Technology : Electronics And Green Technology

Q 37 / 38

UPSC CSE Prelims 2003

Consider the following statements:

  1. Molasses is a by-product of sugar production process.
  2. Bagasse obtained in the sugar mills is used as a fuel in the boilers to generate steam for the sugar factories.
  3. Sugar can only be produced from sugarcane as the raw material.

Which of these statements are correct?

EXPLANATION

Correct Option

Statement 1 is correct. Molasses is a viscous by-product generated during the sugar refining process. It is the residual syrup left after the crystallization of sugar from sugarcane or sugar beet juice. It finds applications in alcohol production, animal feed, and as an industrial ingredient.

Statement 2 is correct. Bagasse is the fibrous material remaining after sugarcane stalks are crushed to extract their juice. It is commonly utilized as a biofuel within sugar mills to generate steam and electricity, thereby contributing to the energy self-sufficiency of the sugar production process.

Incorrect Options

Statement 3 is incorrect. Sugar is not exclusively produced from sugarcane. While sugarcane is a major source, sugar beet is another significant raw material for sugar production, particularly in temperate regions. Other sources like maple sap and corn (for corn syrup) also exist, demonstrating that sugar production is not limited to sugarcane alone.

SOURCEScience & Technology by Ravi Agrahari, Chapter: Energy Resources