Approximate cellulose content in bamboo fibre: choose the closest typical percentage reported for lignocellulosic bamboo.

Introduction / Context:
Bamboo, like wood, is a lignocellulosic material comprising cellulose, hemicellulose, and lignin. Knowledge of cellulose content is important for pulp and paper, biocomposites, and chemical processing where cellulose provides strength and is the desired fraction for many applications.

Given Data / Assumptions:

• Bamboo cellulose is commonly reported in the rough range of about 40–60 percent depending on species, age, and processing.
• Hemicelluloses and lignin make up most of the remainder, along with extractives and ash.
• The question asks for an approximate, typical value among discrete choices.

Concept / Approach:
Mid-range values near 50 percent are widely cited for bamboo cellulose. Values as low as 10–20 percent are unrealistic for structural lignocellulosics; 85 percent would be closer to purified cellulose or certain highly processed fibres, not raw bamboo fibre content. Therefore, 50 percent is the best representative selection.

Step-by-Step Solution:
Eliminate choices that are far below typical lignocellulosic cellulose content (10, 20).Eliminate 85, which is characteristic of purified cellulose rather than native bamboo.Choose 50 as a representative midpoint of the common reported range.

Verification / Alternative check:
Materials data handbooks and pulp studies on bamboo consistently list cellulose near ~50 percent with variability by species.

Why Other Options Are Wrong:
10/20: too low for bamboo structure.85: too high for raw bamboo; would imply near-pure cellulose.65: possible in some processed fibres, but higher than typical for native bamboo fibre content.

Common Pitfalls:
Confusing processed cellulose fibres with native biomass composition.

Final Answer:
50