In fruit juice, sugar concentration is measured by

Correct option is A

Correct Answer: (A) Refractometer
Explanation:
→ A refractometer is an instrument used to measure the concentration of sugar in fruit juices, syrups, and other liquids. It works by determining the refractive index of a liquid, which changes with the sugar concentration.
→ This device is commonly used in the food industry, especially for measuring the sugar content in juices, to ensure the quality and consistency of the product.
→ The refractive index increases with the concentration of dissolved substances like sugar, so the refractometer helps quantify this relationship.
→ It is important in quality control and food processing, where maintaining specific sugar levels is essential.
Information Booster:
→ Refractometer measures the refractive index of a liquid, which is directly proportional to its concentration of dissolved substances, especially sugars.
→ In fruit juice, a higher refractive index indicates a higher sugar concentration, which can be directly correlated with sweetness and quality.
→ Refractometers are portable and easy to use, making them popular in the field for rapid testing.
→ The Brix scale, which measures the sugar content in an aqueous solution, is often used with refractometers to express the concentration in percentage.
→ Refractometers are essential tools in agriculture, food processing, and beverage industries to ensure proper sugar levels in products.
Additional Information (Other Options):
Option (B) – Chinometer: Used to measure the sugar concentration in liquids but is less common and not the standard tool for fruit juices.
Option (C) – Potometer: Measures the rate of water uptake by plants, not sugar concentration.
Option (D) – Tendrometer: Measures the turgor pressure in plant cells, unrelated to sugar concentration in fruit juices.