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K. Koyama · SciRah

Researcher profile · Semantic Scholar

K. Koyama

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K. Koyama — researcher profile on SciRah

h-index: 16
Works: 66
Citations: 717

Most-cited papers

Predicting sensory evaluation of spinach freshness using machine learning model and digital images
K. Koyama, Marin Tanaka, B. Cho, Yusaku Yoshikawa +1 more
2021PLoS ONE59 citations Open access
Semantic Scholar
Prediction of population behavior of Listeria monocytogenes in food using machine learning and a microbial growth and survival database
Satoko Hiura, S. Koseki, K. Koyama
2021Scientific Reports57 citations Open access
Semantic Scholar
Determination of “Hass” Avocado Ripeness During Storage Based on Smartphone Image and Machine Learning Model
B. Cho, K. Koyama, Edenio Olivares Díaz, S. Koseki
2020Food and Bioprocess Technology42 citations
Semantic Scholar
Automated detection of internal fruit rot in Hass avocado via deep learning-based semantic segmentation of X-ray images
Takahiro Matsui, H. Sugimori, S. Koseki, K. Koyama
2023Postharvest Biology and Technology37 citations Open access
Semantic Scholar
Non-destructive quality classification of rice taste properties based on near-infrared spectroscopy and machine learning algorithms.
Edenio Olivares Díaz, Haruka Iino, K. Koyama, S. Kawamura +2 more
2023Food Chemistry32 citations Open access
Semantic Scholar
Do bacterial cell numbers follow a theoretical Poisson distribution? Comparison of experimentally obtained numbers of single cells with random number generation via computer simulation.
K. Koyama, Hidekazu Hokunan, Mayumi Hasegawa, S. Kawamura +1 more
2016Food microbiology30 citations
Semantic Scholar
Antibacterial Properties of Melanoidins Produced from Various Combinations of Maillard Reaction against Pathogenic Bacteria
Satoshi Kukuminato, K. Koyama, S. Koseki
2021Microbiology spectrum28 citations Open access
Semantic Scholar
Development of automatic detection model for stem-end rots of ‘Hass’ avocado fruit using X-ray imaging and image processing
Takahiro Matsui, Tatsuki Kamata, S. Koseki, K. Koyama
2022Postharvest Biology and Technology27 citations Open access
Semantic Scholar
Determination of ‘Hass’ avocado ripeness during storage by a smartphone camera using artificial neural network and support vector regression
B. Cho, K. Koyama, S. Koseki
2021Journal of Food Measurement & Characterization22 citations
Semantic Scholar
Modeling Stochastic Variability in the Numbers of Surviving Salmonella enterica, Enterohemorrhagic Escherichia coli, and Listeria monocytogenes Cells at the Single-Cell Level in a Desiccated Environment
K. Koyama, Hidekazu Hokunan, Mayumi Hasegawa, S. Kawamura +1 more
2016Applied and Environmental Microbiology22 citations Open access
Semantic Scholar
Survival Kinetics of Salmonella enterica and Enterohemorrhagic Escherichia coli on a Plastic Surface at Low Relative Humidity and on Low-Water Activity Foods.
Hidekazu Hokunan, K. Koyama, Mayumi Hasegawa, S. Kawamura +1 more
2016Journal of Food Protection22 citations Open access
Semantic Scholar
Is skipping the definition of primary and secondary models possible? Prediction of Escherichia coli O157 growth by machine learning.
K. Koyama, Kyosuke Kubo, Satoko Hiura, S. Koseki
2021Journal of Microbiological Methods21 citations Open access
Semantic Scholar
Classification of food spoilage bacterial species and their sodium chloride, sodium acetate and glycine tolerance using chemometrics analysis and Raman spectroscopy.
Takashi Yamamoto, J. N. Taylor, S. Koseki, K. Koyama
2021Journal of Microbiological Methods21 citations Open access
Semantic Scholar
Stochastic modeling of variability in survival behavior of Bacillus simplex spore population during isothermal inactivation at the single cell level using a Monte Carlo simulation.
H. Abe, K. Koyama, S. Kawamura, S. Koseki
2019Food microbiology18 citations
Semantic Scholar
Development of a Maillard Reaction–Based Time-Temperature Integrator/indicator (TTI) for Visual Monitoring of Chilled Beef During Long-term Storage and Distribution
Kentaro Sakai, Jung Hyun Lee, C. Kocharunchitt, T. Ross +3 more
2020Food and Bioprocess Technology17 citations Open access
Semantic Scholar
