Using the abv percentage, I'd figure out the cost of three ounces of straight alcohol. Then, based on the price per ounce of each type of booze, I'd figure out the cheapest ways to get the most alcohol. So the formula is... See, kids -- the stuff you're learning in math class does come up in real life.
Lignin. Definition. noun. An organic substance that acts as a binder for the cellulose fibers in certain plants adding strength and stiffness to the cell walls. Supplement. Lignin is an organic substance belonging to a group of aromatic alcohols. It is naturally produced by certain plants (especially woody plants and certain algal species).
Lignin is one of the most slowly decomposing components of dead vegetation, contributing a major fraction of the material that becomes humus. The resulting soil humus, in general, holds nutrients onto its surface, and hence increases its cation exchange capacity and moisture retention, hence it increases the productivity of soil.