Zensho 's Research and Development

A challenge to new technologies

In our research and development department, we are working on technological innovations in each process of MMD (Metal Mixing), which is fundamental to Zensho Group's mission of "providing safe and delicious food to people all over the world at affordable prices." The results of these efforts are used to further improve the taste and freshness of ingredients and to provide products and services that will please our customers.

How MMD works

1. Food ingredient development

To provide safe and delicious food at affordable prices, we are engaged in research and development of ingredients that aim for high quality, high yield, and stable production.
In particular, with regard to rice, Japan's staple food, we are introducing the latest genome analysis and sensing technologies and conducting research in collaboration with various stages of MMD (Multi-Material Dynamics), including production sites.

Food ingredient development

2. Development of fermentation and brewing technologies

We conduct research and development related to soy sauce. Soy sauce is a unique Japanese seasoning that is indispensable to Japanese cuisine.
We envision soy sauce as a seasoning that will allow people around the world to enjoy Japanese cuisine, and we conduct scientific evaluations of its deliciousness and characteristics, as well as research and development to ensure stable, high-quality production.

Food ingredient development

1. Food Processing Technology Development

In order to provide safe and delicious food to the world in the fields of food service, retail, nursing care, and e-commerce, we are working on product development that utilizes various cooking and processing technologies, including rheology, texture, and flavoring at frozen, refrigerated, and ambient temperatures. Developing unique new technologies is also one of our themes.

Food ingredient development

1. Analysis techniques for taste

To optimize product development, raw material selection, and cooking/processing steps, we utilize the latest analytical technologies to analyze the chemical components of taste, aroma, and texture—the elements that make something delicious.

Food ingredient development

2. Sensory evaluation of taste

We are engaged in research and development utilizing the latest sensory evaluation technologies, aiming to quantitatively express deliciousness. We also train sensory evaluators to support our marketing strategies and product development.

Food ingredient development

3. Analysis of the mechanism of deliciousness

To understand the deliciousness that humans experience when they eat food, we are conducting research to elucidate the mechanisms of sensory information such as taste and smell.
We are using the results obtained to conduct research that supports the development of new ingredients and products that people will want to eat again.

Food ingredient development

1. The health benefits of eating out

I am engaged in research on the health value of restaurant menus. To date, I have conducted research on postprandial blood glucose levels, n-3 fatty acids (omega-3), and the installation of devices for estimating vegetable intake, and I have presented the results of my research at academic conferences.

Food ingredient development

2. Dissemination of health information

We aim to create a food environment where customers can naturally become healthier, and we conduct research and studies on the components contained in food ingredients. We apply the research results to product development and promotion in collaboration with our business companies, and we regularly share this information on our website and official X account.
Furthermore, we provide a wide range of information on food and health, including the functions of nutrients, foods and dishes containing each nutrient, tips on how to eat them, and recommended products.

Healthy Eating Research Lab HP

Healthy Eating Research Lab X (formerly Twitter)

Zensho Healthy Eating Research Lab Healthy Eating Research Lab X

1. Robot demonstration experiment

To enhance the dining experience at our restaurants, we are engaged in research and development of communication technologies that utilize new technologies such as AI (artificial intelligence) and robotics.
Family restaurant "Coco's" conducted a demonstration experiment using robots to provide hospitality in order to make dining more enjoyable.

Food ingredient development

2. Data analysis to deepen customer understanding

We are researching technology that uses AI to analyze customer feedback and store conditions on a daily basis.
These technologies enable us to efficiently predict increasingly diverse and sophisticated customer needs and accurately grasp the current state of our stores, thereby contributing to improved service quality.

Food ingredient development

Influence of Sushi Meal Configuration and Nutrient Profile on Postprandial Glycemia

[Announcement Date] April 24, 2026
[Society name] The British Feeding and Drinking Group Annual Meeting 50th Anniversary
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute

Zensho Holdings' Initiatives to Connect Society Through Food and Health: From the Pursuit of Deliciousness to Disaster Relief

[Announcement Date] March 11, 2026
[Conference Name] The Japan Society for Bioscience, Biotechnology, and Agrochemistry 2026 Annual Meeting
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute

Fructooligosaccharides enhance the sweetness of sweeteners.

