%0 Journal Article %1 STOKKE1993a %A STOKKE, B. T. %A SMIDSROD, O. %A BRANT, D. A. %C THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB %D 1993 %I ELSEVIER SCI LTD %J Carbohydr. Polym. %K ;; [ISI:] acid c-13-nmr; chain; chitins chitosans; conformational deacetylated energy; field gelling nmr-spectroscopy; properties; residues; statistics; %N 1 %P 57 -- 66 %T PREDICTED INFLUENCE OF MONOMER SEQUENCE DISTRIBUTION AND ACETYLATION ON THE EXTENSION OF NATURALLY-OCCURRING ALGINATES %V 22 %X The effects of statistical monomer distribution and random substitution on the properties of carbohydrate co-polymers is illustrated by calculating the relative extension of different alginates selectively acetylated on one of the residues. The calculations were carried out using the rigid-residue approximation for primary sequences simulated for five natural alginates. The effect of acetylation was taken into account by calculating the perturbation of the nearest-neighbour residue interactions that result from interactions of the substituent groups with the polymer backbone. The calculations of the chain stiffness of the five different alginate sources shows the experimentally determined trends. Acetylation results in a restriction of the conformational freedom of the backbone residues, yielding an increase of up to 20% in the chain extension.

@article{STOKKE1993a, __markedentry = {[phpts:6]}, abstract = {The effects of statistical monomer distribution and random substitution on the properties of carbohydrate co-polymers is illustrated by calculating the relative extension of different alginates selectively acetylated on one of the residues. The calculations were carried out using the rigid-residue approximation for primary sequences simulated for five natural alginates. The effect of acetylation was taken into account by calculating the perturbation of the nearest-neighbour residue interactions that result from interactions of the substituent groups with the polymer backbone. The calculations of the chain stiffness of the five different alginate sources shows the experimentally determined trends. Acetylation results in a restriction of the conformational freedom of the backbone residues, yielding an increase of up to 20% in the chain extension.}, added-at = {2011-11-04T13:47:04.000+0100}, address = {THE BOULEVARD, LANGFORD LANE, KIDLINGTON, OXFORD, OXON, ENGLAND OX5 1GB}, author = {STOKKE, B. T. and SMIDSROD, O. and BRANT, D. A.}, authoraddress = {UNIV TRONDHEIM,DEPT BIOTECHNOL,NORWEGIAN BIOPOLYMER LAB,N-7034 TRONDHEIM,NORWAY. ; UNIV CALIF IRVINE,DEPT CHEM,IRVINE,CA 92717.}, biburl = {https://www.bibsonomy.org/bibtex/2f32861d9271d8c4f537328e91be5fa0a/pawelsikorski}, citedref = {ARNOTT S, 1972, J CHEM SOC PERK T 2, V2, P324 ; BOWEN HJM, 1958, TABLES INTERATOMIC D ; BRANT DA, 1975, MACROMOLECULES, V8, P522 ; BRANT DA, 1976, Q REV BIOPHYS, V9, P527 ; BRANT DA, 1985, BIOTECHNOLOGY MARINE, P30 ; BRANT DA, 1990, ACS SYM SER, V430, P42 ; BULIGA GS, 1986, CARBOHYD RES, V157, P139 ; BULIGA GS, 1987, INT J BIOL MACROMOL, V9, P77 ; FRENCH AD, 1990, COMPUTER MODELING CA ; GOEBEL CV, 1970, MACROMOLECULES, V3, P644 ; GRASDALEN H, 1979, CARBOHYD RES, V68, P21 ; GRASDALEN H, 1981, CARBOHYD RES, V89, P179 ; GRASDALEN H, 1983, CARBOHYD RES, V118, P255 ; HALLMAN GM, 1973, MACROMOLECULES, V6, P386 ; HEYRAUD A, 1990, FOOD HYDROCOLLOIDS, V4, P59 ; JORDAN RC, 1978, BIOPOLYMERS, V17, P2617 ; LARSEN B, 1969, ACTA CHEM SCAND, V23, P355 ; LARSEN B, 1981, 10TH P INT SEAW S, P7 ; MACKIE W, 1983, INT J BIOL MACROMOL, V5, P329 ; MARTINSEN A, 1991, CARBOHYD POLYM, V15, P171 ; SANDFORD PA, 1983, POLYSACCHARIDES, V2, P411 ; SKJAKBRAEK G, 1986, INT J BIOL MACROMOL, V8, P330 ; SKJAKBRAEK G, 1989, CARBOHYD RES, V185, P119 ; SKJAKBRAEK G, 1989, CARBOHYD RES, V185, P131 ; SMIDSROD O, 1969, MACROMOLECULES, V2, P42 ; SMIDSROD O, 1971, BIOPOLYMERS, V10, P1213 ; SMIDSROD O, 1973, CARBOHYD RES, V27, P107 ; STOKKE BT, 1991, MACROMOLECULES, V24, P4637 ; STOKKE BT, 1993, CARBOHYD POLYM, V21, P39 ; STOKKE BT, 1993, UNPUB INFLUENCE AQUE ; VARUM KM, 1991, CARBOHYD RES, V211, P17 ; VARUM KM, 1991, CARBOHYD RES, V217, P19 ; WHITTINGTON SG, 1971, BIOPOLYMERS, V10, P1481}, interhash = {4acc051cc33432f4ae2d9613eb637acb}, intrahash = {f32861d9271d8c4f537328e91be5fa0a}, isifile-dt = {Article}, isifile-ga = {MJ204}, isifile-j9 = {CARBOHYD POLYM}, isifile-nr = {33}, isifile-pi = {OXFORD}, isifile-rp = {STOKKE, BT, UNIV TRONDHEIM,DEPT PHYS,NORWEGIAN BIOPOLYMER LAB,N-7034 ; TRONDHEIM,NORWAY.}, isifile-sc = {Chemistry, Applied; Chemistry, Organic; Polymer Science}, isifile-tc = {6}, issn = {0144-8617}, journal = {Carbohydr. Polym.}, keywords = {;; [ISI:] acid c-13-nmr; chain; chitins chitosans; conformational deacetylated energy; field gelling nmr-spectroscopy; properties; residues; statistics;}, language = {English}, number = 1, owner = {phpts}, pages = {57 -- 66}, publisher = {ELSEVIER SCI LTD}, size = {10 p.}, sourceid = {ISI:A1993MJ20400008}, timestamp = {2011-11-04T13:47:24.000+0100}, title = {PREDICTED INFLUENCE OF MONOMER SEQUENCE DISTRIBUTION AND ACETYLATION ON THE EXTENSION OF NATURALLY-OCCURRING ALGINATES}, volume = 22, year = 1993 }