Question
The major constituent of cotton fibre is _________.
This question was previously asked in
CUET PG 2026 Agri-Business Management Question Paper (25-Mar-2026) (Shift 2)
The correct answer is
cellulose
Cotton Fiber Major Constituent
Cotton fiber is primarily composed of a natural polymer derived from plants.
Constituent Identification
The major constituent of cotton fiber is cellulose. This polysaccharide forms the structural backbone of the fiber.
Breakdown of Cotton Fiber
Analysis shows that cotton fiber consists of approximately:
| Component | Percentage (approx.) |
| Cellulose | > 90% |
| Other components (hemicellulose, pectins, proteins, waxes) | < 10% |
Substances like lignin are found in woody plant tissues and are not significant in cotton fiber.
Cellulose Importance
The high concentration of cellulose dictates the characteristic properties of cotton, such as its strength and absorbency.
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