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Haraldsdottir H, Gudmundsson HG, Linderborg KM, Yang B, Haraldsson GG. Chemoenzymatic Synthesis of ABC-Type Enantiostructured Triacylglycerols by the Use of the p-Methoxybenzyl Protective Group. Molecules 2024; 29:1633. [PMID: 38611912 PMCID: PMC11013301 DOI: 10.3390/molecules29071633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/14/2024] [Revised: 03/30/2024] [Accepted: 04/03/2024] [Indexed: 04/14/2024] Open
Abstract
This report demonstrates the first asymmetric synthesis of enantiopure structured triacylglycerols (TAGs) of the ABC type presenting three non-identical fatty acids, two of which are unsaturated. The unsaturated fatty acids included monounsaturated oleic acid (C18:1 n-9) and polyunsaturated linoleic acid (C18:2 n-6). This was accomplished by a six-step chemoenzymatic approach starting from (R)- and (S)-solketals. The highly regioselective immobilized Candida antarctica lipase (CAL-B) played a crucial role in the regiocontrol of the synthesis. The synthesis also benefited from the use of the p-methoxybenzyl (PMB) ether protective group, which enabled the incorporation of two different unsaturated fatty acids into the glycerol skeleton. The total of six such TAGs were prepared, four constituting the unsaturated fatty acids in the sn-1 and sn-2 positions, with a saturated fatty acid in the remaining sn-3 position of the glycerol backbone. In the two remaining TAGs, the different unsaturated fatty acids accommodated the sn-1 and sn-3 end positions, with the saturated fatty acid present in the sn-2 position. Enantiopure TAGs are urgently demanded as standards for the enantiospecific analysis of intact TAGs in fats and oils.
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Affiliation(s)
- Hafdis Haraldsdottir
- Chemistry Department, Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland; (H.H.); (H.G.G.)
| | - Haraldur G. Gudmundsson
- Chemistry Department, Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland; (H.H.); (H.G.G.)
| | - Kaisa M. Linderborg
- Food Sciences, Department of Life Technologies, University of Turku, 20520 Turku, Finland; (K.M.L.); (B.Y.)
| | - Baoru Yang
- Food Sciences, Department of Life Technologies, University of Turku, 20520 Turku, Finland; (K.M.L.); (B.Y.)
| | - Gudmundur G. Haraldsson
- Chemistry Department, Science Institute, University of Iceland, Dunhaga 3, 107 Reykjavik, Iceland; (H.H.); (H.G.G.)
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Pariyani R, Zhang Y, Haraldsson GG, Chen K, Linderborg KM, Yang B. Metabolomic Investigation of Brain and Liver in Rats Fed Docosahexaenoic Acid in Regio- and Enantiopure Triacylglycerols. Mol Nutr Food Res 2024; 68:e2300341. [PMID: 38396161 DOI: 10.1002/mnfr.202300341] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 12/30/2023] [Indexed: 02/25/2024]
Abstract
SCOPE N-3 polyunsaturated fatty acids (n-3 PUFAs) play important roles in cognitive functions. However, there is a lack of knowledge on the metabolic impact of regio- and stereo-specific positioning of n-3 PUFAs in dietary triacylglycerols. METHODS AND RESULTS Rats in a state of mild n-3 PUFA deficiency are fed daily with 360 mg triacylglycerols containing DHA (docosahexaenoic acid) at sn (stereospecific numbering)-1, 2, or 3 positions and 18:0 at remaining positions, or an equal amount of tristearin for 5 days. Groups fed with n-3 deficient diet and normal n-3 adequate diet are included as controls. The metabolic profiles of the brain and liver are studied using NMR (nuclear magnetic resonance)-based metabolomics. Several metabolites of significance in membrane integrity and neurotransmission, and glutamate, in particular, are significantly lower in the brain of the groups fed with sn-1 and sn-3 DHA compared to the sn-2 DHA group. Further, the tristearin and DHA groups show a lower lactate level compared to the groups fed on normal or n-3 deficient diet, suggesting a prominent role of C18:0 in regulating energy metabolism. CONCLUSION This study sheds light on the impact of stereospecific positioning of DHA in triacylglycerols and the role of dietary stearic acid on metabolism in the brain and liver.
