Jyrki Loponen

3.2k total citations
44 papers, 2.6k citations indexed

About

Jyrki Loponen is a scholar working on Molecular Biology, Organic Chemistry and Biochemistry. According to data from OpenAlex, Jyrki Loponen has authored 44 papers receiving a total of 2.6k indexed citations (citations by other indexed papers that have themselves been cited), including 12 papers in Molecular Biology, 11 papers in Organic Chemistry and 9 papers in Biochemistry. Recurrent topics in Jyrki Loponen's work include Phytochemicals and Antioxidant Activities (9 papers), Plant biochemistry and biosynthesis (8 papers) and Natural product bioactivities and synthesis (7 papers). Jyrki Loponen is often cited by papers focused on Phytochemicals and Antioxidant Activities (9 papers), Plant biochemistry and biosynthesis (8 papers) and Natural product bioactivities and synthesis (7 papers). Jyrki Loponen collaborates with scholars based in Finland, Russia and Sweden. Jyrki Loponen's co-authors include Kalevi Pihlaja, Karel D. Klika, Vladimir Ossipov, Riitta Koivikko, Veijo Jormalainen, Erkki Haukioja, Tuija Honkanen, Aino Smolander, Veikko Kitunen and Maarit Karonen and has published in prestigious journals such as Journal of Agricultural and Food Chemistry, Chemosphere and Soil Biology and Biochemistry.

In The Last Decade

Jyrki Loponen

43 papers receiving 2.4k citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Jyrki Loponen Finland	25	789	696	639	606	362	44	2.6k
Gary Dobson United Kingdom	30	639 0.8×	371 0.5×	324 0.5×	1.1k 1.7×	100 0.3×	72	3.1k
Xiaohong Gu China	33	559 0.7×	523 0.8×	156 0.2×	616 1.0×	271 0.7×	127	3.2k
Christian Magné France	30	1.8k 2.3×	843 1.2×	695 1.1×	804 1.3×	211 0.6×	85	3.1k
Kelly M. Gillespie United States	10	2.2k 2.7×	636 0.9×	753 1.2×	737 1.2×	113 0.3×	13	3.6k
Steven J. Britz United States	26	1.6k 2.0×	241 0.3×	573 0.9×	654 1.1×	64 0.2×	63	2.3k
J. López‐Hernández Spain	31	708 0.9×	840 1.2×	464 0.7×	800 1.3×	1.3k 3.7×	93	3.3k
Elisa Azzarello Italy	29	2.7k 3.4×	355 0.5×	415 0.6×	1.1k 1.9×	54 0.1×	72	3.8k
Benoı̂t Schoefs France	40	1.8k 2.2×	201 0.3×	537 0.8×	2.2k 3.7×	250 0.7×	121	4.8k
Susanne Neugart Germany	32	1.9k 2.5×	702 1.0×	753 1.2×	1.1k 1.7×	92 0.3×	89	3.2k

Countries citing papers authored by Jyrki Loponen

Since Specialization

Citations

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

Fields of papers citing papers by Jyrki Loponen

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Jyrki Loponen. 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 Jyrki Loponen. The network helps show where Jyrki Loponen may publish in the future.

Co-authorship network of co-authors of Jyrki Loponen

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

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Koivikko, Riitta, Jyrki Loponen, Kalevi Pihlaja, & Veijo Jormalainen. (2007). High‐performance liquid chromatographic analysis of phlorotannins from the brown alga Fucus Vesiculosus. Phytochemical Analysis. 18(4). 326–332. 129 indexed citations

Karonen, Maarit, et al.. (2007). Reversed‐phase HPLC‐ESI/MS analysis of birch leaf proanthocyanidins after their acidic degradation in the presence of nucleophiles. Phytochemical Analysis. 18(5). 378–386. 51 indexed citations

Korpinen, Samuli, Tuija Honkanen, Outi Vesakoski, et al.. (2007). Macroalgal Communities Face the Challenge of Changing Biotic Interactions: Review with Focus on the Baltic Sea. AMBIO. 36(2). 203–211. 40 indexed citations

Koivikko, Riitta, et al.. (2007). Variation of Phlorotannins Among Three Populations of Fucus vesiculosus as Revealed by HPLC and Colorimetric Quantification. Journal of Chemical Ecology. 34(1). 57–64. 64 indexed citations

Karonen, Maarit, Vladimir Ossipov, Svetlana Ossipova, et al.. (2006). Effects of Elevated Carbon Dioxide and Ozone on Foliar Proanthocyanidins in Betula platyphylla, Betula ermanii, and Fagus crenata Seedlings. Journal of Chemical Ecology. 32(7). 1445–1458. 13 indexed citations

