Search Results - "Helsper, Johannes P. F. G."

Physicochemical characterization of titanium dioxide pigments using various techniques for size determination and asymmetric flow field flow fractionation hyphenated with inductively coupled plasma mass spectrometry by Helsper, Johannes P. F. G., Peters, Ruud J. B., van Bemmel, Margaretha E. M., Rivera, Zahira E. Herrera, Wagner, Stephan, von der Kammer, Frank, Tromp, Peter C., Hofmann, Thilo, Weigel, Stefan

“…Seven commercial titanium dioxide pigments and two other well-defined TiO 2 materials (TiMs) were physicochemically characterised using asymmetric flow field…”
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Characterisation and quantification of liposome-type nanoparticles in a beverage matrix using hydrodynamic chromatography and MALDI–TOF mass spectrometry by Helsper, Johannes P. F. G., Peters, Ruud J. B., Brouwer, Lambertus, Weigel, Stefan

“…This paper describes the characterisation of liposome-type nanoparticles (NPs) dispersed in a beverage matrix. Characterisation is based on a two-step…”
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antibody produced in tobacco expressing a hybrid β-1,4-galactosyltransferase is essentially devoid of plant carbohydrate epitopes by Bakker, H, Rouwendal, G.J.A, Karnoup, A.S, Florack, D.E.A, Stoopen, G.M, Helsper, J.P.F.G, Ree, R. van, Die, I. van, Bosch, D

“…N-glycosylation of a mAb may have a major impact on its therapeutic merits. Here, we demonstrate that expression of a hybrid enzyme (called xylGalT),…”
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Expression of natural human β1,4-GalT1 variants and of non-mammalian homologues in plants leads to differences in galactosylation of N-glycans by Hesselink, Thamara, Rouwendal, Gerard J. A, Henquet, Maurice G. L, Florack, Dion E. A, Helsper, Johannes P. F. G, Bosch, Dirk

“…β1,4-Galactosylation of plant N-glycans is a prerequisite for commercial production of certain biopharmaceuticals in plants. Two different types of…”
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Antioxidative and immunomodulating activities of polysaccharide extracts of the medicinal mushrooms Agaricus bisporus, Agaricus brasiliensis, Ganoderma lucidum and Phellinus linteus by Kozarski, Maja, Klaus, Anita, Niksic, Miomir, Jakovljevic, Dragica, Helsper, Johannes P.F.G., Van Griensven, Leo J.L.D.

“…► Mushroom polysaccharide extracts (PSE) contain both α and β glucans. ► Scavenging activity of Phellinus linteus and Ganoderma lucidum PSE is almost as…”
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Translocation of differently sized and charged polystyrene nanoparticles in in vitro intestinal cell models of increasing complexity by Walczak, Agata P., Kramer, Evelien, Hendriksen, Peter J. M., Tromp, Peter, Helsper, Johannes P. F. G., van der Zande, Meike, Rietjens, Ivonne M. C. M., Bouwmeester, Hans

“…Abstract Intestinal translocation is a key factor for determining bioavailability of nanoparticles (NPs) after oral uptake. Therefore, we evaluated three in…”
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Purification and characterization of natural Bet v 1 from birch pollen and related allergens from carrot and celery by Bollen, Mirko A., Garcia, Aranzazu, Cordewener, Jan H. G., Wichers, Harry J., Helsper, Johannes P. F. G., Savelkoul, Huub F. J., van Boekel, Martinus A. J. S.

“…Birch pollen allergy is predominantly caused by the major allergen Bet v 1 and can lead to crossreactions with homologous proteins in food. Two major…”
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Polyunsaturated fatty acids in various macroalgal species from North Atlantic and tropical seas by van Ginneken, Vincent J T, Helsper, Johannes P F G, de Visser, Willem, van Keulen, Herman, Brandenburg, Willem A

“…In this study the efficacy of using marine macroalgae as a source for polyunsaturated fatty acids, which are associated with the prevention of inflammation,…”
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Effects of mushroom-derived β-glucan-rich polysaccharide extracts on nitric oxide production by bone marrow-derived macrophages and nuclear factor-κB transactivation in Caco-2 reporter cells: Can effects be explained by structure by Volman, Julia J, Helsper, Johannes P.F.G, Wei, Song, Baars, Johan J.P, van Griensven, Leo J.L.D, Sonnenberg, Anton S.M, Mensink, Ronald P, Plat, Jogchum

“…Mushrooms are known for their immune-modulating and anti-tumour properties. The polysaccharide fraction, mainly β-glucans, is responsible for the…”
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Efficient introduction of a bisecting GlcNAc residue in tobacco N-glycans by expression of the gene encoding human N-acetylglucosaminyltransferase III by Rouwendal, Gerard J.A., Wuhrer, Manfred, Florack, Dion E.A., Koeleman, Carolien A.M., Deelder, André M., Bakker, Hans, Stoopen, Geert M., van Die, Irma, Helsper, Johannes P.F.G., Hokke, Cornelis H., Bosch, Dirk

