Food · Fermented foods
Maruaji (Round Scad)
まるあじ (Maruaji)
Also known as: Maruaji, Round scad, Decapterus maruadsi, 丸鯵, マルアジ
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| Category | Food |
|---|---|
| Japanese labeling name | まるあじ |
| Common Japanese notations | まるあじ, 丸鯵, マルアジ |
| Origin | Round scad (Decapterus maruadsi); rounder body-form related to standard maaji (T. japonicus) and muroaji (D. muroadsi); principal domestic regions Nagasaki, Kagoshima, Wakayama, Mie, Shizuoka; **less premium than maaji, less specialty than muroaji** — generally treated as commodity-tier aji; used for niboshi-grade dashi-stock production, processed fish, and budget hiraki; lesser-known retail name 'aoaji' (青鯵) |
| Typical functions | Niboshi-grade dashi-stock production, Hiraki (split-dried) budget tier, Processed-fish raw material (kamaboko, age-mono), Foodservice volume-fish supply |
| Regulatory status in Japan | Standard food labeling. **Origin disclosure.** **Mackerel/aji JAS-mandatory allergen — must be disclosed.** Cheaper-tier aji. |
Maruaji (まるあじ / 丸鯵) is round scad (Decapterus maruadsi) — rounder relative of maaji and muroaji. Commodity-tier aji used for niboshi-grade dashi-stock, processed-fish raw material, budget hiraki. Nagasaki, Kagoshima, Wakayama regions.
Classification
Tags below link to other ingredients sharing the same attribute, so you can pivot from one ingredient to its peers.
Product applications
Functions
Regulatory tags
Origin
Used in (typical product categories)
Finished-product categories that commonly include this ingredient in Japanese-market formulations.
- Frozen maruaji B2B (processed-fish raw material major)
- Niboshi-grade B2B
- Budget-tier hiraki retail
What it is
Decapterus maruadsi round scad (commodity-tier aji).
Typical uses in Japanese products
Niboshi-grade dashi-stock.
Budget-tier hiraki split-dried.
Processed-fish raw material (kamaboko etc.).
Foodservice volume.
For OEM: frozen B2B processed-fish raw material, niboshi B2B, budget hiraki retail.
Regulatory classification in Japan
Standard food labeling. **Mackerel/aji JAS-mandatory allergen.**
Regulatory classification in other markets
| EU | **Fish EU-mandatory allergen.** Established commodity fish. |
|---|---|
| USA | Fish allergen disclosure. Standard processed-fish category. |
| China | Established commodity fish. |
| Korea | Established commodity fish. |
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 — まるあじ
Last updated: 2026-04-28. Ingredient entries are reviewed at least annually against current regulatory listings.