[Announcement Date] November 23, 2025
[Conference Name] The 30th (2025) Commemorative Conference of the Japan Society for Sensory Evaluation
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute

A preference science approach to understanding "deliciousness" in dining out

[Announcement Date] November 2025
[Academic Society Name] The Japanese Journal of Taste and Smell Research
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute

Fructooligosaccharides enhance the sweetness of sweeteners.

[Announcement Date] October 2025
[Academic Society Name] Journal of the Japanese Society for Sensory Evaluation, Vol. 29, No. 2
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute

Differences in the use of vocabulary and scales in taste evaluation: Lessons learned from umami evaluation research in Asia

[Announcement Date] October 6, 2025
[Conference Name] Koku Research Society 2025 Public Symposium
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute

Initiatives to increase vegetable intake through restaurants.

[Announcement Date] September 13, 2025
[Conference Name] The 72nd Annual Meeting of the Japanese Society for Nutrition Improvement
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute Food for Health! Healthy Eating Research Lab
Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute
Kagome Co., Ltd.

The effect of simultaneous intake of carbohydrates and proteins on postprandial blood glucose fluctuations in humans.

[Announcement Date] August 28, 2025
[Conference Name] The 72nd Annual Meeting of the Japan Society for Food Science and Technology (Young Researchers' Meeting (Poster Presentation))
[Source] Department of Quality Evaluation, Graduate School of Agriculture, Kyoto University
Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute: Health Through Food! Healthy Eating Research Lab

The effect of simultaneous intake of carbohydrates and proteins on postprandial blood glucose fluctuations in humans.

[Announcement Date] August 28, 2025
[Conference Name] The 72nd Annual Meeting of the Japan Society for Food Science and Technology (General Presentation (Oral Presentation))
[Source] Department of Quality Evaluation, Graduate School of Agriculture, Kyoto University
Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute: Health Through Food! Healthy Eating Research Lab

Oral detection of a fatty acid is affected by rinses of the KATP channel modulators

[Announcement Date] September 12, 2024
[Conference Name] The 58th Annual Meeting of the Japanese Society for Taste and Smell Research, 2024
[Publisher] Sensory Science and Analytical Chemistry Lab Zensho Central Institute for Science and Technology, Zensho Holdings Co., Ltd
Department of Nutritional Sciences, Rutgers University
Monell Chemical Senses Center

What is occurring to Japanese people missing their perception of the “hometown taste”?

[Announcement Date] September 10, 2024
[Society name] EuroSense2024
[Source] Zensho Central Institute for Science and Technology, Zensho Holdings Co., Ltd.

Differences in vocabulary and scales usage between Asian countries. Cases encountered conducting research in Asia outside Japan.

[Announcement Date] September 9, 2024
[Society name] EuroSense2024, Challenges & Practical Solutions for Consumer Research Implementation across Global Cultures: Perspectives from regional Sensory Science Societies
[Source] Asian Sensory Network
Japanese Society for Sensory Evaluation
Zensho Holdings Co., Ltd.

The Effects of Vegetable Intake Estimation Devices and Nudges on Vegetable Intake During Restaurant Dining: Part 1 - A Survey of Awareness of Vegetable Intake Based on Exit Policies

[Announcement Date] September 8, 2024
[Conference Name] The 71st Annual Meeting of the Japanese Society for Nutrition Improvement
[Announced by] Kagome Co., Ltd.
Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute: Health Through Food! Healthy Eating Research Lab
Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute
Dr. Beni LLC
Aomori University

The Impact of Vegetable Intake Estimation Devices and Nudges on Vegetable Consumption in Restaurants: Part 2 - Impact on Vegetable Menu Order Rates

[Announcement Date] September 8, 2024
[Conference Name] The 71st Annual Meeting of the Japanese Society for Nutrition Improvement
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute Food for Health! Healthy Eating Research Lab
Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute
Kagome Co., Ltd.
Dr. Beni LLC
Aomori University

Oral detection of fat taste via metabolic sensing pathway in human

[Announcement Date] September 2, 2024
[Conference Name] Koku Research Society 2024 Public Symposium
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute, Evaluation Technology Research Laboratory

Oral detection of a fatty acid is enhanced and suppressed by modulators of the KATP channel

[Announcement Date] June 25, 2024
[Conference Name] 2024 ISOT (19th International Symposium on Olfaction and Taste)
[Publisher] Sensory Science and Analytical Chemistry Lab Zensho Central Institute for Science and Technology, Zensho Holdings Co., Ltd
Department of Nutritional Sciences, Rutgers University
Monell Chemical Senses Center

Understanding the differences in perception of umami across generations and identifying the contributing factors.

