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148 results about "Cellulose binding" patented technology

Interacting selectively and non-covalently with cellulose. [GOC:mah]

Polishing pad for use in chemical-mechanical planarization of semiconductor wafers and method of making same

A polishing pad for use in chemical mechanical polishing of substrates that being made of a porous structure comprising a matrix consisting of fibers, such as cotton linter cellulose bound with a thermoset resin, such as phenolic resin. The polishing pad surface has voids in which polishing slurry flows during chemical mechanical polishing of substrates, and in which debris formed during the chemical-mechanical polishing of substrates is temporarily stored for subsequent rinsing away. The polishing surface of the pad is ground to form asperities that aid in slurry transport and polishing, as well as opening the porous structure of the pad. The porous pad contains nanometer-sized filler-particles that reinforce the structure, imparting an increased resistance to wear as compared to prior-art pads. Also disclosed is a method of making the polishing pad.
Owner:RAYBESTOS POWERTRAIN

Process of expressing and isolating recombinant proteins and recombinant protein products from plants, plant derived tissues or cultured plant cells

A process of expressing a recombinant protein in a plant and of isolating the recombinant protein from the plant, the process is effected by (a) providing a plant, a plant derived tissue or cultured plant cells expressing a fusion protein including the recombinant protein and a cellulose binding peptide being fused thereto, the fusion protein being compartmentalized within cells of the plant, plant derived tissue or cultured plant cells, so as to be sequestered from cell walls of the cells of the plant, plant derived tissue or cultured plant cells; (b) homogenizing the plant, plant derived tissue or cultured plant cells, so as to bring into contact the fusion protein with a cellulosic matter of the plant, plant derived tissue or cultured plant cells, to thereby effect affinity binding of the fusion protein via the cellulose binding peptide to the cellulosic matter, thereby obtaining a fusion protein cellulosic matter complex; and (c) isolating the fusion protein cellulosic matter complex.
Owner:YISSUM RES DEV CO OF THE HEBREWUNIVERSITY OF JERUSALEM LTD

Isolated polypeptide having arabinofuranosidase activity

Described herein are novel gene sequences isolated from Trichoderma reesei. Two genes encoding proteins comprising a cellulose binding domain, one encoding an arabionfuranosidase and one encoding an acetylxylanesterase are described. The sequences, CIP1 and CIP2, contain a cellulose binding domain. These proteins are especially useful in the textile and detergent industry and in pulp and paper industry.cip1 cDNA sequence (SEQ ID NO: 1)GACTAGTTCA TAATACAGTA GTTGAGTTCA TAGCAACTTC50TGAACAAATT ATCTGCGCAA ACATGGTTCG CCGGACTGCT100CTGCTGGCCCTTGGGGCTCT CTCAACGCTC TCTATGGCCC AAATCTCAGA150CGACTTCGAGTCGGGCTGGG ATCAGACTAA ATGGCCCATT TCGGCACCAG200ACTGTAACCAGGGCGGCACC GTCAGCCTCG ACACCACAGT AGCCCACAGC250GGCAGCAACTCCATGAAGGT CGTTGGTGGC CCCAATGGCT ACTGTGGACA300CATCTTCTTCGGCACTACCC AGGTGCCAAC TGGGGATGTA TATGTCAGAG350CTTGGATTCGGCTTCAGACT GCTCTCGGCA GCAACCACGT CACATTCATC400ATCATGCCAGACACCGCTCA GGGAGGGAAG CACCTCCGAA TTGGTGGCCA450AAGCCAAGTTCTCGACTACA ACCGCGAGTC CGACGATGCC ACTCTTCCGG500ACCTGTCTCCCAACGGCATT GCCTCCACCG TCACTCTGCC TACCGGCGCG550TTCCAGTGCTTCGAGTACCA CCTGGGCACT GACGGAACCA TCGAGACGTG600GCTCAACGGCAGCCTCATCC CGGGCATGAC CGTGGGCCCT GGCGTCGACA650ATCCAAACGACGCTGGCTGG ACGAGGGCCA GCTATATTCC GGAGATCACC700GGTGTCAACTTTGGCTGGGA GGCCTACAGC GGAGACGTCA ACACCGTCTG750GTTCGACGACATCTCGATTG CGTCGACCCG CGTGGGATGC GGCCCCGGCA800GCCCCGGCGGTCCTGGAAGC TCGACGACTG GGCGTAGCAG CACCTCGGGC850CCGACGAGCACTTCGAGGCC AAGCACCACC ATTCCGCCAC CGACTTCCAG900GACAACGACCGCCACGGGTC CGACTCAGAC ACACTATGGC CAGTGCGGAG1000GGATTGGTTACAGCGGGCCT ACGGTCTGCG CGAGCGGCAC GACCTGCCAG1050GTCCTGAACCCATACTACTC CCAGTGCTTA TAAGGGGATG AGCATGGAGT1100GAAGTGGAGA GAGTTGAAGT GGCATTGCGC TCGGCTGGGT1150CAGCAGCTAT GAATACTCTA TGTGATGCTC ATTGGCGTGT1200AAAAAAAAAA AAAAAAAAAA AAAAAAAAAA AAAAAAAAAA1250AAAAAAAAAG GGGGCGGCCG C1271
Owner:DANISCO US INC

