Enzymatic conversion of kelp biomass for biofuels and health beneficial products.

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To achieve an effective enzyme combination for enzymatic hydrolysis of laminarin and alginate in kelp, a glycoside hydrolase family 55 enzyme (SactELam55A) and two polysaccharide enzyme families (PLs), seven PL17 and two PL18 were successfully prepared using a recombinant enzyme production method. The reaction optima of temperature and pH of these enzymes were individually determined for combinatorial enzyme hydrolysis. Additionally, one reported PL7 enzyme was gene synthesized to produce monomer from alginate polymer in combination with PL17 and PL18 alginate depolymerizing enzymes.