7 results about "Xylose" patented technology

The invention discloses an achromobacter xylosoxidans bacterial strain and application thereof for degrading o-aminobenzoic acid. The bacterial strain is (Achromobacter xylosoxidans) N4, the preservation registration number thereof is CGMCC No. 3632. The (Achromobacter xylosoxidans) N4 CGMCC No. 3632 can rapidly and efficiently degrade o-aminobenzoic acid and can be applied to biological treatment on indigo printing and dyeing waste water.

The invention discloses a method for refining a high-temperature wood hydrolyzate. The method comprises the following steps: performing centrifugation on a raw material hydrolyzate; removing the water-soluble macromolecular lignin by a flocculation method; obtaining the hydrolyzate after flocculation, adsorbing the water-soluble small molecule lignin with the resin, and obtaining a purified xylosesolution; removing residual lignin of the purified xylose solution by a filtering device to obtain refined xylose liquid and prepare xylose; and eluting the resin-adsorbed lignin with an eluting solvent, and recovering the eluting solvent and lignin. The recovered ethanol of the invention can be recycled and reused; an integrated vortex reactor is also used to effectively improve and increase theflocculation effect, and the ion exchange resin as an adsorbent has a good adsorption effect on the charged lignin. The hydrolyzate improves the membrane separation effect of a filter membrane and maintains a large flux of the membrane.

The invention discloses a method for preparing furfural by inorganic salt-adopted composite catalysis of xylose in a homogeneous system. The method comprises that xylose and a composite inorganic salt are added into a homogeneous reaction system and undergo a reaction at a temperature of 110-160 DEG C for 10-600min, wherein the composite inorganic salt comprises an inorganic salt A selected from SnCl4, AlCl3 and CrCl3 and an inorganic salt B selected from LiCl, KCl and NaCl, the homogeneous reaction system is a mixed solution of water and dimethyl sulfoxide and a volume ratio of water to dimethyl sulfoxide is 0.5-1.5: 1, the reaction solution is naturally cooled and then is subjected to organic solvent-based extraction, and the extract is washed and distilled so that furfural is obtained. The homogeneous catalysis system used by the method has the characteristics of high efficiency, environmental friendliness and cyclic utilization. The composite inorganic salt has the characteristics of good selectivity and high catalytic efficiency. The method has the characteristics of mild technical conditions, operation easiness, high efficiency and good selectivity, is free of inorganic acid used in the reaction process and prevents corrosion on equipment.

The invention relates to sugar-free tomato sparkling wine and a preparation method thereof. The sugar-free tomato sparkling wine is prepared by the following operations: conducting primary fermentation on sterilized tomato pulp so as to obtain fermented tomato original wine; then, adding xylose and honey to the fermented tomato original wine, conducting stirring until the xylose and the honey are completely dissolved; conducting filtering by virtue of a microporous filter membrane which is 0.22-0.45 [mu]m; and conducting secondary fermentation, so that the sugar-free tomato sparkling wine is obtained. According to the sugar-free tomato sparkling wine and the preparation method thereof provided by the invention, the variety of tomato products is enriched, a new way for deep processing of tomato foods is created, the comprehensive utilization value of tomatoes is improved, and the development of such industry chains as tomato planting, processing and the like is promoted. The sugar-free tomato sparkling wine is low in calorie, low in alcoholic strength, proper in sweetness and sourness, harmonious in fruit fragrance and honey fragrance, fresh and delicate in taste, good in stability and long in shelf life; the sugar-free tomato sparkling wine is applicable to people of all ages; and the sugar-free tomato sparkling wine is also an excellent drink for people with 'three high' (high blood pressure, high blood sugar and high triglyceride).

The present invention is a glucose composition characterized by containing, as equivalents in an aqueous solution of the 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 the 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.

The invention relates to the technical field of xylose, and discloses a xylose production process which comprises the following steps: preservative treatment: putting collected corncobs into a stirrer for stirring and cleaning, adding an acidic preservative in the cleaning process, stirring for 1-2 hours, then taking out the corncobs, draining the corncobs by adopting a screen, and drying the corncobs by adopting a drying machine; and putting the drained corncobs into drying equipment, drying the corncobs for 30-50 minutes, and packaging the corncobs with plastic bags after drying. According to the production process of the xylose, the corncobs are subjected to preservative treatment, the cleaned corncobs are dried, the dried corncobs are packaged and stored in a ventilated plant, and the stored corncobs are subjected to sampling inspection regularly, so that the corncobs are prevented from being rotten, and the problem that the xylose is damaged due to multiple working procedures and long period in the processing process of the xylose is solved. And the rotten corncobs cannot be used for producing xylose, so that the waste of raw materials is caused.