Method for pretreating cotton fabrics by adopting glucoamylase/glucose oxidase, pectinase and CBD (cellulose-binding domain)-lignin peroxidase

The invention provides a method for pretreating cotton fabrics by adopting glucoamylase/glucose oxidase, pectinase and CBD (cellulose-binding domain)-lignin peroxidase, belonging to the technical field of cotton fabric dyeing and finishing pretreatment. The method is characterized in that the cotton fabrics are firstly treated in mixed enzyme solution containing the glucoamylase and the glucose oxidase and the glucoamylase catalyzes the starch size on the fabrics to be decomposed into glucose so as to eliminate the size; the glucose oxidase catalyzes the glucose and oxygen to act to generate hydrogen peroxide; the generated hydrogen peroxide not only plays a role of bleaching but also can damage the hydrophobic surface structure of the cotton to expose the lower pectic substances; then the cotton fabrics are treated in alkaline pectinase solution to remove the pectic substances through decomposition; and finally the cotton fabrics are treated in CBD-lignin peroxidase solution to finally remove the cotton seed hulls through decomposing the lignin in the cotton seed hulls. The method provided by the invention can replace the traditional chemical treatment method to realize full bio-enzyme pretreatment of the cotton fabrics, and at the same time the traditional hydrogen peroxide can be no longer adopted for bleaching.
Owner:JIANGNAN UNIV +1

Enzyme fusion proteins and their use

Cellulase fusion proteins comprising an endoglucanase core region and a heterologous cellulose binding domain are described. The fusion proteins may be produced by recombinant techniques using appropriate polynucleotides, expressing vectors and host cells. The fusion proteins and enzyme preparations thereof are useful in treating cellulosic material, such as textile material, and they are particularly useful in biostoning denim or in biofinishing fabrics and garments. In addition the fusion proteins may be used in pulp and paper industry, oil extraction from plants, detergent compositions, or for improving the quality of animal feed.
Owner:AB ENZYMES OY

Method for preparing heat-resistant cutinase-CBD and application thereof in cotton fiber refining

The invention discloses a method for preparing heat-resistant cutinase-CBD and application thereof to cotton fiber refining, which belong to the field of enzyme gene engineering. The method comprises the steps: taking pET20b-Tfu_0883 plasmid DNA and total DNA of thermophilic ascomycete WSH03-11 as a template, performing PCRs of designed primers respectively to obtain an encoding cutinase Tfu_0883 gene and a CBD gene in cellulose Tfu_1074, and then obtaining a fusion gene of encoding cutinase-cellulose-binding domain (CBD) (shortened as the heat-resistant cutinase-CBD) through overlap PCR; and taking pET20b(+) as an expression vector and E.coli BL21(DE3) as an expression host to realize the high level expression of a heat-resistant cutinase-CBD gene. The fusion enzyme has the activity of cutinase, the optimum temperature is 50 DEG C, the optimum pH value is 8, and the activity of the enzyme can still reach over 50 percent when heat preservation for 50h at a temperature of 50 DEG C. The cutinase-CBD has an absorption rate of 50 percent on cotton fiber, reaches reaction balance after 6h, and generates 180mu mol of fatty acid. The fusion enzyme is suitable for cotton fiber refining.
Owner:JIANGNAN UNIV

Novel fusion protein of mispairing binding protein and cellulose binding domain 3 and method thereof for removing errors in DNA (Desoxvribose Nucleic Acid) synthesis at high flux

The invention discloses a novel fusion protein of a mispairing binding protein and a cellulose binding domain 3, establishes a method for rapidly immobilizing the fusion protein on cellulose, and a method for constructing a mispairing binding protein cellulose chromatographic column. The invention further establishes a method for removing errors in oligonucleotides synthesized by a chip at high flux by using the mispairing binding protein cellulose chromatographic column. Meanwhile, the method disclosed by the invention is capable of correcting the errors in the DNA synthesis at high flux.
Owner:UNIV OF SCI & TECH OF CHINA

Method for scouring cotton fabric by applying cutinase and CBD (cellulose-binding domain)-alkaline pectinase

