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A RAPID METHOD OF TOTAL LIPID EXTRACTION AND PURIFICATION
Abstract
Lipid decomposition studies in frozen fish have led to the development of a simple and rapid method for the extraction and purification of lipids from biological materials. The entire procedure can be carried out in approximately 10 minutes; it is efficient, reproducible, and free from deleterious manipulations. The wet tissue is homogenized with a mixture of chloroform and methanol in such proportions that a miscible system is formed with the water in the tissue. Dilution with chloroform and water separates the homogenate into two layers, the chloroform layer containing all the lipids and the methanolic layer containing all the non-lipids. A purified lipid extract is obtained merely by isolating the chloroform layer. The method has been applied to fish muscle and may easily be adapted to use with other tissues.
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“in addition to gravimetry measurements [14,15], a large panel of chromatography strategies have been developed, like thin-layer chromatography (TLC), high-pressure liquid chromatography (HPLC) and gas chromatography (GC) coupled with mass spectrometry (MS) [16].”
From The use of fluorescent Nile red and BODIPY for lipid measurement in microalgae (2015) · cites this paper as [14]
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Cites
A SIMPLE METHOD FOR THE ISOLATION AND PURIFICATION OF TOTAL LIPIDES FROM ANIMAL TISSUES
Folch, J., Lees, M., & Stanley, G. H. S. (1957) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)64849-5 · Cited by 65,189
PREPARATION OF LIPIDE EXTRACTS FROM BRAIN TISSUE
Folch, J., Ascoli, I., Lees, M. B., Meath, J. A., & Lebaron, F. N. (1951) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)55987-1 · Cited by 1,341
Storage of Frozen Plaice Fillets
Dyer, W. J., & Morton, M. L. (1956) · Journal of the Fisheries Research Board of Canada · doi:10.1139/f56-007 · Cited by 69
Self-citationBonner, W. D. (1910) · The Journal of Physical Chemistry · doi:10.1021/j150116a004 · Cited by 46
Dambergs, N. (1956) · Journal of the Fisheries Research Board of Canada · doi:10.1139/f56-045 · Cited by 18
Research works printed but not linked: 1
- BANCROFT W., 1895, Phys. Iiev., 3, 1
Cited by
Sorted by citations
Items 36,801–36,900 of 48,846
Kald, B., Boll, R. M., Gustafson‐Svärd, C., et al. (1994) · Scandinavian Journal of Gastroenterology · doi:10.3109/00365529409090471 · Cited by 8
Effect of platelet‐activating factor on the growth of human erythroid and myeloid CD34+ progenitors
Dupuis, F., Gachard, N., Allégraud, A., et al. (1998) · Mediators of Inflammation · doi:10.1080/09629359891243 · Cited by 8
Zhou, L., & Nilsson, Å. (1999) · Biochimica et Biophysica Acta (BBA) - Molecular and Cell Biology of Lipids · doi:10.1016/s0005-2760(98)00156-8 · Cited by 8
Sleight, R. G., & Dao, H. T. (1990) · Lipids · doi:10.1007/bf02562212 · Cited by 8
Methods for phospholipid extraction inCandida albicans: an extraction method with high efficacy
Mirbod, F., Mori, S., & Nozawa, Y. (1993) · Medical Mycology · doi:10.1080/02681219380000521 · Cited by 8
Adequacy of a food composition database to estimate fat and fatty acid intake
Lj Primorac, M. L. M. (2000) · International Journal of Food Sciences and Nutrition · doi:10.1080/096374800100877 · Cited by 8
Evidence contrary to the existence of storage lipid in leaves of plants inhabiting cold climates
Hetherington, A. M., Hunter, M. I. S., & Crawford, R. M. M. (1984) · Plant Cell & Environment · doi:10.1111/1365-3040.ep11614677 · Cited by 8
Aepfelbacher, F. C., Weber, P. C., & Aepfelbacher, M. (1995) · Cell Biochemistry and Function · doi:10.1002/cbf.290130106 · Cited by 8
Gómez-Rodríguez, M. V., Luna, J. D. D., & Alvarez‐Tinaut, M. C. (1987) · Journal of Plant Nutrition · doi:10.1080/01904168709363773 · Cited by 8
Bellinger, B. J., Hagerthey, S. E., Newman, S., et al. (2012) · Microbial Ecology · doi:10.1007/s00248-012-0090-2 · Cited by 8
Mita, M., Yasumasu, I., & Nakamura, M. (1995) · Molecular Reproduction and Development · doi:10.1002/mrd.1080400113 · Cited by 8
Wen, X. (1998) · Human Molecular Genetics · doi:10.1093/hmg/7.4.743 · Cited by 8
Lipid Composition of Cyst Stages of Globodera rostochiensis.
