Bioresources and science

1. Why do we have so many pretreatment methods for the bioconversion of lignocellulosic biomass to ethanol? (150 words)

2. If one of your products during the bioconversion was lignin and you could find a very high value for this products (1000$/kg), would you use organosolv pulping or steam explosion as a pretreatment method? Please explain your answer. (150 words)

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