NOVELTY - Preparing-1 a concentrated hydrolyzate from sulfite- or bisulfite-pretreated lignocellulosic biomass, comprises: providing and enzymatically hydrolyzing sulfite- or bisulfite-pretreated lignocellulosic biomass solids to produce a hydrolyzate (comprising at least one sugar and residual solids); separating residual solids to form a separated hydrolyzate; ultra-filtering the separated hydrolyzate using a filter with molecular weight cut-off (MWCO) size of 3-20 kDa to form an ultra-filtered hydrolyzate; and concentrating to obtain a concentrated hydrolyzate with sugar titer of at least 25 wt.%.    USE - The process is useful for producing a solid lignocellulosic hydrolyzate, which is useful for producing at least one biofuel, biochemical, alcohol, organic acid, amino acid, diol product, protein product, gaseous product, lipid compound (claimed) or bioproduct (e.g. amino acids, organic acids, pharmaceuticals and specialty chemicals), where the biofuel is e.g. ethanol, propanol and butanol, the alcohol compounds are e.g. ethanol, butanol and isobutanol, the organic acids are e.g. acetic acid, lactic acid and citric acid, the amino acids are e.g. lysine, methionine, alanine and glutamic acid, the diol product is e.g. propanediol and butanediol, the protein product is e.g. enzymes and polypeptides, the gaseous product is e.g. biogas, methane, hydrogen and carbon dioxide.    ADVANTAGE - The process provides solid lignocellulosic hydrolyzate, with higher sugar composition and improved bulk handling properties, including faster rate of dissolution in comparison with the sugar solutions or solid sugars currently used for production of biofuels, biochemicals and other bioproducts.    DETAILED DESCRIPTION - INDEPENDENT CLAIMS are also included for:    (1) producing-2 a concentrated hydrolyzate from lignocellulosic biomass, comprising providing a lignocellulosic biomass, contacting the lignocellulosic biomass with first dose enzymes, enzymatically hydrolyzing the lignocellulosic biomass to produce a first hydrolyzate , where the first hydrolyzate comprises at least one sugar, residual solid and the enzyme from the first dose, adding additional lignocellulosic biomass to the first hydrolyzate to produce a lignocellulosic mixture, where the lignocellulosic mixture comprises the sugar, the residual solid, the enzyme from the first dose and the additional lignocellulosic biomass, separating a solid fraction and a liquid fraction from the lignocellulosic mixture, where the solid fraction comprises the residual solid, the enzymes from the first dose, and the additional lignocellulosic biomass, and where the liquid fraction comprises the sugar, contacting the solid fraction with a second dose of enzymes, enzymatically hydrolyzing the solid fraction to produce a second hydrolyzate, where the second hydrolyzate comprises at least one additional sugar, additional residual solid, the enzyme from the first dose and the enzyme from the second dose, separating a solid fraction and a liquid fraction from the second hydrolyzate, where the solid fraction comprises the additional residual solids, the enzymes from the first dose and the enzymes from the second dose and where the liquid fraction comprises at least one of additional sugar, combining the liquid fraction separated from the lignocellulosic mixture in step of separating solid and liquid fraction and the liquid fraction separated from the second hydrolyzate to form a combined hydrolyzate, ultra-filtering the combined hydrolyzate using the filter to form an ultra-filtered hydrolyzate and concentrating the ultra-filtered hydrolyzate to obtain a concentrated hydrolyzate, which has a sugar titer of at least 25 wt.%;    (2) a solid lignocellulosic hydrolyzate comprising monomeric glucose, monomeric xylose, monomeric mannose, monomeric arabinose and monomeric galactose, where the glucose, xylose, mannose, arabinose and galactose are at least 50 wt.% of the total weight of the solid lignocellulosic hydrolyzate;    (3) preparing-3 a solid lignocellulosic hydrolyzate from a lignocellulosic biomass, comprising providing the lignocellulosic biomass, pretreating the lignocellulosic biomass to produce a pretreatment liquor and a pretreated biomass solid, separating the pretreated biomass solid from the pretreatment liquor, hydrolyzing the pretreated biomass solid to produce a lignocellulosic hydrolyzate and residual solids, separating the residual solids from the lignocellulosic hydrolyzate and concentrating, drying and/or crystallizing the lignocellulosic hydrolyzate to obtain a solid lignocellulosic hydrolyzate; and    (4) preparing-4 a solid lignocellulosic hydrolyzate from a lignocellulosic biomass, comprising providing the lignocellulosic biomass, pretreating the lignocellulosic biomass to produce a pretreatment liquor and a pretreated biomass solid, separating the pretreated liquor from the pretreatment biomass solid, filtering the pretreatment liquor and concentrating, drying and/or crystallizing the filtered pretreatment liquor to obtain the solid lignocellulosic hydrolyzate.