Eep)mentioning

confidence: 98%

“…It can be seen that, for the majority of the substances investigated, there was an increase in concentration with increase in pressure, due to the increase in the density of carbon dioxide and the increase in its polarity. Piantino et al (2008) studied the extraction of phenolic compounds from Baccharis dracunculifolia leaves by extraction with supercritical carbon dioxide, ethanol and methanol, with a view to obtaining the same compounds studied in the present work. They chose this vegetable because it is the main source (Park et al, 2004) used by the bees to make the propolis of group 12 in the States of São Paulo and Minas Gerais, and thus, like the propolis, contains large amounts of these phenolic compounds.…”

Section: Extraction Yield Of Dry Ethanolic Extract Of Propolis (Eep)mentioning

confidence: 99%

“…3. Piantino et al (2008), comparing the chemical structure of hydroxycinnamic acid and of its prenylated derivatives (DHCA and PHCA), showed that the addition of a prenyl group to the molecule increased the yield in the supercritical extraction. The extraction of Artepillin C (2 prenyl groups) with supercritical carbon dioxide was much better than the extraction of p-coumaric acid (0 prenyl groups) and better than that of PHCA (1 prenyl group).…”

Section: Extraction Yield Of Dry Ethanolic Extract Of Propolis (Eep)mentioning

confidence: 99%

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Supercritical CO2 extraction of raw propolis and its dry ethanolic extract

Paviani

Saito

Dariva

et al. 2012

Braz. J. Chem. Eng.

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-Three types of propolis extract were prepared and analyzed with respect to their global extraction yields and with respect to the concentration of the following markers: 3,5-diprenyl-4-hydroxycinnamic acid; 3-prenyl-4-hydroxycinnamic acid; 4-hydroxycinnamic acid and 4-methoxy-3,5,7-trihydroxyflavone. The extract EEP (ethanolic extract of propolis) was obtained by the conventional method from raw propolis using ethanol as solvent. The extracts (SFE) were obtained by supercritical solvent extraction from the raw propolis using supercritical carbon dioxide (sc-CO 2 ), with and without the addition of ethanol as a co-solvent. The fractionated supercritical extracts (FSCE) were obtained by fractionation (extract and raffinate) of the dry EEP with sc-CO 2 . EEP yields of 39.5% were obtained and maximum global extraction yields were 7.3% for SFE with no co-solvent, 51% for SFE with 15% ethanol and 18% for the FSCE extract fraction. The concentrations of the markers in the different extracts differed as a function of the operational parameters, indicating that the addition of co-solvent and the selectivity of sc-CO 2 could be manipulated so as to obtain extracts with the yields and concentrations of interest.

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Section: Extraction Yield Of Dry Ethanolic Extract Of Propolis (Eep)mentioning

confidence: 98%

Section: Extraction Yield Of Dry Ethanolic Extract Of Propolis (Eep)mentioning

confidence: 99%

Section: Extraction Yield Of Dry Ethanolic Extract Of Propolis (Eep)mentioning

confidence: 99%

See 1 more Smart Citation

Supercritical CO2 extraction of raw propolis and its dry ethanolic extract

Paviani

Saito

Dariva

et al. 2012

Braz. J. Chem. Eng.

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“…Entre os principais compostos encontrados em extratos de plantas deste gênero estão os compostos terpênicos e os compostos fenólicos. Destacam-se os flavonoides, que são amplamente empregados nas indústrias de alimentos, farmacêutica e cosmética por estarem relacionados às atividades antimicrobianas, antioxidantes e anti-inflamatórias (Ascari et al, 2012;Piantino et al, 2008;Vila, 2006). Diferentes técnicas são utilizadas para a obtenção de extratos não voláteis de material vegetal, sendo que tradicionalmente o método empregado é a maceração da planta com solvente orgânico (Biesaga et al, 2011).…”

Section: Introductionunclassified

Análise Comparativa Do Teor De Flavonoides E Da Atividade Antioxidante De Extratos De Baccharis Uncinella Obtidos Por Extração Supercrítica E Maceração.

