John Villadsen

9.3k total citations · 2 hit papers
150 papers, 7.1k citations indexed

About

John Villadsen is a scholar working on Molecular Biology, Biomedical Engineering and Materials Chemistry. According to data from OpenAlex, John Villadsen has authored 150 papers receiving a total of 7.1k indexed citations (citations by other indexed papers that have themselves been cited), including 84 papers in Molecular Biology, 55 papers in Biomedical Engineering and 20 papers in Materials Chemistry. Recurrent topics in John Villadsen's work include Microbial Metabolic Engineering and Bioproduction (55 papers), Biofuel production and bioconversion (21 papers) and Enzyme Catalysis and Immobilization (18 papers). John Villadsen is often cited by papers focused on Microbial Metabolic Engineering and Bioproduction (55 papers), Biofuel production and bioconversion (21 papers) and Enzyme Catalysis and Immobilization (18 papers). John Villadsen collaborates with scholars based in Denmark, United States and Sweden. John Villadsen's co-authors include Jens Nielsen, Michael L. Michelsen, Gunnar Lidén, S. Benthin, Ulrik Schulze, Schmidt Karsten, Morten Carlsen, Morten C. Kielland‐Brandt, Lars H. Christensen and Claus Maxel Henriksen and has published in prestigious journals such as Applied and Environmental Microbiology, Analytical Biochemistry and Bioresource Technology.

In The Last Decade

John Villadsen

147 papers receiving 6.7k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Solution of differential equation models by polynomial approximation

1978 1.1k citations John Villadsen, Michael L. Michelsen Prentice Hall eBooks profile →
Bioreaction Engineering Principles

1994 567 citations Jens Nielsen, John Villadsen profile →

Peers

John Villadsen

K. Ch. A. M. Luyben Netherlands

Urs von Stockar Switzerland

Joseph J. Heijnen Netherlands

Elmar Heinzle Germany

K. Schügerl Germany

Dirk Weuster‐Botz Germany

Zhilong Xiu China

Juan A. Asenjo Chile

George T. Tsao United States

M. D. Lilly United Kingdom

K. Ch. A. M. Luyben Netherlands

John Villadsen

2.6k ×0.7

2.3k ×0.9

391 ×0.6

419 ×0.7

241 ×0.4

Citations per year, relative to John Villadsen John Villadsen (= 1×) peers K. Ch. A. M. Luyben

Countries citing papers authored by John Villadsen

Since Specialization

Citations

This map shows the geographic impact of John Villadsen's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by John Villadsen with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites John Villadsen more than expected).

Fields of papers citing papers by John Villadsen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by John Villadsen. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by John Villadsen. The network helps show where John Villadsen may publish in the future.

Co-authorship network of co-authors of John Villadsen

This figure shows the co-authorship network connecting the top 25 collaborators of John Villadsen. A scholar is included among the top collaborators of John Villadsen based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with John Villadsen. John Villadsen is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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20 of 20 papers shown

Lieven, Christian, et al.. (2019). Dynamic investigation and modeling of the nitrogen cometabolism in Methylococcus capsulatus (Bath). Biotechnology and Bioengineering. 116(11). 2884–2895. 7 indexed citations

Hobley, Timothy John, et al.. (2011). A biochemically structured model for ethanol fermentation by Kluyveromyces marxianus: A batch fermentation and kinetic study. Bioresource Technology. 102(16). 7513–7520. 27 indexed citations

Nienow, Alvin W., et al.. (2008). Mixing by rotary jet heads: Indications of the benefits of head rotation under turbulent and transitional flow conditions. Process Safety and Environmental Protection. 86(12). 1454–1461. 4 indexed citations

Nielsen, Per Munk, et al.. (2006). Scale‐up of enzymatic production of lactobionic acid using the rotary jet head system. Biotechnology and Bioengineering. 97(4). 842–849. 19 indexed citations

Christensen, Bjarke Bak, et al.. (2002). The simultaneous biosynthesis and uptake of amino acids by Lactococcus lactis studied by ¹³C‐labeling experiments. Biotechnology and Bioengineering. 78(1). 11–16. 10 indexed citations