Gibson, D. M., Moreau, R. A., McNeil, G. P., et al. (1995) · PubMed · Cited by 8
Fatty acid composition of lipids in tongue and hindleg muscles of muscular dystrophic mice
Futo, T., Hitaka, T., Mizutani, T., et al. (1989) · Journal of the Neurological Sciences · doi:10.1016/0022-510x(89)90062-2 · Cited by 8
Zelinski, M. B., Selivonchick, D. P., & STORMSHAK, F. (1988) · Biology of Reproduction · doi:10.1095/biolreprod38.4.768 · Cited by 8
Samet, J. M., Fonteh, A. N., Galli, S. J., et al. (1996) · Journal of Allergy and Clinical Immunology · doi:10.1016/s0091-6749(96)70202-6 · Cited by 8
Jenkin, H. M., Makino, S., Townsend, D., et al. (1970) · Infection and Immunity · doi:10.1128/iai.2.3.316-319.1970 · Cited by 8
Yong, C. C., Khoo, B. Y., Sasidharan, S., Piyawattanametha, W., Kim, S. H., Khemthongcharoen, N., Chuah, L., Ang, M.-Y., & Liong, M. (2014) · Annals of Microbiology · doi:10.1007/s13213-014-0949-1 · Cited by 9
Shimizu, M., Hayashi, M., Matsuya, K., et al. (2002) · Soil Science & Plant Nutrition · doi:10.1080/00380768.2002.10408715 · Cited by 8
Yu, H., & WILLEMOT, C. (1996) · Plant Science · doi:10.1016/0168-9452(95)04283-0 · Cited by 8
Allen-Gil, S. M., Landers, D. H., Wade, T. L., et al. (1997) · ARCTIC · doi:10.14430/arctic1114 · Cited by 8
Jeanneton, O., Delvaux, M. M., Langlois, Y., Le Bars, P., Bars, J. L., Delisle, M., Frexinos, J., & Bueno, L. P. (1998) · Gut · doi:10.1136/gut.43.3.356 · Cited by 8
Liu, G., Kleine, L. P., Nasrallah, R., et al. (1999) · American Journal of Physiology-Renal Physiology · doi:10.1152/ajprenal.1999.276.4.f589 · Cited by 8
Akyurt, İ., Yılmaz, E., & Mutlu, E. (2006) · Israeli Journal of Aquaculture - Bamidgeh · doi:10.46989/001c.20440 · Cited by 8
Polidori, P., Maggi, G. L., Moretti, V. M., et al. (1993) · Animal Science · doi:10.1017/s0003356100006942 · Cited by 8
Assay of 25-hydroxyvitamin D3 in human plasma by high-performance liquid chromatography.
