TECHNOLOGY FOCUS - BIOTECHNOLOGY - Preferred Composition: The amount of enzyme stabilizer with respect to lignocellulosic biomass is 0.5-20 %mass. Preferred Method: The method (M2) further involves (a) performing delignification of lignocellulosic biomass by alkaline pulping method, (b) culturing microorganism that produces saccharogenic amylase using delignified lignocellulosic biomass as carbon source, (c) obtaining enzyme suitable for saccharification of lignocellulosic biomass, (d) adding lignocellulosic biomass to culture medium containing the obtained saccharogenic amylase, microorganism which ferments ethanol, and the above-mentioned stabilizer, and (e) fermenting the above-mentioned culture medium in presence of enzyme stabilizer. The enzyme stabilizer is recovered after alkaline pulping process as raw material. The microorganism that produces the above-cited enzyme is Trichoderma, Aspergillus, Humicola, Irpex, or Acremonium.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Component: The hydrophilic compound is of formula: R1-CmH2m-(CnH2nO)p-CqH2q-R2 (I). The hydrophilic compound is glycidyl ether derivative or glycol derivative, preferably lauryl alcohol-polyethylene oxide-glycidyl ether. The lignin is kraft lignin, acetic acid lignin, organosolv lignin, blasting lignin, sulfuric acid lignin, or alkali lignin.R1,R2=H, OH, methyl, glycidyl, or glycidyl ether;m=0-20;n=2-4;p=1-30;andq=0-20.The carbon atom of alkylene unit is optionally substituted with one or more substituents chosen from alkyl, -OH, -NH2, glycidyl, and glycidyl ether group. EXAMPLE - Aqueous solution (6 l) containing sodium hydroxide (260 g) was added to 1,4-dihydro-9,10-dihydroxyanthracene disodium salt and the mixture was heated with Japanese cedar at 20 degrees C for 90 minutes. The processed Japanese cedar was washed using water, and dehydrated until moisture content of cedar becomes 70% and aqueous alkali solution was obtained as black liquor. Hydrochloric acid was added to reduce pH of the obtained black liquor to 2 and lignin was deposited as precipitate. The obtained precipitate was centrifuged and dried to powder form of lignin. The obtained lignin (10 g) was dissolved in sodium hydroxide (1N) (100 ml) to obtain mixture. Lauryl alcohol polyethylene oxide glycidyl ether was added to the obtained mixture and heated at 70 degrees C. The heated mixture was stirred for 3 hours, and then acetic acid having pH 4 was added to the mixture to terminate the reaction and the end product was obtained. The end product was purified in ultra filtration membrane. The obtained filtrate was lyophilized and lignin derivative (46 g) was obtained.