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Träfflista för sökning "WFRF:(Berglund Per) srt2:(1995-1999)"

Search: WFRF:(Berglund Per) > (1995-1999)

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1.	Berglund, Annica, 1972, et al. (author) Spatial distribution of metal ions in spruce wood by synchrotron radiation microbeam X-ray fluorescence analysis 1999 In: Holzforschung. ; 53:5, s. 474-480 Journal article (peer-reviewed)
2.	Berglund, O., et al. (author) Factors influencing organochlorine uptake in age-0 brown trout (Salmo trutta) in lotic environments 1997 In: Can. J. Fish. Aquat. Sci. 54: 2767-2774. ; 54, s. 2767-2774 Journal article (peer-reviewed)
3.	Berglund, Olof, et al. (author) Factors influencing organochlorine uptake in age-0 brown trout (Salmo trutta) in lotic environments 1997 In: Canadian Journal of Fisheries and Aquatic Sciences. - 1205-7533. ; 54:12, s. 2767-2774 Journal article (peer-reviewed)abstract In 1994 and 1995, we investigated the relationship between stream morphology and water chemistry and levels of organochlorines (HCB, PCB, and DDT) in young-of-the-year brown trout (Salmo trutta) from 25 streams in southern Sweden. Contrary to earlier findings for lakes, we found a positive relationship between trophic status (total phosphorus) and uptake of persistent pollutants in stream biota (trout). This difference between benthic, stream environments and pelagic, lake environments may be related to processes affecting pollutant uptake, i.e., pollutant "spiralling" or the shift from heterotrophy to autotrophy in streams. Land use in the catchment area of the streams also affected pollutant levels in trout, with higher levels in agricultural landscapes and lower levels in forested areas. Size of catchment area, however, did not influence uptake of pollutants in trout. The results indicate that eutrophication of streams by agricultural activities and excessive nutrient loading may increase uptake of persistent pollutants in stream biota.
4.	Berglund, Per (author) Candida rugosa lipase as a catalyst in organic media : Enantioselectivity in kinetic resolutions of 2-methylalkanoic acids 1995 Doctoral thesis (other academic/artistic)
5.	Berglund, Per, et al. (author) Chemical Modification of Cysteine Mutants of Subtilisin Bacillus lentus Can Create Better Catalysts Than the Wild-Type Enzyme 1997 In: Journal of the American Chemical Society. - : American Chemical Society (ACS). - 0002-7863 .- 1520-5126. ; 119:22, s. 5265-5266 Journal article (peer-reviewed)
6.	Berglund, Per, et al. (author) Reversed enantiopreference of Candida rugosa lipase supports different modes of binding enantiomers of a chiral acyl donor 1998 In: Journal of Molecular Catalysis - B Enzymatic. - 1381-1177 .- 1873-3158. ; 5:1-4, s. 283-287 Journal article (peer-reviewed)abstract Molecular modelling identifies two different productive modes of binding the enantiomers of a 2-methyldecanoic acid ester to the active site of Candida rugosa lipase (CRL). The fast reacting S-enantiomer occupies the previously identified acyl-binding tunnel of the enzyme, whereas the R- enantiomer leaves the tunnel empty. The modelling suggested that if both enantiomers were forced to bind to the active site leaving the tunnel empty, the enzyme would reverse its enantiopreference to become R-enantioselective. To test this hypothesis, we designed a structural analogue to 2- methyldecanoic acid, 2-methyl-6-(2-thienyl)hexanoic acid, which was expected to be too bulky to fit its acyl moiety into the acyl-binding tunnel. The CRL- catalysed hydrolysis of the ethyl ester of this substrate resulted in the preferential conversion of the R-enantiomer as predicted by molecular modelling. This represents the first kinetic evidence supporting the existence of two different modes of binding the enantiomers of a 2- methyldecanoic acid ester to the active site of CRL. We have shown that a rational 3D based approach in combination with substrate engineering can be used to predict and control the stereochemical outcome of a lipase catalysed reaction.
7.	Berglund, Per, et al. (author) Switched enantiopreference of Humicola lipase for 2-phenoxyalkanoic acid ester homologs can be rationalized by different substrate binding modes 1999 In: Tetrahedron. - 0957-4166 .- 1362-511X. ; 10:21, s. 4191-4202 Journal article (peer-reviewed)abstract Humicola lanuginosa lipase was used for enantioselective hydrolyses of a series of homologous 2-phenoxyalkanoic acid ethyl esters. The enantioselectivity (E-value) of the enzyme changed from an (R)-enantiomer preference for the smallest substrate, 2-phenoxypropanoic acid ester, to an (S)-enantiomer preference for the homologous esters with longer acyl moieties. The E-values span the range from E=13 (R) to E=56 (S). A molecular modeling study identified two different substrate-binding modes for each enantiomer. We found that the enantiomers favored different modes. This discovery provided a model that offered a rational explanation for the observed switch in enantioselectivity. (C) 1999 Elsevier Science Ltd. All rights reserved.
8.	Edlund, Håkan, et al. (author) Resolution of 2-Methylalkanoic Acids : Enantioselective Esterification with Long Chain Alcohols Catalysed by Candida rugosa Lipase 1996 In: Acta Chemica Scandinavica. - : Danish Chemical Society. - 0904-213X. ; 50:8, s. 666-671 Journal article (peer-reviewed)
9.	Eklöv, A, et al. (author) Influence of water quality, habitat and species richness on brown trout, Salmo trutta, L., populations 1999 In: Journal of fish biology. ; 54, s. 33-43 Journal article (peer-reviewed)
10.	Eklöv, A., et al. (author) Response of stream fish to improved water quality: a comparison between the 1960s and 1990s 1998 In: Freshwater Biology 40: 771-782. ; 40, s. 771-782 Journal article (peer-reviewed)

