Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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    Non-starch polysaccharides in barley and malt: a mass balance of flour fractionation.
    Viëtor, R.J. ; Voragen, A.G.J. ; Angelino, S.A.G.F. ; Pilnik, W. - \ 1991
    Journal of Cereal Science 14 (1991). - ISSN 0733-5210 - p. 73 - 83.
    Studies on apple protopectin. 4. Apple xyloglucans and influence of pectin extraction treatments on their solubility.
    Renard, C.M.G.C. ; Voragen, A.G.J. ; Thibault, J.F. ; Pilnik, W. - \ 1991
    Carbohydrate Polymers 15 (1991). - ISSN 0144-8617 - p. 387 - 403.
    Effects of the treatment of apple pulp with liquefying enzymes on the aroma of apple juice.
    Jenniskens, L.H.D. ; Voragen, A.G.J. ; Pilnik, W. ; Posthumus, M.A. - \ 1991
    Food Science and Technology = Lebensmittel-Wissenschaft und Technologie 24 (1991). - ISSN 0023-6438 - p. 70 - 92.
    Characterization of polygalacturonases from yeast and fungi.
    Pasculli, R. ; Geraeds, C. ; Voragen, A.G.J. ; Pilnik, W. - \ 1991
    Food Science and Technology = Lebensmittel-Wissenschaft und Technologie 24 (1991). - ISSN 0023-6438 - p. 63 - 70.
    Studies on apple protopectin. 3. Characterization of the material extracted by pure polysaccharidases from apple cell walls.
    Renard, C.M.G.C. ; Schols, H.A. ; Voragen, A.G.J. ; Thibault, J.F. ; Pilnik, W. - \ 1991
    Carbohydrate Polymers 15 (1991). - ISSN 0144-8617 - p. 13 - 32.
    Comparison between enzymatically and chemically extracted pectins from apple cell walls.
    Renard, C.M.G.C. ; Voragen, A.G.J. ; Thibault, J.F. ; Pilnik, W. - \ 1991
    Animal Feed Science and Technology 32 (1991). - ISSN 0377-8401 - p. 69 - 75.
    Studies on apple protopectin. 2. Apple cell wall degradation by pure polysaccharides and their combinations.
    Renard, C.M.G.C. ; Searle-van Leeuwen, M.J.F. ; Voragen, A.G.J. ; Thibault, J.F. ; Pilnik, W. - \ 1991
    Carbohydrate Polymers 14 (1991). - ISSN 0144-8617 - p. 295 - 314.
    Apple juice and concentrated apple juice manufacture with special consideration of use of enzymes: classical-modern-visions for the future.
    Pilnik, W. - \ 1990
    In: Proc. Int. Fruit Juice Symp. '90, Japan (1990) 26 pp
    Carbohydrates in food and feed.
    Pilnik, W. ; Voragen, A.G.J. - \ 1990
    In: Biological sciences - Towards a carbohydrate-based chemistry / Ellwood, D.C., Sargeant, K., Sergheraert, G., van Bekkum, H., Woelk, H.U., - p. 44 - 75.
    Antimutagenic effects of apple juices: Interference with heat load measurement by microbiological methods.
    Ekasari, I. ; Jongen, W.M.F. ; Pilnik, W. - \ 1990
    Journal of Food Science 55 (1990). - ISSN 0022-1147 - p. 1026 - 1028.
    Optimization of the saccharification of xylan by xylan-degrading enzymes in the bioconversion of biomass.
    Kormelink, F.J.M. ; Searle-van Leeuwen, M.J.F. ; Wood, T.M. ; Voragen, A.G.J. ; Pilnik, W. - \ 1990
    In: Proc. 5th EC Conf. Biomass for energy and industry, Vol. 1: Policy, environment, production and harvesting, G. Grassi, G. Gosse, G. dos Santos (eds.). Lisbon, Potugal, 1989. London-New York (1990) 2.66-2.74
    Use of enzymes in food processing.
    Pilnik, W. ; Voragen, A.G.J. - \ 1990
    In: Proc. Int. Conf. Biotechnology and food, 1989, K. Gierschner, W.P. Hammes, W. Hartmeier (eds.). Food Biotechnology 4,1 - p. 319 - 328.
    A simplified method for the determination of the intrinsic viscosity of pectin solutions by classical viscosimetry.