Matsuyama, N., Okano, T., KAKADA, K., et al. (1979) · Journal of Nutritional Science and Vitaminology · doi:10.3177/jnsv.25.469 · Cited by 8
A Novel Secretory Product of the Rat Enterocyte
Eliakim, R., Carroll, S., Stenson, W. F., et al. (1989) · Cited by 8
SANCHEZ, G. A., MALIK, A., Tougne, C., et al. (1986) · Leprosy Review · doi:10.5935/0305-7518.19860058 · Cited by 8
Dees, C., & Oliver, J. D. (1977) · Biochemical and Biophysical Research Communications · doi:10.1016/0006-291x(77)91218-9 · Cited by 8
Characteristics of the vit mutant egg in Bombyx mori
Fujikawa, K., Kawaguchi, Y., Banno, Y., et al. (1993) · Nihon sanshigaku zasshi · doi:10.11416/kontyushigen1930.62.286 · Cited by 8
Measurement of Platelet Arachidonic Acid Metabolism
Farndale, R. W., Hargreaves, P. G., Dietrich, J. L., et al. (2004) · Humana Press eBooks · doi:10.1385/1-59259-782-3:121 · Cited by 8
Effect of vitamin A nutritional status on the growth of oestrogen-primed chick oviduct
Joshi, P., Murthy, S. K., & Ganguly, J. (1976) · Biochemical Journal · doi:10.1042/bj1540249 · Cited by 8
Surfactant modifies the lymphoproliferative activity of macrophages in hypersensitivity pneumonitis
Israël-Assayag, É., & Cormier, Y. F. (1997) · American Journal of Physiology-Lung Cellular and Molecular Physiology · doi:10.1152/ajplung.1997.273.6.l1258 · Cited by 8
The stability of phospholipids in amniotic fluid
SCHWARTZ, D. B., Engle, M. J., Brown, D. J., et al. (1981) · American Journal of Obstetrics and Gynecology · doi:10.1016/s0002-9378(16)32635-7 · Cited by 8
The Phosphatidylcholine-Lysophosphatidylcholine Cycle
Batenburg, J. J. (1982) · Elsevier eBooks · doi:10.1016/b978-0-12-249701-8.50033-8 · Cited by 8
Paf-Metabolic Enzymes and Paf-like Activity in L. Infantum and L. Major Promastigotes
Chatzovoulos, P., Τσούπρας, Α., Samiotaki, M. K., et al. (2011) · European Journal of Inflammation · doi:10.1177/1721727x1100900303 · Cited by 8
Production of Bio-ethylene From Wastes of Microalgae to Biodiesel Biorefinery
Santos-Panqueva, Y., Fajardo, C. A. G., Cuevas‐Rodríguez, E. O., et al. (2017) · Waste and Biomass Valorization · doi:10.1007/s12649-017-0064-1 · Cited by 8
Newcom, D. W., Baas, T. J., & Stalder, K. J. (2003) · Iowa State University Digital Repository (Iowa State University) · Cited by 8
Lipids associated with bovine kidney glomerular basement membranes
Kibel, G., Heilhecker, A., & von Bruchhausen, F. (1976) · Biochemical Journal · doi:10.1042/bj1550535 · Cited by 8
El-Shintinawy, F., & El‐Shourbagy, M. N. (1997) · Biologia Plantarum · doi:10.1023/a:1000995202327 · Cited by 8
Phospholipid Composition of Human Sperm and Seminal Plasma in Relation to Sperm Fertility
Gulaya, N. M. (2003) · AOCS Publishing eBooks · doi:10.1201/9781439822234.ch5 · Cited by 8
Jensen, P. J., Parkes, C., & Berkowitz, D. B. (1972) · Journal of Bacteriology · doi:10.1128/jb.111.2.351-355.1972 · Cited by 8
PHYSIOLOGICAL CHARACTERIZATION OF SIX LIPID-PRODUCING DIATOMS FROM THE SOUTHEASTERN UNITED STATES
Tadros, M. G., & Johansen, J. R. (1988) · Journal of Phycology · doi:10.1111/j.1529-8817.1988.tb00090.x · Cited by 8
The Hypolipidemic Activity of l-N-3-Methylphthalimido-butan-3-semicarbazone in Rodents
Wong, O. T., Hall, I. H., & Chapman, J. M. (1989) · Pharmaceutical Research · doi:10.1023/a:1015965517279 · Cited by 8
[14] Chromatographic analysis of phospholipase reaction products
Blank, M. L., & Snyder, F. F. C. (1991) · Methods in enzymology on CD-ROM/Methods in enzymology · doi:10.1016/0076-6879(91)97142-l · Cited by 8
Vivar�s, C. P., Martin, B. J., & Ceccaldi, H. J. (1980) · Parasitology Research · doi:10.1007/bf00925457 · Cited by 8
Morikawa, S., Taniguchí, S., Fujii, K., et al. (1987) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(19)75773-1 · Cited by 8
Novel route to preparation of high purity lysoplasmenylethanolamine.
