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Remy C, Danoun S, Delample M, Morris C, Gilard V, Balayssac S. Characterization of fatty acid forms using benchtop NMR in omega-3 oil supplements. MAGNETIC RESONANCE IN CHEMISTRY : MRC 2024; 62:328-336. [PMID: 37736944 DOI: 10.1002/mrc.5398] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 09/08/2023] [Accepted: 09/11/2023] [Indexed: 09/23/2023]
Abstract
Omega-3 fatty acid supplements, such as fish oil and plant-based oils, have gained popularity because of their potential health benefits. However, the quality and composition of these supplements can vary widely, particularly in terms of the two main forms of omega-3 fatty acids: triacylglycerols (TAGs) and ethyl esters (EEs). TAGs are the natural form found in fish oil but are prone to oxidation, whereas EEs are more stable but less well absorbed by the body. Differentiating between these forms is crucial for assessing the efficacy and tolerance of omega-3 supplements. This article describes a novel approach to differentiate between TAG and EE forms of omega-3 fatty acids in dietary supplements, utilizing a 60-MHz benchtop nuclear magnetic resonance (NMR) spectrometer. The proposed method using 1H and 1H-1H COSY NMR provides a quick and accurate approach to screen the forms of omega-3 fatty acids and evaluate their ratios. The presence of diacylglycerol (DAGs) in some supplements was also highlighted by this method and adds some information about the process used (i.e., esterification/enrichment). The affordability and user-friendliness of benchtop NMR equipment make this method feasible for food processing companies or quality control laboratories. In this study, 24 oil supplements were analyzed using NMR analysis in order to demonstrate the potential of this method for the differentiation of TAG and EE forms in omega-3 supplements.
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Affiliation(s)
- Carla Remy
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III-Paul Sabatier, Toulouse Cedex, France
| | - Saïda Danoun
- Laboratoire SPCMIB, Université de Toulouse, CNRS UMR 5068, Université Toulouse III-Paul Sabatier, Toulouse Cedex, France
| | | | | | - Véronique Gilard
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III-Paul Sabatier, Toulouse Cedex, France
| | - Stéphane Balayssac
- Laboratoire des IMRCP, Université de Toulouse, CNRS UMR 5623, Université Toulouse III-Paul Sabatier, Toulouse Cedex, France
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Qi Y, Huang Y, Dong Y, Zhang W, Xia F, Bai H, Stevanovic ZD, Li H, Shi L. Effective Improvement of the Oxidative Stability of Acer truncatum Bunge Seed Oil, a New Woody Oil Food Resource, by Rosemary Extract. Antioxidants (Basel) 2023; 12:antiox12040889. [PMID: 37107264 PMCID: PMC10135269 DOI: 10.3390/antiox12040889] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2023] [Revised: 03/30/2023] [Accepted: 03/31/2023] [Indexed: 04/08/2023] Open
Abstract
Acer truncatum Bunge is a versatile, oil-producing, woody tree natively and widely distributed in northern China. In 2011, The People’s Republic of China’s Ministry of Health certified Acer truncatum seed oil (Aoil) as a new food resource. Unsaturated fatty acids account for up to 92% of the entire Aoil. When Aoil is processed or stored, it can easily oxidize. In this study, the effects of rosemary (Rosmarinus officinalis L.) extract on the oxidation stability of Aoil were analysed from multiple angles. The results of radical scavenging ability, malondialdehyde, and free fatty acid reveal that rosemary crude extract (RCE), rosmarinic acid (RA), and carnosic acid (CA) can significantly inhibit the oxidation of Aoil, and CA has the best oxidative stability for Aoil among the tested components of the crude rosemary. The delayed oxidation ability of CA for Aoil was slightly weaker than that of tert-butylhydroquinone (TBHQ), but stronger than that of butylated hydroxyanisole (BHA), butylated hydroxytoluene (BHT), and α-tocopherol (α-T), which was confirmed by microstructures, kinematic viscosity, Aoil weight change, and functional group. Additionally, CA-enriched Aoil had the smallest content of volatile lipid oxidation products. Moreover, lecithin-CA particles were added to enhance the oxidative stability of Aoil. These findings show that CA is a potent antioxidant, capable of successfully preventing Aoil oxidation.
