Question

Name the sensory method recommended for fish quality testing in fish landing centers ?

• A. Deo-trio test
• B. Torry scheme
• C. FSSAI grading
• D. EU grading

Hint:

The EU grading scheme (Grades Extra, A, B, and Unfit) is designed specifically for rapid, practical, on-site inspections at commercial docks and auctions, unlike the Torry scheme which is preferred for detailed laboratory analysis.

Answer 1

The Correct Option is D

Step 1: Understanding the Concept:
Sensory evaluation is the most rapid and practical method used to assess fish freshness at commercial landing sites and wholesale markets.
It involves evaluating changes in the appearance, odor, texture, eyes, gills, and skin of the fish using standardized grading scales.

Step 2: Detailed Explanation:
To facilitate international trade and maintain quality standards, several sensory schemes have been developed:
- Deo-trio (Duo-trio) test: A discriminative laboratory sensory test used to determine if a statistical difference exists between two samples, not used for rapid field grading.
- Torry scheme: A highly detailed sensory scoring system developed by the Torry Research Station in Scotland, primarily used in research and quality control laboratories due to its complexity.
- EU grading scheme: The European Union (EU) freshness grading scheme is a simplified, highly standardized sensory method recommended for rapid quality testing at fish landing centers and auctions.
It classifies fish into three main categories of freshness fit for human consumption:
1. Grade Extra (E): High freshness, displaying bright, metallic colors, transparent eyes, and fresh seaweed odor.
2. Grade A: Good quality, with slight loss of color and some mucus.
3. Grade B: Marginally acceptable quality, displaying dull skin, cloudy eyes, and a neutral or slightly sour odor.
Fish below Grade B are declared "Unfit" for human consumption.
Its simplicity, speed, and reliability make the EU grading scheme the standard method for rapid, non-destructive quality testing at commercial fish landing centers.

Step 4: Final Answer:
The sensory method recommended for fish quality testing at fish landing centers is the EU grading scheme.