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Affiliation(s)
- Raghunath Pariyani
- Food Sciences, Department of Life Technologies, University of Turku, Turku, 20014, Finland
| | - Yumei Zhang
- Department of Nutrition & Food Hygiene, School of Public Health, Peking University, Beijing, 100191, China
| | | | - Kang Chen
- Food Sciences, Department of Life Technologies, University of Turku, Turku, 20014, Finland
| | - Kaisa M Linderborg
- Food Sciences, Department of Life Technologies, University of Turku, Turku, 20014, Finland
| | - Baoru Yang
- Food Sciences, Department of Life Technologies, University of Turku, Turku, 20014, Finland
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Beltrame G, Ahonen E, Damerau A, Gudmundsson HG, Haraldsson GG, Linderborg KM. Lipid Structure Influences the Digestion and Oxidation Behavior of Docosahexaenoic and Eicosapentaenoic Acids in the Simulated Digestion System. JOURNAL OF AGRICULTURAL AND FOOD CHEMISTRY 2023. [PMID: 37338276 DOI: 10.1021/acs.jafc.3c02207] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/21/2023]
Abstract
Omega-3 fatty acids such as eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) are essential for human health but prone to oxidation. While esterification location is known to influence the stability of omega-3 in triacylglycerols (TAGs) in oxidation trials, their oxidative behavior in the gastrointestinal tract is unknown. Synthesized ABA- and AAB-type TAGs containing DHA and EPA were submitted to static in vitro digestion for the first time. Tridocosahexaenoin and DHA as ethyl esters were similarly digested. Digesta were analyzed by gas chromatography, liquid chromatography-mass spectrometry, and nuclear magnetic resonance spectroscopy. Besides the formation of di- and monoacylglycerols, degradation of hydroperoxides was detected in ABA- and AAB-type TAGs, whereas oxygenated species increased in tridocosahexaenoin. Ethyl esters were mainly unaffected. EPA was expectedly less susceptible to oxidation prior to and during the digestion process, particularly in sn-2. These results are relevant for the production of tailored omega-3 structures to be used as supplements or ingredients.
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Affiliation(s)
- Gabriele Beltrame
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
| | - Eija Ahonen
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
| | - Annelie Damerau
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
| | | | | | - Kaisa M Linderborg
- Food Sciences, Department of Life Technologies, University of Turku, FI-20014 Turku, Finland
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Damerau A, Ahonen E, Kortesniemi M, Gudmundsson HG, Yang B, Haraldsson GG, Linderborg KM. Docosahexaenoic acid in regio- and enantiopure triacylglycerols: Oxidative stability and influence of chiral antioxidant. Food Chem 2023; 402:134271. [DOI: 10.1016/j.foodchem.2022.134271] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2022] [Revised: 08/01/2022] [Accepted: 09/12/2022] [Indexed: 10/14/2022]
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Crauste C, Galano JM, Guy A, Lehoux J, Durand T, Balas L. Synthesis of fatty acid bioconjugates and related derivatives. European J Org Chem 2022. [DOI: 10.1002/ejoc.202101502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Céline Crauste
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - jean-Marie Galano
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - Alexandre Guy
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - Jordan Lehoux
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - Thierry Durand
- IBMM: Institut des Biomolecules Max Mousseron synthesis of bioactive lipids FRANCE
| | - Laurence Balas
- UMR 5247: Institut des Biomolecules Max Mousseron Synthesis of bioactive lipids 1919 route de Mende 34293 Montpellier Cedex FRANCE
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Separation of triacylglycerols containing allenic and acetylenic fatty acids by enantiomeric liquid chromatography-mass spectrometry. J Chromatogr A 2020; 1623:461161. [DOI: 10.1016/j.chroma.2020.461161] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2020] [Revised: 04/20/2020] [Accepted: 04/22/2020] [Indexed: 01/25/2023]
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Synthesis and enantiospecific analysis of enantiostructured triacylglycerols containing n-3 polyunsaturated fatty acids. Chem Phys Lipids 2020; 231:104937. [PMID: 32603657 DOI: 10.1016/j.chemphyslip.2020.104937] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2020] [Revised: 06/10/2020] [Accepted: 06/20/2020] [Indexed: 12/25/2022]
Abstract
The stereospecific structure of triacylglycerols (TAGs) affects the bioavailability of fatty acids. Lack of enantiopure reference compounds and effective enantiospecific methods have hindered the stereospecific analysis of individual TAGs. Twelve novel enantiostructured AAB-type TAGs were synthesized containing one of the three n-3 polyunsaturated fatty acid: α-linolenic acid (ALA), eicosapentaenoic acid (EPA), or docosahexaenoic acid (DHA) in sn-1 or sn-3 position. These compounds formed six enantiomer pairs, which were separated with recycling high-performance liquid chromatography using chiral columns and UV detection. The chromatographic retention behavior of the enantiomers and the stereospecific elution order were studied. The enantiomer with an n-3 PUFA in the sn-1 position eluted faster than the enantiomer with the n-3 PUFA in the sn-3 position, regardless of the carbon chain length and number of double bonds of the PUFA. TAG enantiomers containing DHA exhibited highly different retention on the chiral column and were separated after the first column, whereas recycling was needed to separate the enantiomer pairs containing ALA or EPA. The system using two identical columns and one mobile phase, without sample derivatization, proved to be very effective also for peak purity assessment, confirming the enantiopurity of the synthesized structured TAGs being higher than 98 % (96 % ee).
