Surimi is not just imitation crab; it is a sophisticated feat of protein chemistry.

Food & Drink · Published 3 October 2026 Swipe more like this →

In short: Often dismissed as a low-quality substitute, surimi is actually a marvel of food science. By stabilizing fish proteins against the ravages of freezing, researchers transformed a perishable East Asian staple into a global industry. Discover how salt, sugar, and advanced engineering turned excess fish meat into a culinary chameleon.

Surimi, which translates to ground meat in Japanese, is a versatile paste derived from fish. While it is famously used to mimic the texture and appearance of shellfish like lobster or crab, its history is deeply rooted in East Asian tradition. The earliest production of kamaboko, a classic surimi product, dates back to 1115. For centuries, this paste was sold fresh because freezing it caused the fish proteins to denature, destroying the gel-forming capability required for its signature texture.

The turning point arrived between 1945 and 1950. Following record pollock catches in Hokkaido, a research team led by K. Nishiya discovered that adding salt during processing prevented the spongy texture that typically occurred after freezing. Later, in 1969, Nishitani Yōsuke refined this process by introducing sucrose or sorbitol as cryoprotectants. These carbohydrates stabilized the actomyosin in the fish without the harsh denaturing effects of salt, effectively unlocking the potential for large-scale, at-sea frozen processing. This technological leap, combined with the development of imitation crab in the mid-1970s, allowed surimi to transcend its regional origins and enter the global market.

Today, the industry relies on precise chemical reactions. The curing of the paste is driven by the polymerization of myosin when heated, a process highly dependent on the specific species of fish used. Because of this, high-fat pelagic fish are generally unsuitable. While the industry has evolved to include advanced recovery methods like the mid-1990s decanter technique, it still faces challenges. Consumer perception often unfairly labels surimi as a low-quality product, and rising material costs in the 1990s and 2000s forced many traditional kamaboko producers into bankruptcy. Despite these hurdles, surimi remains a significant global commodity, accounting for 2 to 3 percent of the world's total fisheries supply.

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