J. Velterop

A rapid and inexpensive microplate assay for the enzymatic determination of glucose, fructose, sucrose, L-malate and citrate in tomato (Lycopersicon esculentum) extracts and in orange juice.

F. Vos, J. Velterop, Joyce S. Velterop, 2001, Phytochemical analysis : PCA.

Synthesis of pyrroloquinoline quinone in vivo and in vitro and detection of an intermediate in the biosynthetic pathway

P. Postma, E. Sellink, I. Bulder, 1995, Journal of bacteriology.

Further Characterization of Expression of Auxin-Induced Genes in Tobacco (Nicotiana tabacum) Cell-Suspension Cultures

P. Hooykaas, B. J. van der Zaal, B. J. Zaal, 1993, Plant physiology.

A versatile vector for controlled expression of genes in Escherichia coli and Salmonella typhimurium.

J. Velterop, P. Postma, R. van 't Hof, 1995, Gene.

A versatile vector for controlled expression of genes in Escherichia coli and Salmonella typhimurium.

P. Postma, M. Dijkhuizen, J. Velterop, 1995, Gene.