Hanahan, D. J., Nouchi, T., Weintraub, S., et al. (1990) · Journal of Lipid Research · doi:10.1016/s0022-2275(20)42276-x · Cited by 8
Chesney, R. W., Gusowski, N., & Zelikovic, I. (1986) · Pediatric Research · doi:10.1203/00006450-198612000-00024 · Cited by 8
Alam, S. Q., & Shi, Y.-Y. (1997) · Archives of Oral Biology · doi:10.1016/s0003-9969(97)00071-x · Cited by 8
Does de novo synthesis of lysophosphatidylcholine occur in rat lung microsomes?
Aarsman, A. J., & van den BOSCH, H. (1980) · Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism · doi:10.1016/0005-2760(80)90132-0 · Cited by 8
Fatty acid unsaturation increases expression and capping of murine lymphocyte CD44 and CD45
Peck, M. D., Li, Z., Han, T., et al. (1996) · Nutrition · doi:10.1016/s0899-9007(96)00177-3 · Cited by 8
Cost, H., Barreau, P., BASSET, M., et al. (1991) · Cell Biochemistry and Function · doi:10.1002/cbf.290090408 · Cited by 8
Lipid composition of liver peroxisomes isolated from untreated and clofibrate-treated mice and rats
Kyrklund, T., & Meijer, J. (1994) · Comparative Biochemistry and Physiology Part B Comparative Biochemistry · doi:10.1016/0305-0491(94)90129-5 · Cited by 8
Madesh, M., Anup, R., Benard, O., et al. (1999) · Free Radical Biology and Medicine · doi:10.1016/s0891-5849(98)00270-6 · Cited by 8
Bergers, J. J., Otter, W. D., Dullens, H. F. J., et al. (1993) · Cancer Immunology Immunotherapy · doi:10.1007/bf01518522 · Cited by 8
Lichtlé, C., & Dubacq, J. P. (1984) · Journal of Phycology · doi:10.1111/j.0022-3646.1984.00008.x · Cited by 8
Moukha, S., Capdevila, C., Lesage, L., et al. (1991) · Applied Microbiology and Biotechnology · doi:10.1007/bf00164432 · Cited by 8
Depuration kinetics of hexachlorobenzene in the clam, Macoma nasuta
Boese, B. L., Winsor, M. H., Lee, H., et al. (1990) · Comparative Biochemistry and Physiology Part C Comparative Pharmacology · doi:10.1016/0742-8413(90)90016-3 · Cited by 8
Mahfouz, M. M., & Kummerow, F. A. (2001) · Prostaglandins & Other Lipid Mediators · doi:10.1016/s0090-6980(01)00166-6 · Cited by 8
Rumen microbial lipid content and synthesis in cattle: effects of breed, monensin and methionine
O'Kelly, J. C., & Spiers, W. (1990) · Journal of Animal Physiology and Animal Nutrition · doi:10.1111/j.1439-0396.1990.tb00145.x · Cited by 8
Murakami, M., Kudo, I., & Inoue, K. (1992) · Biochimica et Biophysica Acta (BBA) - Lipids and Lipid Metabolism · doi:10.1016/0005-2760(92)90120-k · Cited by 8
Misra, U. K., & Pizzo, S. V. (1996) · PubMed · doi:10.1002/(sici)1097-4644(19960401)61:1%3c39::aid-jcb6%3e3.0.co;2-3 · Cited by 8
Volwerk, J. J., Mrsny, R. J., Patapoff, T. W., et al. (1987) · Biochemistry · doi:10.1021/bi00376a019 · Cited by 8
Sternfeld, L., Thévenod, F., & Schulz, I. (2000) · Archives of Biochemistry and Biophysics · doi:10.1006/abbi.2000.1844 · Cited by 8
Reese, J. H., & Hoss, W. P. (1983) · Neurochemical Research · doi:10.1007/bf00965200 · Cited by 8
Daasvatn, K. O., & Holmsen, H. (1999) · Biochemical Pharmacology · doi:10.1016/s0006-2952(99)00016-7 · Cited by 8
de Catabbi, S. C. B., Setton-Advruj, C. P., Sterin-Speziale, N. B., et al. (2000) · Toxicology · doi:10.1016/s0300-483x(00)00234-1 · Cited by 8
Agglutination of lung surfactant with glucan.