Stochastic simulation for death probability of bacterial population considering variability in individual cell inactivation time and initial number of cells.
K. Koyama, H. Abe, S. Kawamura, S. Koseki
2019Journal of food microbiology17 citations
Semantic Scholar
Describing Uncertainty in Salmonella Thermal Inactivation Using Bayesian Statistical Modeling
K. Koyama, Zafiro Aspridou, S. Koseki, K. Koutsoumanis
2019Frontiers in Microbiology15 citations Open access
Semantic Scholar
Calculating stochastic inactivation of individual cells in a bacterial population using variability in individual cell inactivation time and initial cell number.
K. Koyama, H. Abe, S. Kawamura, S. Koseki
2019Journal of Theoretical Biology15 citations
Semantic Scholar
Prediction of growth/no growth status of previously unseen bacterial strain using Raman spectroscopy and machine learning
Takashi Yamamoto, J. N. Taylor, S. Koseki, K. Koyama
2023LWT14 citations Open access
Semantic Scholar
Why Does Cronobacter sakazakii Survive for a Long Time in Dry Environments? Contribution of the Glass Transition of Dried Bacterial Cells
Kyeongmin Lee, K. Koyama, K. Kawai, S. Koseki
2021Microbiology spectrum14 citations Open access
Semantic Scholar
Bayesian Generalized Linear Model for Simulating Bacterial Inactivation/Growth Considering Variability and Uncertainty
Satoko Hiura, H. Abe, K. Koyama, S. Koseki
2021Frontiers in Microbiology14 citations Open access
Semantic Scholar
Recent advances in predictive microbiology: theory and application of conversion from population dynamics to individual cell heterogeneity during inactivation process
S. Koseki, K. Koyama, H. Abe
202114 citations
Semantic Scholar
Transforming kinetic model into a stochastic inactivation model: Statistical evaluation of stochastic inactivation of individual cells in a bacterial population.
Satoko Hiura, H. Abe, K. Koyama, S. Koseki
2020Food microbiology12 citations
Semantic Scholar
Describing the Individual Spore Variability and the Parameter Uncertainty in Bacterial Survival Kinetics Model by Using Second-Order Monte Carlo Simulation
H. Abe, K. Koyama, Kohei Takeoka, S. Doto +1 more
2020Frontiers in Microbiology12 citations Open access
Semantic Scholar
Estimation of the probability of bacterial population survival: Development of a probability model to describe the variability in time to inactivation of Salmonella enterica.
K. Koyama, Hidekazu Hokunan, Mayumi Hasegawa, S. Kawamura +1 more
2017Food microbiology10 citations
Semantic Scholar
Machine learning prediction of Leuconostoc spp. growth inducing spoilage in cooked deli foods considering the effect of glycine and sodium acetate.
M. Kataoka, Hiroshi Ono, Junko Shinozaki, K. Koyama +1 more
2024Journal of Food Protection9 citations Open access
Semantic Scholar
A New Dose-Response Model for Estimating the Infection Probability of Campylobacter jejuni Based on the Key Events Dose-Response Framework
H. Abe, Kohei Takeoka, Yuto Fuchisawa, K. Koyama +1 more
2021Applied and Environmental Microbiology9 citations Open access
Semantic Scholar
Isolation and Identification of the Antibacterial Compounds Produced by Maillard Reaction of Xylose with Phenylalanine or Proline.
Kazuho Aonishi, Shungo Miyao, Lisa Yokoi, Naoki Kitaoka +3 more
2024Journal of Agricultural and Food Chemistry8 citations
Semantic Scholar
The role of glass transition temperature (Tg) and storage temperature (Ts) in explaining the survival behavior of dried Bacillus cereus.
Tatsuya Inomata, Kiyoshi Kawai, K. Koyama, S. Koseki
2025Journal of food microbiology7 citations Open access
Semantic Scholar
Antibacterial effect of melanoidins derived from xylose and phenylalanine against Bacillus cereus and Clostridium perfringens.
Eisuke Maesaka, Satoshi Kukuminato, Kazuho Aonishi, K. Koyama +1 more
2023Journal of Food Protection7 citations Open access
Semantic Scholar
Soft-labeling approach along with an ensemble of models for predicting subjective freshness of spinach leaves
K. Koyama, Suxing Lyu
2022Computers and Electronics in Agriculture7 citations
Semantic Scholar
How many repetitions per condition are required for developing a stable growth/no growth boundary model for Bacillus simplex spores?
Natsuki Tsuruma, S. Doto, Wataru Ishida, K. Koyama +1 more
20217 citations
Semantic Scholar
