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Shi T, Wu G, Jin Q, Wang X. Camellia oil adulteration detection using fatty acid ratios and tocopherol compositions with chemometrics. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108565] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
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2
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Xie Q, Xia M, Sun D, Cao J, Xiao Y, Lin M, Hou B, Jia L, Li D. Deep eutectic solvent-based liquid-phase microextraction coupled with reversed-phase high-performance liquid chromatography for determination of α-, β-, γ-, and δ-tocopherol in edible oils. Anal Bioanal Chem 2020; 413:577-584. [PMID: 33205254 DOI: 10.1007/s00216-020-03029-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2020] [Revised: 10/14/2020] [Accepted: 10/26/2020] [Indexed: 10/23/2022]
Abstract
For simultaneous analysis of four fat-soluble tocopherols (α-, β-, γ-, and δ-) in edible oils, an efficient and green method using deep eutectic solvent-based liquid-phase microextraction (DES-LPME) coupled with reversed-phase high-performance liquid chromatography (RP-HPLC) was developed. The DESs formed by different quaternary ammonium salts and ethanol were used as the extractants. Tetrabutylammonium chloride (TBAC)-ethanol DES at a molar ratio of 1:2 achieved the best extraction efficiency. Under the optimized conditions, the detection limits were in the range of 2.1-3.0 ng mL-1. The intra-day and inter-day repeatability were in the ranges of 3.9-5.3% and 4.8-7.1%, respectively, and the recoveries for the real samples varied from 80.7% to 105.4%. The developed method was successfully employed for the determination of all four tocopherol homologues with an RP-HPLC system containing a COSMOSIL π-NAP column in five edible oils collected locally. Graphical abstract.
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Affiliation(s)
- Qilong Xie
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, China
| | - Ming Xia
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, China
| | - Dekui Sun
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, China
| | - Jiangping Cao
- College of Chemistry and Chemical Engineering, Ningxia Normal University, Guyuan, 756000, Ninxia, China
| | - Yong Xiao
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, China
| | - Mingui Lin
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, China
| | - Bo Hou
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, China
| | - Litao Jia
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, China.
| | - Debao Li
- State Key Laboratory of Coal Conversion, Institute of Coal Chemistry, Chinese Academy of Sciences, Taiyuan, 030001, Shanxi, China.
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3
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Wen Y, Xu L, Xue C, Jiang X, Wei Z. Assessing the Impact of Oil Types and Grades on Tocopherol and Tocotrienol Contents in Vegetable Oils with Chemometric Methods. Molecules 2020; 25:molecules25215076. [PMID: 33139648 PMCID: PMC7662938 DOI: 10.3390/molecules25215076] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/07/2020] [Revised: 10/25/2020] [Accepted: 10/28/2020] [Indexed: 12/18/2022] Open
Abstract
The consumption of vegetable oil is an important way for the body to obtain tocols. However, the impact of oil types and grades on the tocopherol and tocotrienol contents in vegetable oils is unclear. In this study, nine types of traditional edible oils and ten types of self-produced new types of vegetable oil were used to analyze eight kinds of tocols. The results showed that the oil types exerted a great impact on the tocol content of traditional edible oils. Soybean oils, corn oils, and rapeseed oils all could be well distinguished from sunflower oils. Both sunflower oils and cotton seed oils showed major differences from camellia oils as well as sesame oils. Among them, rice bran oils contained the most abundant types of tocols. New types of oil, especially sacha inchi oil, have provided a new approach to obtaining oils with a high tocol content. Oil refinement leads to the loss of tocols in vegetable oil, and the degree of oil refinement determines the oil grade. However, the oil grade could not imply the final tocol content in oil from market. This study could be beneficial for the oil industry and dietary nutrition.
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Affiliation(s)
| | | | | | - Xiaoming Jiang
- Correspondence: (X.J.); (Z.W.); Tel.: +86-532-82032597 (Z.W.)
| | - Zihao Wei
- Correspondence: (X.J.); (Z.W.); Tel.: +86-532-82032597 (Z.W.)