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Affiliation(s)
- Yue Qi
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yeqin Huang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yanmei Dong
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Wenying Zhang
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Fei Xia
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Hongtong Bai
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Zora Dajic Stevanovic
- Department of Agrobotany, University of Belgrade Faculty of Agriculture, Nemanjina 6, 11080 Zemun, Serbia
| | - Hui Li
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
| | - Lei Shi
- Key Laboratory of Plant Resources, Institute of Botany, Chinese Academy of Sciences, Beijing 100093, China
- China National Botanical Garden, Beijing 100093, China
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Osheter T, Linder C, Wiesman Z. Time Domain (TD) Proton NMR Analysis of the Oxidative Safety and Quality of Lipid-Rich Foods. BIOSENSORS 2022; 12:bios12040230. [PMID: 35448290 PMCID: PMC9031308 DOI: 10.3390/bios12040230] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/23/2022] [Revised: 03/31/2022] [Accepted: 04/06/2022] [Indexed: 05/17/2023]
Abstract
Food safety monitoring is highly important due to the generation of unhealthy components within many food products during harvesting, processing, storage, transportation and cooking. Current technologies for food safety analysis often require sample extraction and the modification of the complex chemical and morphological structures of foods, and are either time consuming, have insufficient component resolution or require costly and complex instrumentation. In addition to the detection of unhealthy chemical toxins and microbes, food safety needs further developments in (a) monitoring the optimal nutritional compositions in many different food categories and (b) minimizing the potential chemical changes of food components into unhealthy products at different stages from food production until digestion. Here, we review an efficient methodology for overcoming the present analytical limitations of monitoring a food's composition, with an emphasis on oxidized food components, such as polyunsaturated fatty acids, in complex structures, including food emulsions, using compact instruments for simple real-time analysis. An intelligent low-field proton NMR as a time domain (TD) NMR relaxation sensor technology for the monitoring of T2 (spin-spin) and T1 (spin-lattice) energy relaxation times is reviewed to support decision-making by producers, retailers and consumers in regard to food safety and nutritional value during production, shipping, storage and consumption.
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Abstract
The search for economic and sustainable sources of polyunsaturated fatty acids (PUFAs) within the framework of the circular economy is encouraged by their proven beneficial effects on health. The extraction of monkfish liver oil (MLO) for the synthesis of omega-3 ethyl esters was performed to evaluate two blending systems and four green solvents in this work. Moreover, the potential solubility of the MLO in green solvents was studied using the predictive simulation software COnductor-like Screening MOdel for Realistic Solvents (COSMO-RS). The production of ethyl esters was performed by one or two-step reactions. Novozym 435, two resting cells (Aspergillus flavus and Rhizopus oryzae) obtained in our laboratory and a mix of them were used as biocatalysts in a solvent-free system. The yields for Novozym 435, R. oryzae and A. flavus in the one-step esterification were 63, 61 and 46%, respectively. The hydrolysis step in the two-step reaction led to 83, 88 and 93% of free fatty acids (FFA) for Novozym 435, R. oryzae and A. flavus, respectively. However, Novozym 435 showed the highest yield in the esterification step (85%), followed by R. oryzae (65%) and A. flavus (41%). Moreover, selectivity of polyunsaturated fatty acids of R. oryzae lipase was evidenced as it slightly esterified docosahexaenoic acid (DHA) in all the esterification reactions tested.
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Percival BC, Wann A, Zbasnik R, Schlegel V, Edgar M, Zhang J, Ampem G, Wilson P, Le Gresley A, Naughton D, Grootveld M. Evaluations of the Peroxidative Susceptibilities of Cod Liver Oils by a 1H NMR Analysis Strategy: Peroxidative Resistivity of a Natural Collagenous and Biogenic Amine-Rich Fermented Product. Nutrients 2020; 12:E753. [PMID: 32178350 PMCID: PMC7146420 DOI: 10.3390/nu12030753] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2020] [Revised: 03/03/2020] [Accepted: 03/06/2020] [Indexed: 11/20/2022] Open
Abstract
High-resolution 1H nuclear magnetic resonance (NMR) analysis was employed to molecularly screen the lipid, lipid oxidation product (LOP), and antioxidant compositions of four natural (unrefined) cod liver oil (CLO) products. Products 1-3 were non-fermented CLOs, whilst Product 4 was isolated from pre-fermented cod livers. Supporting analytical data that were acquired included biogenic amine, flavanone, tannin, phenolic antioxidant, α-tocopherol, and oxygen radical absorbance capacity (ORAC) determinations by recommended HPLC, LC/MS/MS, or spectrophotometric methods. SDS-PAGE, HPLC, and 1H NMR analyses investigated and determined collagenous antioxidants and their molecular mass ranges. 1H NMR analysis of aldehydic LOPs was employed to explore the susceptibilities/resistivities of each CLO product to peroxidation that is induced by thermal stressing episodes (TSEs) at 180°C, or following prolonged (42 day) storage episodes at 4 and 23 °C. Product 4 displayed extremely high ORAC values, which were much greater than those of Products 1-3, and that were predominantly ascribable to significant levels of peroxidation-blocking and/or aldehyde-consuming collagenous polypeptides/peptides and ammoniacal agents therein. Significantly lower levels of toxic aldehydes were generated in the pre-fermented Product 4 during exposure to TSEs, or the above long-term storage episodes. These results confirmed the enhanced peroxidative resistivity of a fermented, antioxidant-fortified natural CLO product over those of non-fermented unrefined products. Product 4: Green Pasture Blue Ice™ Fermented Cod Liver Oil.
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Affiliation(s)
- Benita C. Percival
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (B.C.P.); (A.W.); (P.W.)
| | - Angela Wann
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (B.C.P.); (A.W.); (P.W.)
