R. Verkerk

Development of colour of broccoli heads as affected by controlled atmosphere storage and temperature (2009)

Schouten, R.E., Zhang, X., Verkerk, R., Verschoor, J.A., Otma, E.C., Tijskens, L.M.M., ...

Colour is one of the most important quality attributes of broccoli. Yellowing due to senescence of broccoli florets is the main external quality problem. Controlled atmosphere (CA) storage is a very...

Modelling the level of the major glucosinolates in broccoli as affected by controlled atmosphere and temperature (2009)

Schouten, R.E., Zhang, X., Verkerk, R., Verschoor, J.A., Otma, E.C., Tijskens, L.M.M., ...

This study describes the effects of controlled atmosphere (CA) and temperature on glucosinolate (GLS) levels in broccoli. Gas exchange rates were measured in three climate rooms with twelve...

Differences in Thermal Stability of Glucosinolates in Five Brassica Vegetables (2009)

Dekker, M., Hennig, K., Verkerk, R.

The thermal stability of individual glucosinolates within five different Brassica vegetables was studied at 100°C for different incubation times up to 120 minutes. Three vegetables that were used in...

Kinetics of Changes in Glucosinolate Concentrations during Long-Term Cooking of White Cabbage (Brassica oleracea L. ssp. capitata f. alba) (2008)

Volden, J., Wicklund, T., Verkerk, R., Dekker, M.

Brassica vegetables are the predominant dietary source of glucosinolates (GLS) that can be degraded in the intestinal tract into isothiocyanates, which have been shown to possess anticarcinogenic...

Economic incentives for improving mango quality in Costa Rica (2008)

Zuniga Arias, G., Ruben, R., Verkerk, R.

Quantitative trait loci for glucosinolate accumulation in Brassica rapa leaves (2008)

Lou, P, Zhao, J, He, H, Hanhart, C, Verkerk, R, ...

Quantitative trait loci for glucosinolate accumulation in Brassica rapa leaves (2008)

Lou, P., Zhao, Jianjun, He, Hongju, Hanhart, C.J., Verkerk, R., ...

Glucosinolates and their breakdown products have been recognized for their effects on plant defense, human health, flavor and taste of cruciferous vegetables. Despite this importance, little is known...

Glucosinolates (2008)

Verkerk, R., Dekker, M.

Delivering Health Promoting Compounds to Consumers - QACCP Chain Analysis and Modelling of Glucosinolates in Brassica Vegetables (2008)

Dekker, M., Verkerk, R.

Quantitative trait loci for glucosinolate accumulation in Brassica rapa leaves (2008)

Lou, P., Zhao, J., He, Hongju, Hanhart, C.J., Pino, D., Verkerk, R., ...

Glucosinolates and their breakdown products have been recognized for their effects on plant defense, human health, flavor and taste of cruciferous vegetables. Despite this importance, little is known...

Glucosinolates (2008)

Verkerk, R., Dekker, M.

Invloeden van bewerking en bereiding op belangrijke voedingsstoffen in groente en fruit; wat gebeurt er met deze stoffen van grond tot mond? (2007)

Dekker, M., Verkerk, R.

Quality Analysis Critical Control Points in consumer-oriented agro-food chains (2007)

Verkerk, R., Linnemann, A.R.

Case study: development of a ready-to-eat meal for the health-conscious consumer (2007)

Benner, M., Verkerk, R.

Consumer-driven food product development (2006)

Linnemann, A.R., Benner, M., Verkerk, R.

Food product development needs to be based on consumers' needs and wishes to be successful. Factors that have become relevant in this respect are presented and their impact discussed, like...

Modelling the Effect of Processing on Bioactive Food Compounds; a Case on Industrial and Domestic Processing of Brassica Vegetables (2006)

Dekker, M., Verkerk, R.

Modelling the Effect of Processing on Bioactive Food Compounds; a Case on Industrial and Domestic Processing of Brassica Vegetables (2006)

Dekker, M., Verkerk, R.

Civil procedure (2006)

Rhee, C.H. Van, Verkerk, R.

After addressing some problems specific to comparative legal research in civil procedure, this article focuses on 'families' of civil procedure, fundamental and other civil procedural principles,...

Thermal degradation of glucosinolates in red cabbage (2006)

Oerlemans, K., Barrett, D.M., Bosch Suades, C., Verkerk, R., Dekker, M.

