The potassium chloride-soluble carrageenans of the red seaweed Iridaea undulosa B
The potassium chloride-soluble fraction of carrageenan from the red seaweed Iridaea undulosa Bory contains both μ-like and λ-like carrageenans. These were partly separated by extraction with hot dimethyl sulfoxide, and characterized by methylation analysis, both before and after alkaline modificatio...
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1986
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| Acceso en línea: | Registro en Scopus DOI Handle Registro en la Biblioteca Digital |
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| LEADER | 06044caa a22006617a 4500 | ||
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| 001 | PAPER-998 | ||
| 003 | AR-BaUEN | ||
| 005 | 20230518203021.0 | ||
| 008 | 190411s1986 xx ||||fo|||| 00| 0 eng|d | ||
| 024 | 7 | |2 scopus |a 2-s2.0-0343118015 | |
| 040 | |a Scopus |b spa |c AR-BaUEN |d AR-BaUEN | ||
| 030 | |a CRBRA | ||
| 100 | 1 | |a Stortz, C.A. | |
| 245 | 1 | 4 | |a The potassium chloride-soluble carrageenans of the red seaweed Iridaea undulosa B |
| 260 | |c 1986 | ||
| 270 | 1 | 0 | |m Cerezo, A.S.; Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales (UBA), Pabellon 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina |
| 506 | |2 openaire |e Política editorial | ||
| 504 | |a Smith, Cook, (1953) Arch. Biochem. Biophys., 45, pp. 232-233 | ||
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| 504 | |a Anderson, Rees, (1966) Proc. Int. Seaweed Symp., pp. 243-249. , 5th | ||
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| 504 | |a Pernas, Smidsrød, Larsen, Haug, (1967) Acta Chem. Scand., 21, pp. 98-110 | ||
| 504 | |a Smidsrød, Larsen, Pernas, Haug, The Effect of Alkali Treatment on the Chemical Heterogeneity and Physical Properties of Some Carrageenans. (1967) Acta Chemica Scandinavica, 21, pp. 2585-2598 | ||
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| 504 | |a Masson, THE DEGRADATION OF CARRAGEENIN: I. KINETICS IN AQUEOUS SOLUTION AT pH 7 (1955) Canadian Journal of Chemistry, 33, pp. 597-603 | ||
| 504 | |a Stortz, Matulewicz, Cerezo, (1982) Carbohydr. Res., 111, pp. 31-39 | ||
| 504 | |a Björndal, Lindberg, Svensson, Gas-Liquid Chromatography of Partially Methylated Alditols as their Acetates. (1967) Acta Chemica Scandinavica, 21, pp. 1801-1804 | ||
| 504 | |a Manzi, Mazzini, Cerezo, (1984) Carbohydr. Res., 125, pp. 127-143 | ||
| 504 | |a Guthrie, (1962) Methods Carbohydr. Chem., 1, pp. 435-441 | ||
| 504 | |a Matulewicz, Cerezo, The carrageenan fromIridaea undulosa B.; Analysis, fractionation and alkaline treatment (1980) Journal of the Science of Food and Agriculture, 31, pp. 203-213 | ||
| 504 | |a Haworth, (1915) J. Chem. Soc., 107, pp. 8-16 | ||
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| 504 | |a Lawson, Rees, Stancioff, Stanley, J. Chem. Soc. (1973) J. Chem. Soc., pp. 2177-2182. , Perkin Trans. 1 | ||
| 504 | |a Dolan, Rees, 649. The carrageenans. Part II. The positions of the glycosidic linkages and sulphate esters in ?-carrageenan (1965) Journal of the Chemical Society (Resumed), pp. 3534-3539 | ||
| 504 | |a Matulewicz, Cerezo, (1980) Phytochemistry, 19, pp. 2639-2641 | ||
| 504 | |a Johnston, Percival, 408. The polysaccharides of carragheen. Part III. Confirmation of the 1 : 3-linkage in carragheenin, and the isolation of L-galactose derivatives from a resistant fragment (1950) Journal of the Chemical Society (Resumed), pp. 1994-1998 | ||
| 504 | |a Parolis, (1981) Carbohydr. Res., 93, pp. 261-267 | ||
| 504 | |a Penman, Rees, J. Chem. Soc. (1973) J. Chem. Soc., pp. 2182-2187. , Perkin Trans. 1 | ||
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| 520 | 3 | |a The potassium chloride-soluble fraction of carrageenan from the red seaweed Iridaea undulosa Bory contains both μ-like and λ-like carrageenans. These were partly separated by extraction with hot dimethyl sulfoxide, and characterized by methylation analysis, both before and after alkaline modification. In addition to regions composed of μ- or λ-type repeating units, both fractions contained regions of structural irregularity. Unusual units were found in these last regions, namely: (a) 2- and 6-linked galactose residues, (b) 3-linked, 6-sulfated and 2,6-disulfated residues, and (c) a small amount of branching with galacto- and xylo-pyranose units as nonreducing end groups. The determination of the changes in composition of the samples as a function of the number of methylation steps provided confidence in assignments of structural significance to minor components. These were characterized by g.l.c. and computerized g.l.c.-m.s. techniques under carefully chosen operating conditions, using two different sets of derivatives. © 1986. |l eng | |
| 536 | |a Detalles de la financiación: United Nations Educational, Scientific and Cultural Organization, ROSTLAC 036/84 | ||
| 536 | |a Detalles de la financiación: We are indebted to the UMYMFOR (CONICET-FCEyN) for technical assistance.T his work was supported by grants from the Consejo National de InvestigacionesC ientificasy Tecnicasa ndfrom the UNESCO (ROSTLAC 036/84). | ||
| 593 | |a Departamento de Química Orgánica, Facultad de Ciencias Exactas y Naturales (UBA), Pabellon 2, Ciudad Universitaria, 1428 Buenos Aires, Argentina | ||
| 700 | 1 | |a Cerezo, A.S. | |
| 773 | 0 | |d 1986 |g v. 145 |h pp. 219-235 |k n. 2 |p Carbohydr. Res. |x 00086215 |w (AR-BaUEN)CENRE-301 |t Carbohydrate Research | |
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