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Free and Esterified Tocopherols, Tocotrienols and Other Extractable and Non-Extractable Tocochromanol-Related Molecules: Compendium of Knowledge, Future Perspectives and Recommendations for Chromatographic Techniques, Tools, and Approaches Used for Tocochromanol Determination. MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27196560. [PMID: 36235100 PMCID: PMC9573122 DOI: 10.3390/molecules27196560] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/01/2022] [Revised: 09/22/2022] [Accepted: 09/23/2022] [Indexed: 11/07/2022]
Abstract
Free and esterified (bound) tocopherols, tocotrienols and other tocochromanol-related compounds, often referred to "tocols", are lipophilic antioxidants of great importance for health. For instance, α-tocopherol is the only tocochromanol with vitamin E activity, while tocotrienols have a positive impact on health and are proposed in the prevention and therapy of so-called modern diseases. Tocopherols, tocotrienols and plastochromanol-8 are the most well-known tocochromanols; in turn, knowledge about tocodienols, tocomonoenols, and other rare tocochromanol-related compounds is limited due to several challenges in analytical chemistry and/or low concentration in plant material. The presence of free, esterified, and non-extractable tocochromanols in plant material as well as their biological function, which may be of great scientific, agricultural and medicinal importance, is also poorly studied. Due to the lack of modern protocols as well as equipment and tools, for instance, techniques suitable for the efficient and simultaneous chromatographical separation of major and minor tocochromanols, the topic requires attention and new solutions, and/or standardization, and proper terminology. This review discusses the advantages and disadvantages of different chromatographic techniques, tools and approaches used for the separation and detection of different tocochromanols in plant material and foodstuffs. Sources of tocochromanols and procedures for obtaining different tocochromanol analytical standards are also described. Finally, future challenges are discussed and perspective green techniques for tocochromanol determination are proposed along with best practice recommendations. The present manuscript aims to present key aspects and protocols related to tocochromanol determination, correct identification, and the interpretation of obtained results.
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Benedetti B, Sanchez del Pulgar J, Di Lena G, Lombardi-Boccia G. Simultaneous analysis of 21 bioactive compounds in biorefinery oil: Multivariate optimization of a method based on liquid chromatography, atmospheric pressure chemical ionization and tandem mass spectrometry. Microchem J 2021. [DOI: 10.1016/j.microc.2021.106761] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Karrar E, Ahmed IAM, Manzoor MF, Wei W, Sarpong F, Wang X. Lipid-soluble vitamins from dairy products: Extraction, purification, and analytical techniques. Food Chem 2021; 373:131436. [PMID: 34740052 DOI: 10.1016/j.foodchem.2021.131436] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2021] [Revised: 10/14/2021] [Accepted: 10/17/2021] [Indexed: 12/12/2022]
Abstract
Milk and dairy products are considered as essential sources of lipid-soluble vitamins (LSVs) for human nutrition. Due to the lower concentrations, complexity, and instability of LSVs during extraction, their quantification remains challenging. This review focus on advances in the extraction and quantification of LSVs from different dairy products. Saponification, and liquid-liquid (LLE), solid-phase (SPE), and supercritical fluid (SFE) extraction methods, as well as dispersive liquid-liquid microextraction, are the most common techniques. Liquid chromatography-mass spectrophotometry (LC-MS) has unique advantages for LSVs determination and quantification due to its high sensitivity and specificity.
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Affiliation(s)
- Emad Karrar
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China
| | - Isam A Mohamed Ahmed
- Department of Food Science and Nutrition, College of Food and Agricultural Sciences, King Saud University, Riyadh 11451, Saudi Arabia
| | - Muhammad Faisal Manzoor
- School of Food and Biological Engineering, Jiangsu University, 301 Xuefu Road, Zhenjiang 212013, Jiangsu, People's Republic of China
| | - Wei Wei
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China
| | - Frederick Sarpong
- Value Addition Division, Oil Palm Research Institute, Council for Scientific and Industrial Research, Kade, Ghana
| | - Xingguo Wang
- National Engineering Research Center for Functional Food, Collaborative Innovation Center of Food Safety and Quality Control in Jiangsu Province, School of Food Science and Technology, Jiangnan University, Wuxi 214122, Jiangsu, People's Republic of China.
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Castro-Vázquez L, Rodríguez-Robledo V, Plaza-Oliver M, Santander-Ortega MJ, Victoria Lozano M, González J, Villaseca N, Marcos P, Mar Arroyo-Jiménez M. Pressurized liquid extraction to obtain chia seeds oils extracts enriched in tocochromanols. Nanoemulsions approaches to preserve the antioxidant potential. Journal of Food Science and Technology 2021; 58:4034-4044. [PMID: 34471327 DOI: 10.1007/s13197-020-04866-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Revised: 09/23/2020] [Accepted: 10/16/2020] [Indexed: 01/24/2023]
Abstract
The objective of this study was to use accelerated-solvent-extraction to achieve antioxidant extracts from chia seeds oils, enriched in tocopherols and tocotrienols, namely tocochromanols. Nanotechnology applications have been also incorporated to develop an innovative formulation of chia seeds oil nanoemulsion that preserve its antioxidant potential after conditions of oxidative stress. Chia seeds oils proved to be a valuable source of tocochromanols, from 568.84 to 855.98 μg g-1, depending on the geographical provenance. Quantitative data obtained by LC-DAD-ESI-MS/MS showed outstanding levels of γ-Tocopherol, over 83%, followed far behind by Tocopherols-(α, β, δ) and Tocotrienols-(α, β, δ, γ)-tocotrienols. The characteristic tocochromanols fingerprint of chia seeds oils was positively correlated with the FRAP and DPPH antioxidant activity of the extracts (between 18.81 and 138.48 mg Trolox/g). Formulation of the Chia seeds oils as nanoemulsions did not compromised the antioxidant properties of fresh extracts. Interestingly, nanoemulsions retained about the 80% of the initial antioxidant capacity after UV-induced stress, where the non-emulsified oils displayed a remarkable reduction (50-60%) on its antioxidant capacity under the same conditions. These antioxidant chia seeds formulations can constitute a promising strategy to vectorizing vitamin E isomers, in order to be used for food fortification, natural additives and to increase the self-life of food products during packing.