Thermal degradation of individual glucosinolates within the plant matrix was studied. Red cabbage samples were heated at different temperatures for various times. To rule out the influence of...

Re: Fruit and Vegetable Intake and Risk of Major Chronic Disease (2005)

Dekker, M., Verkerk, R.

Modelling the Consequences of Variability in Food Production Chains on Human Health (2005)

Dekker, M., Verkerk, R.

Epidemiological studies on the relation between fruit and vegetable intake and chronic diseases show variable results. In many studies a small protective effect is found for fruit and vegetable...

Serotonergic disturbances in autistic disorder: L-5-hydroxytryptophan administration to autistic youngsters increases the blood concentrations of serotonin in patients but not in controls (2005)

Croonenberghs, J, Verkerk, R, Scharpe, S, Deboutte, Dirk, Maes, M

Effect van naoogstbehandelingen op de gezondheidswaarde van witte kool en broccoli : glucosinolaten en vitamine C (2004)

Verkerk, R.

Glucosinolates and Myrosinase Activity in Red Cabbage (Brassica oleracea L. Var. Capitata f. rubra DC.) after Various Microwave Treatments (2004)

Verkerk, R., Dekker, M.

Rice husks are of a lignocellulosic nature, with a hemicellulose fraction made up of substituted arabinoxylan. Rice husks were treated with hot, compressed water (autohydrolysis reaction) under...

Screening Brassicaceous accessions for nematode resistance and biofumigation effects (2004)

Zoon, F.C., Poleij, L.M., Verkerk, R.

Chemoprevention of 2-amino-3-methylimidazo[4,5-f]quinoline (IQ)-induced colonic and hepatic preneoplastic lesions in the F344 rat by cruciferous vegetables administered simultaneously with the carcinogen (2003)

Kassie, F., Uhl, M., Grasl-Kraupp, B., Verkerk, R., Kundi, M., Chabicovsky, M., ...

Gezondheidsbeschermende stoffen in groente en fruit (2003)

Verkerk, R., Dekker, M.

Modelling the Consequences of Variability in Food Productions Chains on Human Health (2003)

Dekker, M., Verkerk, R.

Dealing with variability in food production chains: a tool to enhance the sensitivity of epidemiological studies of phytochemicals (2003)

Dekker, M., Verkerk, R.

Magnetronbereiding geeft positievere effecten dan conventioneel koken (2003)

Verkerk, R., Dekker, M.

Evaluation of glucosinolate levels throughout the production chain of Brassica vegetables towards a novel predictive modelling approach (2003)

Verkerk, R.

Gezondheidsaspecten in de voedselproductieketen (2002)

Dekker, M., Verkerk, R., Jongen, W.M.F.

Protective effects of Brussels sprouts towards B[a]P-induced DNA damage: a model study with the single-cell gel electrophoresis (SCGE)/Hep G2 assay (2002)

Laky, B., Knasmuller, S., Gminski, R., Mersch-Sundermann, V., Scharf, G., Verkerk, R., ...

The aim of this study was to investigate the chemoprotective effects of Brussels sprouts juice towards benzo[a]pyrene (B(a)P)-induced DNA damage in the single-cell gel electrophoresis (SCGE)/Hep G2...

Evaluation of glucosinolate levels throughout the production chain of Brassica vegetables (2002)

Verkerk, R.

http://library.wur.nl/wda/abstracts/ab3200.html

Leerzame voeding (2002)

Verkerk, R., Dekker, M.

Rode kool uit magnetron gezonder (2002)

Verkerk, R.

Mensen eten te weinig groente : het is een fabeltje dat de straling van de magnetron schadelijk is. (2002)

Verkerk, R.

Gekookte kolen zijn beter : beter gekookt dan vers (2002)

Verkerk, R.

Gezondheidsaspecten in de voedselproductieketen (2002)

Dekker, M., Verkerk, R., Jongen, W.M.F.

Protective effects of Brussels sprouts towards B[a]P-induced DNA damage: a model study with the single-cell gel electrophpresis (SCGE)/Hep G2 assay (2002)

Laky, B., Knasmuller, S., Gminski, R., Mersch-Sundermann, V., Scharf, G., Verkerk, R., ...

Rode kool uit magnetron gezonder (2002)

Verkerk, R.

How Processing of Brassica Vegetables affects the Dietary Intake of Glucosinolates (2001)

Verkerk, R., Dekker, M., Jongen, W.M.F.

