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Erickson, D.P. (author), Renzetti, S. (author), Jurgens, A. (author), Campanella, O.H. (author), Hamaker, B.R. (author)Viscoelastic properties have been observed in maize zein above its glass transition temperature; however, current understanding of how these viscoelastic polymers can be further manipulated for optimal performance is limited. Using resins formed via precipitation from aqueous ethanolic environments, this study presents a framework for...article 2014
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Steeneken, P.A.M. (author), Woortman, A.J.J. (author), Oudhuis, A.A.C.M. (author), TNO Kwaliteit van Leven (author)The thickening functionality of four acetylated di-starch adipates with variations in starch source and amylose and adipate contents was evaluated in a simplified small-scale model sauce system at fourteen processing conditions with variations in temperature, shear, and pH. A processing stability factor for a given starch was defined as a...article 2011
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Maathuis, A. (author), Hoffman, A. (author), Evans, A. (author), Sanders, L. (author), Venema, K. (author), TNO Kwaliteit van Leven (author)OBJECTIVE: To investigate the effect of 5 newly developed maize-based fibers on the activity and composition of the microbiota in the colon. The fibers tested were glucose-based and had variable structures, including 2 resistant starch preparations, soluble corn fiber, pullulan, and soluble fiber dextrin. METHODS: The fibers were predigested,...article 2009
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Steeneken, P.A.M. (author), Woortman, A.J.J. (author), TNO Kwaliteit van Leven (author)The aim of this work was to identify the transitions in the complex DSC profiles of potato starch at a low water content. Preparative DSC involves the thermal processing of samples in stainless steel DSC pans in a way that allows their subsequent structural characterization. The low temperature (LT), dual melting (M1-M2), and high temperature ...article 2009
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Shi, Y. (author), Xu, X. (author), Zhu, Y. (author), TNO Kwaliteit van Leven (author)Verticillium lecanii is an entomopathogen with high potential in biological control of pests. We developed a solid-state fermentation with sugarcane bagasse as carrier absorbing liquid medium to propagate V. lecanii spores. Using statistical experimental design, we optimized the medium composition for spore production. We first used one-factor...article 2009
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Blum, R. (author), Kiy, T. (author), Waalkens-Berendsen, I. (author), Wong, A.W. (author), Roberts, A. (author), TNO Kwaliteit van Leven (author)Polyunsaturated fatty acids, including docosahexaenoic acid (DHA), are natural constituents of the human diet. DHA-algal oil is produced through the use of the marine protist, Ulkenia sp. The reproductive toxicity of DHA-algal oil was assessed in a one-generation study. Rats were provided diets containing DHA-algal oil at concentrations of 1.5,...article 2007
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Normén, L. (author), Ellegård, L. (author), Brants, H. (author), Dutta, P. (author), Andersson, H. (author), TNO Kwaliteit van Leven (author)The aim of this study was to quantify seven specific dietary phytosterols (PS) (campesterol, β-sitosterol, stigmasterol, brassicasterol, 5-avenasterol, β-sitostanol and campestanol) in fatty foods. Gas-liquid chromatography procedure was applied to 87 items of Swedish and Dutch origin. In general, β-sitosterol was the dominating phytosterol (60%...article 2007
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Lankhorst, C. (author), Tran, Q.D. (author), Havenaar, R. (author), Hendriks, W.H. (author), van der Poel, A.F.B. (author), TNO Kwaliteit van Leven (author)Commercially available dry dog foods are often manufactured using extrusion cooking. Normal extrusion conditions can promote Maillard reactions involving the amino acid lysine. This non-enzymatic browning reaction occurs between a carbonyl group and an amino group in a diet. This study investigated the influence of a number of extrusion...article 2006
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de Wijk, R.A. (author), Prinz, J.F. (author), Janssen, A.M. (author), TNO Kwaliteit van Leven (author)A number of in vitro and in vivo instrumental tests have been developed to reflect various aspects of the perceived oral texture of starch-based vanilla custard desserts. These tests include measurements of the food's infra-red reflectance (IRR), of the turbidity of spat-out rinse water, and of the friction between the food and the oral tissue....article 2006
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Fässler, C. (author), Arrigoni, E. (author), Venema, K. (author), Hafner, V. (author), Brouns, F. (author), Amadò, R. (author), TNO Kwaliteit van Leven (author)Background: Resistant starch (RS) is known for potential health benefits in the human colon. To investigate these positive effects it is important to be able to predict the amount, and the structure of starch reaching the large intestine. Aim of the study: The aim of this study was to compare two different in vitro models simulating the...article 2006
