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From "Eat Vitamin D(R) Frozen Hanabiratake and kikurage mushrooms are now on sale.

Quick freezing preserves nutrition and taste! Easy and tasty vitamin D supplementation even in your busy life!

株式会社森の環

Mori no Kan Co. (Head office: Takaoka City, Toyama Prefecture; Representative Director: Katsuyoshi Kasuga), a producer and seller of mycorrhizal mushrooms, has released frozen mushrooms "Frozen DD Hanabira" and "Frozen DD Kikurage" as new products in its "Eat Vitamin D(R)" series, which are fortified with vitamin D contained in mushrooms using its proprietary technology (patent pending). Frozen DD Hanabira" and "Frozen DD Kikurage" are two new products in the "Eat Vitamin D(R)" series, which are fortified with vitamin D contained in mushrooms (patent pending).


These products have been developed so that people can effectively consume vitamin D, which is attracting attention as a key to preventing osteoporosis and boosting immunity, in their daily diet. Quick freezing at -40°C makes it easy to use at home without losing the flavor, aroma, texture, and nutritional value of mushrooms, including vitamin D. The product is currently being sold mainly in Nagano Prefecture.


The product is currently available at Tsuruya supermarkets located mainly in Nagano Prefecture, with plans to expand nationwide in the future.



Product Features

Generates vitamin D with a unique patented technology

Morinokan has succeeded in generating vitamin D by artificially irradiating Hanabiratake mushrooms with ultraviolet light, and has applied for a patent. This technology was applied not only to Hanabiratake mushrooms but also to organically grown kikurage mushrooms. 54.9 μg of vitamin D per 100 g of "Frozen DD Hanabiratake" and 21.5 μg of "Frozen DD Kikurage" (according to Japan Food Research Center). According to the Dietary Reference Intakes for Japanese (2025 edition) of the Ministry of Health, Labor and Welfare, the recommended daily intake of vitamin D for men and women aged 18 and older is 9.0 μg, and both products can supplement sufficient amounts of vitamin D. Mushrooms that efficiently produce vitamin D are attracting attention as a true "Eatable Vitamin D(R).


-40°C quick freezing to preserve taste and nutrition

After harvesting, the mushrooms are irradiated with ultraviolet light and immediately flash-frozen at -40°C to preserve the plumpness of Hanabiratake mushrooms and the crunchiness of kikurage mushrooms. Nutritional ingredients such as vitamin D are also preserved.


Easy-to-use frozen type

This product is cut into easy-to-use pieces, so it can be easily used in a variety of dishes such as stir-fries, soups, and one-pot meals.



About Vitamin D

In recent years, vitamin D has been the focus of much attention, as research has revealed that vitamin D, previously thought to be only a "bone-strengthening vitamin," has a variety of health benefits, including regulation of immune function, prevention of infectious diseases such as influenza, muscle building, skin care, mental health, and reduction of cancer and mortality rates. According to the "2023 National Health and Nutrition Survey Results"(*) by the Ministry of Health, Labor and Welfare, the average daily intake of vitamin D per person is 6.6 μg for men and 5.9 μg for women, which is insufficient for the recommended adult intake level of 9.0 μg, so it is important to be aware of the importance of taking vitamin D in the diet. It is important to be aware of the importance of vitamin D in the diet. Ministry of Health, Labour and Welfare, "2023 National Health and Nutrition Survey Results," total of men and women aged 1 year and older (total 4,731 persons)



Product Lineup

Frozen DD Hanabira (frozen Hanabiratake)

Contents: 100 g

Features :Using "premium hanabiratake mushrooms" that have been irradiated with ultraviolet light to enhance vitamin D. Each 100 g contains 54.9 µg of vitamin D. The unique plump and crunchy texture is appealing.


冷凍DDハナビラ

Frozen DD Hanabira


Frozen DD kikurage (frozen organic kikurage)

Content : 100g

Features :Organic JAS-certified. The "Premium Organic Kikurage" is irradiated with ultraviolet rays to enhance vitamin D. Each 100 g contains 21.5 µg of vitamin D. It is characterized by its crunchy texture.


冷凍DDキクラゲ

Frozen DD kikurage


Both products require cooking.



Series Development and Future Prospects

Frozen DD Hanabira and Frozen DD Kikurage are part of the "Eatable Vitamin D(R)" series, which enables people to effectively consume vitamin D through their regular diet. The series has already included fresh DD Hanabira and Salad Mushrooms, five kinds of freeze-dried miso soup and soup, and dried Hanabiratake mushrooms. Many Japanese people in today's society are considered to be vitamin D deficient, and we hope to boost vitamin D intake through food products with "Eat Vitamin D(R)".


花びら茸のお味噌汁・スープ

Hanabiratake Mushroom Miso Soup and Soup

DDハナビラ

DD Hanabira


Sales Information

Date of release: April 21, 2025

Stores: Supermarket Tsuruya (to be expanded in the near future)

Suggested retail price: 298 yen each (excluding tax)



Company Profile

Company name: Morinokan Co.

Head Office: 1239-55, Asitsuke, Takaoka-shi, Toyama

Representative Director: Katsuyoshi Kasuga

Business Description: Production and sales of mushrooms on mycorrhizal beds (Hanabiratake and Hanabiratake mushrooms)

       (The company promotes recycling-oriented agriculture in the production of Hanabiratake mushrooms and chikurage mushrooms,

       The company is one of the top producers of Hanabiratake and chikurage mushrooms.)

Establishment : December 1967

HP : https://morinowa.co.jp/

Web media "Hanabiratake Library" : https://www.hanabiratake-morinowa.com/