Post harvest increase of indolyl glucosinolates in response to chopping and storage Brassica vegetables (2001)

Verkerk, R., Dekker, M., Jongen, W.M.F.

Brassica vegetables contain high amounts of glucosinolates, which contribute to the beneficial health effects of their consumption. Processing of such vegetables in domestic food preparation or...

Kennismanagement bij productontwikkeling (2001)

Benner, M., Verkerk, R.

Technological Aspects of the Healthiness of Brassica Vegetables : Modelling the Fate of Glucosinolates during processing (2000)

Dekker, M., Verkerk, R., Voogd, G., Jongen, W.

Predictive modelling of health aspects in the food production chain : a case study on glucosinolates in cabbage (2000)

Dekker, M., Verkerk, R., Jongen, W.M.F.

Predictive modelling of health aspects in the food production chain (2000)

Dekker, M., Verkerk, R., Jongen, W.M.F.

The nutritional significance, biosynthesis and bioavailability of glucosinolates in human foods (2000)

Mithen, R.F., Dekker, M., Verkerk, R., Rabot, S., Johnson, I.T.

The glucosinolates are a large group of sulphur-containing compounds which occur in all the economically important varieties of Brassica vegetable. Their common structure comprises a -D-thioglucose...

An Improved, Rapid in Vitro Method To Measure Antioxidant Activity. Application on Selected Flavonoids and Apple Juice (2000)

Dekker, M., Verkerk, R., Jongen, W.M.F.

A rapid in vitro method for measuring antioxidant activity is presented, which enables the evaluation of health claims and the optimization of product development with respect to health protecting...

Effects of processing on the level and bioactivity of antioxidants in Food products (1999)

Dekker, M., Verkerk, R., Jongen, W.M.F.

Processing of foods containing flavonoids and glucosinates :effects on composition and bioactivity (1999)

Dekker, M., Verkerk, R., Jongen, W.M.F.

Analysing the Antioxidant Activity of Food Products : Processing and Matrix Effects (1999)

Dekker, M., Verkerk, R., Khokhar, S., Jongen, W.M.F.

Processing of Brassica vegetables (1999)

Verkerk, R., Dekker, M., Jongen, W.M.F.

Liposome-mediated transfer of YAC-DNA to tobacco cells. (1998)

Shakya, R., Verkerk, R., Peytavis, R., Zabel, P.

Glucosinates. (1998)

Verkerk, R., Dekker, M., Jongen, W.M.F.

Bioactieve stoffen in onze voeding. (1998)

Verkerk, R., Dekker, M., Jongen, W.M.F.

The mapping of phytochrome genes and photomorphogenic mutants of tomato. (1997)

Cordonnier-Prat, M.M., Pratt, L.H., Verkerk, R., Zabel, P., Koornneef, M.

Liposome-mediated transfer of YAC DNA to tobacco cells. (1997)

Shakya, R., Verkerk, R., Peytavis, R., Zabel, P.

Consumentgestuurde Technologie-ontwikkeling. Van wenselijkheid naar haalbaarheid en doeltreffendheid bij productie van levensmiddelen. (1997)

Jongen, W.M.F., Linnemann, A.R., Meerdink, G., Verkerk, R.

Glucosinolates as contributing factors in the quality of Brassic vegetables: stress induced increase of indole glucosinolates. (1997)

Verkerk, R., Krebbers, B., Dekker, M., Jongen, W.M.F.

Effects of processing conditions on glucosinolates in cruciferous vegetables. (1997)

Verkerk, R., Dekker, M., Jongen, W.M.F.

Glucosinolates constitute a well-defined group of secondary plant metabolites in cruciferous plants. They occur especially in brassica vegetables, which represent a major part of the human diet....

An improved method of partially digesting plant megabase DNA suitable for YAC cloning: application to the construction of a 5.5 genome equivalent YAC library of tomato. (1996)

Bonnema, G., Hontelez, J., Verkerk, R., Zabel, P.

Molecular genetic organisation of tomato chromosome 6. (1995)

Zabel, P., Weide, R., Liharska, T., Bonnema, G., Verkerk, R., ...

Construction of a 5.5. genome equivalent tomato YAC library and its application towards genetic and physical mapping of the Cf-4 locus. (1995)

Bonnema, G., Hontelez, J., Verkerk, R., Zabel, P.

