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Selvamuthukumaran M, Shi J. Recent advances in extraction of antioxidants from plant by-products processing industries. FOOD QUALITY AND SAFETY 2017. [DOI: 10.1093/fqs/fyx004] [Citation(s) in RCA: 63] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
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Naffati A, Vladić J, Pavlić B, Radosavljević R, Gavarić A, Vidović S. Recycling of filter tea industry by-products: Application of subcritical water extraction for recovery of bioactive compounds from A. uva-ursi herbal dust. J Supercrit Fluids 2017. [DOI: 10.1016/j.supflu.2016.11.010] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Horváth M, Halász G, Kucanová E, Kuciková B, Fekete I, Remeteiová D, Heltai G, Flórián K. Sequential extraction studies on aquatic sediment and biofilm samples for the assessment of heavy metal mobility. Microchem J 2013. [DOI: 10.1016/j.microc.2012.05.024] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Gámiz-Gracia L, Luque de Castro MD. Continuous subcritical water extraction of medicinal plant essential oil: comparison with conventional techniques. Talanta 2012; 51:1179-85. [PMID: 18967949 DOI: 10.1016/s0039-9140(00)00294-0] [Citation(s) in RCA: 120] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/13/1999] [Revised: 12/29/1999] [Accepted: 12/29/1999] [Indexed: 11/16/2022]
Abstract
A subcritical extractor equipped with a three-way inlet valve and an on/off outlet valve has been used for performing subcritical water extractions (SWE) in a continuous manner for the isolation of the essential oil of fennel, a medicinal plant. The target compounds were removed from the aqueous extract by a single extraction with 5 ml hexane, determined by gas-chromatography-flame ionization (GC-FID) and identified by mass spectrometry (MS). The proposed extraction method has been compared with both hydrodistillation and dichloromethane manual extraction. Better results have been obtained with the proposed method in terms of rapidity, efficiency, cleanliness and possibility of manipulating the composition of the extract.
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Affiliation(s)
- L Gámiz-Gracia
- Analytical Chemistry Division, Faculty of Sciences, University of Córdoba, E-14004 Córdoba, Spain
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Shi J, Xue SJ, Ma Y, Jiang Y, Ye X, Yu D. Green separation technologies in food processing: supercritical-CO2 fluid and subcritical water extraction. FOOD ENGINEERING SERIES 2012. [DOI: 10.1007/978-1-4614-1587-9_11] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/10/2023]
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KHAJENOORI M, ASL AHAGHIGHI, HORMOZI F, EIKANI M, BIDGOLI HNOORI. SUBCRITICAL WATER EXTRACTION OF ESSENTIAL OILS FROMZATARIA MULTIFLORABOISS. J FOOD PROCESS ENG 2009. [DOI: 10.1111/j.1745-4530.2008.00245.x] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Cabañero AI, Madrid Y, Cámara C. Mercury-selenium species ratio in representative fish samples and their bioaccessibility by an in vitro digestion method. Biol Trace Elem Res 2007; 119:195-211. [PMID: 17916943 DOI: 10.1007/s12011-007-8007-5] [Citation(s) in RCA: 85] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/30/1999] [Revised: 11/30/1999] [Accepted: 11/30/1999] [Indexed: 11/27/2022]
Abstract
The potential toxicity of mercury (Hg) content in fish has been widely evaluated by the scientific community, with Methylmercury (MeHg) being the only legislated species (1 mg kg-1, maximum concentration allowed in predatory fish). On the other hand, selenium (Se) is recognized to decrease its toxicity when both elements are simultaneously administrated. In the present paper, the total content of Se and Hg and their species in fish of high consumption, such as tuna, swordfish, and sardine, have been evaluated. The percentage of MeHg is higher than 90% of total Hg content. The results show that, for all of them, the Se/Hg ratio is significantly higher than one, being the maximum ratio for sardine. As only studying the bioaccessible fraction the extent of a toxic effect caused by an element can be predicted, the bioaccessibility of both analytes through an in vitro digestion method has been carried out. The results show that MeHg in all fishes is very low bioaccessible in both gastric and intestinal digestion. Because the MeHg bioaccessible fraction might be correlated to the Se content, the potential toxicity cannot be only related to the total Hg content but also to Se/Hg ratio.
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Affiliation(s)
- Ana I Cabañero
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040 Madrid, Spain
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García-Marino M, Rivas-Gonzalo JC, Ibáñez E, García-Moreno C. Recovery of catechins and proanthocyanidins from winery by-products using subcritical water extraction. Anal Chim Acta 2006. [DOI: 10.1016/j.aca.2005.10.054] [Citation(s) in RCA: 86] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Anastassiades M, Scherbaum E. Chapter 4 Sample handling and clean-up procedures II—new developments. CHROMATOGRAPHIC-MASS SPECTROMETRIC FOOD ANALYSIS FOR TRACE DETERMINATION OF PESTICIDE RESIDUES 2005. [DOI: 10.1016/s0166-526x(05)80024-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
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Cabañero AI, Madrid Y, Cámara C. Enzymatic probe sonication extraction of Se in animal-based food samples: a new perspective on sample preparation for total and Se speciation analysis. Anal Bioanal Chem 2004; 381:373-9. [PMID: 15372134 DOI: 10.1007/s00216-004-2798-4] [Citation(s) in RCA: 43] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2004] [Revised: 07/29/2004] [Accepted: 07/30/2004] [Indexed: 11/25/2022]
Abstract
This paper describes a fast, simple and novel extraction method for total selenium and selenium species determination in food samples. Parameters influencing extraction, such as sonication time, extracting media, temperature, sample mass, ultrasound amplitude and sample/enzyme mass ratio were investigated. The enzymatic hydrolysis proposed, enhanced by probe sonication, allowed the quantitative extraction of selenium in chicken muscle, liver, kidney and feed (97, 93, 95 and 102%, respectively) in 2 min, maintaining the original Se-species integrity. Total Se content of the samples was determined using inductively coupled plasma mass spectrometry. Se-species were identified and quantified using high-performance liquid chromatography in conjunction with inductively coupled plasma mass spectrometry. Chromatographic analyses were carried out under two chromatographic conditions and led to the identification of SeMet in all samples. The accuracy of the proposed method was assessed using certified reference materials as well as microwave digestion. Potential advantages of the proposed method over traditional hydrolysis are speed, simplicity and safety of the procedure.