- Department of Applied and Human Sciences, Kingston University London, Penrhyn Road, Kingston-upon-Thames KT1 2EE, UK; (G.A.); (A.L.G.); (D.N.)
| | - Richard Zbasnik
- Natural Product Analysis Laboratory, Department of Food Science and Technology, University of Nebraska-Lincoln, 1901 N 21st Street, Lincoln, NE 68588-6205, USA; (R.Z.); (V.S.)
| | - Vicki Schlegel
- Natural Product Analysis Laboratory, Department of Food Science and Technology, University of Nebraska-Lincoln, 1901 N 21st Street, Lincoln, NE 68588-6205, USA; (R.Z.); (V.S.)
| | - Mark Edgar
- Department of Chemistry, University of Loughborough, Epinal Way, Loughborough, LE11 3TU, UK;
| | - Jie Zhang
- Green Pasture Products, 416 E. Fremont Street, O’Neill, NE 68763, USA;
| | - Gilbert Ampem
- Department of Applied and Human Sciences, Kingston University London, Penrhyn Road, Kingston-upon-Thames KT1 2EE, UK; (G.A.); (A.L.G.); (D.N.)
| | - Philippe Wilson
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (B.C.P.); (A.W.); (P.W.)
| | - Adam Le Gresley
- Department of Applied and Human Sciences, Kingston University London, Penrhyn Road, Kingston-upon-Thames KT1 2EE, UK; (G.A.); (A.L.G.); (D.N.)
| | - Declan Naughton
- Department of Applied and Human Sciences, Kingston University London, Penrhyn Road, Kingston-upon-Thames KT1 2EE, UK; (G.A.); (A.L.G.); (D.N.)
| | - Martin Grootveld
- Leicester School of Pharmacy, De Montfort University, The Gateway, Leicester LE1 9BH, UK; (B.C.P.); (A.W.); (P.W.)
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García-Romo JS, Noguera-Artiaga L, Gálvez-Iriqui AC, Hernández-Zazueta MS, Valenzuela-Cota DF, González-Vega RI, Plascencia-Jatomea M, Burboa-Zazueta MG, Sandoval-Petris E, Robles-Sánchez RM, Juárez J, Hernández-Martínez J, Santacruz-Ortega HDC, Burgos-Hernández A. Antioxidant, antihemolysis, and retinoprotective potentials of bioactive lipidic compounds from wild shrimp (Litopenaeus stylirostris) muscle. CYTA - JOURNAL OF FOOD 2020. [DOI: 10.1080/19476337.2020.1719210] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Affiliation(s)
- Joel Said García-Romo
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Hermosillo, Mexico
| | - Luis Noguera-Artiaga
- Departamento de Tecnología Agroalimentaria, Universidad Miguel Hernández de Elche, Grupo Calidad y Seguridad Alimentaria, Alicante, Spain
| | | | | | | | | | | | | | - Edgar Sandoval-Petris
- Departamento de Investigaciones Científicas y Tecnológicas, Universidad de Sonora, Hermosillo, Mexico
| | | | - Josué Juárez
- Departamento de Física, Universidad de Sonora, Hermosillo, Mexico
| | | | | | - Armando Burgos-Hernández
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Hermosillo, Mexico
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Chang HJ, Lee JH. Emulsification and oxidation stabilities of DAG-rich algae oil-in-water emulsions prepared with the selected emulsifiers. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2020; 100:287-294. [PMID: 31525263 DOI: 10.1002/jsfa.10037] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 09/10/2019] [Accepted: 09/11/2019] [Indexed: 06/10/2023]
Abstract
BACKGROUND Diacylglycerol (DAG) reduces body weight, suppresses body fat accumulation, and lowers the blood lipid concentration, and docosahexaenoic acid (DHA) can reduce the risk of occurrence of coronary artery diseases. RESULTS DAG-rich algae oil with a high DHA content (55.9%) was synthesized via the lipase-catalyzed glycerolysis of algae oil, which consisted of triacylglycerol (43.9 mol%), DAG (40.9 mol%), and monoacylglycerol (15.2 mol%). The DAG-rich algae oil-in-water emulsions were prepared using three emulsifiers [whey protein concentrate (WPC), Tween80, and Tween80 + Span80]. The WPC-emulsion formed a thicker serum layer (6.67% at day 51) and larger oil droplets (d32 , 0.37 μm at day 28) than the Tween80- and Tween80 + Span80-emulsions (3.33-4.17%; 0.26 μm), and an upper cream layer with excess oil droplets was observed in only the WPC-emulsion, indicating that WPC-emulsion possesses the lowest emulsification stability. The hydroperoxide value and reduction rate of the DHA content were higher in the WPC-emulsions than in the Tween80- and Tween80 + Span80-emulsions during storage, which suggested that the WPC-emulsion had the lowest oxidation stability. CONCLUSION The DAG-rich algae oil-in-water emulsion prepared with suitable emulsifiers, such as non-ionic emulsifiers, would have excellent emulsification and oxidative stabilities and provides a health benefit for special purposes in the food processing industry. © 2019 Society of Chemical Industry.
