Extração do óleo de manjericão usando fluido supercrítico: analise experimental e matemática

Barros, Nídia Alves de; Assis, André von Randow de; Mendes, Marisa Fernandes

doi:10.1590/0103-8478cr20130917

Cited by 7 publications

(6 citation statements)

References 8 publications

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“…According to the mass spectrometry fragmentation, to the molecular ion (m/z 426), and to the previous NMR elucidation technique, the β-amyrin compound was confirmed ( Figure 5). These data are in accordance with the literature descriptions (Barros, de Assis, Mendes, 2014). Considering that β-amyrin was detected as the main constituent in HP, DP and HSox, this substance was used as standard for further quantification studies.…”

Section: Gas Chromatography Analysis: Identification and Quantificatisupporting

confidence: 89%

Passiflora mucronata leaves extracts obtained from different methodologies: a phytochemical study based on cytotoxic and apoptosis activities of triterpenes and phytosterols constituents

Silva

Oliveira

Barbosa

et al. 2020

Braz. J. Pharm. Sci.

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Cancer is one of the most prevalent diseases worldwide and the natural products could be a source of bioactive compounds. Passiflora mucronata (PM) belongs to a very known vegetal genus, although, there are no studies about cytotoxic activity or isolated compounds. Different extracts from PM were obtained by liquid-liquid partition (P), Soxhlet (Sox) and supercritical fluid (SFE1-5) extraction techniques, being compared concerning their yields, chemical profile and cytotoxicity. The Sox extracts showed the highest yields (6.03%: hexane; 2.51%: dichloromethane) followed by SFE (from 4.34 to 1.63%) and partitions (1.06 and 2.26%). The hexane partition (HP) showed the best cytotoxic activity against K562 cell line (IC 50 = 18.72 µg.mL-1). From HP, the following compounds were identified and analysed its cytotoxic activities: β-amyrin (IC 50 = 3.92 µg.mL-1), β-sitosterol (IC 50 = 3.37 µg.mL-1), stigmasterol (IC 50 = 3.31 µg.mL-1) and oleanolic acid. Stigmasterol induced about 75% of K562 total apoptosis. The compounds were tested against MA-104 cell line and the selective index (SI) attributed (SI >10 for all compounds). This indicates good selectivity to K562 cell line at the expense of MA-104. This is the first time, identifying those compounds to PM .

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Section: Gas Chromatography Analysis: Identification and Quantificatisupporting

confidence: 89%

Passiflora mucronata leaves extracts obtained from different methodologies: a phytochemical study based on cytotoxic and apoptosis activities of triterpenes and phytosterols constituents

Silva

Oliveira

Barbosa

et al. 2020

Braz. J. Pharm. Sci.

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“…This procedure consists of wrapping small particles, a liquid or a gas inside a coating layer or inside a matrix. According Beirão-da-costa et al (2013), this technique allows sensitive structures contained in the essential oil to be protected from inappropriate environmental conditions, such as light, moisture, and oxygen, allowing the conservation of the product, increasing its shelf life and promoting the controlled release of the encapsulated material under predefined conditions.…”

Section: Encapsulation Methods For Essential Oilsmentioning

confidence: 99%

“…The extraction occurs both from fresh and dried plant organs and can be used by the methods of steam dragging, hydrodistillation, extraction by supercritical CO 2 , extraction by organic solvents, or cold pressing. Due to the physicochemical characteristics of these metabolites, there are several variables that interfere with the processing yield, such as the choice of plant, stage of development, harvest time, storage and drying conditions, and the interaction between the solvent and the oil components (RÍOS and RECIO, 2005;YUSOFF, 2011;BARROS, 2014).…”

Section: Introductionmentioning

confidence: 99%

Essential oils with contact insecticidal activity and encapsulation methods: a literature review

Silva

Albuquerque

Coelho

et al. 2022

Reveng

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Due to the increasing resistance of pests to chemical insecticides and the negative consequences arising from the use of chemicals, such as environmental contamination and health hazards, alternative methods of control need to be studied. In nature, essential oils play an important role in protecting plants as antibacterials, antivirals, antifungals, insecticides, and also against herbivores by reducing their appetite for such plants. Secondary metabolites produced by medicinal or aromatic plants have the capacity for behavioral modification, growth and feeding reduction, besides exerting toxic and sterility effects on insects considered as pests, thus being a control strategy, besides being an alternative to the chemical products available on the market. Thus, the present review aimed to elucidate the use of essential oils in the control of various grain pests by exploring their bioactive compounds and addressing the main methods of encapsulation for the proper storage of these oils.

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“…De Barros et al (2014) studied supercritical extraction using laboratory and pilot scale processes. Their parametric studies supported the mathematical models developed for industrial-scale extraction, guaranteeing extraction products with high quality and greater added value.…”

Section: Introductionmentioning

confidence: 99%

Essential oil extraction from onion using ethanol and CO2 as an extraction fluid mixture

et al. 2021

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Introduction: Essential oils are volatile chemical compounds, widely known by their fragrance, as well as by antimicrobial and antioxidant activities. These oils are generally extracted from aromatic plants in procedures using conventional solvents. Methods: In this study, essential oil was extracted from onion (previously chopped and dried) using a mixture of ethanol and CO2 as the extraction fluid. The essential oil obtained from the extraction was collected and purified and the mass was determined (by weighing) to evaluate the effect of CO2 flow on the yield. The essential oil extracted and purified was characterized to determine the acid and refraction indexes, viscosity, and specific mass. Results: The values obtained for refraction and acid indexes are within limits and similar to the average reported in literature. In all cases, when the CO2 was used, there was an increase the essential oil recovery. In terms of quality, the products from this process were characterized to determine the density, acid index and refraction index. The results obtained were similar to those published in the literature. Discussion: The proposed apparatus and CO2 methodology can be considered a good alternative to boost the extraction of essential oil aiming the obtaining of new products for use as raw materials in different industrial processes. Since this apparatus presents more than double extraction yield than Soxhlet experiment.

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Extração do óleo de manjericão usando fluido supercrítico: analise experimental e matemática

Cited by 7 publications

References 8 publications

Passiflora mucronata leaves extracts obtained from different methodologies: a phytochemical study based on cytotoxic and apoptosis activities of triterpenes and phytosterols constituents

Passiflora mucronata leaves extracts obtained from different methodologies: a phytochemical study based on cytotoxic and apoptosis activities of triterpenes and phytosterols constituents

Essential oils with contact insecticidal activity and encapsulation methods: a literature review

Essential oil extraction from onion using ethanol and CO2 as an extraction fluid mixture

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