Optimization of a coconut oil extraction process with supercritical CO2 considering economical and thermal variables

Torres-Ramón, E.; García-Rodríguez, C.M.; Estévez-Sánchez, K.H.; Ruiz-López, I.I.; Rodrı́guez-Jimenes, G.C.; Vega, Gisela; Garcı́a-Alvarado, M.A.

doi:10.1016/j.supflu.2020.105160

Cited by 16 publications

(7 citation statements)

References 28 publications

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“…For the extraction of alkaloids by SFE-CO 2 , previous research suggests that pressure, temperature, extraction time, alkalization treatment time, crushing particle size, and entrainer concentration all affect the experimental results 31 , 32 , 34 – 36 . Thus, we included these factors in our single factor experiments.…”

Section: Resultsmentioning

confidence: 99%

Optimization of supercritical-CO2 extraction and pharmacokinetics in SD rats of alkaloids form Sophora moorcroftiana seed

Gan

Jia

et al. 2022

Sci Rep

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The total alkaloids extracted from the seeds of Sophora moorcroftiana (TAs-SM) have the potential to treat alveolar echinococcosis, a disease included by the WHO in a list of 17 key neglected diseases world-wide. The aims of the current study were first to develop a supercritical fluid extraction (SFE) method for optimizing TAs-SM extraction, and second, to develop an optimized method for evaluating TAs-SM pharmacokinetics in vivo. The Box–Behnken response surface method was used to optimize the extraction process, and ultra-high liquid chromatography coupled with high resolution electrospray mass spectrometry (UPLC-HR-ESI-MS) was used to determine the pharmacokinetics of TAs-SM in SD rats. The results indicated the following optimal SFE extraction conditions: pressure = 31 MPa, temperature = 70 °C, time = 162.18 min. With these parameters, total alkaloids could be extracted from each gram of S. moorcroftiana, with the total content being 68.88 μg. The linear range of UPLC-HR-ESI-MS is 0.78–200.00 ng/ml, R2 > 0.99, and the sample recovery is 99–113%. The precision, accuracy, selectivity and stability of the method meet the requirements of US FDA guidelines. To our knowledge this study is the first to establish an SFE method for extracting TAs-SM and the first to employ UPLC-HR-ESI-MS for measuring TAs-SM in rats. These findings provide important contributions for using TAs-SM in further drug development and clinical applications.

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Section: Resultsmentioning

confidence: 99%

Optimization of supercritical-CO2 extraction and pharmacokinetics in SD rats of alkaloids form Sophora moorcroftiana seed

Gan

Jia

et al. 2022

Sci Rep

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“…SC-CO 2 , a novel green extraction technology, with the advantages of non-toxic, non-explosive and low-temperature [ 27 ]. SC-CO 2 has successfully been used in the extraction of oils such as European cranberry bush, sea buckthorn, Moroccan argan and coconuts [ 28 , 29 , 30 ]. This technique highly reduces the use of toxic organic solvents.…”

Section: Tiger Nut Oilmentioning

confidence: 99%

Tiger Nut (Cyperus esculentus L.): Nutrition, Processing, Function and Applications

Zhang

et al. 2022

Foods

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The tiger nut is the tuber of Cyperus esculentus L., which is a high-quality wholesome crop that contains lipids, protein, starch, fiber, vitamins, minerals and bioactive factors. This article systematically reviewed the nutritional composition of tiger nuts; the processing methods for extracting oil, starch and other edible components; the physiochemical and functional characteristics; as well as their applications in food industry. Different extraction methods can affect functional and nutritional properties to a certain extent. At present, mechanical compression, alkaline methods and alkali extraction–acid precipitation are the most suitable methods for the production of its oil, starch and protein in the food industry, respectively. Based on traditional extraction methods, combination of innovative techniques aimed at yield and physiochemical characteristics is essential for the comprehensive utilization of nutrients. In addition, tiger nut has the radical scavenging ability, in vitro inhibition of lipid peroxidation, anti-inflammatory and anti-apoptotic effects and displays medical properties. It has been made to milk, snacks, beverages and gluten-free bread. Despite their ancient use for food and feed and the many years of intense research, tiger nuts and their components still deserve further exploitation on the functional properties, modifications and intensive processing to make them suitable for industrial production.

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“…The low COM may be attributed to additional energy saving due to smaller energy jumps between saturated liquid and vapor. [ 162 ]…”

Section: Supercritical Carbon Dioxide Extraction: Economic Feasibilit...mentioning

confidence: 99%

“…The low COM may be attributed to additional energy saving due to smaller energy jumps between saturated liquid and vapor. [162] It was reported by that by manipulating operating pressure, temperature and CO 2 flow rates, oils can be extracted with very less amount of phospholipids as it has little higher polarity compared to neutral lipids. [163] This will lead a processor to avoid degumming step.…”

Section: Supercritical Carbon Dioxide Extraction: Economic Feasibilit...mentioning

confidence: 99%

Supercritical Carbon Dioxide Extraction of Vegetable Oils: Retrospective and Prospects

Dhara

Rani

Chakrabarti

2022

Euro J Lipid Sci & Tech

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Supercritical carbon dioxide (SC-CO 2 ) extraction is projected as one of the most viable alternatives to conventional hexane extraction due to its density-dependent solvent power, low viscosity, moderately high diffusion coefficient, and low-temperature operative conditions. Demands for retention of bioactive compounds in oils like wheat germ oil, rice bran oil, almond oil, etc., are increasing and that can be easily met up by this alternative solvent. Solvent extraction of oils rich in polyunsaturated fatty acid, like flaxseed oil, microbial oil, etc., is highly sensitive. Prolonged heating during removal of solvent often leads to degradation of essential fatty acids. As the phase change is done by changing the pressure, the use of SC-CO 2 overcomes such issues. It is quite evident that degumming, one of the processing steps in refining of vegetable oils, will not be required if SC-CO 2 is used for extraction. Moreover, in some other cases, bioactive compounds will be retained in the de-fatted meal and can be recovered with better purity. All these factors will add to the overall economy. A detailed review of the application of SC-CO 2 for the extraction of vegetable oils-the initial reports, current status, and future prospectsis presented in this paper. Practical applications:In recent years, the oils and fats industry has gone through several technological advancements and the most important of them was shifting to physical refining process from highly polluting chemical process. The industry may see another major change in the extraction process in the near future. Hexane has been enlisted as a hazardous air pollutant as per the Clean Air Act, 1990. Recent reports show that hexane may have some role even in ozone layer depletion. Scientists are looking forward to alternatives. SC-CO 2 has emerged as one of the most suitable alternatives. The large capital investment required for the installation of SC-CO 2 -based extraction plants was a major drawback. However, ready availability of critical machineries and advancements in terms of automation has brought down the capital expenditure significantly. The utilization of superior quality by-products generated by the process of SC-CO 2 extraction may be an added advantage for the overall economy of the process.

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Optimization of a coconut oil extraction process with supercritical CO2 considering economical and thermal variables

Cited by 16 publications

References 28 publications

Optimization of supercritical-CO2 extraction and pharmacokinetics in SD rats of alkaloids form Sophora moorcroftiana seed

Optimization of supercritical-CO2 extraction and pharmacokinetics in SD rats of alkaloids form Sophora moorcroftiana seed

Tiger Nut (Cyperus esculentus L.): Nutrition, Processing, Function and Applications

Supercritical Carbon Dioxide Extraction of Vegetable Oils: Retrospective and Prospects

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