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Affiliation(s)
- Hyeon-Jun Chang
- Department of Food and Nutrition, Daegu University, Gyeonsan-si, Gyeongsangbukdo, Republic of Korea
| | - Jeung-Hee Lee
- Department of Food and Nutrition, Daegu University, Gyeonsan-si, Gyeongsangbukdo, Republic of Korea
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Gottstein V, Müller M, Günther J, Kuballa T, Vetter W. Direct 1H NMR Quantitation of Valuable Furan Fatty Acids in Fish Oils and Fish Oil Fractions. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2019; 67:11788-11795. [PMID: 31565927 DOI: 10.1021/acs.jafc.9b04711] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Furan fatty acids (FuFAs) are a class of naturally occurring minor fatty acids with fish as the richest food source. Typically, FuFA analysis is cumbersome and involves several steps. We developed a quantitative 1H NMR method (qNMR) in which fish oil samples were directly measured after dilution with CDCl3 stabilized with silver (which was essential to prevent formation of radicals) and addition of an internal standard. The singlet at δ = 1.89 ppm was suitable for quantitation of monomethyl FuFAs, whereas the signal at δ = 1.83 ppm was suitable to quantitate dimethyl FuFAs. Using standard NMR tubes with 650 μL solvent, the limit of quantitation was 0.5 μg (dimethyl FuFAs) and 1.0 μg (monomethyl FuFAs). Applied to three fish oil and two enriched fish oil samples (sample weight, 10 mg), the final qNMR method resulted in similar total FuFA contents as determined in parallel by gas chromatography coupled to mass spectrometry.
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Affiliation(s)
- Vera Gottstein
- Institute of Food Chemistry, Department of Food Chemistry (170b) , University of Hohenheim , D-70593 Stuttgart , Germany
- CVUA Karlsruhe , Weißenburgerstraße 3 , 76187 Karlsruhe , Germany
| | - Marco Müller
- Institute of Food Chemistry, Department of Food Chemistry (170b) , University of Hohenheim , D-70593 Stuttgart , Germany
| | - Johannes Günther
- Spectroscopy Unit , Core Facility Hohenheim , D-70593 Stuttgart , Germany
| | - Thomas Kuballa
- CVUA Karlsruhe , Weißenburgerstraße 3 , 76187 Karlsruhe , Germany
| | - Walter Vetter
- Institute of Food Chemistry, Department of Food Chemistry (170b) , University of Hohenheim , D-70593 Stuttgart , Germany
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Jansson P, Kay B. Aldehydes identified in commercially available ω-3 supplements via 1 H NMR spectroscopy. Nutrition 2018; 60:74-79. [PMID: 30529885 DOI: 10.1016/j.nut.2018.10.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2018] [Revised: 09/13/2018] [Accepted: 10/07/2018] [Indexed: 11/17/2022]
Abstract
OBJECTIVES Cardiovascular disease (CVD) is the leading cause of mortality globally. Studies have suggested that supplementary ω-3 oils may provide cardiovascular protection, although the literature is equivocal. Recently, it has been established that many commercially available ω-3 supplements are unacceptably oxidized, leading to myriad potential health risks. One oxidation product of concern is aldehydes, which have been shown to have mutagenic, cytotoxic, and inflammatory properties that may contribute to many different disease processes, including CVD. The aim of this study was to assess the prevalence of aldehyde contamination in commercially available ω-3 supplements. METHODS We tested 12 different ω-3 oils (6 fish, 4 krill, 2 algae), using 1 H-nuclear magnetic resonance scanning. This work is of a pilot nature, as such we randomly selected and purchased 12 different oils over the counter from various local retailers according to the sales representatives' recommendations. RESULTS The four krill products contained aldehydes at concentrations between 5.652 (±0.496) and 6.779 (±1.817) mMol/L. Both algae samples contained aldehydes: 1.235 (±0.111) and 1.565 (±0.618) mMol/L. Two of the six fish oils contained aldehydes 1.568 (±0.291) and 4.319 (±2.361) mMol/L. There is currently no standard for aldehyde content nor for labeling of ω-3 supplements. Two-thirds (8 of 12) of the ω-3 supplements tested in this study contained aldehydes. Aldehydes have the potential to precipitate serious health problems even at very low absolute intake volumes. These findings may provide reason for sober reflection.
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Affiliation(s)
- Pim Jansson
- Independent nutritionist and biomedical scientist, Mapua, New Zealand
| | - Bartholomew Kay
- Independent physiologist and nutritionist, Mapua, New Zealand.
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Hatzakis E. Nuclear Magnetic Resonance (NMR) Spectroscopy in Food Science: A Comprehensive Review. Compr Rev Food Sci Food Saf 2018; 18:189-220. [PMID: 33337022 DOI: 10.1111/1541-4337.12408] [Citation(s) in RCA: 135] [Impact Index Per Article: 22.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2018] [Revised: 09/28/2018] [Accepted: 10/18/2018] [Indexed: 12/15/2022]
Abstract
Nuclear magnetic resonance (NMR) spectroscopy is a robust method, which can rapidly analyze mixtures at the molecular level without requiring separation and/or purification steps, making it ideal for applications in food science. Despite its increasing popularity among food scientists, NMR is still an underutilized methodology in this area, mainly due to its high cost, relatively low sensitivity, and the lack of NMR expertise by many food scientists. The aim of this review is to help bridge the knowledge gap that may exist when attempting to apply NMR methodologies to the field of food science. We begin by covering the basic principles required to apply NMR to the study of foods and nutrients. A description of the discipline of chemometrics is provided, as the combination of NMR with multivariate statistical analysis is a powerful approach for addressing modern challenges in food science. Furthermore, a comprehensive overview of recent and key applications in the areas of compositional analysis, food authentication, quality control, and human nutrition is provided. In addition to standard NMR techniques, more sophisticated NMR applications are also presented, although limitations, gaps, and potentials are discussed. We hope this review will help scientists gain some of the knowledge required to apply the powerful methodology of NMR to the rich and diverse field of food science.