Mapping and molecular organization of leucine-rich-repeat (LRR) elements around the Cf4/Cf9 locus in tomato. (1995)

Bonnema, G., Hontelez, J., Verkerk, R., Zabel, P.

Mapping of quantitative trait loci affecting greenhouse whitefly resistance in an interspecific tomato cross. (1995)

Maliepaard, C.A., Bas, N., Vrielink, M., Verkerk, R., Pet, G., ...

Mapping of whitefly resistance in tomato. (1995)

Maliepaard, C.A., Bas, N., Kos, J., Pet, G., Verkerk, R., ...

Mapping of QTLs for glandular trichome densities and Trialeurodes vaporariorum (greenhouse whitefly) resistance in an F2 from Lycopersicon esculentum x Lycopersicon hirsutum f. glabratum. (1995)

Maliepaard, C., Bas, N., Kos, J., Pet, G., Verkerk, R., ...

Localization of genes for bacterial cancer resistance in Lycopersicon peruvianum using RFLPs. (1995)

Sandbrink, J.M., Purimahua, C.C., Vrielink, M., Verkerk, R., Zabel, P., ...

Mapping of QTL's for glandular trichome densities and whitefly (Trialeurodes vaporariorum) resistance in an F, from L. esculentum x L. hirsutum f. glabratum (1995)

Maliepaard, C., Bas, N., Van Heusden, A.W., Kos, J., Pet, G., Verkerk, R., ...

Construction of tomato YAC libraries using an improved method to prepare partially digested DNA. (1994)

Bonnema, G., Hontelez, J., Verkerk, R., Peytavi, R., Zabel, P.

An RFLP linkage map of Lycopersicon peruvianum. (1994)

Sandbrink, J.M., Vrielink, M., Verkerk, R., Zabel, P., Lindhout, P.

YAC-transfer to plant cells. (1994)

Bonnema, G., Verkerk, R., Hontelez, J., Peytavi, R., Grimsley, N., ...

The perspectives of molecular marker assisted breeding for earliness in tomato. (1994)

Lindhout, P., Pet, G., Sandbrink, H., Verkerk, R., ...

Perspectives of molecular marker assisted breeding for earliness in tomato. (1994)

Lindhout, P., Pet, G., Sandbrink, H., Verkerk, R., ...

Mapping earliness genes in tomato (Lycopersicon esculentum). (1994)

Lindhout, P., Pet, G., Sandbrink, H., Verkerk, R., ...

Molecular and genetic organization of tomato chromosome 6. (1994)

Zabel, P., Weide, R., Liharska, T., Verkerk, R., Hontelez, J., ...

Localization of repetitive and single copy sequences on meiotic pachytene and mitotic metaphase chromosomes of tomato using fluorescence in situ hybridization (fish). (1994)

Zhong, X., Weide, R., Verkerk, R., Hontelez, J., Vosman, B., ...

Localization of repetitive and single copy sequences on tomato chromosomes using fluorescence in situ hybridization (fish). (1994)

Zhong, X., Weide, R., Verkerk, R., Hontelez, J., Vosman, B., ...

Isolation of a 6.2 kb geomic fragment carrying the Adh1 gene of tomato and its expression in transgenic tobacco. (1993)

Wisman, E., Bergervoet, M., Verkerk, R., Zabel, P.

Mapping quantitative genes involved in a trait assessed on an ordinal scale: a case study with bacterial cancer in Lycopersicon peruvianum. (1993)

Sandbrink, H., Purimahua, C., Vrielink, R., Verkerk, R., Zabel, P., ...

Integration of the classical and molecular linkage maps of tomato chromosome 6. (1993)

Weide, R., Klein Lankhorst, R., Verkerk, R., Hanhart, C., Liharska, T., ...

Characterization and mapping of a gene controlling shoot regeneration in tomato. (1993)

Koornneef, M., Bade, J., Hanhart, C., Horsman, K., Schel, J., Soppe, W., ...

Disturbances in dexamethasone suppression test and lower availability of l-tryptophan and tyrosine in early puerperium and in women under contraceptive therapy (1992)

Claes, M, Schotte, C, Delbeke, L, Jacquemyn, Y, Verkerk, R, ...

This study investigates the function of the hypothalamic-pituitary-adrenal (HPA)-axis and the availability of L-tryptophan and tryosine to the brain in postpartum women and in women taking long-term...

