During anaerobic digestion of organic waste, such as in the producing biogas, Which one of the following is left undegraded ?A. HemicelluloseB. CelluloseC. LipidsD. Lignin

During anaerobic digestion of organic waste, such as in the producing

1.	During anaerobic digestion of organic waste, such as in the producing biogas, Which one of the following is left undegraded ?A. HemicelluloseB. CelluloseC. LipidsD. Lignin
Answer» Correct Answer - D During biogas formation, digestion of cellulose is slow (Rate-limiting) and most of the lignin is not decomposed . After cellulose lignin is the most abundant plant polymer. It forms 20 to 30% of the wood of the tree. Lignin is a complex polymeric molecules , made up of phenyl propanoid units. Cellulose is a large chained polymer of glucose molecules which are linked with each other by glycosidic bonds. Hemicellulose are branched polymers of glucose, xylose, galactose, mannose and arabinose.

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During anaerobic digestion of organic waste, such as in the producing biogas, Which one of the following is left undegraded ?A. HemicelluloseB. CelluloseC. LipidsD. Lignin

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