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Affiliation(s)
- Emmanuel Hatzakis
- Dept. of Food Science and Technology, The Ohio State Univ., Parker Building, 2015 Fyffe Rd., Columbus, OH, U.S.A.,Foods for Health Discovery Theme, The Ohio State Univ., Parker Building, 2015 Fyffe Rd., Columbus, OH, U.S.A
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11
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Martin-Rubio AS, Sopelana P, Guillén MD. A thorough insight into the complex effect of gamma-tocopherol on the oxidation process of soybean oil by means of 1H Nuclear Magnetic Resonance. Comparison with alpha-tocopherol. Food Res Int 2018; 114:230-239. [PMID: 30361021 DOI: 10.1016/j.foodres.2018.07.064] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2018] [Revised: 07/02/2018] [Accepted: 07/31/2018] [Indexed: 11/15/2022]
Abstract
The effect of γ-tocopherol in proportions between 0.02 and 2% by weight on the accelerated storage process of refined soybean oil is studied by 1H NMR, and compared with that of α-tocopherol. Whereas the lowest γ-tocopherol enrichment level does not affect oil evolution, at higher concentrations both γ- and α-tocopherols initially accelerate acyl groups degradation and hydroperoxides generation, more as higher is the tocopherol concentration, this effect being less marked for γ-tocopherol. However, after this initial stage, the rates of acyl groups degradation and hydroperoxides formation decrease with tocopherol concentration. Furthermore, in the case of γ-tocopherol, the higher the enrichment degree, the later hydroperoxides decomposition occurs, so that, unlike α-tocopherol, γ-tocopherol delays the generation of most secondary oxidation products (aldehydes, (E,E)-keto-dienes, epoxy-keto-enes, (E)-epoxystearates and alcohols) with the exception of some epoxides. Similarly to α-tocopherol, γ-tocopherol modifies the oil oxidation pathway at the highest addition level, promoting the formation of compounds with (Z,E)-isomerism, although less noticeably than α-tocopherol.
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Affiliation(s)
- A S Martin-Rubio
- Food Technology, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad n° 7, 01006 Vitoria, Spain..
| | - P Sopelana
- Food Technology, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad n° 7, 01006 Vitoria, Spain..
| | - María D Guillén
- Food Technology, Faculty of Pharmacy, Lascaray Research Center, University of the Basque Country (UPV/EHU), Paseo de la Universidad n° 7, 01006 Vitoria, Spain..
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12
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Chia bilayer emulsions with modified sunflower lecithins and chitosan as delivery systems of omega-3 fatty acids. Lebensm Wiss Technol 2018. [DOI: 10.1016/j.lwt.2017.11.044] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
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13
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Joseph D, Chakraborty K. Enrichment of C20-22 Polyunsaturated Fatty Acids from Refined Liver Oil of Leafscale Gulper Shark, Centrophorus squamosus. JOURNAL OF AQUATIC FOOD PRODUCT TECHNOLOGY 2017. [DOI: 10.1080/10498850.2017.1375588] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- Dexy Joseph
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Cochin, India
- Department of Biosciences, Mangalore University, Mangalagangothri, Karnataka State, India
| | - Kajal Chakraborty
- Marine Bioprospecting Section of Marine Biotechnology Division, Central Marine Fisheries Research Institute, Cochin, India
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14
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Tan Z, Reyes-Suarez E, Indrasena W, Kralovec JA. Novel approach to study fish oil oxidation using 1H nuclear magnetic resonance spectroscopy. J Funct Foods 2017. [DOI: 10.1016/j.jff.2017.06.050] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
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15
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Merkle S, Giese E, Rohn S, Karl H, Lehmann I, Wohltmann A, Fritsche J. Impact of fish species and processing technology on minor fish oil components. Food Control 2017. [DOI: 10.1016/j.foodcont.2016.11.003] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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16
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Reliability of 1H NMR Analysis for Assessment of Lipid Oxidation at Frying Temperatures. J AM OIL CHEM SOC 2017. [DOI: 10.1007/s11746-016-2945-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Mozuraityte R, Kristinova V, Standal IB, Evensen H, Rustad T. Applicability of traditional and advanced methods for oxidative quality and stability on marine phospholipids. EUR J LIPID SCI TECH 2016. [DOI: 10.1002/ejlt.201600103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
Affiliation(s)
| | | | | | - Henning Evensen
- Department of Biotechnology; Norwegian University of Science and Technology; Trondheim Norway
| | - Turid Rustad
- Department of Biotechnology; Norwegian University of Science and Technology; Trondheim Norway
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18
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Lei Q, Ba S, Zhang H, Wei Y, Lee JY, Li T. Enrichment of omega-3 fatty acids in cod liver oil via alternate solvent winterization and enzymatic interesterification. Food Chem 2016; 199:364-71. [DOI: 10.1016/j.foodchem.2015.12.005] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2015] [Revised: 11/21/2015] [Accepted: 12/01/2015] [Indexed: 10/22/2022]
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19
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Cai H, Lin L, Ding S, Cui X, Chen Z. Fast quantification of fatty acid profile of intact fish by intermolecular double-quantum coherence1H-NMR spectroscopy. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201500309] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Affiliation(s)