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Mishra SK, Belur PD, Iyyaswami R. Use of antioxidants for enhancing oxidative stability of bulk edible oils: a review. Int J Food Sci Technol 2020. [DOI: 10.1111/ijfs.14716] [Citation(s) in RCA: 24] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Sumit Kumar Mishra
- Department of Chemical Engineering National Institute of Technology Karnataka Surathkal India
| | - Prasanna D. Belur
- Department of Chemical Engineering National Institute of Technology Karnataka Surathkal India
| | - Regupathi Iyyaswami
- Department of Chemical Engineering National Institute of Technology Karnataka Surathkal India
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Xu B, You S, Zhou L, Kang H, Luo D, Ma H, Han S. Simultaneous Determination of Free Phytosterols and Tocopherols in Vegetable Oils by an Improved SPE–GC–FID Method. FOOD ANAL METHOD 2019. [DOI: 10.1007/s12161-019-01649-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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6
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Nováková L, Sejkorová M, Smolková K, Plachká K, Švec F. The Benefits of Ultra-High-Performance Supercritical Fluid Chromatography in Determination of Lipophilic Vitamins in Dietary Supplements. Chromatographia 2018. [DOI: 10.1007/s10337-018-3666-2] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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7
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Li J, Bi Y, Sun S, Peng D. Simultaneous analysis of tert-butylhydroquinone, tert-butylquinone, butylated hydroxytoluene, 2-tert-butyl-4-hydroxyanisole, 3-tert-butyl-4-hydroxyanisole, α-tocopherol, γ-tocopherol, and δ-tocopherol in edible oils by normal-phase high performance liquid chromatography. Food Chem 2017; 234:205-211. [PMID: 28551227 DOI: 10.1016/j.foodchem.2017.04.176] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2016] [Revised: 04/25/2017] [Accepted: 04/29/2017] [Indexed: 10/19/2022]
Abstract
A normal-phase high performance liquid chromatography method for the simultaneous determination of tert-butylhydroquinone, tert-butylquinone, butylated hydroxytoluene, 2-tert-butyl-4-hydroxyanisole, 3-tert-butyl-4-hydroxyanisole, α-tocopherol, γ-tocopherol, and δ-tocopherol in edible oils was investigated. A silica column was used to separate the analytes with the gradient elution. An ultraviolet-visible detector was set at dual wavelengths mode (280 and 310nm). The column temperature was 30°C. The analytes were directly extracted with methanol. Results showed that the normal-phase high performance liquid chromatography method performed well with wide liner ranges (0.10∼500.00μg/mL, R2>0.9998), low limits of detection and quantitation (below 0.40 and 1.21μg/mL, respectively), and good recoveries (81.38∼102.34% in soybean oils and 83.03∼100.79% in lard, respectively). The reduction of tert-butylquinone caused by the reverse-phase high performance liquid chromatography during the injection was avoided with the current normal-phase method. The two isomers of butylated hydroxyanisole can also be separated with good resolution.
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Affiliation(s)
- Jun Li
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou, Henan 450001, People's Republic of China.
| | - Yanlan Bi
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou, Henan 450001, People's Republic of China.
| | - Shangde Sun
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou, Henan 450001, People's Republic of China.
| | - Dan Peng
- Lipid Technology and Engineering, School of Food Science and Engineering, Henan University of Technology, Lianhua Road, Zhengzhou, Henan 450001, People's Republic of China.
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Lara-Ortega FJ, Gilbert-López B, García-Reyes JF, Molina-Díaz A. Fast Automated Determination of Total Tocopherol Content in Virgin Olive Oil Using a Single Multicommuted Luminescent Flow Method. FOOD ANAL METHOD 2017. [DOI: 10.1007/s12161-016-0784-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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Pilařová V, Gottvald T, Svoboda P, Novák O, Benešová K, Běláková S, Nováková L. Development and optimization of ultra-high performance supercritical fluid chromatography mass spectrometry method for high-throughput determination of tocopherols and tocotrienols in human serum. Anal Chim Acta 2016; 934:252-65. [DOI: 10.1016/j.aca.2016.06.008] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2016] [Revised: 06/02/2016] [Accepted: 06/04/2016] [Indexed: 11/25/2022]
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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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11
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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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Kreps F, Vrbiková L, Schmidt Š. Influence of industrial physical refining on tocopherol, chlorophyll and beta-carotene content in sunflower and rapeseed oil. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201300460] [Citation(s) in RCA: 53] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- František Kreps
- Department of Food Science and Technology; Institute of Biotechnology and Food Technology Bratislava; Slovakia
| | - Lenka Vrbiková
- Department of Food Science and Technology; Institute of Biotechnology and Food Technology Bratislava; Slovakia
| | - Štefan Schmidt
- Department of Food Science and Technology; Institute of Biotechnology and Food Technology Bratislava; Slovakia
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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: 32] [Impact Index Per Article: 3.2] [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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Ergönül PG, Köseoğlu O. Changes in α-, β-, γ- and δ-tocopherol contents of mostly consumed vegetable oils during refining process. CYTA - JOURNAL OF FOOD 2013. [DOI: 10.1080/19476337.2013.821672] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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