[Announcement Date] November 26, 2023
[Conference Name] The Japanese Society for Sensory Evaluation, 2023 Conference
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute, Evaluation Technology Research Laboratory

Japanese Generation Z Decreases Ability to Recognize Their Hometown Taste / Elucidation of Changes in the Perception of Umami Among Younger Generations

[Announcement Date] September 11, 2023
[Conference Name] The 57th Annual Meeting of the Japanese Society for Taste and Smell Research
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute, Evaluation Technology Research Laboratory

The effects of low-carbohydrate restaurant and takeout options on postprandial blood glucose levels.

[Announcement Date] August 25, 2023
[Conference Name] The 70th Anniversary Conference of the Japan Society for Food Science and Technology
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute Food for Health! Healthy Eating Research Lab
Kyoto University, Graduate School of Agriculture, Department of Agriculture, Division of Quality Evaluation

Japanese Generation Z Decreases Ability to Recognize Their Hometown Taste

[Announcement Date] August 23, 2023
[Society name] Pangborn2023 (15th Pangborn Sensory Science Symposium)
[Publisher] Sensory Science and Analytical Chemistry Lab Zensho Central Institute for Science and Technology, Zensho Holdings Co., Ltd.

The effect of a two-week fish-based breakfast on the composition of n-3 polyunsaturated fatty acids in human blood.

[Announcement Date] March 14, 2023
[Conference Name] The Japan Society for Bioscience, Biotechnology, and Agrochemistry 2023 Annual Meeting
[Source] Department of Quality Evaluation, Graduate School of Agriculture, Kyoto University
Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute: Health Through Food! Healthy Eating Research Lab

A Novel Voluntary Intake Method to Investigate Taste-Elicited Affective Reactions in Mouse

[Announcement Date] April 29, 2022
[Society name] AChemS XLIV (the Association for Chemoreception Sciences 44th annual meeting)
[Publisher] Sensory Science and Analytical Chemistry Lab Zensho Central Institute for Science and Technology, Zensho Holdings Co., Ltd.
Division of Behavioral Physiology, Graduate School of Human Sciences, Osaka University
Department of Dental Hygiene, Tokyo Dental Junior College

Evaluation of taste-elicited affective reactions in mice by a novel voluntary intake method.

[Announcement Date] September 24, 2021
[Conference Name] The 55th Annual Meeting of the Japanese Society for Taste and Smell Research
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute, Evaluation Technology Research Institute
Department of Behavioral Physiology, Graduate School of Human Sciences, Osaka University
Tokyo Dental College Junior College

The effect of simultaneous consumption of salad and cheese on post-meal blood glucose levels after eating Gyudon

[Announcement Date] August 30, 2019
[Society Name] 66th Annual Meeting of the Japan Society for Food Science and Engineering
[Source] Department of Quality Evaluation, Graduate School of Agriculture, Kyoto University
Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute Health and Nutrition Research Institute
Graduate School of Human Life Sciences, Doshisha Women's University

The effect of Gyudon ingredients and cabbage on post-meal blood glucose levels after eating rice.

[Announcement Date] August 23, 2018
[Society Name] 65th Annual Meeting of the Japan Society for Food Science and Engineering
[Source] Department of Quality Evaluation, Graduate School of Agriculture, Kyoto University
Zensho Holdings Co., Ltd. Zensho Central Technical Research Institute, Food Ingredients Research Institute
Graduate School of Human Life Sciences, Doshisha Women's University

Taste and Aroma Characterization of Matcha Using a Taste Sensor System and Gas Chromatography-Mass Spectrometry-Olfactometry

[Announcement Date] July 27, 2018
[Conference Name] SPISE 2018 (Summer Program in Sensory Evaluation)
[Announced by] Zensho Holdings Co., Ltd. Zensho Central Technology Research Institute, Evaluation Technology Research Institute