- Honghao Cai
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surfaces; Xiamen University; Xiamen P. R. China
- Department of Chemistry; National Sun Yat-sen University; Kaohsiung Taiwan
| | - Liangjie Lin
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surfaces; Xiamen University; Xiamen P. R. China
| | - Shangwu Ding
- Department of Chemistry; National Sun Yat-sen University; Kaohsiung Taiwan
| | - Xiaohong Cui
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surfaces; Xiamen University; Xiamen P. R. China
| | - Zhong Chen
- Department of Electronic Science, Fujian Provincial Key Laboratory of Plasma and Magnetic Resonance, State Key Laboratory of Physical Chemistry of Solid Surfaces; Xiamen University; Xiamen P. R. China
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20
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(1)H NMR metabolomic profiling of the blue crab (Callinectes sapidus) from the Adriatic Sea (SE Italy): A comparison with warty crab (Eriphia verrucosa), and edible crab (Cancer pagurus). Food Chem 2015; 196:601-9. [PMID: 26593533 DOI: 10.1016/j.foodchem.2015.09.087] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2015] [Revised: 09/07/2015] [Accepted: 09/24/2015] [Indexed: 11/23/2022]
Abstract
The metabolomic profile of blue crab (Callinectes sapidus) captured in the Acquatina lagoon (SE Italy) was compared to an autochthonous (Eriphia verrucosa) and to a commercial crab species (Cancer pagurus). Both lipid and aqueous extracts of raw claw muscle were analyzed by (1)H NMR spectroscopy and MVA (multivariate data analysis). Aqueous extracts were characterized by a higher inter-specific discriminating power compared to lipid fractions. Specifically, higher levels of glutamate, alanine and glycine characterized the aqueous extract of C. sapidus, while homarine, lactate, betaine and taurine characterized E. verrucosa and C. pagurus. On the other hand, only the signals of monounsaturated fatty acids distinguished the lipid profiles of the three crab species. These results support the commercial exploitation and the integration of the blue crab in human diet of European countries as an healthy and valuable seafood.
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21
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Chakraborty K, Joseph D, Joseph D. Concentration of C
20‐22
n
‐3 polyunsaturated fatty acids from
Sardinella longiceps
and fatty acid stabilization. EUR J LIPID SCI TECH 2015. [DOI: 10.1002/ejlt.201400629] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kajal Chakraborty
- Marine Biotechnology DivisionCentral Marine Fisheries Research InstituteKeralaIndia
| | - Deepu Joseph
- Marine Biotechnology DivisionCentral Marine Fisheries Research InstituteKeralaIndia
| | - Dexy Joseph
- Marine Biotechnology DivisionCentral Marine Fisheries Research InstituteKeralaIndia
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22
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Effect of Positional Distribution of Linoleic Acid on Oxidative Stability of Triacylglycerol Molecules Determined by 1H NMR. J AM OIL CHEM SOC 2015. [DOI: 10.1007/s11746-015-2590-y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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23
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Degree of oxidation depending on the positional distribution of linolenic acid in perilla oil and interesterified products. Food Sci Biotechnol 2014. [DOI: 10.1007/s10068-014-0237-7] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
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24
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López-Saiz CM, Velázquez C, Hernández J, Cinco-Moroyoqui FJ, Plascencia-Jatomea M, Robles-Sánchez M, Machi-Lara L, Burgos-Hernández A. Isolation and structural elucidation of antiproliferative compounds of lipidic fractions from white shrimp muscle (Litopenaeus vannamei). Int J Mol Sci 2014; 15:23555-70. [PMID: 25526568 PMCID: PMC4284780 DOI: 10.3390/ijms151223555] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Revised: 12/05/2014] [Accepted: 12/05/2014] [Indexed: 01/27/2023] Open
Abstract
Shrimp is one of the most popular seafood items worldwide, and has been reported as a source of chemopreventive compounds. In this study, shrimp lipids were separated by solvent partition and further fractionated by semi-preparative RP-HPLC and finally by open column chromatography in order to obtain isolated antiproliferative compounds. Antiproliferative activity was assessed by inhibition of M12.C3.F6 murine cell growth using the MTT (3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2-H-tetrazolium bromide) assay. The methanolic fraction showed the highest antiproliferative activity; this fraction was separated into 15 different sub-fractions (M1-M15). Fractions M8, M9, M10, M12, and M13 were antiproliferative at 100 µg/mL and they were further tested at lower concentrations. Fractions M12 and M13 exerted the highest growth inhibition with an IC50 of 19.5 ± 8.6 and 34.9 ± 7.3 µg/mL, respectively. Fraction M12 was further fractionated in three sub-fractions M12a, M12b, and M12c. Fraction M12a was identified as di-ethyl-hexyl-phthalate, fraction M12b as a triglyceride substituted by at least two fatty acids (predominantly oleic acid accompanied with eicosapentaenoic acid) and fraction M12c as another triglyceride substituted with eicosapentaenoic acid and saturated fatty acids. Bioactive triglyceride contained in M12c exerted the highest antiproliferative activity with an IC50 of 11.33 ± 5.6 µg/mL. Biological activity in shrimp had been previously attributed to astaxanthin; this study demonstrated that polyunsaturated fatty acids are the main compounds responsible for antiproliferative activity.
