Karl‐Heinz Robra

1.8k total citations · 1 hit paper
16 papers, 1.4k citations indexed

About

Karl‐Heinz Robra is a scholar working on Biotechnology, Plant Science and Molecular Biology. According to data from OpenAlex, Karl‐Heinz Robra has authored 16 papers receiving a total of 1.4k indexed citations (citations by other indexed papers that have themselves been cited), including 8 papers in Biotechnology, 8 papers in Plant Science and 6 papers in Molecular Biology. Recurrent topics in Karl‐Heinz Robra's work include Enzyme-mediated dye degradation (8 papers), Microbial Metabolism and Applications (6 papers) and Biofuel production and bioconversion (4 papers). Karl‐Heinz Robra is often cited by papers focused on Enzyme-mediated dye degradation (8 papers), Microbial Metabolism and Applications (6 papers) and Biofuel production and bioconversion (4 papers). Karl‐Heinz Robra collaborates with scholars based in Austria, Portugal and France. Karl‐Heinz Robra's co-authors include Georg Gübitz, Artur Cavaco‐Paulo, Tzanko Tzanov, Silgia Aparecida da Costa, Marinka Gudelj, Andreas Kandelbauer, Momein H. El-Katatny, M. A. Elnaghy, Walter Somitsch and Luísa Mota da Silva and has published in prestigious journals such as Applied and Environmental Microbiology, Bioresource Technology and Applied Microbiology and Biotechnology.

In The Last Decade

Karl‐Heinz Robra

16 papers receiving 1.2k 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.

Decolorization and Detoxification of Textile Dyes with a Laccase from Trametes hirsuta

2000 584 citations Tzanko Tzanov, Silgia Aparecida da Costa et al. Applied and Environmental Microbiology profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Karl‐Heinz Robra Austria	13	996	625	294	189	160	16	1.4k
Sophie Vanhulle Belgium	13	1.0k 1.0×	615 1.0×	245 0.8×	140 0.7×	48 0.3×	17	1.4k
Flavia Forchiassin Argentina	19	884 0.9×	700 1.1×	168 0.6×	287 1.5×	45 0.3×	52	1.3k
Nurdan Kaşıkara Pazarlıoǧlu Türkiye	17	528 0.5×	314 0.5×	168 0.6×	198 1.0×	74 0.5×	43	1.0k
Satish Kalme India	15	1.1k 1.1×	668 1.1×	157 0.5×	168 0.9×	57 0.4×	21	1.5k
Xiangru Liao China	25	985 1.0×	754 1.2×	570 1.9×	253 1.3×	33 0.2×	89	1.8k
Akshaya Gupte India	21	600 0.6×	461 0.7×	274 0.9×	437 2.3×	63 0.4×	51	1.3k
Kurt Messner Austria	20	851 0.9×	403 0.6×	188 0.6×	515 2.7×	153 1.0×	31	1.3k
Claudia Eggert Germany	12	1.6k 1.6×	1.1k 1.7×	148 0.5×	326 1.7×	36 0.2×	16	1.8k
Jolanta Polak Poland	13	649 0.7×	355 0.6×	221 0.8×	100 0.5×	75 0.5×	25	1000
María R. Trejo‐Hernández Mexico	22	409 0.4×	281 0.4×	271 0.9×	228 1.2×	61 0.4×	39	1.2k

Countries citing papers authored by Karl‐Heinz Robra

Since Specialization

Citations

This map shows the geographic impact of Karl‐Heinz Robra'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 Karl‐Heinz Robra with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Karl‐Heinz Robra more than expected).

Fields of papers citing papers by Karl‐Heinz Robra

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Karl‐Heinz Robra. 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 Karl‐Heinz Robra. The network helps show where Karl‐Heinz Robra may publish in the future.