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Affiliation(s)
- Lucía Castro-Vázquez
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
| | - Virginia Rodríguez-Robledo
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
| | - María Plaza-Oliver
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
| | - Manuel J Santander-Ortega
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
| | - M Victoria Lozano
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
| | - Joaquín González
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
| | - Noemí Villaseca
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
| | - Pilar Marcos
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
| | - M Mar Arroyo-Jiménez
- Regional Centre of Biomedical Research (CRIB), University of Castilla-La Mancha (UCLM), Avda. Doctor Jose María Sanchez Ibañez. S/N C.P, 02008 Albacete, Spain
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Puetz A, Morel Espinosa M, Watson C, Blount BC, Valentín-Blasini L. Development, Validation, and Application of a Novel Method for the Analysis of Vitamin E Acetate and Other Tocopherols in Aerosol Emissions of E-Cigarettes, or Vaping Products Associated With Lung Injury. Front Chem 2021; 9:730954. [PMID: 34422773 PMCID: PMC8374938 DOI: 10.3389/fchem.2021.730954] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/25/2021] [Accepted: 07/26/2021] [Indexed: 11/22/2022] Open
Abstract
E-cigarette, or vaping, product (EVP) use has increased dramatically in the United States over the last 4 years, particularly in youth and young adults. Little information is available on the chemical contents of these products. Typically, EVPs contain an active ingredient such as nicotine, CBD, or THC dissolved in a suitable solvent that facilitates aerosol generation. One EVP solvent, vitamin E acetate (VEA), has been measured in EVP liquids associated with lung injury. However, no validated analytical methods for measuring VEA in the aerosol from these devices was previously available. Therefore, we developed a high throughput isotope dilution LC-MS/MS method to simultaneously measure VEA and three other related tocopherols in aerosolized EVP samples. The assay was precise, with VEA repeatability ranging from 4.0 to 8.3% and intermediate precision ranging from 2.5 to 6.7%. Similar precision was obtained for the three other tocopherols measured. The LODs for the four analytes ranged from 8.85 × 10−6 to 2.28 × 10−5 μg analyte per mL of aerosol puff volume, and calibration curves were linear (R2 > 0.99). This method was used to analyze aerosol emissions of 147 EVPs associated with EVALI case patients. We detected VEA in 46% of the case-associated EVPs with a range of 1.87 × 10−4–74.1 µg per mL of aerosol puff volume and mean of 25.1 µg per mL of aerosol puff volume. Macro-levels of VEA (>0.1% w/w total aerosol particulate matter) were not detected in nicotine or cannabidiol (CBD) products; conversely 71% of the EVALI associated tetrahydrocannabinol (THC) products contained macro-levels of VEA. Trace levels of other tocopherol isoforms were detected at lower rates and concentrations (α-tocopherol: 41% detected, mean 0.095 µg analyte per mL of aerosol puff volume; γ-tocopherol: 5% detected, mean 0.0193 µg analyte per mL of aerosol puff volume; δ-tocopherol: not detected). Our results indicate that VEA can be efficiently transferred to aerosol by EVALI-associated EVPs vaped using a standardized protocol.
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Affiliation(s)
- Andrew Puetz
- Tobacco and Volatiles Branch, Division of Laboratory Sciences, National Center for Environmental Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Maria Morel Espinosa
- Tobacco and Volatiles Branch, Division of Laboratory Sciences, National Center for Environmental Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Clifford Watson
- Tobacco and Volatiles Branch, Division of Laboratory Sciences, National Center for Environmental Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Benjamin C Blount
- Tobacco and Volatiles Branch, Division of Laboratory Sciences, National Center for Environmental Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, United States
| | - Liza Valentín-Blasini
- Tobacco and Volatiles Branch, Division of Laboratory Sciences, National Center for Environmental Health, U.S. Centers for Disease Control and Prevention, Atlanta, GA, United States
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Cuevas MS, Capellini MC, Rodrigues CEC, Meirelles AJA. Preservation of minor components and deacidification of rice bran oil using strong anionic resin. J FOOD PROCESS PRES 2020. [DOI: 10.1111/jfpp.14722] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Affiliation(s)
- Maitê S. Cuevas
- EXTRAE, Departamento de Engenharia de Alimentos (DEA‐FEA) Universidade de Campinas (UNICAMP) Campinas Brazil
- LES, Departamento de Engenharia de Alimentos (ZEA‐FZEA) Universidade de Sao Paulo (USP) Pirassununga Brazil
| | - Maria Carolina Capellini
- LES, Departamento de Engenharia de Alimentos (ZEA‐FZEA) Universidade de Sao Paulo (USP) Pirassununga Brazil
| | | | - Antonio J. A. Meirelles
- EXTRAE, Departamento de Engenharia de Alimentos (DEA‐FEA) Universidade de Campinas (UNICAMP) Campinas Brazil
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Yin S, Yang Y, Zhang J, Li Y, Wu L, Sun C. A Novel Ionic Liquid-Based Liquid-Liquid Microextraction Combined with High Performance Liquid Chromatography for Simultaneous Determination of Eight Vitamin E Isomers in Human Serum. J AOAC Int 2020; 103:989-996. [PMID: 33241334 DOI: 10.1093/jaoacint/qsz039] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2019] [Revised: 11/17/2019] [Accepted: 12/03/2019] [Indexed: 11/14/2022]
Abstract
BACKGROUND Vitamin E deficiencies are prevalent around the world and have become one of the major public health issues. It is necessary to determine their levels in human serum for routine clinical practice. OBJECTIVE In this study, a simple and green ionic liquid-based (IL)vortex-assisted (VA) liquid-liquid microextraction (LLME) combined with HPLC was developed for simultaneous determination of eight vitamin E isomers in human serum. METHODS The IL, 1-octyl-methylimidazolium trifluoromethanesulfonate ([OMIM]OTf), was added into the diluted sample and vortexed to form a cloudy solution. After centrifugation, the IL phase was collected for HPLC analysis. The separation was accomplished on a Phenomenex Luna-C18 column (250 mm × 4.6 mm, 5 μm) and the column temperature was 30°C. The mobile phase was methanol/acetonitrile (80 + 20, v/v) and the flow rate was 0.7 mL/min. A fluorescence detector was used for the simultaneous detection of eight vitamin E isomers, and the detection wavelength was set at 290/327 nm. The LLME procedure can be completed within 10 min without using any organic solvent. The parameters affecting the extraction efficiencies were optimized, including the type and volume of the ILs, dispersive solvent, vortex time, and salt addition. RESULTS Under the optimal conditions, limits of detection were 0.857-4.16 ng/mL. Acceptable recoveries ranging from 80.1% to 103% were achieved, with relative standard deviations less than 13.0%. The proposed method was successfully applied to the detection of eight vitamin E isomers in human serum samples. CONCLUSIONS This method is simple, fast, environment-friendly, cheap, and has similar linear ranges, sensitivities, accuracy, and precision as those reported chromatographic methods. HIGHLIGHTS The IL, [OMIM]OTf, was chosen as the green extractant of LLME for vitamin E extraction because of its strong adsorption property for vitamin E isomers. An IL-VA-LLME method has been developed for the analysis of 8 vitamin E isomers. The established method was successfully applied to the analysis of 8 vitamin E isomers in human serum samples.