Lucca, A. J. D., Brogden, K. A., & French, A. D. (1992) · Occupational and Environmental Medicine · doi:10.1136/oem.49.11.755 · Cited by 8
Ikemoto, A., Fukuma, A., Fujii, Y. R., & Okuyama, H. (2000) · Journal of Nutrition · doi:10.1093/jn/130.12.3059 · Cited by 8
Lysosomes from rabbit type II cells catabolize surfactant lipids
Rider, E. D., Ikegami, M., Pinkerton, K. E., et al. (2000) · American Journal of Physiology-Lung Cellular and Molecular Physiology · doi:10.1152/ajplung.2000.278.1.l68 · Cited by 8
Tight connection between choline transport and phosphatidylcholine synthesis in MDCK cells
Zlatkine, P., Leroy, C., Moll, G. N., et al. (1996) · Biochemical Journal · doi:10.1042/bj3150983 · Cited by 8
Odahara, T., Akutsu, H., & Kyōgoku, Y. (1990) · Biochemistry · doi:10.1021/bi00477a013 · Cited by 8
Effect of Zinc Deficiency on the Biosynthesis of Phosphatidylcholine in Rat Microsomes
Cornatzer, W. E., Haning, J. A., Wallwork, J. C., et al. (1984) · Biological Trace Element Research · doi:10.1007/bf02989256 · Cited by 8
BOUND PESTICIDE RESIDUES IN PLANTS
Huber, R., & Otto, S. (1983) · Elsevier eBooks · doi:10.1016/b978-0-08-029224-3.50060-5 · Cited by 8
Activation of human ovarian cancer cells: role of lipid factors in ascitic fluid
Xu, Y., & Mills, G. B. (1995) · Springer eBooks · doi:10.1007/978-1-4757-0136-4_13 · Cited by 8
The Hypolipidemic Activity of 3-Iminophthalimidine in Rodents
Voorstad, P. J., Cocolas, G. H., & Hall, I. H. (1984) · Pharmaceutical Research · doi:10.1023/a:1016389801215 · Cited by 8
[5] Glycerophosphate acyltransferase from Escherichia coli
Scheideler, M. A., & Bell, R. M. (1992) · Methods in enzymology on CD-ROM/Methods in enzymology · doi:10.1016/0076-6879(92)09007-p · Cited by 8
Beyer, P. (1987) · Methods in enzymology on CD-ROM/Methods in enzymology · doi:10.1016/0076-6879(87)48038-5 · Cited by 8
[61] Reactivity of plasmalogens to singlet oxygen and radicals
Morand, O. H. (1994) · Methods in enzymology on CD-ROM/Methods in enzymology · doi:10.1016/0076-6879(94)34132-x · Cited by 8
Klein, N. C., & Mindich, L. (1976) · Journal of Bacteriology · doi:10.1128/jb.128.1.337-346.1976 · Cited by 8
Shen, Z., & Byers, D. M. (1994) · Journal of Bacteriology · doi:10.1128/jb.176.1.77-83.1994 · Cited by 8
[The effect of parboiled rice on glycemia in Wistar rats].
Helbig, E., Dias, Á. R. G., Tavares, R. A., Schirmer, M. A., & Elias, M. C. (2008) · PubMed · Cited by 8
Mevalonic acid products as mediators of cell proliferation in simian virus 40-transformed 3T3 cells.
Larsson, O., & Johansson, B. M. (1987) · PubMed · Cited by 8
Sturley, S. L., Culbertson, M. R., & Attie, A. (1991) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(18)55289-3 · Cited by 8
Stokes, G. B., & Tove, S. (1975) · Journal of Biological Chemistry · doi:10.1016/s0021-9258(19)41068-5 · Cited by 8
Regulation of Prostaglandin E2 Production in P388D1 Macrophage‐Like Cellsa
Asmis, R., & Dennis, E. A. (1994) · Annals of the New York Academy of Sciences · doi:10.1111/j.1749-6632.1994.tb52718.x · Cited by 8
Tronchère, H., Tercé, F., Record, M., et al. (1993) · Biochemical Journal · doi:10.1042/bj2930739 · Cited by 8
Acceleration of Phagocytosis in Human Neutrophils Incubated with Gabexate Mesilate
Mikawa, K., Akamatsu, H., Nobuhiro Maekawa, A., et al. (1994) · Journal of International Medical Research · doi:10.1177/030006059402200507 · Cited by 8
Phospholipases A1 and A2 in subcellular fractions and plasma membranes of Krebs II ascites cells.