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Linderborg KM, Kulkarni A, Zhao A, Zhang J, Kallio H, Magnusson JD, Haraldsson GG, Zhang Y, Yang B. Bioavailability of docosahexaenoic acid 22:6(n-3) from enantiopure triacylglycerols and their regioisomeric counterpart in rats. Food Chem 2019; 283:381-389. [PMID: 30722887 DOI: 10.1016/j.foodchem.2018.12.130] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2018] [Revised: 12/30/2018] [Accepted: 12/31/2018] [Indexed: 01/14/2023]
Abstract
Lack of synthetic enantiospecific triacylglycerols (TAGs) has hindered our understanding of the impact of TAG structure on the absorption and metabolic fate of fatty acids (FAs). In a five-day feeding trial with mildly (n-3) deficient rats, the bioavailability of docosahexaenoic acid [22:6(n-3), DHA] and stearic acid (18:0) from the two different enantiomers of TAG: sn-22:6(n-3)-18:0-18:0 and sn-18:0-18:0-22:6(n-3), and their regioisomeric TAG: sn-18:0-22:6(n-3)-18:0 was compared. Less secretion of fecal DHA was detected from the sn-2 position compared with the sn-1 and sn-3 positions, but no difference was found in DHA content of the fasting plasma or in the weight of the body or organs. 18:0 was lost to feces mainly as cleaved from the primary positions but also as glycerol-bound. The 5-day intervention in rats was long enough to modify the fatty acid profile of plasma phospholipids.
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Affiliation(s)
- Kaisa M Linderborg
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, Finland
| | - Amruta Kulkarni
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, Finland
| | - Ai Zhao
- Department of Nutrition & Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Jian Zhang
- Department of Nutrition & Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing, China
| | - Heikki Kallio
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, Finland
| | | | | | - Yumei Zhang
- Department of Nutrition & Food Hygiene, School of Public Health, Peking University Health Science Center, Beijing, China.
| | - Baoru Yang
- Food Chemistry and Food Development, Department of Biochemistry, University of Turku, Finland.
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Chen JJ, Tsai TH, Liao HR, Chen LC, Kuo YH, Sung PJ, Chen CL, Wei CS. New Sesquiterpenoids and Anti-Platelet Aggregation Constituents from the Rhizomes of Curcuma zedoaria. Molecules 2016; 21:molecules21101385. [PMID: 27763530 PMCID: PMC6272984 DOI: 10.3390/molecules21101385] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2016] [Revised: 10/08/2016] [Accepted: 10/12/2016] [Indexed: 11/24/2022] Open
Abstract
Two new sesquiterpenoids—13-hydroxycurzerenone (1) and 1-oxocurzerenone (2)—have been isolated from the rhizomes of Curcuma zedoaria, together with 13 known compounds (3–15). The structures of two new compounds were determined through spectroscopic and MS analyses. Among the isolated compounds, 13-hydroxycurzerenone (1), 1-oxocurzerenone (2), curzerenone (3), germacrone (4), curcolone (5), procurcumenol (6), ermanin (7), curcumin (8), and a mixture of stigmast-4-en-3,6-dione (12) and stigmasta-4,22-dien-3,6-dione (13) exhibited inhibition (with inhibition % in the range of 21.28%–67.58%) against collagen-induced platelet aggregation at 100 μM. Compounds 1, 5, 7, 8, and the mixture of 12 and 13 inhibited arachidonic acid (AA)-induced platelet aggregation at 100 μM with inhibition % in the range of 23.44%–95.36%.