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Affiliation(s)
- Shuo Yin
- Sichuan University, West China School of Public Health and West China Fourth Hospital, Chengdu 610041, China
| | - Yi Yang
- Southwest Medical University, School of Public Health, Luzhou 646000, China
| | - Jing Zhang
- Sichuan University, West China School of Public Health and West China Fourth Hospital, Chengdu 610041, China
| | - Yongxin Li
- Sichuan University, West China School of Public Health and West China Fourth Hospital, Chengdu 610041, China
- Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of Sichuan, Chengdu 610041, China
| | - Ling Wu
- Sichuan University, West China School of Public Health and West China Fourth Hospital, Chengdu 610041, China
| | - Chengjun Sun
- Sichuan University, West China School of Public Health and West China Fourth Hospital, Chengdu 610041, China
- Provincial Key Laboratory for Food Safety Monitoring and Risk Assessment of Sichuan, Chengdu 610041, China
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Liang X, Nielsen NJ, Christensen JH. Selective pressurized liquid extraction of plant secondary metabolites: Convallaria majalis L. as a case. Anal Chim Acta X 2020; 4:100040. [PMID: 33117986 PMCID: PMC7587049 DOI: 10.1016/j.acax.2020.100040] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2019] [Revised: 01/31/2020] [Accepted: 02/19/2020] [Indexed: 12/31/2022] Open
Abstract
A fast and efficient selective pressurized liquid extraction (sPLE) method was developed to extract secondary metabolites from complex plant matrix. Convallaria majalis L., a plant producing toxic steroids, was used as proof-of-concept. The method was optimized in the aspects of preheating, dispersant, extraction temperature and solvent, and the use of C18 as in-cell cleanup sorbent. Eight authentic natural steroids with diverse sugar moieties and hydrophobicities were selected as reference analytes and spiked to 0.1 g dried leaves. The extraction performance was evaluated based on the analytes' stability, recovery, matrix effect in the electrospray interface and the level of co-extractives. With the optimal method, the extraction was finished in 10 min. A colorless extract was obtained with recoveries ranging from 63% to 107% and absolute matrix effects ranging from 3% to 27%. The optimized method was validated by extracting 0.1 g, 0.2 g and 0.4 g spiked plant samples; method accuracy and precision were assessed by recoveries and relative standard deviations of the combined extraction-analysis workflow. The method was also tested on soil samples and indicated its suitability for measuring secondary metabolites in multiple environmental matrices. To our knowledge, this is the first time sPLE has been reported to extract plant secondary metabolites from a complex plant matrix, with satisfactory recoveries and low matrix effects. This is also the first time (s)PLE has been reported to extract plant secondary metabolites from soil. We envision the method be coupled with liquid chromatography-electrospray ionization-high resolution mass spectrometry in a standard metabolomics workflow to facilitate plant metabolomics studies.
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Affiliation(s)
- Xiaomeng Liang
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark
| | - Nikoline Juul Nielsen
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark
| | - Jan H. Christensen
- Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark
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Isolation and Determination of Tocopherols and Tocotrienols from the Seed of Capparis Ovata Grown in Turkey by Reversed-Phase High-Performance Liquid Chromatography. Chromatographia 2019. [DOI: 10.1007/s10337-019-03816-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Bartosińska E, Jacyna J, Borsuk-De Moor A, Kaliszan M, Kondej K, Jankau J, Renkielska A, Kruszewski WJ, Markuszewski MJ, Siluk D. Determination of tocopherols and tocotrienols in human breast adipose tissue with the use of high performance liquid chromatography-fluorescence detection. Biomed Chromatogr 2018; 32:e4361. [PMID: 30114327 DOI: 10.1002/bmc.4361] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2018] [Revised: 07/02/2018] [Accepted: 08/06/2018] [Indexed: 12/21/2022]
Abstract
Tocopherols and tocotrienols have been extensively studied owing to their anticancer potential, especially against breast cancer. Therefore, the aim of this study was to quantitatively determine tocochromanols in human breast adipose tissue with the use of HPLC-FLD. The sample preparation procedure included homogenization and solvent extraction with isopropanol-ethanol-0.1% formic acid mixture prior to solid-phase extraction. After implementation of central composite design, satisfactory separation of all eight target compounds was achieved within 10.5 min. Chromatographic runs were carried out with the use of a naphthylethyl chromatographic column with methanol-water mixture (89:11, v/v) as the mobile phase. Fluorescence detection of tocochromanols was performed with excitation and emission wavelengths 298 and 330 nm, respectively. The method was validated in terms of linearity, carryover, recovery, precision, accuracy and stability. Extraction yield was also determined for accurate evaluation of vitamin E content in human breast adipose tissue samples. Finally, concentrations of particular tocochromanols compounds were assessed in human breast adipose tissue samples obtained from 99 patients, including women with breast cancer, healthy volunteers and deceased women who had died as a result of accidents. The raw data was transformed according to the newly developed equation for accurate estimation of the concentrations of tocochromanols in breast adipose tissue samples. Results obtained in the study indicated that the proposed analytical assay could be useful in breast cancer research.
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Affiliation(s)
- Ewa Bartosińska
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Julia Jacyna
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Agnieszka Borsuk-De Moor
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Michał Kaliszan
- Department of Forensic Medicine, Medical University of Gdańsk, Dębowa 23, 80-204, Gdańsk, Poland
| | - Karolina Kondej
- Department of Plastic Surgery, Medical University of Gdańsk, M. Skłodowska-Curie 3a, 80-210, Gdańsk, Poland
| | - Jerzy Jankau
- Department of Plastic Surgery, Medical University of Gdańsk, M. Skłodowska-Curie 3a, 80-210, Gdańsk, Poland
| | - Alicja Renkielska
- Department of Plastic Surgery, Medical University of Gdańsk, M. Skłodowska-Curie 3a, 80-210, Gdańsk, Poland
| | - Wiesław Janusz Kruszewski
- Department of Oncological Surgery, Gdynia Centre of Oncology, Maritime Hospital in Gdynia, Powstania Styczniowego 1, 81-519, Gdynia, Poland.,Division of Propedeutics of Oncology, Medical University of Gdańsk, Powstania Styczniowego 9b, 81-519, Gdynia, Poland
| | - Michał Jan Markuszewski
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Danuta Siluk
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
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Bartosińska E, Borsuk-De Moor A, Siluk D, Markuszewski MJ, Wiczling P. Ionization of tocopherols and tocotrienols in atmospheric pressure chemical ionization. RAPID COMMUNICATIONS IN MASS SPECTROMETRY : RCM 2018; 32:919-927. [PMID: 29578620 DOI: 10.1002/rcm.8124] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 03/15/2018] [Accepted: 03/16/2018] [Indexed: 06/08/2023]
Abstract
RATIONALE Tocopherols and tocotrienols are chemical compounds insusceptible to the ionization process under atmospheric pressure conditions. Therefore, the selection of the optimal ion source settings for their quantification requires special attention. The aim of this study was to analyse the influence of the APCI source parameters on the response of tocochromanols and two related compounds. METHODS Standard solutions of target compounds were injected on the high-performance liquid chromatography/atmospheric pressure chemical ionization tandem mass spectrometry (HPLC/APCI-MS/MS) system separately and analysed with 30 randomly selected ion source settings. The obtained responses were modelled by multivariate linear regression with least absolute shrinkage and selection operator. The developed models were used to choose the best APCI conditions. RESULTS Multivariate linear models were built for eight tocochromanols, trolox and BHT. The APCI settings derived from the models did not increase the peak areas obtained for T and T3 during the ionization process. Ionization conditions based on models for trolox and BHT improved analytical responses by 12-36% and 4-32%, respectively. The application of the ion source settings optimal for trolox and BHT to tocochromanols did not result in better analytical responses. CONCLUSIONS The ionization pattern of tocochromanols in the APCI source is problematic and should be further investigated. Modelling methodology for response improvement presented in this study can be applied in similar studies.