Karonen, Maarit, Vladimir Ossipov, Jari Sinkkonen, et al.. (2006). Quantitative analysis of polymeric proanthocyanidins in birch leaves with normal‐phase HPLC. Phytochemical Analysis. 17(3). 149–156. 35 indexed citations

Karonen, Maarit, Mari Hämäläinen, Riina Nieminen, et al.. (2004). Phenolic Extractives from the Bark of Pinus sylvestris L. and Their Effects on Inflammatory Mediators Nitric Oxide and Prostaglandin E₂. Journal of Agricultural and Food Chemistry. 52(25). 7532–7540. 94 indexed citations

Karonen, Maarit, Jyrki Loponen, Vladimir Ossipov, & Kalevi Pihlaja. (2004). Analysis of procyanidins in pine bark with reversed-phase and normal-phase high-performance liquid chromatography–electrospray ionization mass spectrometry. Analytica Chimica Acta. 522(1). 105–112. 130 indexed citations

Klika, Karel D., Ammar Saleem, Jari Sinkkonen, et al.. (2004). The structural and conformational analyses and antioxidant activities of chebulinic acid and its thrice-hydrolyzed derivative, 2,4-chebuloyl-β-D-glucopyranoside, isolated from the fruit of Terminalia chebula. ARKIVOC. 2004(7). 83–105. 33 indexed citations

10.

Viggor, Signe, et al.. (2002). Biodegradation of dimethylphenols by bacteria with different ring-cleavage pathways of phenolic compounds. Environmental Science and Pollution Research. 9(S1). 19–26. 11 indexed citations

11.

Loponen, Jyrki, et al.. (2001). Effects of Long-Term Open-Field Ozone Exposure on Leaf Phenolics of European Silver Birch (Betula pendula Roth). Journal of Chemical Ecology. 27(5). 1049–1062. 80 indexed citations

12.

Loponen, Jyrki, et al.. (2001). Betalains and Phenolics in Red Beetroot (Beta vulgaris) Peel Extracts: Extraction and Characterisation. Zeitschrift für Naturforschung C. 56(5-6). 343–348. 104 indexed citations

13.

Ossipova, Svetlana, Vladimir Ossipov, Erkki Haukioja, Jyrki Loponen, & Kalevi Pihlaja. (2001). Proanthocyanidins of mountain birch leaves: quantification and properties. Phytochemical Analysis. 12(2). 128–133. 81 indexed citations

14.

Ossipov, Vladimir, Jyrki Loponen, Svetlana Ossipova, Erkki Haukioja, & Kalevi Pihlaja. (1997). Gallotannins of birch betula pubescens leaves: HLPC separation and quantification. Biochemical Systematics and Ecology. 25(6). 493–504. 56 indexed citations

15.

Loponen, Jyrki, et al.. (1997). Low molecular mass phenolics in foliage of Betula pubescens Ehrh. in relation to aerial pollution. Chemosphere. 34(4). 687–697. 21 indexed citations

16.

Rosling, Ari, et al.. (1990). Regio- and Stereo-selectivity in CuI-Catalyzed Grignard Reactions with tert-Butyl (Z)-beta-Tosyloxy alpha,beta-Enoates.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 44. 842–844. 2 indexed citations

17.

Claesson, Alf, et al.. (1990). Synthesis of a Simplified Transition-State Analogue in an Attempt to Obtain an Inhibitor of CMP-KDO Synthetase.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 44(10). 1058–1061. 3 indexed citations

18.

Lau, Jesper, et al.. (1990). Stereoselective 1,4-Addition of Thiols to (2E)-4,6-Di-O-acetyl-2,3-dideoxy-aldehydo-D-erythro-hex-2-enose.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 44. 1046–1049. 2 indexed citations

19.

Kanerva, Liisa T., et al.. (1990). Solvent Effects in Lipase-Catalysed Transesterification Reactions.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 44(10). 1032–1035. 30 indexed citations

20.

Thomsen, Ib, et al.. (1990). Reactions with alpha,beta-Unsaturated Nitrile Oxides. Synthetic Studies in the Terpene Field. Synthesis of Tagetones, Ocimenones, Deodarone, and Atlantone.. Acta chemica Scandinavica/Acta chemica Scandinavica. B, Organic chemistry and biochemistry/Acta chemica Scandinavica. A, Physical and inorganic chemistry/Acta chemica Scandinavica. Series B. Organic chemistry and biochemistry/Acta chemica Scandinavica. Series A, Physical and inorganic chemistry. 44. 806–813. 14 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.

Explore authors with similar magnitude of impact