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.
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Classification
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Product applications
Functions
Regulatory tags
Origin
Common OEM product categories
Finished-product categories where Japanese OEM manufacturers commonly formulate with this ingredient.
- Aka-tosaka (red) and ao-tosaka (green) salt-preserved retail
- Pre-processed tosaka-nori for foodservice
Ingredient profile
Meristotheca papulosa cockscomb-shaped red seaweed.
OEM applications
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. |
Market reference formulations
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Quick answers
- What is Tosaka-nori (Cockscomb Seaweed)?
- 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.
- What is the regulatory status of Tosaka-nori (Cockscomb Seaweed) in Japan?
- Standard agricultural product labeling. Color processing (bleaching for ao-tosaka) requires disclosure. Not a designated allergen.
- What products typically use Tosaka-nori (Cockscomb Seaweed)?
- Aka-tosaka (red) and ao-tosaka (green) salt-preserved retail / Pre-processed tosaka-nori for foodservice
- Where does Tosaka-nori (Cockscomb Seaweed) come from?
- Meristotheca papulosa; harvested in Pacific coastal regions; processed in two color forms (red aka-tosaka and bleached green ao-tosaka)
- What is the INCI / JSCI labeling name for Tosaka-nori (Cockscomb Seaweed)?
- JSCI: とさかのり
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References
- 文部科学省 (Ministry of Education, Culture, Sports, Science and Technology) 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.