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Affiliation(s)
- Ewa Bartosińska
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Agnieszka Borsuk-De Moor
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Danuta Siluk
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Michał J Markuszewski
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
| | - Paweł Wiczling
- Department of Biopharmaceutics and Pharmacodynamics, Medical University of Gdańsk, Hallera 107, 80-416, Gdańsk, Poland
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Bartosińska E, Jacyna J, Borsuk-De Moor A, Kaliszan M, Kruszewski WJ, Jankowski Z, Siluk D. HPLC-APCI-MS/MS method development and validation for determination of tocotrienols in human breast adipose tissue. Talanta 2018; 176:108-115. [DOI: 10.1016/j.talanta.2017.08.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2017] [Revised: 07/27/2017] [Accepted: 08/01/2017] [Indexed: 01/12/2023]
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Koistinen VM, Hanhineva K. Mass spectrometry-based analysis of whole-grain phytochemicals. Crit Rev Food Sci Nutr 2017; 57:1688-1709. [PMID: 26167744 DOI: 10.1080/10408398.2015.1016477] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
Whole grains are a rich source of several classes of phytochemicals, such as alkylresorcinols, benzoxazinoids, flavonoids, lignans, and phytosterols. A high intake of whole grains has been linked to a reduced risk of some major noncommunicable diseases, and it has been postulated that a complex mixture of phytochemicals works in synergy to generate beneficial health effects. Mass spectrometry, especially when coupled with liquid chromatography, is a widely used method for the analysis of phytochemicals owing to its high sensitivity and dynamic range. In this review, the current knowledge of the mass spectral properties of the most important classes of phytochemicals found in cereals of common wheat, barley, oats, and rye is discussed.
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Affiliation(s)
- Ville Mikael Koistinen
- a Institute of Public Health and Clinical Nutrition, University of Eastern Finland , Kuopio , Finland
| | - Kati Hanhineva
- a Institute of Public Health and Clinical Nutrition, University of Eastern Finland , Kuopio , Finland
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Fanali C, D'Orazio G, Fanali S, Gentili A. Advanced analytical techniques for fat-soluble vitamin analysis. Trends Analyt Chem 2017. [DOI: 10.1016/j.trac.2016.12.001] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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15
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Ansolin M, de Souza PT, de Almeida Meirelles AJ, Batista EAC. Tocopherols and Tocotrienols: an Adapted Methodology by UHPLC/MS Without Sample Pretreatment Steps. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-016-0768-z] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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16
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Corn germ-bran oils extracted with alcoholic solvents: Extraction yield, oil composition and evaluation of protein solubility of defatted meal. FOOD AND BIOPRODUCTS PROCESSING 2016. [DOI: 10.1016/j.fbp.2016.06.009] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
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17
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Saini RK, Keum YS. Tocopherols and tocotrienols in plants and their products: A review on methods of extraction, chromatographic separation, and detection. Food Res Int 2016. [DOI: 10.1016/j.foodres.2016.01.025] [Citation(s) in RCA: 98] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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18
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GC-MS and LC-MS approaches for determination of tocopherols and tocotrienols in biological and food matrices. J Pharm Biomed Anal 2016; 127:156-69. [PMID: 26964480 DOI: 10.1016/j.jpba.2016.02.051] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/02/2015] [Revised: 02/17/2016] [Accepted: 02/28/2016] [Indexed: 11/20/2022]
Abstract
Tocopherols and tocotrienols, widely described as vitamin E derivatives, have been proven to take part in a number of important biological functions. Among them, antioxidant properties had been investigated and documented in the literature. Since tocochromanols have revealed their plausible beneficial impact on several pathological processes, such as cancerogenesis or cognitive impairment diseases, there is a growing interest in quantitative determination of these compounds in biological fluids, tissues and plant organs. However, due to vitamin E chemical features, such as lipophilic and non-polar characteristics, quantitative determination of the compounds seems to be problematic. In this paper we present current analytical approaches in tocopherols and tocotrienols determination in biological and food matrices with the use of chromatographic techniques, especially gas chromatography (GC) and high performance liquid chromatography (HPLC) coupled with mass spectrometry. Derivatization techniques applied for GC-MS analysis in the case of tocol derivatives, especially silylation and acylation, are described. Significant attention is paid to ionization process of tocopherols and tocotrienols.
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Tang Y, Li X, Chen PX, Zhang B, Liu R, Hernandez M, Draves J, Marcone MF, Tsao R. Assessing the Fatty Acid, Carotenoid, and Tocopherol Compositions of Amaranth and Quinoa Seeds Grown in Ontario and Their Overall Contribution to Nutritional Quality. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2016; 64:1103-1110. [PMID: 26760897 DOI: 10.1021/acs.jafc.5b05414] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Various fatty acids, tocopherols, carotenoids, and their respective antioxidant contributions in 7 amaranth seed and 11 quinoa seed samples along with a new evaluation method are reported. The lipid yield was 6.98-7.22% in amaranth seeds and 6.03-6.74% in quinoa seeds, with unsaturated fatty acids (UFAs) being the predominant fatty acids, 71.58-72.44% in amaranth seeds and 81.44-84.49% in quinoa seeds, respectively. Carotenoids, mainly lutein and zeaxanthin, are confirmed for the first time in amaranth seeds, while β-carotene is reported first in quinoa seeds. The predominant tocopherols in amaranth seeds are δ- and α-tocopherol, whereas γ- and α-tocopherol are the primary tocopherols in quinoa seeds. UFAs, carotenoids, and tocopherols showed good correlation with antioxidant activity. All of the amaranth seeds demonstrated lower overall lipophilic quality than quinoa seeds, with the AS1 and QS10 cultivars providing the highest scores for amaranth and quinoa seeds, respectively. Results from this study will contribute to developing quinoa seeds and related functional foods with increased benefits.