“…In this study, we show that introduction of human N-acetylglucosaminyltransferase (GnT)-III gene into tobacco plants leads to highly efficient synthesis of…”
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Synthesis of Lewis X epitopes on plant N-glycans by Rouwendal, Gerard J.A., Florack, Dion E.A., Hesselink, Thamara, Cordewener, Jan H., Helsper, Johannes P.F.G., Bosch, Dirk

“…Glycoproteins from tobacco line xFxG1, in which expression of a hybrid β-(1→4)-galactosyltransferase (GalT) and a hybrid α-(1→3)-fucosyltransferase IXa (FUT9a)…”
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Response of selected antioxidants and pigments in tissues of Rosa hybrida and Fuchsia hybrida to supplemental UV-A exposure by Helsper, Johannes P. F. G., Ric de Vos, C. H., Maas, Frank M., Jonker, Harry H., Van Den Broeck, Hetty C., Jordi, Wilco, Pot, C. Sander, Keizer, L. C. Paul, Schapendonk, Ad H. C. M.

“…The effect of supplemental UV‐A (320–400 nm) radiation on tissue absorption at 355 nm, levels of various antioxidants (ascorbate, glutathione, carotenoids and…”
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Quadrupole time-of-flight mass spectrometry: A method to study the actual expression of allergen isoforms identified by PCR cloning by Helsper, Johannes P.F.G., Gilissen, Luud J.W.J., van Ree, Ronald, America, Antoine H.P., Cordewener, Jan H.G., Bosch, Dirk

“…Background: Over the past 2 decades, molecular biology has shown that most major allergens exist in multiple isoforms. Very little is known about the relevance…”
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Circadian rhythmicity in emission of volatile compounds by flowers of Rosa hybrida L. cv. Honesty by Helsper, J.P.F.G, Davies, J.A, Bouwmester, H.J, Krol, A.F, Kampen, M.H. van

“…Quantitative headspace analyses of rose flowers showed no significant differences in composition of emitted volatile compounds between flowers on the intact…”
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Synthesis of mono- and digalactosyldiacylglycerol in isolated spinach chloroplasts by Heemskerk, J.W.M, Bogemann, G, Helsper, J.P.F.G, Wintermans, J.F.G.M

“…Purified, intact chloroplasts of Spinacia oleracea L. synthesize galactose-labeled mono- and digalactosyldiacylglycerol (MGDG and DGDG) from…”
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Antinutritional factors in faba beans (Vica faba L.) as affected by breeding toward the absence of condensed tannins by Helsper, Johannes P. F. G, Hoogendijk, Johanna M, van Norel, Arend, Burger-Meyer, Karin

“…The effect of genetic removal of condensed tannins on the levels of other antinutritional factors in faba beans (Vicia faba L.) has been studied by comparison…”
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Growth of Broiler Chicks Fed Diets Containing Tannin-Free and Tannin-Containing Near-Isogenic Lines of Faba Bean (Vicia faba L.) by Helsper, Johannes P. F. G, van Loon, Ywan P. J, Kwakkel, René P, van Norel, Arend, van der Poel, Antonius F. B

“…Seeds from six pairs of near-isogenic lines of Vicia faba L., each pair consisting of a tannin-free (TF) and a tannin-containing (TC) partner line, were used…”
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Expression of natural human beta 1,4-GalT1 variants and of non-mammalian homologues in plants leads to differences in galactosylation of N-glycans by Hesselink, Thamara, Rouwendal, Gerard JA, Henquet, Maurice GL, Florack, Dion EA, Helsper, Johannes PFG, Bosch, Dirk

“…beta 1,4-Galactosylation of plant N-glycans is a prerequisite for commercial production of certain biopharmaceuticals in plants. Two different types of…”
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Expression of natural human [beta]1,4-GalT1 variants and of non-mammalian homologues in plants leads to differences in galactosylation of N-glycans by Hesselink, Thamara, Rouwendal, Gerard J; A, Henquet, Maurice G; L, Florack, Dion E; A, Helsper, Johannes P; F; G, Bosch, Dirk

“…[beta]1,4-Galactosylation of plant N-glycans is a prerequisite for commercial production of certain biopharmaceuticals in plants. Two different types of…”
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Effects of mushroom-derived b-glucan-rich polysaccharide extracts on nitric oxide production by bone marrow-derived macrophages and nuclear factor-kB transactivation in Caco-2 reporter cells: Can effects be explained by structure? by Volman, Julia J, Helsper, Johannes P F G, Wei, Song, Baars, Johan J P, van Griensven, Leo J L D, Sonnenberg, Anton S M, Mensink, Ronald P, Plat, Jogchum

“…Mushrooms are known for their immune-modulating and anti-tumour properties. The polysaccharide fraction, mainly -glucans, is responsible for the…”
Get full text