The invention provides a method for scouring a cotton fabric by applying cutinase and CBD (cellulose-binding domain)-alkaline pectinase, belonging to the technical field of treatment of cotton fabrics before dyeing and finishing. The method comprises the following steps of: treating a cotton knitted fabric, cotton yarns, or a cotton woven fabric from which size is removed by amylase or sodium hydroxide firstly, in a mixed enzyme solution formed by cutinase and CBD-alkaline pectinase; or respectively treating in the cutinase solution and the CBD-pectinase solution, wherein the hydrophobic surface structure of cotton fibers is destructed by the cutinase, the higher fatty acid ester substances are removed from the surface waxy layers of the cotton fibers, so that the wettability of the cotton fabric is improved, the pectic substances on the cotton fibers are exposed, and then the CBD-pectinase is absorbed on the surface cellulose of the cotton fibers to decompose the pectic substances on the cotton fibers. By the method provided by the invention, on the one hand, the traditional chemical treatment method can be substituted for scouring the cotton fabric, and on the other hand, because the cutinase and the CBD-alkaline pectinase are adopted, the wettability of the cotton fibers and the pectin removal rate are improved.
Owner:JIANGNAN UNIV +1

Application of family 3 cellulose binding domain serving as affinity tag for expression and purification of recombinant protein in eukaryote

The invention belongs to the field of recombinant protein expression and purification. The invention provides a method for expressing and purifying recombinant protein in a eukaryote by using a family 3 cellulose binding domain CBM3 serving as an affinity tag for recombinant protein expression. The method comprises the following steps of: (1) constructing a nucleotide sequence of coded CBM3 optimized by a eukaryote codon; (2) constructing a recombinant construct of the nucleotide sequence of the coded CBM3 optimized by the eukaryote codon in the step (1) and a nucleotide sequence of coded target protein; (3) cloning the recombinant construct constructed in the step (2) to an expression vector suitable to be expressed in the eukaryote; (4) expressing the recombinant expression vector obtained in the step (3) in the eukaryote; and (5) purifying the expressed recombinant protein by using the CBM3 as the affinity tag and using cellulose. The invention also provides a method for expressingand purifying the recombinant protein in the eukaryote by using the CBM3 serving as the affinity tag for the recombinant protein expression and internal protein, wherein the method comprises a step of constructing a target protein-internal protein-CBM3 recombinant construct so as to cut out and purify the recombinant protein of fusion expression without additional amino acid.
Owner:UNIV OF SCI & TECH OF CHINA

Preparation method of flame-retardant Lyocell fiber

The invention relates to a preparation method of flame-retardant Lyocell fiber. The preparation method is characterized in that flame retardants of tris-(2,3-dibromopropyl)phosphate and cotton pulp are dissolved in an N-methylmorpholine-N-oxide water solution; a spinning solution is prepared; the spinning solution enters a spinning system; sprayed silk threads are vertically stretched in air and enter a coagulating bath tank to be coagulated into fiber; the fiber is subjected to the processes such as alcohol washing, blanching, water washing, oiling and drying; the flame-retardant Lyocell fiber is obtained. The dry breaking strength intensity of the prepared Lyocell fiber is 43 to 45 cN/tex, and the dry breaking elongation is 13.5 to 15 percent; the wet breaking strength of the Lyocell fiber is 31.5 to 33 cN/tex, and the wet breaking elongation of the fiber is 15 to 17 percent; the major strong performance approaches to that of commercially-available Lyocell fiber. The limit oxygen index of the prepared flame-retardant Lyocell fiber reaches 33 percent or higher; after water washing for 20 times, the flame-retardant effect is still not obviously weakened; the result shows that the combining force of the flame retardant and cellulose is high.
Owner:WUHAN TEXTILE UNIV

Titanium dioxide for decorative paper and preparation method

The invention discloses titanium dioxide for decorative paper and a preparation method. The titanium dioxide comprises a titanium dioxide base material and a coating layer located on the surface of the titanium dioxide base material, and the coating layer sequentially comprises a titanium phosphate and aluminum phosphate mixed coating layer and a magnesium oxide and aluminum oxide mixed coating layer from the inside out. According to the titanium dioxide for decorative paper provided by the invention, a titanium phosphate and aluminum phosphate mixed film layer is coated on the surface of titanium dioxide, the hue of the titanium dioxide can be improved, the coating process of the titanium dioxide can be reduced, and the cost is reduced, and then an aluminum oxide and magnesium oxide mixedfilm layer is coated to improve the isoelectric point of the titanium dioxide, so that the titanium dioxide is positively charged in a papermaking system and can be better combined with negatively charged cellulose, the retention rate of the titanium dioxide in paper is improved, and then the covering power of the titanium dioxide is further improved. The invention further provides a preparationmethod of the titanium dioxide by taking the technical scheme as a starting point.
Owner:HENAN BILLIONS NEW MATERIAL CO LTD
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