Supercritical fluid extraction of phytosterols from sugarcane bagasse: Evaluation of extraction parameters

Álvarez-Henao, María Victoria; Cardona, Liliana Gómez; Hincapié, Sara; Londoño-Londoño, Julián; Jiménez-Cartagena, Claudio

doi:10.1016/j.supflu.2021.105427

Cited by 19 publications

(10 citation statements)

References 40 publications

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“…[113] Alvarez-Henao et al reported extraction and isolation of 0.300 mg g −1 phytosterols (𝛽-sitosterol, campesterol, and stigmasterol combined) from sugarcane bagasse when extracted with SC-CO 2 under the suitable conditions of temperature (40-80°C), flow rate (6-10 mL min −1 ), and pressure (200-400) bar with use of cosolvent (0-10% ethanol). [114] These reports clearly indicate that for most of the oleoginous materials, SC-CO 2 can extract phytosterols, tocopherols, and carotenoids more efficiently compared to conventional hexane extraction. The process conditions can be chosen suitably for optimized extractions of these components.…”

Section: Extraction Of Phytosterols Tocopherols and Carotenoids Using...mentioning

confidence: 94%

“…reported extraction and isolation of 0.300 mg g −1 phytosterols (β‐sitosterol, campesterol, and stigmasterol combined) from sugarcane bagasse when extracted with SC‐CO 2 under the suitable conditions of temperature (40–80°C), flow rate (6–10 mL min −1 ), and pressure (200–400) bar with use of co‐solvent (0–10% ethanol). [ 114 ]…”

Section: Extraction Of Phytosterols Tocopherols and Carotenoids Using...mentioning

confidence: 99%

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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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Section: Extraction Of Phytosterols Tocopherols and Carotenoids Using...mentioning

confidence: 94%

Section: Extraction Of Phytosterols Tocopherols and Carotenoids Using...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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“…PS oily paste was extracted from the bagasse of sugarcane using supercritical fluids and consisted of a mixture of β‐sitosterol (15.91 mg/g extract), campesterol (7.02 mg/g extract) and stigmasterol (9.46 mg/g extract) in a proportion of approximately 49%, 29%, and 21%, respectively (Alvarez‐Henao et al, 2022). Soy oil (β‐sitosterol 62%, campesterol 18%, and stigmasterol 19%) was purchased from the local market (Medellin, Colombia).…”

Section: Methodsmentioning

confidence: 99%

“…Once the samples were reconstituted in chloroform, without derivatization, they were analyzed on a TRACE Gas Chromatograph 1300 Series, equipped with an autosampler AI/AS 1310 and a detector TSQ™ 8000 (Thermo Scientific, Waltham, MA, USA), according to the method described by Alvarez‐Henao et al (2022). The column used to separate campesterol, stigmasterol, and β‐sitosterol was a Rxi®‐5Sil MS (30 m × 0.25 mm id, 0.25 μm film thickness, Restek, USA).…”

Section: Methodsmentioning

confidence: 99%

Spray drying of phytosterols: An alternative to improve the solubility of bioactive ingredients, with application in food matrices

Alvarez‐Henao,

León,

Londoño‐Londoño

et al. 2023

J Food Process Engineering

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Phytosterols (PS) are bioactive compounds widely distributed in nature and are similar to cholesterol in structure and function. They contribute to the decrease of cardiovascular diseases, which are associated with high‐cholesterol consumption. Plant sterols are lipophilic and need to be encapsulated to improve their solubility to be applied in foods. For this reason, this work found the optimum mixture for the encapsulation of PS, with soy protein isolate, maltodextrin, and Arabic gum used as encapsulating agents. Characterization of the design was evaluated in terms of the encapsulation yield, efficiency, water activity (aw), moisture, and water solubility. The drying process was undertaken at an inlet temperature of 165°C, 80% aspiration, and a PS/encapsulating agent ratio of 1:3. The optimal formulation corresponded to the soy protein isolate: Arabic gum: maltodextrin ratio of 21:78:1, respectively, which improved all the properties evaluated. The morphology and x‐ray diffraction results of this formulation also determined that the solubility and particle size were improved.Practical ApplicationPhytosterols are functional ingredients that contribute to reducing cholesterol levels in blood. However, its incorporation in different fields has been somewhat affected due to its crystalline structure. Therefore, to improve its application, different methods have been studied, but spray drying is one of the least evaluated. This study highlights the importance of phytosterols as bioactive compounds, their protection and solubility, achieved through technologies such as the spray drying and various encapsulating agents; which proportionate an open window to allow the future be applied in different sectors of the food industry, pharmaceuticals and cosmetics, especially in products that have a high‐water content and with the purpose of giving importance to health properties.