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Affiliation(s)
- Yao Tang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, People's Republic of China
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada
| | - Xihong Li
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, People's Republic of China
| | - Peter X Chen
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada
- Department of Food Science, University of Guelph , 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Bing Zhang
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada
- State Key Laboratory of Food Science and Technology, Nanchang University , Nanchang, Jiangxi 330047, People's Republic of China
| | - Ronghua Liu
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada
| | - Marta Hernandez
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada
| | - Jamie Draves
- Katan Kitchens , 62 Grist Mill Drive, Georgetown, Ontario L7G 6C1, Canada
| | - Massimo F Marcone
- Department of Food Science, University of Guelph , 50 Stone Road East, Guelph, Ontario N1G 2W1, Canada
| | - Rong Tsao
- Guelph Research and Development Centre, Agriculture and Agri-Food Canada , 93 Stone Road West, Guelph, Ontario N1G 5C9, Canada
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20
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Determination of tocopherols and sitosterols in seeds and nuts by QuEChERS-liquid chromatography. Food Chem 2016; 192:825-30. [DOI: 10.1016/j.foodchem.2015.07.083] [Citation(s) in RCA: 43] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2014] [Revised: 07/10/2015] [Accepted: 07/20/2015] [Indexed: 11/21/2022]
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21
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Gangopadhyay N, Hossain MB, Rai DK, Brunton NP. A Review of Extraction and Analysis of Bioactives in Oat and Barley and Scope for Use of Novel Food Processing Technologies. Molecules 2015; 20:10884-909. [PMID: 26076110 PMCID: PMC6272431 DOI: 10.3390/molecules200610884] [Citation(s) in RCA: 94] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Revised: 05/25/2015] [Accepted: 06/05/2015] [Indexed: 01/01/2023] Open
Abstract
Oat and barely are cereal crops mainly used as animal feed and for the purposes of malting and brewing, respectively. Some studies have indicated that consumption of oat and barley rich foods may reduce the risk of some chronic diseases such as coronary heart disease, type II diabetes and cancer. Whilst there is no absolute consensus, some of these benefits may be linked to presence of compounds such as phenolics, vitamin E and β-glucan in these cereals. A number of benefits have also been linked to the lipid component (sterols, fatty acids) and the proteins and bioactive peptides in oats and barley. Since the available evidence is pointing toward the possible health benefits of oat and barley components, a number of authors have examined techniques for recovering them from their native sources. In the present review, we summarise and examine the range of conventional techniques that have been used for the purpose of extraction and detection of these bioactives. In addition, the recent advances in use of novel food processing technologies as a substitute to conventional processes for extraction of bioactives from oats and barley, has been discussed.
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Affiliation(s)
- Nirupama Gangopadhyay
- Department of Food BioSciences, Teagasc Food Research Centre Ashtown, Dublin 15, Ireland.
- Food Science and Nutrition, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland.
| | - Mohammad B Hossain
- Department of Food BioSciences, Teagasc Food Research Centre Ashtown, Dublin 15, Ireland.
| | - Dilip K Rai
- Department of Food BioSciences, Teagasc Food Research Centre Ashtown, Dublin 15, Ireland.
| | - Nigel P Brunton
- Food Science and Nutrition, School of Agriculture and Food Science, University College Dublin, Dublin 4, Ireland.
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22
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Tang Y, Li X, Chen PX, Zhang B, Hernandez M, Zhang H, Marcone MF, Liu R, Tsao R. Characterisation of fatty acid, carotenoid, tocopherol/tocotrienol compositions and antioxidant activities in seeds of three Chenopodium quinoa Willd. genotypes. Food Chem 2015; 174:502-8. [DOI: 10.1016/j.foodchem.2014.11.040] [Citation(s) in RCA: 118] [Impact Index Per Article: 13.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/07/2014] [Revised: 09/22/2014] [Accepted: 11/06/2014] [Indexed: 11/16/2022]
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23
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Quantification of tocopherols and tocotrienols in soybean oil by supercritical-fluid chromatography coupled to high-resolution mass spectrometry. Anal Bioanal Chem 2015; 407:5133-42. [DOI: 10.1007/s00216-015-8604-7] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2014] [Revised: 02/19/2015] [Accepted: 02/26/2015] [Indexed: 10/23/2022]
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24
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Antioxidant properties of wheat and rye bran extracts obtained by pressurized liquid extraction with different solvents. J Cereal Sci 2015. [DOI: 10.1016/j.jcs.2014.11.004] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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25
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Ahsan H, Ahad A, Siddiqui WA. A review of characterization of tocotrienols from plant oils and foods. J Chem Biol 2015; 8:45-59. [PMID: 25870713 DOI: 10.1007/s12154-014-0127-8] [Citation(s) in RCA: 73] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2014] [Accepted: 12/21/2014] [Indexed: 10/24/2022] Open
Abstract
Tocotrienols, members of the vitamin E family, are natural compounds found in a number of vegetable oils, wheat germ, barley and certain types of nuts and grains. Vegetable oils provide the best sources of these vitamin E forms, particularly palm oil and rice bran oil contain higher amounts of tocotrienols. Other sources of tocotrienols include grape fruit seed oil, oats, hazelnuts, maize, olive oil, buckthorn berry, rye, flax seed oil, poppy seed oil and sunflower oil. Tocotrienols are of four types, viz. alpha (α), beta (β), gamma (γ) and delta (δ). Unlike tocopherols, tocotrienols are unsaturated and possess an isoprenoid side chain. A number of researchers have developed methods for the extraction, analysis, identification and quantification of different types of vitamin E compounds. This article constitutes an in-depth review of the chemistry and extraction of the unsaturated vitamin E derivatives, tocotrienols, from various sources using different methods. This review article lists the different techniques that are used in the characterization and purification of tocotrienols such as soxhlet and solid-liquid extractions, saponification method, chromatography (thin layer, column chromatography, gas chromatography, supercritical fluid, high performance), capillary electrochromatography and mass spectrometry. Some of the methods described were able to identify one form or type while others could analyse all the analogues of tocotrienol molecules. Hence, this article will be helpful in understanding the various methods used in the characterization of this lesser known vitamin E variant.