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Affiliation(s)
- Jih-Jung Chen
- Department of Pharmacy, Tajen University, Pingtung 907, Taiwan.
- Department of Medical Research, China Medical University Hospital, China Medical University, Taichung 404, Taiwan.
| | - Tung-Han Tsai
- Department of Pharmacy, Tajen University, Pingtung 907, Taiwan.
| | - Hsiang-Ruei Liao
- Graduate Institute of Natural Products, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan.
| | - Li-Chai Chen
- Department of Pharmacy, Tajen University, Pingtung 907, Taiwan.
- Department of Pharmacy, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 813, Taiwan.
| | - Yueh-Hsiung Kuo
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, China Medical University, Taichung 404, Taiwan.
- Department of Biotechnology, Asia University, Taichung 413, Taiwan.
| | - Ping-Jyun Sung
- National Museum of Marine Biology and Aquarium, Pingtung 944, Taiwan.
| | - Chun-Lin Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 804, Taiwan.
| | - Chun-Sheng Wei
- Department of Pharmacy, Zuoying Branch of Kaohsiung Armed Forces General Hospital, Kaohsiung 813, Taiwan.
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Kalpio M, Nylund M, Linderborg KM, Yang B, Kristinsson B, Haraldsson GG, Kallio H. Enantioselective chromatography in analysis of triacylglycerols common in edible fats and oils. Food Chem 2015; 172:718-24. [DOI: 10.1016/j.foodchem.2014.09.135] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2014] [Revised: 09/12/2014] [Accepted: 09/23/2014] [Indexed: 10/24/2022]
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12
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Řezanka T, Lukavský J, Sigler K, Nedbalová L, Vítová M. Temperature dependence of production of structured triacylglycerols in the alga Trachydiscus minutus. PHYTOCHEMISTRY 2015; 110:37-45. [PMID: 25564261 DOI: 10.1016/j.phytochem.2014.12.013] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2014] [Revised: 12/10/2014] [Accepted: 12/11/2014] [Indexed: 06/04/2023]
Abstract
This study describes the identification of regioisomers and enantiomers of triacylglycerols of C20 polyunsaturated fatty acids (PUFAs) in the alga Trachydiscus minutus cultivated at different temperatures using reversed- and chiral-phase liquid chromatography-mass spectrometry. The use of the two different phases contributes to ready identification, both qualitative and semiquantitative, of regioisomers and enantiomers of triacylglycerols containing eicosapentaenoic and arachidonic in the molecule. The ratio of regioisomers and enantiomers of triacylglycerols (TAG) depends on the temperature of cultivation; with lowering temperature the proportion of the achiral TAG increases and the enantiomer ratio diverges from 1:1.
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Affiliation(s)
- Tomáš Řezanka
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague, Czech Republic.
| | - Jaromír Lukavský
- Institute of Botany, Academy of Sciences of the Czech Republic, Biorefinery Res. Centre of Competence, Dukelská 135, 379 82 Třeboň, Czech Republic
| | - Karel Sigler
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Vídeňská 1083, 142 20 Prague, Czech Republic
| | - Linda Nedbalová
- Department of Ecology, Faculty of Science, Charles University in Prague, Viničná 7, 128 44 Prague 2, Czech Republic
| | - Milada Vítová
- Institute of Microbiology, Academy of Sciences of the Czech Republic, Laboratory of Cell Cycles of Algae, Centre Algatech, Opatovický mlýn 237, 379 81 Třeboň, Czech Republic
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Mori K. Pheromone synthesis. Part 255: Synthesis and GC–MS analysis of pheromonal triacylglycerols of male Drosophila fruit flies. Tetrahedron 2014. [DOI: 10.1016/j.tet.2014.06.049] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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