World's Best Scientists 2026 revealed!
Motomitsu Kitaoka

Motomitsu Kitaoka

D-Index & Metrics

Biology and Biochemistry

D-Index
60
Citations
10145
World Ranking
12181
National Ranking
838

Chemistry

D-Index
57
Citations
9470
World Ranking
11319
National Ranking
833

Motomitsu Kitaoka publication distribution in Chemistry in 2026

The chart shows the distribution of publications by all Research.com ranked scientists in the field of Chemistry in 2026. The highlighted bar marks where Motomitsu Kitaoka sits on this spectrum.

61–80 publications: 66 scientists 81–100 publications: 302 scientists 101–120 publications: 623 scientists 121–140 publications: 918 scientists 141–160 publications: 1,218 scientists 161–180 publications: 1,350 scientists 181–200 publications: 1,344 scientists 201–220 publications: 1,281 scientists 221–240 publications: 1,216 scientists 241–260 publications: 1,100 scientists 261–280 publications: 979 scientists 281–300 publications: 939 scientists 301–320 publications: 764 scientists 321–340 publications: 643 scientists 341–360 publications: 628 scientists 361–380 publications: 522 scientists 381–400 publications: 459 scientists 401–420 publications: 397 scientists 421–440 publications: 327 scientists 441–460 publications: 270 scientists 461–480 publications: 265 scientists 481–500 publications: 252 scientists 501–520 publications: 201 scientists 521–540 publications: 185 scientists 541–560 publications: 148 scientists 561–580 publications: 148 scientists 581–600 publications: 132 scientists 601–620 publications: 114 scientists 621–640 publications: 104 scientists 641–660 publications: 91 scientists 661–680 publications: 92 scientists 681–700 publications: 73 scientists 701–720 publications: 57 scientists 721–740 publications: 54 scientists 741–760 publications: 67 scientists 761–780 publications: 45 scientists 781–800 publications: 46 scientists 801–820 publications: 39 scientists 821–840 publications: 32 scientists 841–860 publications: 36 scientists 861–880 publications: 29 scientists 881–900 publications: 26 scientists 901–920 publications: 24 scientists 921–940 publications: 14 scientists 941–960 publications: 23 scientists 961–980 publications: 28 scientists 981–1,000 publications: 15 scientists 1,001–1,020 publications: 29 scientists 1,021–1,040 publications: 12 scientists 1,041–1,060 publications: 19 scientists 1,061–1,080 publications: 12 scientists 1,081–1,100 publications: 6 scientists 1,101–1,120 publications: 8 scientists 1,121–1,140 publications: 12 scientists 1,141–1,160 publications: 5 scientists 1,161–1,180 publications: 6 scientists 1,181–1,200 publications: 14 scientists 1,201–1,220 publications: 7 scientists 1,221–1,240 publications: 2 scientists 1,241–1,260 publications: 6 scientists 1,261–1,280 publications: 4 scientists 1,281–1,294 publications: 6 scientists 1,295+ publications: 100 scientists
61 publications 1,295+

This scientist: 265 publications — 54th percentile

54% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 1,295 publications or more.

Motomitsu Kitaoka D-index placement in Chemistry in 2026

The chart shows the D-index (discipline H-index) distribution of Chemistry scientists ranked by Research.com in 2026. The highlighted bar marks where Motomitsu Kitaoka sits on this spectrum.

