Kunimasa Koga

884 total citations
36 papers, 751 citations indexed

About

Kunimasa Koga is a scholar working on Molecular Biology, Physical and Theoretical Chemistry and Food Science. According to data from OpenAlex, Kunimasa Koga has authored 36 papers receiving a total of 751 indexed citations (citations by other indexed papers that have themselves been cited), including 10 papers in Molecular Biology, 8 papers in Physical and Theoretical Chemistry and 7 papers in Food Science. Recurrent topics in Kunimasa Koga's work include thermodynamics and calorimetric analyses (7 papers), Phytochemicals and Antioxidant Activities (6 papers) and Saffron Plant Research Studies (5 papers). Kunimasa Koga is often cited by papers focused on thermodynamics and calorimetric analyses (7 papers), Phytochemicals and Antioxidant Activities (6 papers) and Saffron Plant Research Studies (5 papers). Kunimasa Koga collaborates with scholars based in Japan, India and United States. Kunimasa Koga's co-authors include Shigeaki Fujikawa, Satoshi Nakamura, Kyoji Yoshino, Sueko Hayashi, Hajime Yoshizumi, Yûkô Fukui, Umpei Nagashima, Kazunori Yamamoto, Nobuyuki Nishi and Naoki Higashi and has published in prestigious journals such as Journal of the American Chemical Society, Biochemical and Biophysical Research Communications and Applied Microbiology and Biotechnology.

In The Last Decade

Kunimasa Koga

36 papers receiving 712 citations

Peers

Kunimasa Koga

BIOMA

EEE

Fengchao Cui China

José Campos‐Terán Mexico

Tânia Santos de Almeida Portugal

Sandrine Morandat France

Enrico Caneva Italy

Haoyang Zou China

Ying Qiao China

Giovanna Navarra Italy

Shuangming Li China

Philippe Wilson United Kingdom

Fengchao Cui China

Kunimasa Koga

330 ×1.7

98 ×0.7

66 ×0.7

107 ×1.2

BIOMA

92 ×1.1

EEE

Citations per year, relative to Kunimasa Koga Kunimasa Koga (= 1×) peers Fengchao Cui

Countries citing papers authored by Kunimasa Koga

Since Specialization

Citations

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

Fields of papers citing papers by Kunimasa Koga

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

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

Co-authorship network of co-authors of Kunimasa Koga

This figure shows the co-authorship network connecting the top 25 collaborators of Kunimasa Koga. A scholar is included among the top collaborators of Kunimasa Koga 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 Kunimasa Koga. Kunimasa Koga 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

Yoshino, Kyoji, et al.. (2015). Antioxidant Activity of Salacia Plant (<i>Salacia reticulata</i>). Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi). 56(4). 144–150. 3 indexed citations

Inoue, Shigeaki, et al.. (2013). Fermentation of non-sterilized fish biomass with a mixed culture of film-forming yeasts and lactobacilli and its effect on innate and adaptive immunity in mice. Journal of Bioscience and Bioengineering. 116(6). 682–687. 7 indexed citations

Koga, Kunimasa, et al.. (2012). Proanthocyanidin Oligomers Isolated from Salacia reticulata leaves potently Inhibit Pancreatic Lipase Activity. Journal of Food Science. 78(1). H105–11. 13 indexed citations

Koga, Kunimasa, et al.. (2011). Profile of non-volatiles in whisky with regard to superoxide dismutase activity. Journal of Bioscience and Bioengineering. 112(2). 154–158. 4 indexed citations

Yoshino, Kyoji, et al.. (2010). Inhibitory Effects of Hana-yuzu (Citrus hanaju) on Mouse Stress-induced Gastritis and its Antioxidative Activities. 1 indexed citations

Yoshino, Kyoji, et al.. (2009). Anti-Diabetic Activity of a Leaf Extract Prepared fromSalacia reticulatain Mice. Bioscience Biotechnology and Biochemistry. 73(5). 1096–1104. 25 indexed citations

Koga, Kunimasa, Tadashi Tamura, & Hisato Ikemoto. (2008). Calorimetric Evaluations of Bacillus subtilis Vegetative and Spore Cells Colonial Growth and Suppressive Effects of Sucrose Monopalmitate. Biocontrol Science. 13(4). 111–118. 4 indexed citations

Higashi, Naoki, et al.. (2007). Antioxidant Activities of Acidic Xylooligosaccharide. 41. 103–105. 2 indexed citations

Koga, Kunimasa, et al.. (2007). Reactive Oxygen Scavenging Activity of Matured Whiskey and Its Active Polyphenols. Journal of Food Science. 72(3). 26 indexed citations

10.

Yoshino, Kyoji, Naoki Higashi, & Kunimasa Koga. (2006). Inhibitory Effects of Acidic Xylooligosaccharide on Stress-induced Gastric Inflammation in Mice. Food Hygiene and Safety Science (Shokuhin Eiseigaku Zasshi). 47(6). 284–287. 16 indexed citations

11.

Koga, Kunimasa. (2004). Evaluation of the Growth Activity of Microbial Colonies on Solid Medium using Calorimetry. Netsu sokutei. 31(3). 117–124. 2 indexed citations

12.

Koga, Kunimasa, et al.. (2004). Evaluation of the Growth Activity of Escherichia coli and Staphylococcus aureus Colonies on Solid Medium Using Microbial Calorimetry. Biocontrol Science. 9(1/2). 21–28. 3 indexed citations

13.

Koga, Kunimasa, et al.. (2001). Calrorimetric Studies on the Ability of Organic Matter Decomposition by Microbes in Different Kinds of Soils. Netsu sokutei. 28(2). 54–61. 4 indexed citations

14.

Konishi, Tetsuya, et al.. (1991). Immobilization of xylanase from Trichoderma viride (reesei) mutant K-10-34. Journal of Fermentation and Bioengineering. 71(6). 453–453. 1 indexed citations

15.

Fujikawa, Shigeaki, et al.. (1988). Immobilization of ?-glucosidase in calcium alginate gel using genipin as a new type of cross-linking reagent of natural origin. Applied Microbiology and Biotechnology. 28(4-5). 440–441. 20 indexed citations

16.

Fujikawa, Shigeaki, et al.. (1987). Brilliant skyblue pigment formation from gardenia fruits. Journal of Fermentation Technology. 65(4). 419–424. 41 indexed citations

17.

Fujikawa, Shigeaki, Yûkô Fukui, Kunimasa Koga, et al.. (1987). Structure of genipocyanin G1, a spontaneous reaction product between genipin and glycine. Tetrahedron Letters. 28(40). 4699–4700. 72 indexed citations

18.

Fujikawa, Shigeaki, et al.. (1987). The continuous hydrolysis of geniposide to genipin using immobilized ?-glucosidase on calcium alginate gel. Biotechnology Letters. 9(10). 697–702. 56 indexed citations

19.

Koga, Kunimasa. (1985). Calorimetric studies on the growth of immobilised yeast. Netsu sokutei. 12(4). 205–212. 1 indexed citations

20.

Nakamura, Satoshi, Sueko Hayashi, & Kunimasa Koga. (1976). Effect of periodate oxidation on the structure and properties of glucose oxidase. Biochimica et Biophysica Acta (BBA) - Enzymology. 445(2). 294–308. 98 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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