NOVELTY - Xylose is produced from bagasse by removing slag from sugar cane bagasse, fermenting sugar bagasse, catalytically hydrolyzing, centrifuging, washing recovered residual sugar, combining washing solution and cetrifugate to obtain orange-yellow transparent sugar solution, decoloring, removing impurities by physical adsorption, passing through ion exchange resin columns, vacuumizing purified sugar, heating, efficiently evaporating, cooling, collecting condensate, decoloring, removing impurities by physical adsorption, passing through ion exchange resin columns, concentrating, and crystallizing.    USE - Production of xylose from bagasse for medical products.    ADVANTAGE - Process is low cost, faster, simple, easy to operate, environment-friendly, increases utilization rate of bagasse, yields high purity product, and has less device investment.    DETAILED DESCRIPTION - Xylose is produced from bagasse by removing 20% slag from sugar cane bagasse, stacking for greater than or equal to 3 months to obtain brown fully ferment sugar bagasse with less than or equal to 15% moisture, catalytically hydrolyzing with sulfuric acid, centrifuging, collecting cetrifugate, washing recovered residual sugar, combining washing solution and cetrifugate to obtain orange-yellow transparent sugar solution, intermittently decoloring using zinc powder and activated carbon, removing pigment, colloids, and impurities by physical adsorption to achieve preliminary purification, passing through 1st cation exchange resin column, 1st anion exchange resin column, and 2nd cation exchange resin column, vacuumizing purified sugar, heating at constant temperature, rotating container at constant speed, efficiently evaporating, cooling in high efficiency glass solvent vapor condenser, collecting condensate, intermittently decoloring using zinc powder and activated carbon, removing pigment, colloids, and impurities by physical adsorption, passing through 2nd anion exchange resin column, 3rd cation exchange resin column, and 3rd anion exchange resin column, subjecting to 2-stage concentration in which solution is concentrated from 12-16% to 45-60% on 1st stage and from 45-60% to 81-83% on 2nd stage, subjecting to vertical vacuum crystallizer, separating xylose crystals from mother liquor using drum or sieve basket, and hot air drying. INDEPENDENT CLAIMS are included for:    (1) production of xylitol is produced by placing purified water and obtained xylose in water bath at constant temperature of 65 degrees C, stirring at 100 r/minute to obtain solution with 35-50% refractive index, decolorizing by adding 1 wt.% zinc and activated carbon powder and 80 degrees C while stirring at 200 r/minute for 30 minutes, microfiltering at 0.22 mu m sintered glass filter using oil-free diaphragm vacuum pump, transferring filtrate to hydrogenation reactor, adding catalyst with weight ratio filtrate:catalyst of 9:1, stirring at 1200-1500 r/minute, reacting at 124 degrees C, discharging catalyst precipitate is transferred 1st followed by supernatant, washing catalyst precipitate with purified water to obtain refractive index of 1%, mixing water washings, adding 0.5 wt.% zinc and activated carbon to xylitol solution, decolorizing at 75 degrees C while stirring at 150 r/minute for 35 minutes to obtain 95% light transmittance, passing through styrene macroporous strong cation-exchange resin column to remove calcium, magnesium, and dissolved catalyst, passing through styrene macroporous weak anion-exchange resin column at flow rate of 2 BV, evaporating to 55-60% concentration, evaporating from 55-60% to 81-83% concentration in rotary evaporator at - 0.085 MPa and 80 degrees C with 25 r/minute speed to obtain material with 83% refractive index measured by Abbe refractometer, subjecting to vertical vacuum crystallizer at 15 r/minute rotation and 2-3 degrees C/hour cooling rate, adding seed crystal for 6-8 hours, cooling at 1 degrees C/hour in which total of cooling time is 40 hours, adjusting rotational speed to moderate, cooling to 35 degrees C, stopping water circulation system and stirring, discharging to mold, allowing crystallization to end, determining discharge indexes to obtain white or light yellow viscous crystal suspension paste, centrifuging, filtering through cloth, centrifuging filtrate, adding absolute ethanol every 10 minutes, centrifuging to obtain white xylose crystals, electric blast drying at less than or equal to 50 degrees C and relative humidity of less than or equal to 65% for 30 minutes to obtain loosely structured crystalline particles with purity of greater than or equal to 99.5% and moisture of less than or equal to 0.5%, mixing recovered xylitol mother liquor with water to obtain 25-30% refractive index, adding 1% activated carbon powder, heat preserving at 75 degrees C, decolorizing for 30 minutes, filtering in Buchner funnel to obtain decolored solution, passing through weak anion exchange column and strong anion exchange column, rotary evaporating at - 0.085 MPa and 80 degrees C to obtain 83% concentrated xylitol solution, subjecting to vertical vacuum crystallizer at 15 r/minute rotation and 2-3 degrees C/hour cooling rate, adding seed crystal, continuously cooling to 40 degrees C, centrifuging to obtain xylitol, secondary xylitol mother liquor, and xylitol crystals, oven drying xylitol at less than or equal to 50 degrees C to obtain uniform crystalline xylitol powder, diluting, bleaching, ion exchanging, and concentrating to recover remaining crystalline xylitol; and    (2) production of L-arabinose which involves stirring xylose mother liquor at 100 r/minute, adding 0.5 mass% dry yeast powder at 30 degrees C and natural pH and oxygenation, stirring at 80 r/minute, fermenting for 3-6 hours, filtering fermentation solution through Buchner funnel, collecting filtrate, analyzing glucose content using biosensor device or HPLC, adding 1 wt.% activated carbon powder, decolorizing at 75 degrees C, heat preserving for 30 minutes, filtering through Buchner funnel to obtain decolorized xylose, passing through weak anion exchange resin column, strong cation exchange resin column, and strong anion exchange resin column, rotary evaporating at - 0.089 MPa and 80 degrees C while stirring at 20 r/minute to obtain 45% refractive index, pumping to continuous moving bed chromatography with water eluent and PCR-calcium ion release agent, separating xylose and L-arabinose, filtering through 0.22 mu m micromembrane, evaporating to 50% refractive index, continuously evaporating to 84% refractive index, subjecting to vertical vacuum crystallizer at 2-3 degrees C/hour cooling rate, precipitating L-arabinose, centrifuging, and drying to obtain white loosely structured crystalline product.    DESCRIPTION OF DRAWING(S) - The drawing shows a process flow chart of production of xylose from bagasse. (Drawing includes non-English language text).