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Affiliation(s)
- Ana I Cabañero
- Departamento de Química Analítica, Facultad de Ciencias Químicas, Universidad Complutense de Madrid, Ciudad Universitaria s/n, 28040, Madrid, Spain
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Morales-Muñoz S, Luque-García JL, Luque de Castro MD. Pressurised liquid-liquid extraction. An approach to the removal of inorganic non-metal species from used industrial oils. CHEMOSPHERE 2004; 56:943-947. [PMID: 15268960 DOI: 10.1016/j.chemosphere.2004.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/09/2003] [Revised: 05/03/2004] [Accepted: 05/07/2004] [Indexed: 05/24/2023]
Abstract
Modified pressurised hot water is used for the development of a high pressure liquid-liquid extraction method for the decontamination of used industrial oils from inorganic non-metal species (chlorine, fluorine and sulphur). The oils were subjected to dynamic extraction with water modified with 5% v/v HNO3 at 200 degrees C as extractant. Under these working conditions the analytes were transferred to the aqueous phase. Spontaneous separation of the two immiscible liquid phases (the used oil and extract) takes place in the collection flask after extraction. The treated and untreated oil samples were oxidised and the chloride, fluoride and sulphate thus formed were determined by ion-chromatography. The method was applied to four oil samples from different locations in Spain. A residence time of approximately =10 min provided oil samples from which 88.3%, 89.4% and 89.4% of chloride, fluoride and sulphate, respectively, have been removed with respect to the initial concentration of each analyte in the oil. The repeatability, expressed as relative standard deviation (RSD), was of 11.9%, 13.7% and 7.2% for Cl(-), F(-) and SO4(2-), respectively; whilst the within-laboratory reproducibility yielded RSDs of 6.2%, 7.9% and 6.2% for the same analytes. The proposed approach has proved to be efficient, simple, easily transferable to industrial scale, cheap, fast and environmentally friendly.
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Affiliation(s)
- S Morales-Muñoz
- Department of Analytical Chemistry, University of Córdoba, Annex C-3, Campus of Rabanales, E-14071 Córdoba, Spain
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Morales-Muñoz S, Luque-Garcı́a J, Luque de Castro M. Demetalization of oils resulting from recycled tires by liquid–liquid extraction using modified superheated water. Talanta 2004; 63:391-6. [DOI: 10.1016/j.talanta.2003.11.006] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2003] [Revised: 10/15/2003] [Accepted: 11/05/2003] [Indexed: 11/16/2022]
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Soto Ayala R, Luque de Castro M. Continuous subcritical water extraction as a useful tool for isolation of edible essential oils. Food Chem 2001. [DOI: 10.1016/s0308-8146(01)00212-6] [Citation(s) in RCA: 96] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Fernández-Pérez V, Jiménez-Carmona M, Luque de Castro M. Continuous liquid–liquid extraction using modified subcritical water for the demetalisation of used industrial oils. Anal Chim Acta 2001. [DOI: 10.1016/s0003-2670(01)00779-6] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Hawthorne SB, Trembley S, Moniot CL, Grabanski CB, Miller DJ. Static subcritical water extraction with simultaneous solid-phase extraction for determining polycyclic aromatic hydrocarbons on environmental solids. J Chromatogr A 2000; 886:237-44. [PMID: 10950291 DOI: 10.1016/s0021-9673(00)00491-x] [Citation(s) in RCA: 53] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
A rapid and very simple method for extracting polycyclic aromatic hydrocarbons (PAHs) from soils, sediments, and air particulate matter has been developed by coupling static subcritical water extraction with styrene-divinylbenzene (SDB-XC) extraction discs. Soil, water, and the SDB-XC disc are placed in a sealed extraction cell, heated to 250 degrees C for 15 to 60 min, cooled, and the PAHs recovered from the disc with acetone/methylene chloride. If the cells are mixed during heating, all PAHs with molecular weights from 128 to 276 are quantitatively (>90%) extracted and collected on the sorbent disc and are then recovered by shaking with acetone/methylene chloride. After water extraction, the sorbent discs can be stored in autosampler vials without loss of the PAHs, thus providing a convenient method of shipping PAH extracts from field sites to the analytical laboratory. The method gives good quantitative agreement with standard Soxhlet extraction, and with certified reference materials for PAH concentrations on soil, sediment (SRM 1944), and air particulate matter (SRM 1649a).
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Affiliation(s)
- S B Hawthorne
- Energy and Environmental Research Center, University of North Dakota, Grand Forks 58202, USA
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Luque de Castro M, Jiménez-Carmona M, Fernández-Pérez V. Towards more rational techniques for the isolation of valuable essential oils from plants. Trends Analyt Chem 1999. [DOI: 10.1016/s0165-9936(99)00177-6] [Citation(s) in RCA: 133] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Isolation of eucalyptus essential oil for GC-MS analysis by extraction with subcritical water. Chromatographia 1999. [DOI: 10.1007/bf02493664] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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