Rapid detection and enumeration of aerobic mesophiles in raw foods using dielectrophoresis.
U. Ogawa, K. Koyama, S. Koseki
2021Journal of Microbiological Methods7 citations
Semantic Scholar
Stochastic evaluation of Salmonella enterica lethality during thermal inactivation.
H. Abe, K. Koyama, S. Kawamura, S. Koseki
2018Journal of food microbiology7 citations
Semantic Scholar
Hierarchal ranking sensory evaluation test of fresh produce quality: A case study of injured cherry tomato images
Sei Abe, Takahiro Matsui, S. Koseki, K. Koyama
2024Food Quality and Preference6 citations Open access
Semantic Scholar
Bayesian statistical modeling to describe uncertainty of thermal inactivation behaviour of bacterial spores
S. Doto, H. Abe, K. Koyama, S. Koseki
20216 citations
Semantic Scholar
Mechanism of Volatile Fatty Acid Removal in a Fixed Biofilm Methane Fermentation Reactor
Y. Inoue, K. Koyama
19886 citations
Semantic Scholar
Evaluation of Strain Variability in Inactivation of Campylobacter jejuni in Simulated Gastric Fluid by Using Hierarchical Bayesian Modeling
K. Koyama, J. Ranta, Kohei Takeoka, H. Abe +1 more
2021Applied and Environmental Microbiology5 citations Open access
Semantic Scholar
Modeling Invasion of Campylobacter jejuni into Human Small Intestinal Epithelial-Like Cells by Bayesian Inference
H. Abe, K. Koyama, S. Koseki
2020Applied and Environmental Microbiology5 citations Open access
Semantic Scholar
Ranking Prediction of Fresh Produce Quality: A Case Study of Strawberry Ripeness
Yukihisa Nagaki, Sei Abe, S. Koseki, K. Koyama
2025Food and Bioprocess Technology4 citations
Semantic Scholar
Mathematical model for analyzing the effect of storage conditions on the visually perceived freshness of strawberries via surface luminance distribution
Raki Takemoto, K. Koyama, Takashi Watanabe, S. Koseki +1 more
2022Food Packaging and Shelf Life4 citations
Semantic Scholar
Does the firmness vary within a single kiwifruit? Estimation of firmness distribution in individual fruit by compressed air deformation measurement
Rio Okaniwa, K. Koyama, S. Koseki
2021Journal of Food Measurement & Characterization4 citations
Semantic Scholar
Application of growth rate from kinetic model to calculate stochastic growth of a bacteria population at low contamination level.
K. Koyama, Satoko Hiura, H. Abe, S. Koseki
2021Journal of Theoretical Biology4 citations
Semantic Scholar
Reconsidering stochasticity in modeling of bacterial population growth and inactivation with technical and biological variability.
K. Koyama, Zafiro Aspridou, H. Abe, Konstantinos Koutsoumanis +1 more
2025Journal of Food Protection3 citations Open access
Semantic Scholar
Formation of Antibacterial Maillard Reaction Products from D-xylose and L-phenylalanine during Stewing Cooking.
H. Hirakawa, Hiroshi Ono, Junko Shinozaki, K. Koyama +1 more
2025Journal of Food Protection2 citations Open access
Semantic Scholar
Effects of at-home-preparation on the risk of foodborne illness in Japan: Analysis of quantitative microbial risk assessment of Escherichia coli O157:H7, Salmonella Typhimurium, Listeria monocytogenes, and Campylobacter jejuni in lettuce salad made at home
H. Abe, A. Ando, K. Koyama, S. Koseki
2024Microbial Risk Analysis2 citations Open access
Semantic Scholar
Experimentally observed Campylobacter jejuni survival kinetics in chicken meat products during model gastric digestion tended to be lower than model predictions.
Kohei Takeoka, H. Abe, K. Koyama, S. Koseki
2021Food microbiology2 citations Open access
Semantic Scholar
Impact of Low Humidity on Suppressing Stem-End Rot in Avocado During Ripening
Yoan Felanny Lembono, Takahiro Matsui, S. Koseki, K. Koyama
2025Food and Bioprocess Technology1 citations
Semantic Scholar
Development of a novel procedure for detecting bloody milk based on an objective quantification using opal-glass methods.
T. Sugawara, S. Koseki, K. Koyama
2025Food Chemistry1 citations Open access
Semantic Scholar
When should postharvest avocado fruit rots be inspected via X-rays? Relationship between internal fruit rot development and skin color alteration in “Hass” avocados
Takahiro Matsui, S. Koseki, K. Koyama
2025Postharvest Biology and Technology1 citations
Semantic Scholar

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