Abstract:
This aquatic organism growth promoter has an active component comprising a low molecular-weight lignin having a molecular weight peak in the range of molecular weights 4,000-9,500 at a wavelength of 254 nm in GPC spectral analysis using a UV detector, and/or a high molecular-weight lignin having a molecular weight peak in the range of molecular weights 10,000-40,000 at a wavelength of 254 nm.
Abstract:
The present invention is a glucose composition characterized by containing, as equivalents in an aqueous solution of said composition having a glucose concentration of 100 g/L, 0-25 g/L of xylose, 0.1-10 g/L of acetic acid, 0.15-2.0 g/L of coumaric acid, and 0.007-0.28 g/L of ferulic acid. By using this glucose composition as a raw material in a method for producing a chemical product by microbial fermentation, the yield of the chemical product can be raised.
Abstract:
The method of preparing a sugar solution according to the present invention is a method of preparing a sugar solution from cellulose-containing biomass, the method including step (1): a step for obtaining an endoxylanase hydrolysate by hydrolyzing the cellulose-containing biomass using endoxylanase derived from microorganisms of the Acremonium genus or the Aspergillus genus, step (2): a step for separating the endoxylanase hydrolysate into an endoxylanase hydrolysate solid and an endoxylanase hydrolysate liquid through solid-liquid separation, step (3): a step for obtaining a cellulase hydrolysate by hydrolyzing the endoxylanase hydrolysate solid using cellulase derived from a filamentous fungus, and step (4): a step for filtering the cellulase hydrolysate through an ultrafiltration membrane to collect a sugar solution from the filtrate side and collect an enzyme component from the non-filtrate side.