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Lina, B.A.R. (author), Wolterbeek, A.P.M. (author), Suwa, Y. (author), Fujikawa, S. (author), Ishikura, Y. (author), Tsuda, S. (author), Dohnalek, M. (author), TNO Kwaliteit van Leven (author)Polyunsaturated fatty acids (PUFAs), such as arachidonic acid (ARA) and docosahexaenoic acid (DHA) are natural constituents found in human milk, fish oil or egg yolk. Until recently, infant formulas, though providing the essential fatty acid precursors for these PUFAs, did not contain preformed ARA or DHA. In this study the safety of SUNTGA40S...article 2006
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Delaney, B. (author), de Vogel, N. (author), Krul, C.A.M. (author), TNO Voeding (author)Chemicals / CAS: corn oil, 8001-30-7; mitomycin C, 50-07-7, 74349-48-7; Glucans; Mutagensarticle 2004
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Arts, J.H.E. (author), Muijser, H. (author), Appel, M.J. (author), Kuper, C.F. (author), Bessems, J.G.M. (author), Woutersen, R.A. (author), TNO Voeding (author)The subacute oral and inhalation toxicity of furfural vapour was studied in Fischer 344 rats to investigate whether route-to-route extrapolation could be employed to derive the limit value for inhalation exposure from oral toxicity data. Groups of 5 rats per sex were treated by gavage daily for 28 days at dose levels of 6-192 mg/kg bw/day, or...article 2004
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Dommels, Y.E.M. (author), Heemskerk, S. (author), van den Berg, H. (author), Alink, G.M. (author), van Bladeren, P.J. (author), van Ommen, B. (author)Modulating effects of high fat fish oil (HFFO) and high fat corn oil (HFCO) diets on azoxymethane (AOM)-induced colonic aberrant crypt foci (ACF) were studied in male F344 rats following 8 weeks of dietary treatment. The incidence of AOM-induced ACF was significantly lower in the proximal colon of rats fed the HFFO diets compared with rats fed...article 2003
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Cone, J.W. (author), van Gelder, A.H. (author), Bachmann, H. (author), Hindle, V.A. (author)Organic matter (OM) degradation of 21 feedstuffs was investigated with rumen fluid using a rumen in situ technique and a gas production technique. Fitting the nylon bag data to an exponential model showed that there was a high variation in the rate of OM degradation ranging from 1.7% h-1 for protected solvent extracted soybean meal to 10.5% h-1...article 2002
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Gierus, M. (author), Schwarz, F.J. (author), Kirchgessner, M. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)In three separate trial series (TS) the effect of diet composition on selenium (Se) status of dairy cows were investigated. Diets were formulated based mainly on grass (TS1), grass silage (TS2) or maize silage (TS3) with different levels of Se supplementation. Each TS comprised a total of 30 dairy cows and contained one treatment group without...article 2002
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van der Maarel, M.J.E.C. (author), van der Veen, B. (author), Uitdehaag, J.C.M. (author), Leemhuis, H. (author), Dijkhuizen, L. (author), Centraal Instituut voor Voedingsonderzoek TNO (author)Starch is a major storage product of many economically important crops such as wheat, rice, maize, tapioca, and potato. A large-scale starch processing industry has emerged in the last century. In the past decades, we have seen a shift from the acid hydrolysis of starch to the use of starch-converting enzymes in the production of maltodextrin,...article 2002
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Woutersen, R.A. (author), Jonker, D. (author), Stevenson, H. (author), te Biesebeek, J.D. (author), Slob, W. (author), Instituut CIVO-Toxicologie en Voeding TNO (author)The OECD study design, aimed at obtaining a no-observed-adverse-effect level (NOAEL), may be suboptimal for deriving a benchmark dose. Therefore the present subacute (28-day) study was carried out to evaluate a multiple dose study design and to compare the results with the common OECD design. Seven groups of 10 female rats each were...article 2001
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Lake, B.G. (author), Rumsby, P.C. (author), Price, R.J. (author), Cunninghame, M.E. (author), TNO BIBRA TNO Kwaliteit van Leven (author)The objective of this study was to evaluate species differences in the hepatic effects of three potent rodent peroxisome proliferators, namely methylclofenapate (MCP), ciprofibrate (CIP) and Wy-14,643 (WY), particularly with respect to effects on replicative DNA synthesis and transforming growth factor-β1 (TGF-β1) gene expression. Male Sprague...article 2000
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Edwards, A.J. (author), Price, R.J. (author), Renwick, A.B. (author), Lake, B.G. (author), TNO BIBRA TNO Kwaliteit van Leven (author)The ability of coumarin to induce UDS in male Sprague-Dawley CD rat hepatocytes in vivo was assessed using the unscheduled DNA synthesis (UDS) assay. From a preliminary toxicity study the oral maximum tolerated dose (MTD) of coumarin was determined to be 320mg/kg body weight. For the UDS studies, rats were treated with 0 (corn oil control), 32 ...article 2000
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