Food · Fermented foods
Tosaka-nori (Cockscomb Seaweed)
とさかのり (Tosaka-nori)
Also known as: Tosaka-nori, Cockscomb seaweed, Meristotheca papulosa, とさかのり, 鶏冠海苔, Aka-tosaka (red), Ao-tosaka (green)
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| Category | Food |
|---|---|
| Japanese labeling name | とさかのり |
| Common Japanese notations | とさかのり, 鶏冠海苔, トサカノリ |
| Origin | Meristotheca papulosa; harvested in Pacific coastal regions; processed in two color forms (red aka-tosaka and bleached green ao-tosaka) |
| Typical functions | Sashimi platter accompaniment — defining colorful garnish, Salad and side dish ingredient |
| Regulatory status in Japan | Standard agricultural product labeling. Color processing (bleaching for ao-tosaka) requires disclosure. Not a designated allergen. |
Tosaka-nori (とさかのり / 鶏冠海苔) — Meristotheca papulosa — is a sashimi-platter accompaniment seaweed processed in two color forms: aka-tosaka (red, natural) and ao-tosaka (green, bleached). The OEM positioning is foodservice and retail garnish specialty.
Classification
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Product applications
Functions
Regulatory tags
Origin
Used in (typical product categories)
Finished-product categories that commonly include this ingredient in Japanese-market formulations.
- Aka-tosaka (red) and ao-tosaka (green) salt-preserved retail
- Pre-processed tosaka-nori for foodservice
What it is
Meristotheca papulosa cockscomb-shaped red seaweed.
Typical uses in Japanese products
Sashimi platter accompaniment.
Salad and side dish.
For OEM: salt-preserved retail and foodservice supply.
Regulatory classification in Japan
Standard food labeling. Color processing disclosure. Not a designated allergen.
Regulatory classification in other markets
| EU | Niche specialty positioning. |
|---|---|
| USA | Niche specialty in Japanese-cuisine channels. |
| China | Niche specialty positioning. |
| Korea | Niche specialty positioning. |
Example products
Example finished products will be added after verification.
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Sharing similar functions
Ingredients that overlap on functional benefit tags.
From the same origin
Other ingredients that share an origin classification.
References
- MEXT Standard Tables of Food Composition — とさかのり 各形態
Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.