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Affiliation(s)
- Carmen-María López-Saiz
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Apartado Postal 1658, Hermosillo, Sonora 83000, Mexico.
| | - Carlos Velázquez
- Departamento de Ciencias Químico-Biológicas, Universidad de Sonora, Apartado Postal 1685, Hermosillo, Sonora 83000, Mexico.
| | - Javier Hernández
- Unidad de Servicios de Apoyo en Resolución Analítica, Universidad Veracruzana, Xico, Veracruz 91190, Mexico.
| | - Francisco-Javier Cinco-Moroyoqui
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Apartado Postal 1658, Hermosillo, Sonora 83000, Mexico.
| | - Maribel Plascencia-Jatomea
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Apartado Postal 1658, Hermosillo, Sonora 83000, Mexico.
| | - Maribel Robles-Sánchez
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Apartado Postal 1658, Hermosillo, Sonora 83000, Mexico.
| | - Lorena Machi-Lara
- Departamento de Investigación en Polímeros y Materiales, Universidad de Sonora, Apartado Postal 1685, Hermosillo, Sonora 83000, Mexico.
| | - Armando Burgos-Hernández
- Departamento de Investigación y Posgrado en Alimentos, Universidad de Sonora, Apartado Postal 1658, Hermosillo, Sonora 83000, Mexico.
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25
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Vidal NP, Goicoechea E, Manzanos MJ, Guillén MD. 1
H NMR study of the changes in brine‐ and dry‐salted sea bass lipids under thermo‐oxidative conditions: Both salting methods reduce oxidative stability. EUR J LIPID SCI TECH 2014. [DOI: 10.1002/ejlt.201400329] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Natalia P. Vidal
- Food TechnologyFaculty of PharmacyLascaray Research CenterUniversity of the Basque Country (UPV/EHU)Vitoria‐GasteizSpain
| | - Encarnación Goicoechea
- Food TechnologyFaculty of PharmacyLascaray Research CenterUniversity of the Basque Country (UPV/EHU)Vitoria‐GasteizSpain
| | - María J. Manzanos
- Food TechnologyFaculty of PharmacyLascaray Research CenterUniversity of the Basque Country (UPV/EHU)Vitoria‐GasteizSpain
| | - María D. Guillén
- Food TechnologyFaculty of PharmacyLascaray Research CenterUniversity of the Basque Country (UPV/EHU)Vitoria‐GasteizSpain
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26
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van Amerongen YF, Roy U, Spaink HP, de Groot HJM, Huster D, Schiller J, Alia A. Zebrafish brain lipid characterization and quantification by ¹H nuclear magnetic resonance spectroscopy and MALDI-TOF mass spectrometry. Zebrafish 2014; 11:240-7. [PMID: 24707799 DOI: 10.1089/zeb.2013.0955] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Lipids play an important role in many neurodegenerative diseases, such as Parkinson's disease, Alzheimer's disease, and Huntington's disease. Zebrafish models for these diseases have been recently developed. The detailed brain lipid composition of the adult zebrafish is not known, and therefore, the representativeness of these models cannot be properly evaluated. In this study, we characterized the total lipid composition of healthy adult zebrafish using (1)H nuclear magnetic resonance spectroscopy. A close resemblance of the zebrafish brain composition is shown in comparison to the human brain. Moreover, several lipids involved in the pathogenesis of neurodegenerative diseases (i.e., cholesterol, phosphatidylcholine, docosahexaenoic acid, and further, polyunsaturated fatty acids) are detected and quantified. These lipids might represent useful biomarkers in future research toward human therapies. Matrix-assisted laser desorption-ionization time-of-flight mass spectrometry coupled with high-performance thin-layer chromatography was used for further characterization of zebrafish brain lipids. Our results show that the lipid composition of the zebrafish brain is rather similar to the human brain and thus confirms that zebrafish represents a good model for studying various brain diseases.
