Question

In which of the following evaporators can fruit juices be concentrated?

• A. \(\text{Long tube}\)
• B. \(\text{High pressure}\)
• C. \(\text{Falling film}\)
• D. \(\text{Crude filter paper}\)

Hint:

Falling film evaporators prevent overheating, making them ideal for heat-sensitive liquids like fruit juices.

Answer 1

The Correct Option is C

Step 1: Understanding juice concentration methods. - Falling film evaporators allow gentle concentration with minimal heat exposure, preserving flavor and nutrients.
Step 2: Explanation of incorrect options. - (A) Long tube: Suitable for industrial applications but less efficient for heat-sensitive juices. - (B) High pressure: Not a conventional method for juice evaporation. - (D) Crude filter paper: Not an evaporator.
Step 3: Selecting the correct option. Since falling film evaporators efficiently concentrate fruit juices, the correct answer is (C) Falling film.