Sanvido¹,

Scopel²,

Cassel³

et al. 2015

Anais Do Congresso Brasileiro De Engenharia Química Em Iniciação Científica - Cobeq IC 2015

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RESUMO -O gênero Baccharis compreende cerca de 500 espécies distribuídas pelo continente americano. Os principais compostos relatados em extratos não voláteis do gênero Baccharis são os compostos fenólicos, dentre eles, os flavonoides e terpênicos. Suas principais propriedades biológicas são as atividades antioxidante, antibacteriana e anti-inflamatória. Neste estudo foram empregadas duas técnicas extrativas: extração supercrítica e maceração seguida de partição líquido-líquido. O objetivo do trabalho foi avaliar a atividade antioxidante e o teor flavonoides no extrato, comparando as amostras oriundas da maceração e da extração supercrítica. Foram utilizadas, como matéria prima, as partes aéreas de Baccharis uncinella para ambas as técnicas de extração. A extração supercrítica foi realizada em temperatura de 60 °C e pressões de 150 e 200 bar. O cossolvente etanol foi adicionado a fim de aumentar a polaridade do sistema e melhorar a seletividade da extração em relação a compostos fenólicos. A extração convencional foi realizada com metanol e a planta foi macerada por 10 dias, posteriormente o mesmo foi particionado com solventes de polaridades diferentes: n-hexano, diclorometano e acetato de etila. Os resultados obtidos indicam que o extrato metanólico particionado com acetato de etila foi o que apresentou a melhor atividade antioxidante (CE 50 = 11,80) e maior percentual de flavonoides na fração (5,28 %).

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“…Carbon dioxide is the most frequently used solvent because it is non-toxic, non-flammable, odourless, environment-friendly and easily separated from the extract by depressurization. It also has a good extraction capacity due to its high penetration power (Khansary et al, 2015) and low critical temperature, which allows it to be used in the extraction of thermal sensitive and reactive compounds (Piantino et al, 2008). By changing the process pressure and/or temperature, it is possible to modify the solvation power of the fluid and, therefore, achieve a remarkably high degree of selectivity (Tabernero et al, 2010).…”

Section: New Technologiesmentioning

confidence: 99%

Assessment of the Influence of Processing Conditions on the Antioxidant Potential of Extracts Obtained From Olive Oil Industry Byproducts

Mateo¹,

Hussam²

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Alimentos de la Universitat Politècnica de València. Gracias a todos por la ayuda y los buenos momentos. En especial, gracias a mis compañeros por amenizar las interminables horas en el "lab" con sus risas y tertulias.A Ana María, Jose, Julia, Luis y María, del grupo MIQUALI, por formar parte de las míticas bodegas y de todo lo vivido en ellas.A César y Carmi, por sacarme siempre una sonrisa, abrirme su corazón y brindarme su amistad. Gracias porque conoceros ha formado parte de lo mejor de esta etapa.A los grandes amigos que a pesar de las diferencias, los años y la distancia siguen interpretando los silencios y leyendo en las miradas. Gracias por estar ahí, gracias por vuestra amistad.A las "Anas", por el cariño y el apoyo durante todo este tiempo. Gracias por hacerme sentir en casa.A toda mi familia, porque todo lo que tengo y lo que soy os lo debo a vosotros. A mi hermana, gracias por ser la mejor, por estar siempre a mi lado y querer compartirlo todo conmigo. A todos, abuelos, papás, tíos, Bego y Pablito, gracias por quererme y creer en mí de manera incondicional.A Jordi, por hacerme sentir inmensamente afortunada. Gracias por apoyarme en cada desafío, por tu paciencia y, sobretodo, por el amor y la ilusión que hacen girar mi mundo.

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Supercritical CO2 extraction of phenolic compounds from Baccharis dracunculifolia

Cited by 61 publications

References 27 publications

Supercritical CO2 extraction of raw propolis and its dry ethanolic extract

Supercritical CO2 extraction of raw propolis and its dry ethanolic extract

Análise Comparativa Do Teor De Flavonoides E Da Atividade Antioxidante De Extratos De Baccharis Uncinella Obtidos Por Extração Supercrítica E Maceração.

Assessment of the Influence of Processing Conditions on the Antioxidant Potential of Extracts Obtained From Olive Oil Industry Byproducts

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