40–41 D-Index: 289 scientists 42–43 D-Index: 612 scientists 44–45 D-Index: 808 scientists 46–47 D-Index: 776 scientists 48–49 D-Index: 835 scientists 50–51 D-Index: 861 scientists 52–53 D-Index: 872 scientists 54–55 D-Index: 933 scientists 56–57 D-Index: 1,051 scientists 58–59 D-Index: 930 scientists 60–61 D-Index: 882 scientists 62–63 D-Index: 834 scientists 64–65 D-Index: 731 scientists 66–67 D-Index: 775 scientists 68–69 D-Index: 683 scientists 70–71 D-Index: 646 scientists 72–73 D-Index: 561 scientists 74–75 D-Index: 501 scientists 76–77 D-Index: 437 scientists 78–79 D-Index: 388 scientists 80–81 D-Index: 354 scientists 82–83 D-Index: 292 scientists 84–85 D-Index: 275 scientists 86–87 D-Index: 254 scientists 88–89 D-Index: 235 scientists 90–91 D-Index: 185 scientists 92–93 D-Index: 192 scientists 94–95 D-Index: 155 scientists 96–97 D-Index: 163 scientists 98–99 D-Index: 125 scientists 100–101 D-Index: 105 scientists 102–103 D-Index: 105 scientists 104–105 D-Index: 112 scientists 106–107 D-Index: 88 scientists 108–109 D-Index: 68 scientists 110–111 D-Index: 69 scientists 112–113 D-Index: 65 scientists 114–115 D-Index: 79 scientists 116–117 D-Index: 61 scientists 118–119 D-Index: 44 scientists 120–121 D-Index: 37 scientists 122–123 D-Index: 40 scientists 124–125 D-Index: 33 scientists 126–127 D-Index: 26 scientists 128–129 D-Index: 34 scientists 130–131 D-Index: 35 scientists 132–133 D-Index: 25 scientists 134–135 D-Index: 27 scientists 136–137 D-Index: 17 scientists 138–139 D-Index: 16 scientists 140–141 D-Index: 20 scientists 142–143 D-Index: 20 scientists 144–145 D-Index: 15 scientists 146–147 D-Index: 9 scientists 148–149 D-Index: 9 scientists 150–151 D-Index: 16 scientists 152–153 D-Index: 11 scientists 154–155 D-Index: 9 scientists 156–157 D-Index: 3 scientists 158 D-Index: 3 scientists 159+ D-Index: 98 scientists
40 D-Index 159+

This scientist: 57 D-Index — 39th percentile

39% of scientists in this discipline score the same or lower.

The last bar groups every scientist with 159 D-Index or more.

Overview

Motomitsu Kitaoka is affiliated with Niigata University in Japan and specializes in biochemistry, genetics, and molecular biology with a focus on enzymatic functions and applications. Their research primarily addresses enzyme production and characterization, enzyme catalysis and immobilization, microbial metabolites in food biotechnology, infant nutrition and health, diet, metabolism, and disease, biofuel production and bioconversion, and digestive system-related health.

The scientist has contributed extensively to the fields of molecular biology, nutrition and dietetics, biotechnology, endocrinology, diabetes and metabolism, and biomedical engineering.

Motomitsu Kitaoka's recent publications include:

  • Priority effects shape the structure of infant-type Bifidobacterium communities on human milk oligosaccharides, 2022, The ISME Journal
  • Next-generation prebiotic promotes selective growth of bifidobacteria, suppressing Clostridioides difficile, 2021, Gut Microbes
  • Identification of difructose dianhydride I synthase/hydrolase from an oral bacterium establishes a novel glycoside hydrolase family, 2021, Journal of Biological Chemistry
  • Automatic Calculation of the Kinetic Parameters of Enzymatic Reactions with Their Standard Errors Using Microsoft Excel, 2022, Journal of Applied Glycoscience
  • Conversion of levoglucosan into glucose by the coordination of four enzymes through oxidation, elimination, hydration, and reduction, 2020, Scientific Reports

Frequently collaborating coauthors include:

  • Shinya Fushinobu (5 publications)
  • Hiroyuki Nakai (4 publications)
  • Takanori Nihira (4 publications)
  • Kazuhiro Chiku (4 publications)
  • Mitsuru Yoshida (4 publications)

Publication venues commonly featuring their research are:

  • Journal of Applied Glycoscience (5 publications)
  • Carbohydrate Research (3 publications)
  • Scientific Reports (2 publications)
  • Applied Microbiology and Biotechnology (2 publications)
  • The ISME Journal (1 publication)

Best Publications

  • Physiology of Consumption of Human Milk Oligosaccharides by Infant Gut-associated Bifidobacteria

    Sadaki Asakuma;Emi Hatakeyama;Tadasu Urashima;Erina Yoshida

  • Bifidobacterium bifidum Lacto-N-Biosidase, a Critical Enzyme for the Degradation of Human Milk Oligosaccharides with a Type 1 Structure

    Jun Wada;Jun Wada;Takuro Ando;Masashi Kiyohara;Hisashi Ashida

  • Novel Putative Galactose Operon Involving Lacto-N-Biose Phosphorylase in Bifidobacterium longum

    Motomitsu Kitaoka;Jiesheng Tian;Mamoru Nishimoto

  • Carbohydrate-Processing Phosphorolytic Enzymes

    Motomitsu Kitaoka;Kiyoshi Hayashi

  • Varied Pathways of Infant Gut-Associated Bifidobacterium to Assimilate Human Milk Oligosaccharides: Prevalence of the Gene Set and Its Correlation with Bifidobacteria-Rich Microbiota Formation

    Mikiyasu Sakanaka;Aina Gotoh;Keisuke Yoshida;Toshitaka Odamaki

  • Identification of N-acetylhexosamine 1-kinase in the complete lacto-N-biose I/galacto-N-biose metabolic pathway in Bifidobacterium longum.