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“…[10] Among these, SFE came forward as a promising green technology that was widely investigated for seed oil extraction and plant extract acquisition. [11][12][13][14][15][16][17][18][19][20] SFE is a separating process oil phase (extractant) from another food matrix using inert gases pressured above the critical point where supercritical conditions are met. [11] Besides, supercritical fluid applications are commonly studied in the fields of pharmacology as drug solubility, [21][22][23][24][25][26] material science as nanoparticle formation, [27][28][29] and polymerization.…”

Section: Introductionmentioning

confidence: 99%

A Comparative Study on Response Surface Optimization of Supercritical Fluid Extraction Parameters to Obtain Portulaca Oleracea Seed Oil with Higher Bioactive Content and Antioxidant Activity Than Solvent Extraction

Zadeh

Özdikicierler

Pazır

2022

Euro J Lipid Sci & Tech

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Portulaca oleracea (purslane) seed oil is a rich source of omega-6 and omega-3 fatty acids. Extraction of the purslane seed oil while preserving its high nutritive quality has been a challenge since conventional solvent extraction has many adverse effects on bioactive content. This study aims the optimization of purslane seed oil supercritical fluid extraction (SFE) conditions and to compare purslane seed oils obtained with SFE and conventional solvent extraction in terms of oil yield, along with the purslane seed oil quality and bioactive content. For this purpose, the SFE process parameters (pressure, temperature, static time, and dynamic time) are optimized for oil yield, omega-6, omega-3, and antioxidant activity using response surface methodology (RSM). Optimum SFE pressure, temperature, static time, and dynamic time levels are determined as 350 bar, 50 °C, 20 min, and 90 min, respectively. Oil yield and physicochemical quality properties of conventional solvent extract and SFE samples are determined and compared. Consequently, samples obtained via SFE and solvent extraction have similar quality properties. Distinctly, SFE allows an extraction with 5.6% higher total phenolic compound (TPC) and 33% higher antioxidant activity than solvent extraction. Practical Applications: In the study, the extraction of purslane oil using supercritical fluid extraction is optimized with different approaches. At optimum conditions, purslane oil is extracted and all physicochemical properties and the process efficiency (yield) are compared with the solvent-extracted samples. The results of this study make supercritical fluid extraction of purslane seed oil possible since all optimum operating conditions of a pilot-sized extractor are reported in the study. It is believed that the results provide a good starting point for industrial operations. Moreover, researchers also believe that research studies unveiling the new potential oil-bearing seeds are important to overcome the vegetable oil shortage that emerged this year.

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Supercritical fluid extraction of phytosterols from sugarcane bagasse: Evaluation of extraction parameters

Cited by 19 publications

References 40 publications

Supercritical Carbon Dioxide Extraction of Vegetable Oils: Retrospective and Prospects

Supercritical Carbon Dioxide Extraction of Vegetable Oils: Retrospective and Prospects

Spray drying of phytosterols: An alternative to improve the solubility of bioactive ingredients, with application in food matrices

A Comparative Study on Response Surface Optimization of Supercritical Fluid Extraction Parameters to Obtain Portulaca Oleracea Seed Oil with Higher Bioactive Content and Antioxidant Activity Than Solvent Extraction

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