Mapping strategy for resistance genes in tomato based on RFLPs between cultivars: Cf9 (resistance to Cladosporium fulvum) on chromosome 1. (1992)

Verkerk, R., Zabel, P., Lindhout, P.

Mapping Clavibacter michiganensis resistance genes: a piece of cake. (1992)

Sandbrink, H., Purimahua, C., Vrielink, R., Verkerk, R., Zabel, P., ...

Refinement of the integrated classical and molecular linkage map of tomato chromosome 6. (1992)

Weide, R., Verkerk, R., Liharska, T., Hanhart, C., Koornneef, M., ...

Mapping of a gene controlling shoot regeneration in tomato. (1992)

Verkerk, R., Hanhart, C., Horsman, K., Soppe, W., Zabel, P., Koornneef, M.

RFLP's between tomato cultivars as a tool to map resistance genes: Cf9 (resistance to C.fulvum) on chromosome 1. (1992)

Lindhout, P., Verkerk, R., Zabel, P.

Mapping of a gene controlling shoot regeneration in tomato. (1992)

Verkerk, R., Hanhart, C., Horsman, K., Soppe, W., Zabel, P., Koornneef, M.

Refinement of the integrated classical and molecular linkage map of tomato chromosome 6. (1992)

Weide, R., Verkerk, R., Liharska, T., Hanhart, C., Koornneef, M., ...

Acid phosphatase-11, a tightly linked molecular marker for root-knot nematode resistance in tomato: from protein to gene, using PCR and degenerate primers containing deoxyinosine. (1991)

Hontelez, J.G.J., Fischer, P., Verkerk, R., Zabel, P.

Mapping strategy for resistance genes based on RFLPs between tomato cultivars: CF9 on chromosome 1. (1991)

Verkerk, R., Zabel, P., Lindhout, P.

Chromosome 6 of tomato: towards an integrated classical/molecular map and cloning of the nematode resistance of gene Mi. (1991)

Zabel, P., Weide, R., Liharska, T., Klein Lankhorst, R.M., Hontelez, J.G.J., ...

RFLP markers linked to the root knot nematode resistance gene Mi in tomato. (1991)

Klein Lankhorst, R.M., Rietveld, P., Machiels, B., Verkerk, R., Weide, R., Gebhardt, C., ...

DECREASED SERUM DIPEPTIDYL PEPTIDASE-IV ACTIVITY IN MAJOR DEPRESSION (1991)

MAES, M, DEMEESTER, I, VANHOOF, G, SCHARPE, S, BOSMANS, E, VERKERK, R, ...

It has been recently shown that severe depression is characterized by immune dysfunctions such as blunted mitogen-induced blast transformation, which is linked to interleukin-2 (IL-2) mechanisms, and...

DECREASED SERUM DIPEPTIDYL PEPTIDASE-IV ACTIVITY IN MAJOR DEPRESSION (1991)

MAES, M, DEMEESTER, I, SCHARPE, S, BOSMANS, E, VANDERVORST, Carine, RAUS, Jef, ...

It has been recently shown that severe depression is characterized by immune dysfunctions such as blunted mitogen-induced blast transformation, which is linked to interleukin-2 (IL-2) mechanisms, and...

Decreased dispeptidyl-peptidase IV activity in serum of major depressed patients (1991)

Maes, M., De Meester, I., Vanhoof, G, Scharpé, S., Bosmans, E., Vandervorst, C., ...

It has been recently shown that severe depression is characterized by immune dysfunctions such as blunted mitogen-induced blast transformation, which is linked to interleukin-2 (IL-2) mechanisms, and...

Processing of the cowpea mosaic virus polyproteins. (1989)

Wellink, J., Verver, J., Verkerk, R., Scheper, G.

Integration of the Classical and Molecular Linkage Maps of Tomato Chromosome 6

Weide, R., Van-Wordragen, M. F., Lankhorst, R. K., Verkerk, R., Hanhart, C., Liharska, T., ...

In the past, a classical map of the tomato genome has been established that is based on linkage data from intraspecific Lycopersicon esculentum crosses. In addition, a high density molecular linkage...

Integration of the Classical and Molecular Linkage Maps of Tomato Chromosome 6

Weide, R., Van-Wordragen, M. F., Lankhorst, R. K., Verkerk, R., Hanhart, C., Liharska, T., ...

In the past, a classical map of the tomato genome has been established that is based on linkage data from intraspecific Lycopersicon esculentum crosses. In addition, a high density molecular linkage...