Question:
Which among the following tastes has highest threshold value?
Which among the following tastes has highest threshold value?
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Low threshold = High sensitivity (e.g., Bitterness). High threshold = Low sensitivity (e.g., Sweetness).
Updated On: Jul 23, 2026
- Sweetness
- Saltiness
- Bitterness
- Sourness
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The Correct Option is A
Solution and Explanation
Step 1: Understanding the Concept:
The "threshold value" in sensory science refers to the minimum concentration of a substance required for a person to detect or identify a specific taste. A high threshold means the substance must be present in a large amount to be detected (low sensitivity). A low threshold means even a tiny amount is easily detected (high sensitivity).
Step 2: Detailed Explanation:
Human sensitivity to the four primary tastes varies significantly:
- Bitterness: Has the lowest threshold value. Humans are highly sensitive to bitterness as an evolutionary defense mechanism, as many toxic plants are bitter.
- Sourness: Has a relatively low threshold.
- Saltiness: Has a moderate threshold.
- Sweetness: Has the highest threshold value. This means that compared to salt or acid, sugar must be present in much higher concentrations for the "sweet" taste to be registered by the brain. In dairy products, small amounts of protein breakdown (bitter) are noticed immediately, while sugar must be added in percentages to be perceived as distinctly sweet.
Step 3: Final Answer:
Sweetness has the highest threshold value among the options.
The "threshold value" in sensory science refers to the minimum concentration of a substance required for a person to detect or identify a specific taste. A high threshold means the substance must be present in a large amount to be detected (low sensitivity). A low threshold means even a tiny amount is easily detected (high sensitivity).
Step 2: Detailed Explanation:
Human sensitivity to the four primary tastes varies significantly:
- Bitterness: Has the lowest threshold value. Humans are highly sensitive to bitterness as an evolutionary defense mechanism, as many toxic plants are bitter.
- Sourness: Has a relatively low threshold.
- Saltiness: Has a moderate threshold.
- Sweetness: Has the highest threshold value. This means that compared to salt or acid, sugar must be present in much higher concentrations for the "sweet" taste to be registered by the brain. In dairy products, small amounts of protein breakdown (bitter) are noticed immediately, while sugar must be added in percentages to be perceived as distinctly sweet.
Step 3: Final Answer:
Sweetness has the highest threshold value among the options.
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