Koutaro Ohtsuka

474 total citations
8 papers, 385 citations indexed

About

Koutaro Ohtsuka is a scholar working on Molecular Biology, Biotechnology and Nutrition and Dietetics. According to data from OpenAlex, Koutaro Ohtsuka has authored 8 papers receiving a total of 385 indexed citations (citations by other indexed papers that have themselves been cited), including 5 papers in Molecular Biology, 5 papers in Biotechnology and 3 papers in Nutrition and Dietetics. Recurrent topics in Koutaro Ohtsuka's work include Enzyme Production and Characterization (5 papers), Microbial Metabolites in Food Biotechnology (3 papers) and Biopolymer Synthesis and Applications (3 papers). Koutaro Ohtsuka is often cited by papers focused on Enzyme Production and Characterization (5 papers), Microbial Metabolites in Food Biotechnology (3 papers) and Biopolymer Synthesis and Applications (3 papers). Koutaro Ohtsuka collaborates with scholars based in Japan. Koutaro Ohtsuka's co-authors include Yuji Shimada, Kazuhiro Ban, Akihiko Kondo, O. Ozawa, Takeshi Matsumoto, Hideo Noda, Fumiki Nomoto, Masaru Kaieda, Hideki Fukuda and Eiji Izumoto and has published in prestigious journals such as Bioscience Biotechnology and Biochemistry, Journal of Bioscience and Bioengineering and Journal of Nutritional Science and Vitaminology.

In The Last Decade

Koutaro Ohtsuka

8 papers receiving 348 citations

Peers — A (Enhanced Table)

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

Name	h						Papers	Cites
Koutaro Ohtsuka Japan	6	239	195	100	78	38	8	385
M.H. López-Leiva Sweden	12	285 1.2×	160 0.8×	158 1.6×	201 2.6×	25 0.7×	14	578
Kristiina Kiviharju Finland	10	250 1.0×	118 0.6×	55 0.6×	45 0.6×	82 2.2×	18	412
Mitsuru Wada Japan	8	363 1.5×	269 1.4×	50 0.5×	90 1.2×	16 0.4×	11	484
Abbas Scharif Afschar Germany	10	314 1.3×	294 1.5×	98 1.0×	64 0.8×	8 0.2×	18	441
M. Hujanen Finland	6	264 1.1×	176 0.9×	142 1.4×	80 1.0×	16 0.4×	6	416
Luciana Santibáñez Chile	6	120 0.5×	228 1.2×	140 1.4×	61 0.8×	9 0.2×	6	332
S. M. Kotwal India	7	191 0.8×	89 0.5×	110 1.1×	157 2.0×	12 0.3×	10	338
M F Barbosa Canada	7	377 1.6×	496 2.5×	180 1.8×	105 1.3×	24 0.6×	7	574
Ngoc-Phuong-Thao Nguyen France	8	247 1.0×	215 1.1×	32 0.3×	91 1.2×	4 0.1×	10	325
Lingtian Wu China	12	164 0.7×	116 0.6×	62 0.6×	122 1.6×	32 0.8×	19	357

Countries citing papers authored by Koutaro Ohtsuka

Since Specialization

Citations

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

Fields of papers citing papers by Koutaro Ohtsuka

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Koutaro Ohtsuka

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

All Works

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8 of 8 papers shown

Kaieda, Masaru, Takeshi Matsumoto, Kazuhiro Ban, et al.. (1999). Biodiesel fuel production from plant oil catalyzed by Rhizopus oryzae lipase in a water-containing system without an organic solvent. Journal of Bioscience and Bioengineering. 88(6). 627–631. 251 indexed citations

Tamai, Satoshi, et al.. (1992). Effect of a Small Amount of Galactooligosaccharide on Fecal Bifidobacterium.. Nippon Eiyo Shokuryo Gakkaishi. 45(5). 456–460. 10 indexed citations

Ohtsuka, Koutaro, et al.. (1992). Characterization of Levansucrase fromRahnella aquatilisJCM-1683. Bioscience Biotechnology and Biochemistry. 56(9). 1373–1377. 62 indexed citations

Ohtsuka, Koutaro, Keisuke Tsuji, Yasue Nakagawa, et al.. (1991). Utilization and Metabolism of (U-14C)4' Galactosyllactose (O-.BETA.-D-Galactopyranosyl-(1.RAR.4)-O-.BETA.-D-Galactopyranosyl-(1.RAR.4)-D-Glucopyranose) in Rats.. Journal of Nutritional Science and Vitaminology. 37(2). 173–184. 6 indexed citations

Ozawa, O., et al.. (1991). Preparation of 4'-Galactosyllactose Derivatives and Their Utilization by Bifidobacteria.. NIPPON SHOKUHIN KOGYO GAKKAISHI. 38(12). 1086–1092. 1 indexed citations

Ozawa, O., et al.. (1991). 4′-Galactosyllactose production in a jar fermentor by Cryptococcus laurentii OKN-4. Journal of Fermentation and Bioengineering. 72(4). 309–310. 3 indexed citations

Ohtsuka, Koutaro, et al.. (1990). Availability of 4'galactosyllactose (O-.BETA.-D-galactopyranosyl-(1.RAR.4)-O-.BETA.-D-galactopyranosyl-(1.RAR.4)-D-glucopyranose) in rat.. Journal of Nutritional Science and Vitaminology. 36(3). 265–276. 27 indexed citations

Ohtsuka, Koutaro, et al.. (1990). Purification and properties of a β-galactosidase with high galactosyl transfer activity from Cryptococcus laurentii OKN-4. Journal of Fermentation and Bioengineering. 70(5). 301–307. 25 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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