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Affiliation(s)
- Haseeb Ahsan
- Department of Biochemistry, Faculty of Dentistry, Jamia Millia Islamia, New Delhi, 110025 India
| | - Amjid Ahad
- Lipid Metabolism Laboratory, Department of Biochemistry, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, 110062 India
| | - Waseem A Siddiqui
- Lipid Metabolism Laboratory, Department of Biochemistry, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, 110062 India ; Lipid Metabolism Laboratory, Department of Biochemistry, Faculty of Science, Jamia Hamdard (Hamdard University), New Delhi, 110062 India
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26
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Tang Y, Li X, Chen PX, Zhang B, Hernandez M, Zhang H, Marcone MF, Liu R, Tsao R. Lipids, tocopherols, and carotenoids in leaves of amaranth and quinoa cultivars and a new approach to overall evaluation of nutritional quality traits. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2014; 62:12610-12619. [PMID: 25465272 DOI: 10.1021/jf5046377] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Composition of lipophilic phytochemicals including fatty acids, tocopherols, and carotenoids in leaves of 6 quinoa and 14 amaranth cultivars was analyzed. The oil yields in quinoa and amaranth leaves were only 2.72-4.18%, which contained mainly essential fatty acids and had a highly favorable ω-3/ω-6 ratio (2.28-3.89). Pro-vitamin A carotenoids, mainly α- and β-carotenes, and xanthophylls, predominantly lutein and violaxanthin, were found in all samples. The primary tocopherol isomers present in both quinoa and amaranth leaves were α- and β-tocopherols. Added to the discussion on the lipophilic nutrients was the normalization of ω-3/ω-6 ratio, α-tocopherol equivalents, and carotenoids, in an attempt to establish a novel system for evaluation of the overall quality attributes of lipophilic nutrients (NQ value). The NQ value, but not the individual components, was highly correlated with all the antioxidant activities, supporting the ranking order of the potential nutritional quality of quinoa and amaranth leaves based on this new method.
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Affiliation(s)
- Yao Tang
- Key Laboratory of Food Nutrition and Safety, Ministry of Education of China, Tianjin University of Science and Technology , Tianjin 300457, China
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Wong YF, Makahleh A, Saad B, Ibrahim MNM, Rahim AA, Brosse N. UPLC method for the determination of vitamin E homologues and derivatives in vegetable oils, margarines and supplement capsules using pentafluorophenyl column. Talanta 2014; 130:299-306. [PMID: 25159413 DOI: 10.1016/j.talanta.2014.07.021] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/05/2014] [Revised: 07/07/2014] [Accepted: 07/08/2014] [Indexed: 11/17/2022]
Abstract
A sensitive and rapid reversed-phase ultra performance liquid chromatographic (UPLC) method for the simultaneous determination of tocopherols (α-, β-, γ-, δ-), tocotrienols (α-, β-, γ-, δ-), α-tocopherol acetate and α-tocopherol nicotinate is described. The separation was achieved using a Kinetex pentafluorophenyl (PFP) column (150 × 2.1mm, 2.6 µm) with both photodiode array (PDA) and fluorescence (FL) detectors that were connected in series. Column was thermostated at 42°C. Under a gradient system consisting of methanol and water at a constant flow rate of 0.38 mL min(-1), all the ten analytes were well separated in less than 9.5 min. The method was validated in terms of linearity, limits of detection and quantitation, precision and recoveries. Calibration curves of the ten compounds were well correlated (r(2)>0.999) within the range of 100 to 25,000 μg L(-1) for α-tocopherol acetate and α-tocopherol nicotinate, 10 to 25,000 μg L(-1) for α-tocotrienol and 5 to 25,000 μg L(-1) for the other components. The method is simple and sensitive with detection limits (S/N, 3) of 1.0 to 3.0 μg L(-1) (FL detection) and 30 to 74 μg L(-1) (PDA detection). Relative standard deviations for intra- and inter-day retention times (<1%) and peak areas (≤ 4%) were obtained. The method was successfully applied to the determination of vitamin E in vegetable oils (extra virgin olive, virgin olive, pomace olive, blended virgin and refined olive, sunflower, soybean, palm olein, carotino, crude palm, walnut, rice bran and grape seed), margarines and supplements.
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Affiliation(s)
- Yong Foo Wong
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Ahmad Makahleh
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Bahruddin Saad
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia.
| | | | - Afidah Abdul Rahim
- School of Chemical Sciences, Universiti Sains Malaysia, 11800 Penang, Malaysia
| | - Nicolas Brosse
- Laboratoire d'Etude et de Recherche sur le MAteriau Bois, Faculté des Sciences et Techniques, Nancy-Université, Bld des Aiguillettes, F-54500 Vandoeuvre-lès-Nancy, France
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28
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Tsochatzis ED, Tzimou-Tsitouridou R. Validated RP-HPLC Method for Simultaneous Determination of Tocopherols and Tocotrienols in Whole Grain Barley Using Matrix Solid-Phase Dispersion. FOOD ANAL METHOD 2014. [DOI: 10.1007/s12161-014-9904-9] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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29
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Preparation and evaluation of a novel monolithic column containing double octadecyl chains for reverse-phase micro high performance liquid chromatography. J Chromatogr A 2014; 1345:174-81. [DOI: 10.1016/j.chroma.2014.04.036] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/25/2014] [Revised: 04/09/2014] [Accepted: 04/10/2014] [Indexed: 12/28/2022]
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30
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Viñas P, Pastor-Belda M, Campillo N, Bravo-Bravo M, Hernández-Córdoba M. Capillary liquid chromatography combined with pressurized liquid extraction and dispersive liquid–liquid microextraction for the determination of vitamin E in cosmetic products. J Pharm Biomed Anal 2014; 94:173-9. [DOI: 10.1016/j.jpba.2014.02.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2013] [Accepted: 02/03/2014] [Indexed: 01/30/2023]
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31
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Viñas P, Bravo-Bravo M, López-García I, Pastor-Belda M, Hernández-Córdoba M. Pressurized liquid extraction and dispersive liquid-liquid microextraction for determination of tocopherols and tocotrienols in plant foods by liquid chromatography with fluorescence and atmospheric pressure chemical ionization-mass spectrometry detection. Talanta 2013; 119:98-104. [PMID: 24401390 DOI: 10.1016/j.talanta.2013.10.053] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 10/14/2013] [Accepted: 10/20/2013] [Indexed: 11/29/2022]
Abstract
Pressurized liquid extraction (PLE) and dispersive liquid-liquid microextraction (DLLME) were used to isolate and preconcentrate tocopherols and tocotrienols from plant foods. The Taguchi experimental method was used to optimize the six factors (three levels for each factor), affecting DLLME, namely: carbon tetrachloride volume, methanol volume, aqueous sample volume, pH of sample, sodium chloride concentration and time of the centrifugation step. The influencing parameters selected were 2 mL of methanol:isopropanol (1:1) (disperser solvent), 150 µL carbon tetrachloride (extraction solvent) and 10 mL aqueous solution. The organic phase was injected into reversed-phase liquid chromatography (LC) with an isocratic mobile phase composed of an 85:15 (v/v) methanol:water mixture and a pentafluorophenyl stationary phase. Detection was carried out using both fluorescence and atmospheric pressure chemical ionization mass spectrometry (APCI-MS) in negative ion mode. Quantification was carried out by the standard addition method. Detection limits were in the range 0.2-0.3 ng mL(-1) for the vitamers with base-line resolution. The recoveries obtained using the optimized DLLME were in the 90-108% range, with RSDs lower than 6.7%. The APCI-MS spectra, in combination with fluorescence spectra, permitted the correct identification of compounds in the vegetable and fruit samples. The method was validated according to international guidelines and using two certified reference materials.
