Allied & ICAR Exam Bank • ALLIED_0619 MCQ • 1 Mark

Section 6: Agricultural Process Engineering

Psychrometry and Grain Drying

Subtopic: Psychrometry and Grain Drying

Question Statement:

Paddy parboiling involves hydrothermal treatment of rough rice prior to milling. The key biochemical transformation during steaming is:

Options:

  • (A) Complete gelatinization of starch granules in the endosperm and cementing of internal micro-fissures
  • (B) Fermentation of bran
  • (C) Destruction of protein
  • (D) Removal of husk by chemical dissolution

Answer Key:

A

Step-by-Step Solution & Explanation

Starch gelatinization heals cracks, seals fissures, and diffuses water-soluble B-vitamins (thiamine) from the aleurone layer into the endosperm.
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