Record, M., Lloveras, J., Ribes, G., et al. (1977) · PubMed · Cited by 8
Mechanism of hemolysis by Renalin, a CAMP-like protein from Corynebacterium renale
Bernheimer, A. W., & Avigad, L. S. (1982) · Infection and Immunity · doi:10.1128/iai.36.3.1253-1256.1982 · Cited by 8
Lokesh, B. R., Hsieh, H. L., & Kinsella, J. E. (1988) · Nutrition Research · doi:10.1016/s0271-5317(88)80071-x · Cited by 8
SASSEN, L. M. A., Lamers, J. M. J., Hartog, J. M., et al. (1990) · Atherosclerosis · doi:10.1016/0021-9150(90)90069-u · Cited by 8
The hypolipidemic activity of heterocyclic amine boranes in rodents
HALL, I. H., Sood, A., & Spielvoge, B. (1991) · Biomedicine & Pharmacotherapy · doi:10.1016/0753-3322(91)90062-x · Cited by 8
Chen, S., Mariot, R. F., Kirschner, G., et al. (1990) · Rapid Communications in Mass Spectrometry · doi:10.1002/rcm.1290041203 · Cited by 8
Isolation and purification of intralamellar vesicles from Lemna minor L. chloroplasts
Picher, M., GRENIER, G., Purcell, M., et al. (1993) · New Phytologist · doi:10.1111/j.1469-8137.1993.tb03774.x · Cited by 8
Effects of mepanipyrim on lipid metabolism in rats.
Terada, M., Mizuhashi, F., Tomita, T., et al. (1998) · The Journal of Toxicological Sciences · doi:10.2131/jts.23.3_235 · Cited by 8
Dietary lipid and iron modify normal colonic mucosa without affecting phospholipase A2 activity
Kuratko, C. N., & Pence, B. C. (1995) · Cancer Letters · doi:10.1016/0304-3835(95)03885-z · Cited by 8
Heat Stress, Feed Restriction, and the Lipid Composition of Egg Yolk
van Kampen, M. (1983) · Poultry Science · doi:10.3382/ps.0620819 · Cited by 8
Dutta, P. C., Appelqvist, L., & Stymne, S. (1992) · Plant Science · doi:10.1016/0168-9452(92)90024-g · Cited by 8
Metadata
- Authors
- Bligh, E. G., & Dyer, W. J.
- Venue
- Canadian Journal of Biochemistry and Physiology
- Publisher
- Canadian Science Publishing
- Published
- 1959-08-01
- Volume
- 37
- Issue
- 8
- Pages
- 911-917
- ISSN
- 0576-5544 (ISSN-L)
- OpenAlex
- W2152311269
- Cited by
- 54,751
- References
- 5
- Citations by year
- 2026: 1149 · 2025: 1534 · 2024: 1685 · 2023: 1749 · 2022: 1802 · 2021: 2073 · 2020: 2152 · 2019: 1870 · 2018: 1737 · 2017: 1784 · 2016: 1780 · 2015: 1800 · 2014: 1786 · 2013: 1758 · 2012: 1551
- FWCI
- 8.73
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- Canadian Journal of Biochemistry and Physiology (publishedVersion)
- PubMed (publishedVersion)
- Topics
- Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Lipid metabolism and biosynthesis
- Physical Sciences › Chemistry › Organic Chemistry › Edible Oils Quality and Analysis
- Life Sciences › Agricultural and Biological Sciences › Food Science › Food Nutrient Composition and Product Development
- Keywords
- lipid extraction, lipid purification, chloroform-methanol extraction, frozen fish, lipid degradation, fish muscle, tissue homogenization, rapid extraction method
- MeSH terms
- Fishes, Lipids
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