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Affiliation(s)
- Pilar Viñas
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, E-30071 Murcia, Spain
| | - María Bravo-Bravo
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, E-30071 Murcia, Spain
| | - Ignacio López-García
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, E-30071 Murcia, Spain
| | - Marta Pastor-Belda
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, E-30071 Murcia, Spain
| | - Manuel Hernández-Córdoba
- Department of Analytical Chemistry, Faculty of Chemistry, Regional Campus of International Excellence "Campus Mare Nostrum", University of Murcia, E-30071 Murcia, Spain.
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Effect of mobile phase on resolution of the isomers and homologues of tocopherols on a triacontyl stationary phase. Anal Bioanal Chem 2013; 405:9285-95. [DOI: 10.1007/s00216-013-7336-9] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 08/14/2013] [Accepted: 08/31/2013] [Indexed: 10/26/2022]
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33
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Development of a Dispersive Liquid–Liquid Microextraction Method for the Determination of α-Tocopherol in Pigmented Wheat by High-Performance Liquid Chromatography. FOOD ANAL METHOD 2013. [DOI: 10.1007/s12161-013-9592-x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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34
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Lachman J, Hejtmánková K, Kotíková Z. Tocols and carotenoids of einkorn, emmer and spring wheat varieties: Selection for breeding and production. J Cereal Sci 2013. [DOI: 10.1016/j.jcs.2012.05.011] [Citation(s) in RCA: 57] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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35
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Liu S, Xie Q, Cao J, Song P, Chen J, Bai W. Rapid determination of α-tocopherol in cereal grains using dispersive liquid-liquid microextraction followed by HPLC. J Sep Sci 2013; 36:1135-41. [DOI: 10.1002/jssc.201200988] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2012] [Revised: 12/18/2012] [Accepted: 12/19/2012] [Indexed: 11/06/2022]
Affiliation(s)
- Shuhui Liu
- Department of Chemistry, College of Science; Northwest A&F University; Yangling Shaanxi China
- State Key Laboratory of Crop Stress Biology in Arid Areas; Yangling China
| | - Qilong Xie
- Department of Chemistry, College of Science; Northwest A&F University; Yangling Shaanxi China
| | - Jiangping Cao
- Department of Chemistry, College of Science; Northwest A&F University; Yangling Shaanxi China
| | - Pingping Song
- Department of Chemistry, College of Science; Northwest A&F University; Yangling Shaanxi China
| | - Jie Chen
- Department of Chemistry, College of Science; Northwest A&F University; Yangling Shaanxi China
| | - Weiwei Bai
- Department of Chemistry, College of Science; Northwest A&F University; Yangling Shaanxi China
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Irakli MN, Samanidou VF, Papadoyannis IN. Optimization and validation of the reversed-phase high-performance liquid chromatography with fluorescence detection method for the separation of tocopherol and tocotrienol isomers in cereals, employing a novel sorbent material. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2012; 60:2076-2082. [PMID: 22324450 DOI: 10.1021/jf204470j] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The separation and determination of tocopherols (Ts) and tocotrienols (T3s) by reversed-phase high-performance liquid chromatography with fluorescence detection has been developed and validated after optimization of various chromatographic conditions and other experimental parameters. Analytes were separated on a PerfectSil Target ODS-3 (250 × 4.6 mm, 3 μm) column filled with a novel sorbent material of ultrapure silica gel. The separation of Ts and T3s was optimized in terms of mobile-phase composition and column temperature on the basis of the best compromise among efficiency, resolution, and analysis time. Using a gradient elution of mobile phase composed of isopropanol/water and 7 °C column temperature, a satisfactory resolution was achieved within 62 min. For the quantitative determination, α-T acetate (50 μg/mL) was used as the internal standard. Detection limits ranged from 0.27 μg/mL (γ-T) to 0.76 μg/mL (γ-T3). The validation of the method was examined performing intraday (n = 5) and interday (n = 3) assays and was found to be satisfactory, with high accuracy and precision results. Solid-phase extraction provided high relative extraction recoveries from cereal samples: 87.0% for γ-T3 and 115.5% for δ-T. The method was successfully applied to cereals, such as durum wheat, bread wheat, rice, barley, oat, rye, and corn.
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Affiliation(s)
- Maria N Irakli
- Cereal Institute, National Agricultural Research Foundation (NAGREF), Thessaloniki, Greece
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37
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Montero O, Ramírez M, Sánchez-Guijo A, González C. Determination of lipoic acid, Trolox methyl ether and tocopherols in human plasma by liquid-chromatography and ion-trap tandem mass spectrometry. Biomed Chromatogr 2012; 26:1228-33. [DOI: 10.1002/bmc.2683] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2011] [Revised: 11/18/2011] [Accepted: 11/18/2011] [Indexed: 11/11/2022]
Affiliation(s)
- Olimpio Montero
- Instituto de Biología y Genética Molecular; Consejo Superior de Investigaciones Científicas and Universidad de Valladolid; Sanz y Fores; s/n, 47003; Valladolid; Spain
| | - María Ramírez
- Departamento de Bioquímica y Biología Molecular y Fisiología, CIBER de Enfermedades Respiratorias; Consejo Superior de Investigaciones Científicas and Universidad de Valladolid; Sanz y Fores; s/n, 47003; Valladolid; Spain
| | - Alberto Sánchez-Guijo
- Instituto de Biología y Genética Molecular; Consejo Superior de Investigaciones Científicas and Universidad de Valladolid; Sanz y Fores; s/n, 47003; Valladolid; Spain
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Wu H, Chen M, Fan Y, Elsebaei F, Zhu Y. Determination of rutin and quercetin in Chinese herbal medicine by ionic liquid-based pressurized liquid extraction–liquid chromatography–chemiluminescence detection. Talanta 2012; 88:222-9. [DOI: 10.1016/j.talanta.2011.10.036] [Citation(s) in RCA: 115] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2011] [Revised: 10/05/2011] [Accepted: 10/16/2011] [Indexed: 11/26/2022]
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Mustafa A, Turner C. Pressurized liquid extraction as a green approach in food and herbal plants extraction: A review. Anal Chim Acta 2011; 703:8-18. [PMID: 21843670 DOI: 10.1016/j.aca.2011.07.018] [Citation(s) in RCA: 488] [Impact Index Per Article: 37.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2011] [Revised: 07/01/2011] [Accepted: 07/02/2011] [Indexed: 11/28/2022]
Abstract
Pressurized liquid extraction is a "green" technology for the extraction of nutraceuticals from foods and herbal plants. This review discusses the extraction principles and the optimization of the extraction parameters that improves the extraction efficiency. The use of different solvent mixtures and other extraction additives to enhance the efficiency of the extraction are discussed. Dynamic mode of extraction in Pressurized liquid extraction, and the use of combined and hyphenated sample preparation and analytical techniques are presented. This work discusses how different studies used Pressurized liquid extraction to enrich phenolic compounds, lignans, carotenoids, oils and lipids, essential oils and other nutraceuticals from foods and herbal plants.
