1.What are the following compounds will consume alkaline during kraft pulping
a) lignin, b) hemicellulose, c) extractives, d) soluble carbohydrates
2. Which plant cell wall most likely has the highest average fiber length:
a) alder; b) bamboo; c) Douglas fir; d) poplar
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1.d) soluble carbohydrates
2. b) bamboo
I hope this is right answer
2. b) bamboo
I hope this is right answer
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The correct answers are given below.
Answer 1. Option b - Hemicelluloses. During The Kraft pulping and cooking processes, the poly saccharinic organic compounds are hydrolysed and they degrade to form saccharine acids. The neutralization of these organic acids is done using another portion of alkaline. Thus, the hemicelluloses are dissolved into the pulping liquor.
Ans 2. Option B - Bamboo. The cell walls of the bamboo fibres have axially oriented cellulose fibrils. The hardness and the stiffness of the central portion of the cell wall is due to the differential cell wall thickening which in turn affects the tissue density.
Answer 1. Option b - Hemicelluloses. During The Kraft pulping and cooking processes, the poly saccharinic organic compounds are hydrolysed and they degrade to form saccharine acids. The neutralization of these organic acids is done using another portion of alkaline. Thus, the hemicelluloses are dissolved into the pulping liquor.
Ans 2. Option B - Bamboo. The cell walls of the bamboo fibres have axially oriented cellulose fibrils. The hardness and the stiffness of the central portion of the cell wall is due to the differential cell wall thickening which in turn affects the tissue density.
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