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27
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Wu D, Chen X, Cao F, Sun DW, He Y, Jiang Y. Comparison of Infrared Spectroscopy and Nuclear Magnetic Resonance Techniques in Tandem with Multivariable Selection for Rapid Determination of ω-3 Polyunsaturated Fatty Acids in Fish Oil. FOOD BIOPROCESS TECH 2013. [DOI: 10.1007/s11947-013-1147-z] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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28
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Effects of organic plant oils and role of oxidation on nutrient utilization in juvenile rainbow trout (Oncorhynchus mykiss). Animal 2013; 7:394-403. [DOI: 10.1017/s1751731112001693] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
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29
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Quality of farmed and wild sea bass lipids studied by 1H NMR: Usefulness of this technique for differentiation on a qualitative and a quantitative basis. Food Chem 2012; 135:1583-91. [DOI: 10.1016/j.foodchem.2012.06.002] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2012] [Revised: 05/10/2012] [Accepted: 06/01/2012] [Indexed: 11/22/2022]
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30
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A review of analytical methods measuring lipid oxidation status in foods: a challenging task. Eur Food Res Technol 2012. [DOI: 10.1007/s00217-012-1866-9] [Citation(s) in RCA: 121] [Impact Index Per Article: 10.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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31
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Quantitative determination of fatty acid chain composition in pork meat products by high resolution 1H NMR spectroscopy. Food Chem 2012; 136:546-54. [PMID: 23122096 DOI: 10.1016/j.foodchem.2012.08.058] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/08/2011] [Revised: 05/02/2012] [Accepted: 08/22/2012] [Indexed: 01/06/2023]
Abstract
High resolution (1)H NMR spectroscopy was proposed for the determination of the fatty acid chain profile of lipids in pork meat products during ripening. Two typical Mediterranean PDO salami produced in Calabria, a region in the Southern Italy, were chosen as a case of study. Quantitative NMR analysis provided the fatty acid chain profiles of total lipid extracts. The transesterification of total lipid extracts furnished FAME mixtures that enabled quantitation of fatty acid acyl chains in the acylglycerol and FFA portions. In all cases, oleyl chains were predominant, and high amounts of polyunsaturated fatty acid chains were observed. The proposed spectroscopic method allowed also the estimation of the most important nutritional parameters of dry fermented meat products.
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32
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A comparison of the metabolic profile on intact tissue and extracts of muscle and liver of juvenile Atlantic salmon (Salmo salar L.) – Application to a short feeding study. Food Chem 2011. [DOI: 10.1016/j.foodchem.2011.05.081] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
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33
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Kirby CW, McCallum JL, Fofana B. A 1H NMR study of the fatty acid distribution in developing flax bolls before and after a cooking treatment. CAN J CHEM 2011. [DOI: 10.1139/v11-057] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Flax is an important Canadian crop that contains a large percentage of fatty acids (FAs) by seed weight. Gas chromatography (GC) methods have traditionally been used to study FA distributions in oil seed crops. These methods, however, require sample preparation involving saponification and methyl ester formation. Recently, 1H NMR has been shown to be an excellent way to directly measure FA distributions in edible oils using a nondestructive and experimentally faster methodology. As such, we have examined the FA profiles in developing bolls of flax cultivar AC McDuff using 1H NMR and assessed the effect of cooking on FA stability and distribution. The data confirmed the high percentage of linolenic acid in mature AC McDuff flax seed compared to early stages of development and showed that FAs at early stages of boll development are more prone to thermal degradation. Triacylglycerol was found to be important to FA stability to heat. It was also observed that the FAs did not convert from cis to trans under the cooking process used herein. The usefulness of 1H NMR spectroscopy in oils chemistry is highlighted.
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Affiliation(s)
- Christopher W. Kirby
- Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 550 University Avenue, Charlottetown, PEI C1A 4P3, Canada
| | - Jason L. McCallum
- Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 550 University Avenue, Charlottetown, PEI C1A 4P3, Canada
| | - Bourlaye Fofana
- Crops and Livestock Research Centre, Agriculture and Agri-Food Canada, 550 University Avenue, Charlottetown, PEI C1A 4P3, Canada
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Nestor G, Bankefors J, Schlechtriem C, Brännäs E, Pickova J, Sandström C. High-resolution ¹H magic angle spinning NMR spectroscopy of intact Arctic char (Salvelinus Alpinus) muscle. Quantitative analysis of n-3 fatty acids, EPA and DHA. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2010; 58:10799-10803. [PMID: 20873863 DOI: 10.1021/jf103338j] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
The lipid and small metabolite profiles from intact muscles of Arctic char were investigated using (1)H high-resolution magic angle spinning ((1)H HR-MAS) NMR spectroscopy. Not only the total n-3 fatty acid content but also the eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) contents of the muscle were obtained from the (1)H HR-MAS NMR spectra without pretreatment of the tissue or lipophilic extraction. A number of small metabolites could also be observed, where creatine/phosphocreatine, anserine and taurine were the most abundant. Thus, the use of (1)H HR-MAS NMR led to simplified analysis techniques that can give direct information on the nutritional value of the fish.
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Affiliation(s)
- Gustav Nestor
- Department of Chemistry, Swedish University of Agricultural Sciences, P.O. Box 7015, SE-750 07, Uppsala, Sweden
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35
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Scano P, Rosa A, Locci E, Dessi MA, Lai A. NMR study of the lipid profile of mullet raw roe and bottarga. EUR J LIPID SCI TECH 2009. [DOI: 10.1002/ejlt.200800226] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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