Kielland‐Brandt, Morten C., et al.. (2000). Optimization of Ethanol Production in Saccharomyces cerevisiae by Metabolic Engineering of the Ammonium Assimilation. Metabolic Engineering. 2(1). 69–77. 174 indexed citations

Henriksen, Claus Maxel, et al.. (1999). Glucose/Citrate Cometabolism in Lactococcus lactis subsp. lactis biovar diacetylactis with Impaired α-Acetolactate Decarboxylase. Metabolic Engineering. 1(4). 291–298. 16 indexed citations

Karsten, Schmidt, Jens Nielsen, & John Villadsen. (1999). Quantitative analysis of metabolic fluxes in Escherichia coli, using two-dimensional NMR spectroscopy and complete isotopomer models. Journal of Biotechnology. 71(1-3). 175–189. 134 indexed citations

Karsten, Schmidt, Bent Nørgaard Pedersen, Axel Meißner, et al.. (1999). Quantification of Intracellular Metabolic Fluxes from Fractional Enrichment and13C–13C Coupling Constraints on the Isotopomer Distribution in Labeled Biomass Components. Metabolic Engineering. 1(2). 166–179. 77 indexed citations

10.

Henriksen, Claus Maxel, Jens Nielsen, & John Villadsen. (1998). Cyclization of .ALPHA.-Aminoadipic Acid into the .DELTA.-Lactam 6-Oxo-piperidine-2-carboxylic Acid by Penicillium chrysogenum.. The Journal of Antibiotics. 51(2). 99–106. 15 indexed citations

11.

Schulze, Ulrik, Gunnar Lidén, Jens Nielsen, & John Villadsen. (1996). Physiological effects of nitrogen starvation in an anaerobic batch culture of Saccharomyces cerevisiae. Microbiology. 142(8). 2299–2310. 49 indexed citations

12.

Jørgensen, Henrik, Jens Nielsen, John Villadsen, & H. Møllgaard. (1995). Metabolic flux distributions in Penicillium chrysogenum during fed‐batch cultivations. Biotechnology and Bioengineering. 46(2). 117–131. 140 indexed citations

13.

Jørgensen, Hannah Joan, Jens Nielsen, John Villadsen, & H. Møllgaard. (1995). Analysis of penicillin V biosynthesis during fed-batch cultivations with a high-yielding strain of Penicillium chrysogenum. Applied Microbiology and Biotechnology. 43(1). 123–130. 38 indexed citations

14.

Schulze, Ulrik, et al.. (1995). Determination of Intracellular Trehalose and Glycogen in Saccharomyces cerevisiae. Analytical Biochemistry. 228(1). 143–149. 54 indexed citations

15.

Benthin, S., Jens Nielsen, & John Villadsen. (1993). Transport of sugars via two anomer‐specific sites on mannose–phosphotransferase system in Lactococcus cremoris: In vivo study of mechanism, kinetics, and adaptation. Biotechnology and Bioengineering. 42(4). 440–448. 3 indexed citations

16.

Nielsen, Jens, et al.. (1991). Structured modeling of a microbial system: III. Growth on mixed substrates. Biotechnology and Bioengineering. 38(1). 24–29. 33 indexed citations

17.

Nielsen, Jens, et al.. (1991). Structured modeling of a microbial system: I. A theoretical study of lactic acid fermentation. Biotechnology and Bioengineering. 38(1). 1–10. 50 indexed citations

18.

Nielsen, Jens, et al.. (1989). FIA for on‐line monitoring of important lactic acid fermentation variables. Biotechnology and Bioengineering. 33(9). 1127–1134. 32 indexed citations

19.

Livbjerg, Hans, et al.. (1987). Theoretical foundation of cluster formation in supported liquid-phase catalysts. Sadhana. 10(1-2). 185–216. 6 indexed citations

20.

Villadsen, John & Michael L. Michelsen. (1978). Solution of differential equation models by polynomial approximation. Prentice Hall eBooks. 1066 indexed citations breakdown →

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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