    Mamoru Nishimoto;Motomitsu Kitaoka

  • Ten years of CAZypedia: a living encyclopedia of carbohydrate-active enzymes

    Wade Abbott;Orly Alber;Ed Bayer;Jean-Guy Berrin

  • Practical Preparation of Lacto-N-biose I, a Candidate for the Bifidus Factor in Human Milk

    Mamoru Nishimoto;Motomitsu Kitaoka

  • Evolutionary adaptation in fucosyllactose uptake systems supports bifidobacteria-infant symbiosis.

    Mikiyasu Sakanaka;Morten Ejby Hansen;Aina Gotoh;Toshihiko Katoh

  • Sharing of human milk oligosaccharides degradants within bifidobacterial communities in faecal cultures supplemented with Bifidobacterium bifidum.

    Aina Gotoh;Toshihiko Katoh;Mikiyasu Sakanaka;Yiwei Ling

  • Bifidobacterium longum subsp. infantis uses two different β-galactosidases for selectively degrading type-1 and type-2 human milk oligosaccharides

    Erina Yoshida;Haruko Sakurama;Masashi Kiyohara;Masahiro Nakajima

  • Recent development of phosphorylases possessing large potential for oligosaccharide synthesis.

    Hiroyuki Nakai;Motomitsu Kitaoka;Birte Svensson;Ken’ichi Ohtsubo

  • Cooperation of β-galactosidase and β-N-acetylhexosaminidase from bifidobacteria in assimilation of human milk oligosaccharides with type 2 structure

    Mika Miwa;Tomohiro Horimoto;Masashi Kiyohara;Masashi Kiyohara;Takane Katayama

  • Synthesis of highly ordered cellulose II in vitro using cellodextrin phosphorylase

    Masao Hiraishi;Kiyohiko Igarashi;Satoshi Kimura;Masahisa Wada

  • Distribution of in vitro fermentation ability of lacto-N-biose I, a major building block of human milk oligosaccharides, in bifidobacterial strains.

    Jin-zhong Xiao;Sachiko Takahashi;Mamoru Nishimoto;Toshitaka Odamaki

  • The first glycosynthase derived from an inverting glycoside hydrolase.

    Yuji Honda;Motomitsu Kitaoka

  • Structural and thermodynamic analyses of solute-binding Protein from Bifidobacterium longum specific for core 1 disaccharide and lacto-N-biose I.

    Ryuichiro Suzuki;Jun Wada;Jun Wada;Takane Katayama;Shinya Fushinobu

  • One-step random mutagenesis by error-prone rolling circle amplification

    Ryota Fujii;Motomitsu Kitaoka;Kiyoshi Hayashi

  • 1,2-α-l-Fucosynthase: A glycosynthase derived from an inverting α-glycosidase with an unusual reaction mechanism

    Jun Wada;Jun Wada;Yuji Honda;Masamichi Nagae;Masamichi Nagae;Ryuichi Kato

  • Bifidobacterial Enzymes Involved in the Metabolism of Human Milk Oligosaccharides

    Motomitsu Kitaoka

  • Chitobiose Phosphorylase from Vibrio proteolyticus, a Member of Glycosyl Transferase Family 36, Has a Clan GH-L-like (α/α)6 Barrel Fold

    Masafumi Hidaka;Yuji Honda;Motomitsu Kitaoka;Satoru Nirasawa

  • Error-prone rolling circle amplification: the simplest random mutagenesis protocol

    Ryota Fujii;Motomitsu Kitaoka;Kiyoshi Hayashi

Frequent Co-Authors

Shinya Fushinobu
Shinya Fushinobu University of Tokyo
Kenji Yamamoto
Kenji Yamamoto Ishikawa Prefectural University
Hirofumi Shoun
Hirofumi Shoun University of Tokyo
Hidehiko Kumagai
Hidehiko Kumagai Ishikawa Prefectural University
Birte Svensson
Birte Svensson Technical University of Denmark
Kiyohiko Igarashi
Kiyohiko Igarashi University of Tokyo
Masahiro Samejima
Masahiro Samejima University of Tokyo
Kazuo Sakka
Kazuo Sakka Mie University
Peng George Wang
Peng George Wang Georgia State University
John F. Robyt
John F. Robyt Iowa State University

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