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Type of publication: journal article (19); reports (1); book (1); doctoral thesis (1)

Type of content: peer-reviewed (17); other academic/artistic (3); pop. science, debate, etc. (2)

Author/Editor: Larsson, Per (8); Berglund, Per (6); Berglund, O (5); Eklöv, A. (5); Berglund, Lars (4); Brönmark, C. (4); show more...; Greenberg, Larry (4); Lithell, Hans (3); Berglund, Olof (3); Andersson, Per-Erik (3); Reneland, Richard (3); Eklöv, Anders (3); Brönmark, Christer (2); Lind, L (2); Greenberg, L (2); Hult, Karl (2); Glimelius, Bengt (1); Hansson, Bengt (1); Holmberg, Lars (1); Gerdner, Arne (1); Lind, Lars (1); Nilsson, Anders (1); Berglund, Mats (1); Persson, Anders (1); Okla, Lennart (1); Bremle, Gudrun (1); Backe, Cecilia (1); Okla, L (1); Backe, C (1); Sjödén, Per-Olow (1); Johansson, Birgitta (1); Persson, A. (1); Jensen, M (1); Engström, Per (1); Edlund, Håkan (1); Högberg, Hans-Erik (1); Hedenström, Erik (1); Berglund, Bo (1); Hänni, Arvo (1); Landin, Anne (1); Berglund, Gunilla (1); Holmquist, M (1); Berglund, Annica, 19 ... (1); Brelid, Harald, 1960 (1); Rindby, Anders, 1951 (1); Holmquist, Mats Tors ... (1); DeSantis, Grace (1); Stabile, Michele R. (1); Shang, Xiao (1); Gold, Marvin (1); show less...

University: Royal Institute of Technology (6); Linnaeus University (6); Uppsala University (5); Lund University (4); Karlstad University (3); Jönköping University (1); show more...; Mid Sweden University (1); Chalmers University of Technology (1); Karolinska Institutet (1); show less...

Language: English (21); Swedish (1)

Research subject (UKÄ/SCB): Natural sciences (10); Engineering and Technology (4); Medical and Health Sciences (2); Social Sciences (1)

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