#Japan #Tokyo #Quality Management #Kenko Mayo #Potatoes

Exploring the Fascinating World of Potatoes

In a remarkable event on June 1, 2025, Kenko Mayo Co., Ltd. held a luncheon seminar titled “Exploring the Fascinating World of Potatoes” during the 77th Annual Meeting of the Japanese Society of Home Economics. This initiative demonstrates the company's commitment to enhancing public understanding about potatoes and their significance in food safety and quality management.

Seminar Highlights

The seminar attracted approximately 80 participants, including university representatives and industry professionals. The company’s Research Department presented insights gained from years of experience in potato quality control and storage management. Participants engaged in a quiz format, learning about various potato varieties, their components, and applications while delving into the properties of one of Kenko Mayo's key raw materials: potatoes.

Understanding Potato Storage Characteristics

During the seminar, the audience learned that after harvest, the storage period of potatoes affects their sugar composition, with increases in sucrose, fructose, and glucose levels. Notably, varieties such as 'Danbar' and 'Sayaka' exhibit a trend of heightened sugar content, especially from spring to early summer (around June) the following year. However, as storage prolongs, sprouting and respiration become active, leading to a decrease in sugar levels, particularly evident in 'Kitakari,' 'Touya,' and 'Meikui' varieties. These fluctuations in sugar content and sprouting progress significantly impact the texture and color of products, prompting Kenko Mayo to rigorously manage storage and identify varieties suitable for salads.

Ensuring Safety with Glycoalkaloids

Safety measures regarding glycoalkaloids, such as solanine and chaconine, were also discussed. Known for their potential to cause food poisoning, these compounds tend to accumulate in sprouts and green skins of potatoes. The presentation highlighted how sprouting and exposure to light lead to an increase in glycoalkaloid concentrations, varying significantly among different varieties and even parts of the same potato. Kenko Mayo emphasized the importance of risk assessment and an ongoing monitoring system at the raw material stage to bolster safety management in their production processes.

Domestic Potato Varieties and Future Breeding

According to data from the Seed and Seedling Management Center, the number of registered potato varieties in Japan fluctuated from 85 varieties in 2019 to 65 in 2022, and 70 varieties in 2023. Continued breeding efforts align with consumer needs and applications. Varieties like 'Sayaka,' 'Piruka,' 'Haruka,' and 'Ayutaka' stand out due to their smooth surfaces, facilitating easier peeling and suitability for cooking and processing.

In recent years, the issue of disease caused by the potato cyst nematode has highlighted the benefits of resistant varieties, such as 'Sayaka.' Kenko Mayo actively incorporates these resilient breeds while valuing domestically developed varieties.

Moreover, the company aims to promote not only the commonly distributed 'Danbar' but also other varieties with superior agricultural traits. By sharing information on these new varieties and their characteristics, Kenko Mayo contributes to sustainable potato production and educational initiatives.

Engaging with the Community

As part of its outreach, Kenko Mayo distributed samples of select domestic potato varieties to attendees who expressed interest. This hands-on interaction reflects the company's commitment to fostering knowledge and appreciation of seasonal and quality ingredients among the public.

Moving forward, Kenko Mayo will continue to prioritize meticulous management of potato variety characteristics and storage conditions, while actively introducing disease-resistant domestic varieties. The company's unwavering dedication to delivering safe, high-quality products to customers ensures ongoing improvements in their production processes.

Conclusion

Attendees of the 77th Annual Meeting left the seminar with a deeper understanding of potatoes and their various aspects, from quality control to safety management. Kenko Mayo's efforts in such educational endeavors not only enhance their brand reputation but also contribute positively to the broader food industry.

For more detailed information, visit the Kenko Mayo website.