Keio University

Wasabi

Publish: February 08, 2022

"Wasabi" is the Treasure of Azumino

Kenichiro Fukasawa

President of Matsumoto Mita-kai, 1962 Letters

In 1915, Hotaka Station was established on the JR Oito Line, making exchange with Tokyo via freight trains easier and opening up groundbreaking prospects for local industry. Attention was then drawn to the abundant, pure spring water emerging at the edge of the alluvial fan, where rain and snow falling on the foothills of the Northern Alps flow into the Sai and Takase Rivers, leading to the opening of wasabi farms. A representative developer was Yuichi Fukasawa of the "Daio Wasabi Farm." He visited and persuaded landowners of communal land covering 300 households, working with the fury of a lion as if he were the reincarnation of the local legend "Hachimen Daio." He hauled up river gravel to build embankments on one side and created "wasabi fields" on the other, conducting a business that covered both bank protection and wasabi cultivation, thus opening a path for the effective use of land unsuitable for farming. Furthermore, beautiful Azumino has two irrigation canals (segi) dating back to the Edo period that follow the contour lines. It is also an area filled with the scent of cultural and artistic romance, including the rural landscape and the Rokuzan Art Museum. Why not take a drive and stroll from Matsumoto to Azumino?

The "Food Demon" Rosanjin and Wasabi

Hidenori Sasaki

Former Curator of Taro Okamoto Museum of Art, Kawasaki; 1986 Letters, 1989 Master of Letters

Kanoko Okamoto's novel "Shokuma" (The Food Demon) is modeled after Kitaoji Rosanjin. Kanoko's father-in-law, Katei, was Rosanjin's master in calligraphy layout; her husband, the cartoonist Ippei, was a drinking companion of the same generation; and her son, the avant-garde artist Taro, was a target of his sharp tongue. It was a relationship spanning three generations. Rosanjin was active in calligraphy, food, and ceramics, and Kanoko sharply depicts his true image and essence.

In 1921, he opened the Bishoku Club in Kyobashi, and in 1925, the Hoshigaoka Saryo in Akasaka, mastering the way of taste. His ceramic work was based on the philosophy that "dishes are the clothes of the cuisine." In 1951, he had Isamu Noguchi and his wife Yoshiko Yamaguchi live at Mukyo-an within his residence in Kita-Kamakura, and through Noguchi, Rosanjin's fame spread to Europe and America. In 1954, at the Paris restaurant "Tour d'Argent," he ate a top-grade duck dish after adjusting the flavor with light soy sauce and wasabi he had brought with him, impressing the staff. I hear that Kaibara Yuzan from the manga "Oishinbo" is also modeled after Rosanjin.

In "Shokuma," a character says of the protagonist's cooking: "I must tell the master, this is much more your art than anything else." Taste was the essence of Rosanjin, and wasabi was likely the heart of it.

Diversity Seen in Wasabi

Naoya Morishita

Representative of Tokyo Sushi-Making Tour, 2010 Economics

"Diversity" is often translated as "tabousei," but I interpret it as "respecting the happiness that one feels as they are." It means believing in the happiness you feel, even if it is unconventional or a minority view, and celebrating the happiness that the person next to you feels.

When I first started sushi classes for foreigners, I was surprised that the word "Wasabi" was understood by people from every country. Due to the global popularity of "Sushi," wasabi had eventually come to be eaten all over the world. However, the way wasabi is eaten seems to differ greatly by country.

In Japan, it is considered proper etiquette not to dissolve wasabi in soy sauce in order to enjoy the aroma, but in some countries, people eat sushi by dissolving a large amount of wasabi until the soy sauce becomes thick and muddy. When asked if it tastes good, they say it is the most delicious way to eat it. Some critics say such a way of eating is a breach of etiquette, but if the person is happy, isn't that fine?

Feeling that "differences" are "interesting." That is likely the essence of "diversity."

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The Chemistry of the Wasabi "Zing" in the Nose

Takeshi Sugai

Professor, Keio University Faculty of Pharmacy

The pungent component consists of a "wiggly" chain with one more carbon atom than the alcohol in liquor, bonded to a "zing" part. It evaporates easily and hits the nose when taken into the mouth. The spiciness of chili peppers and black pepper contains a large "turtle shell" (ring structure), making it hard to evaporate and appealing to a sensation of heat. Wasabi and horseradish share the same "wiggly" and "zing" parts, but the spiciness of their distant relative, the radish, has an "extra + wiggly" and "zing," giving it a different taste.

The pungency of wasabi disappears quickly, but it can be trapped inside a safe "Kagome-Kagome" (cage-like) substance derived from starch, allowing it to be enjoyed easily. Meanwhile, food preservation materials that gradually release the "wiggly" and "zing" components from a sheet to suppress the growth of germs have been put into practical use.

By the way, the tear-inducing component of onions, which are not closely related, actually has a similar structure. The final stage of the process from "wiggly/no crying" to "wiggly/about to cry" to "wiggly/tears" was elucidated by Japanese researchers and won the 2013 Ig Nobel Prize (Chemistry). The peak season for wasabi is February. If you imagine "wasabi-less" wasabi with your nose, would the tears melt the snow and ice?

*Affiliations and titles are as of the time this magazine was published.

Keio Gijuku Shachu Fellowship

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Keio Gijuku Shachu Fellowship

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