    Kravtchenko, T.P. ; Pilnik, W. - \ 1990
    In: Proc. 5th Int. Conf., Wrexham, 1989. Gums and stabilisers for the Food Industry 5, G.O. Philips, D.J. Wedlock, P.A. Williams (eds.) - p. 281 - 285.
    Pectin - a many splendoured thing.
    Pilnik, W. - \ 1990
    In: Proc. 5th Int. Conf., Wrexham, 1989. Gums and stabilisers for the Food Industry 5, G.O. Philips, D.J. Wedlock, P.A. Williams (eds.) - p. 209 - 221.
    Characterization of mutagenic compound(s) in heated orange juice.
    Indriati Ekasari, ; Berg, H.E. ; Jongen, W.M.F. ; Pilnik, W. - \ 1990
    Food Chemistry 36 (1990). - ISSN 0308-8146 - p. 11 - 18.
    Studies on apple protopectin: I. Extraction of insoluble pectin by chemical means.
    Renard, C.M.G.C. ; Voragen, A.G.J. ; Thibault, J.F. ; Pilnik, W. - \ 1990
    Carbohydrate Polymers 12 (1990). - ISSN 0144-8617 - p. 9 - 25.
    Die Verbesserung der Impraegnierbarkeit von Fichtenholz mittels chemischer und enzymatischer Vorbehandlung
    Militz, H. - \ 1990
    Agricultural University. Promotor(en): W. Pilnik; A.G.J. Voragen. - S.l. : Militz - 220
    bosbouw - bomen - enzymen - hout - houtchemie - houteigenschappen - vloeistoffen (liquids) - gassen - permeabiliteit - organische verbindingen - houtverduurzaming - enzymologie - fermentatie - toedieningswijzen - picea abies - forestry - trees - enzymes - wood - wood chemistry - wood properties - liquids - gases - permeability - organic compounds - wood preservation - enzymology - fermentation - application methods - picea abies

    Finely ground spruce ( Picea abies (L.) Karst. ) was incubated with different enzyme preparations. The enzyme concentration, incubation time, temperature and buffer concentration were varied. The nature and quantity of uronic acids and neutral sugars released from the cell walls were determined. The most effective enzyme preparations were shown to be those with a broad cellulolytic and hemicellulolytic spectrum of activity. Specific pectinases were found not to be particularly effective. Sapwood and heartwood were broken down in equal degrees. Enzymatic preliminary treatment of intact spruce improved the permeability of the timber. The extent of the improvement was dependent on the enzyme preparation applied, the enzyme concentration, the incubation time, the incubation temperature and the origin of the timber. Enzymatic preliminary treatment was more effective in sapwood than in heartwood. Scanning electron microscopy made it possible to demonstrate the decomposition of the torus and the margo of the bordered pits as well as the decomposition of the pits between tracheids and parenchyma. The compression strength and the modulus of elasticity were not reduced. Preliminary treatment of intact spruce with alkali, acids and chelating agents did not result in improved permeability.

    Optimization of the saccharification of xylan by xylan-degrading enzymes in the bioconversion of biomass.
    Kormelink, F.J.M. ; Searle-van Leeuwen, M.J.F. ; Wood, T.M. ; Voragen, A.G.J. ; Pilnik, W. - \ 1989
    In: Abstracts 5th European Conf. Biomass for energy and industry. Gulbenkian Foundation Lisbon, Portugal (1989)
    FPLC-HPLC: a useful combination for screening hemicellulase activities in technical enzyme preparations.
    Kormelink, F.J.M. ; Searle-van Leeuwen, M.J.F. ; Schols, H.A. ; Voragen, A.G.J. ; Pilnik, W. - \ 1989
    In: Proc. Symp. Food science: basic research for technological progress, Wageningen, 1988. J.P. Roozen, F.M. Rombouts and A.G.J. Voragen (eds.). Pudoc, Wageningen - p. 145 - 149.
    Optimization of the saccharification of hemicelluloses in the bioconversion of biomass.
    Kormelink, F.J.M. ; Voragen, A.G.J. ; Searle-van Leeuwen, M.J.F. ; Schols, H.A. ; Pilnik, W. - \ 1989
    In: Proc. 3rd Contractors' Meeting, Paestum, 1988. Energy from biomass 4, G. Grassi, D. Pirrwitz and H. Zibetta (eds.). London, New York - p. 307 - 315.
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