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Affiliation(s)
- Arwa Mustafa
- Center for Analysis and Synthesis, Department of Chemistry, Lund University, Sweden.
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Irakli MN, Samanidou VF, Papadoyannis IN. Development and validation of an HPLC method for the simultaneous determination of tocopherols, tocotrienols and carotenoids in cereals after solid-phase extraction. J Sep Sci 2011; 34:1375-82. [DOI: 10.1002/jssc.201100077] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2011] [Revised: 03/14/2011] [Accepted: 03/14/2011] [Indexed: 11/06/2022]
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41
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Quantitative LC-ESI-MS/MS metabolic profiling method for fatty acids and lipophilic metabolites in fermentation broths from β-lactam antibiotics production. Anal Bioanal Chem 2009; 397:147-160. [DOI: 10.1007/s00216-009-3340-5] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2009] [Revised: 11/20/2009] [Accepted: 11/22/2009] [Indexed: 10/20/2022]
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Engelsen MM, Hansen Å. Tocopherol and Tocotrienol Content in Commercial Wheat Mill Streams. Cereal Chem 2009. [DOI: 10.1094/cchem-86-5-0499] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Merete Møller Engelsen
- University of Copenhagen, Faculty of Life Sciences, Department of Food Science, Quality & Technology, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Åse Hansen
- University of Copenhagen, Faculty of Life Sciences, Department of Food Science, Quality & Technology, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
- Corresponding author. Phone: + 45 35 33 32 41. Fax: + 45 35 33 32 65. E-mail:
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Milagros Delgado-Zamarreño M, Bustamante-Rangel M, Sierra-Manzano S, Verdugo-Jara M, Carabias-Martínez R. Simultaneous extraction of tocotrienols and tocopherols from cereals using pressurized liquid extraction prior to LC determination. J Sep Sci 2009; 32:1430-6. [PMID: 19330788 DOI: 10.1002/jssc.200800707] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Tocopherols and tocotrienols have been simultaneously determined in food samples using a rapid and simple analytical method including pressurized liquid extraction (PLE) and LC with electrochemical detection. Separation was carried out on a Phenomenex Synergi 4 microm Hydro-RP 80A column, using a solution of 2.5 mM acetic acid/sodium acetate in methanol/water (99:1, v/v) as mobile phase at a flow rate of 1.0 mL/min. Column temperature was maintained at 30 degrees C. Detection was performed by coulometric detection at 500 mV except for (beta+gamma)-tocotrienol, in wheat and rye samples, which was at +350 mV. A palm oil containing a relatively large amount of gamma-tocotrienol and lower concentrations of alpha- and delta-tocotrienols and alpha- and gamma-tocopherols was used to provide reference retention times for the tocotrienols. Analyte quantification was performed using the external standard method. The calibration equations of tocopherols were used to quantify both tocopherols and their corresponding tocotrienols. The extraction recoveries obtained using the optimized PLE conditions were in the 80-114% range, with RSDs lower than 15%. The method was successfully applied to the determination of tocotrienols and tocopherols in cereal (wheat, rye, barley, maize and oat) and palm oil samples.
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Affiliation(s)
- M Milagros Delgado-Zamarreño
- Departamento de Química Analítica, Nutrición y Bromatología, Universidad de Salamanca, Salamanca, Spain. mdz@.usal.es
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Alves R, Casal S, Oliveira M. Determination of Vitamin E in Coffee Beans by HPLC Using a Micro-extraction Method. FOOD SCI TECHNOL INT 2009. [DOI: 10.1177/1082013208102695] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
This work reports a solid—liquid micro-extraction method for vitamin E quantification in coffee beans (before and after roasting) with normal-phase HPLC/diode-array/fluorescence detection. The compounds were extracted after protein precipitation and overnight maceration (4°C) in n-hexane, in the presence of butylated hydroxytoluene, using tocol as internal standard. The extraction method precision was inferior to 5% with mean recoveries near 100%. Chromatographic resolution from co-eluting interferences was achieved within 8 min with a 75 × 3.0 mm (3 μm) silica column by using an isocratic elution with n-hexane/ 1,4-dioxane (98 : 2), at a flow rate of 0.7 mL/min. The diode-array detector was a valuable tool in the detection of co-eluting interferences and quantification was based on the fluorescence measurements. Only two vitamers, a- and b-tocopherol, were confirmed and quantified, being the latter generally the major compound in both arabica and robusta coffees. The present analytical method proved to be simple, sensitive, reproducible, accurate, allowing a fast quantification with low organic solvent consumption.
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Affiliation(s)
- R.C. Alves
- REQUIMTE/Serviço de Bromatologia, Faculdade de Farmácia, Universidade do Porto Rua Aníbal Cunha 164, 4099-030 Porto, Portugal,
| | - S. Casal
- REQUIMTE/Serviço de Bromatologia, Faculdade de Farmácia, Universidade do Porto Rua Aníbal Cunha 164, 4099-030 Porto, Portugal
| | - M.B.P.P. Oliveira
- REQUIMTE/Serviço de Bromatologia, Faculdade de Farmácia, Universidade do Porto Rua Aníbal Cunha 164, 4099-030 Porto, Portugal
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Nielsen MM, Hansen Å. Rapid High-Performance Liquid Chromatography Determination of Tocopherols and Tocotrienols in Cereals. Cereal Chem 2008. [DOI: 10.1094/cchem-85-2-0248] [Citation(s) in RCA: 50] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- Merete Møller Nielsen
- University of Copenhagen, Faculty of LIFE Sciences, Department of Food Science, Quality & Technology, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
| | - Åse Hansen
- University of Copenhagen, Faculty of LIFE Sciences, Department of Food Science, Quality & Technology, Rolighedsvej 30, DK-1958 Frederiksberg C, Denmark
- Corresponding author:
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Current awareness in phytochemical analysis. PHYTOCHEMICAL ANALYSIS : PCA 2008; 19:91-98. [PMID: 18340659 DOI: 10.1002/pca.1036] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
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