Co-authorship network of co-authors of Karl‐Heinz Robra

This figure shows the co-authorship network connecting the top 25 collaborators of Karl‐Heinz Robra. A scholar is included among the top collaborators of Karl‐Heinz Robra 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 Karl‐Heinz Robra. Karl‐Heinz Robra is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

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16 of 16 papers shown

Rumbold, Karl, Peter Biely, Mária Mastihubová, et al.. (2003). Purification and Properties of a Feruloyl Esterase Involved in Lignocellulose Degradation byAureobasidium pullulans. Applied and Environmental Microbiology. 69(9). 5622–5626. 50 indexed citations

Rumbold, Karl, Harriet Okatch, Nelson Torto, et al.. (2002). Monitoring on‐line desalted lignocellulosic hydrolysates by microdialysis sampling micro‐high performance anion exchange chromatography with integrated pulsed electrochemical detection/mass spectrometry. Biotechnology and Bioengineering. 78(7). 822–828. 12 indexed citations

Robra, Karl‐Heinz, et al.. (2002). Two-stage anaerobic fermentation of organic waste in CSTR and UFAF-reactors. Bioresource Technology. 81(1). 19–24. 41 indexed citations

Gudelj, Marinka, et al.. (2002). Treatment of bleaching baths for reuse in dyeing with immobilized thermoalkalistable catalases. RepositóriUM (Universidade do Minho). 25–26. 1 indexed citations

Kandelbauer, Andreas, et al.. (2001). Indigo degradation with purified laccases from Trametes hirsuta and Sclerotium rolfsii. Journal of Biotechnology. 89(2-3). 131–139. 201 indexed citations

Costa, Silgia Aparecida da, Tzanko Tzanov, Marinka Gudelj, et al.. (2001). Thermo-alkali-stable catalases from newly isolated Bacillus sp. for the treatment and recycling of textile bleaching effluents. Journal of Biotechnology. 89(2-3). 147–153. 47 indexed citations

El-Katatny, Momein H., Marinka Gudelj, Karl‐Heinz Robra, M. A. Elnaghy, & Georg Gübitz. (2001). Characterization of a chitinase and an endo-β-1,3-glucanase from Trichoderma harzianum Rifai T24 involved in control of the phytopathogen Sclerotium rolfsii. Applied Microbiology and Biotechnology. 56(1-2). 137–143. 128 indexed citations

Robra, Karl‐Heinz, et al.. (2001). Aerobic treatment of a concentrated urea wastewater with simultaneous stripping of ammonia. Applied Microbiology and Biotechnology. 56(5-6). 820–825. 22 indexed citations

Gudelj, Marinka, Gilbert O. Fruhwirth, Fritz Lottspeich, et al.. (2001). A catalase-peroxidase from a newly isolated thermoalkaliphilic Bacillus sp. with potential for the treatment of textile bleaching effluents. Extremophiles. 5(6). 423–429. 45 indexed citations

10.

Cavaco‐Paulo, Artur, et al.. (2001). Indigo Degradation with Laccases from Polyporus sp. and Sclerotium rolfsii. Textile Research Journal. 71(5). 420–424. 23 indexed citations

11.

El-Katatny, Momein H., et al.. (2000). Production of Chitinase and b-1,3-glucanase by Trichoderma harzianum for Control of the Phytopathogenic Fungus Sclerotium rolfsii. 38(3). 173–180. 72 indexed citations

12.

Robra, Karl‐Heinz, et al.. (2000). Indigo Degradation with Laccases from Polyporus sp. and Sclerotium rolfsii. RepositóriUM (Universidade do Minho). 2 indexed citations

13.

Tzanov, Tzanko, et al.. (2000). Decolorization and Detoxification of Textile Dyes with a Laccase from Trametes hirsuta. Applied and Environmental Microbiology. 66(8). 3357–3362. 584 indexed citations breakdown →

14.

Tauber, Michael, Artur Cavaco‐Paulo, Karl‐Heinz Robra, & Georg Gübitz. (2000). Nitrile Hydratase and Amidase from Rhodococcus rhodochrous Hydrolyze Acrylic Fibers and Granular Polyacrylonitriles. Applied and Environmental Microbiology. 66(4). 1634–1638. 49 indexed citations

15.

Robra, Karl‐Heinz, et al.. (2000). Enzymatic Decolorization of Textile Dyeing Effluents. Textile Research Journal. 70(5). 409–414. 81 indexed citations

16.

Robra, Karl‐Heinz, et al.. (1998). Off-site bioremediation of contaminated soil and direct reutilization of all soil fractions. 1103–1104. 1 indexed citations

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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