Supercritical Fluid Extraction of Essential Oil Components from Lemon-Scented Botanicals

Rozzi, N.L.; Phippen, Winthrop B.; Simon, James E.; Singh, Rakesh K.

doi:10.1006/fstl.2001.0873

Cited by 48 publications

(19 citation statements)

References 5 publications

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“…This technique requires low pressure, moderate temperature, and CO 2 as solvent for a wide variety of applications such as EO and metal cation extraction. CO 2 is non-toxic, non-explosive, noncorrosive, readily available, safe, inexpensive, and easily eliminated from the extract [44,45].…”

Section: Methods Of Extraction Of Essential Oilsmentioning

confidence: 99%

Essential Oils and Mono/bi/tri-Metallic Nanocomposites as Alternative Sources of Antimicrobial Agents to Combat Multidrug-Resistant Pathogenic Microorganisms: An Overview

2020

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Over the past few decades, many pathogenic bacteria have become resistant to existing antibiotics, which has become a threat to infectious disease control worldwide. Hence, there has been an extensive search for new, efficient, and alternative sources of antimicrobial agents to combat multidrug-resistant pathogenic microorganisms. Numerous studies have reported the potential of both essential oils and metal/metal oxide nanocomposites with broad spectra of bioactivities including antioxidant, anticancer, and antimicrobial attributes. However, only monometallic nanoparticles combined with essential oils have been reported on so far with limited data. Bi- and tri-metallic nanoparticles have attracted immense attention because of their diverse sizes, shapes, high surface-to-volume ratios, activities, physical and chemical stability, and greater degree of selectivity. Combination therapy is currently blooming and represents a potential area that requires greater attention and is worthy of future investigations. This review summarizes the synergistic effects of essential oils with other antimicrobial combinations such as mono-, bi-, and tri-metallic nanocomposites. Thus, the various aspects of this comprehensive review may prove useful in the development of new and alternative therapeutics against antibiotic resistant pathogens in the future.

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Section: Methods Of Extraction Of Essential Oilsmentioning

confidence: 99%

Essential Oils and Mono/bi/tri-Metallic Nanocomposites as Alternative Sources of Antimicrobial Agents to Combat Multidrug-Resistant Pathogenic Microorganisms: An Overview

2020

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“…[74] Mostly, SFE is conducted using CO 2 , which has very low critical pressure and temperature, is nonflammable and nontoxic, and not expensive. [75] Hegel et al [76] used CO 2 as the supercritical fluid to extract lipids from Saccharomyces cerevisiae at 20 MPa and 40 C; the lipid yield was about 30%, whereas that with the common extraction method was up to 23% (with a mixture of chloroform and methanol as a solvent). Cheng et al [77] used SFE to extract lipids from Pavlova sp.…”

Section: Extractionmentioning

confidence: 99%

Biodiesel from Microorganisms: A Review

Chen

Nie

et al. 2021

Energy Tech

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As societies develop and industrialize, sources of energy such as natural gas, coal, and oil become increasingly important in daily life. Among all forms of energy, fossil fuels are the most important, being primary sources of energy, [1] and, given their high heating value and therefore high efficiency, indispensable to heating, transport, and manufacturing operations. Fossil fuels most frequently seen in daily life are oil, coal, and natural gas. In 2019, total fossil energy consumption in the world was 492.34 exajoules (1 exajoule ¼ 10 18 J), accounting for 84.3% of the total energy. [2] Global demand for fossil fuels is predicted to increase to 19.08 billion liters a day by 2040. [3] However, fossil fuels are nonrenewable, and their use is also associated with many other problems such as air pollution, global warming, and unsustainable development. By 2030, the concentration of the greenhouse gas CO 2 is predicted to increase by 80% of the level in 2007, [4] which will contribute a great deal to global warming. These considerations make it essential for researchers to find alternatives to fossil fuels.The USA Energy Independence and Security Act declared that 136.27 billion liters of renewable fuel will be produced by 2022 in USA, including 3.78 billion liters of biodiesel, 60.56 billion liters of cellulosic biofuels, and 56.78 billion liters of maizebased ethanol. [5] Among all the suitable replacements, biofuels have the highest potential, because they can use waste material as feedstock, and they are renewable. In 2019, world production of biofuels was 111.83 million liters of oil equivalent per day, and the growth rate was 5.1% more than that in 2018. [6] Biofuels include bioethanol, biodiesel, biogas, biohydrogen, etc. [7] Forest waste, waste cooking oil, and similar materials can be used for producing biodiesel. In recent decades, microorganisms have been tested for their suitability as feedstock to produce biodiesel, and have proved more advantageous than other materials. The properties of biodiesel are similar to, and in some cases better than, those of diesel. For example, biodiesel has a higher cetane number, a higher flash point, and almost no sulfur, unlike diesel. When used in engines, biodiesel emits smaller quantities of particulate matter and carbon monoxide. [8] In addition, biodiesel can be mixed with fossil diesel in any proportion. Biodiesel is the predominant biofuel in Europe and the Asia Pacific and accounted for 81% and 74% of the total biofuels, respectively, used in these regions in 2019. [2] World production of biofuels from 1999 to 2019 is shown in Figure 1, and 2 shows the production of ethanol and biodiesel in 2009 and 2019.However, many external and internal facts hinder the development of biodiesel. For example, biodiesel is less competitive than diesel in terms of price and also inferior to diesel in some ways; the oxygen content of biodiesel lowers its heat value; and some forms of biodiesel also emit larger quantities of particulate matter (PM) and NO x . These drawbacks mus...

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“…Solubility of essential oils in supercritical carbon dioxide is much stronger compared to other substances tested for extraction under low pressure. Another example can be the extraction of lemon aroma [55]. Limonene contained in the peel of lemon belongs to the group of essential oils characterized by good solubility in supercritical CO 2 .…”

Section: Extraction Of Vegetable Materials With Carbon Dioxide In Supmentioning

confidence: 99%

Supercritical Fluid Extraction of Vegetable Materials

Kułażyński¹,

Stolarski²,

Fałtynowicz³

et al. 2016

ChChT

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Supercritical Fluid Extraction of Essential Oil Components from Lemon-Scented Botanicals

Cited by 48 publications

References 5 publications

Essential Oils and Mono/bi/tri-Metallic Nanocomposites as Alternative Sources of Antimicrobial Agents to Combat Multidrug-Resistant Pathogenic Microorganisms: An Overview

Essential Oils and Mono/bi/tri-Metallic Nanocomposites as Alternative Sources of Antimicrobial Agents to Combat Multidrug-Resistant Pathogenic Microorganisms: An Overview

Biodiesel from Microorganisms: A Review

Supercritical Fluid Extraction of Vegetable Materials

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