摘要:
A process for producing 2,4′-dihydroxydiphenylsulfone which comprises separating 4,4′-dihydroxydiphenylsulfone by crystallization from a mixture containing 4,4′-dihydroxydiphenylsulfone, 2,4′-dihydroxydiphenylsulfone, phenolsulfonic acid and phenol which is obtained by dehydration of phenol and sulfuric acid or phenolsulfonic acid to obtain a mixture having a content of 2,4′-dihydroxydiphenylsulfone greater than the content of 4,4′-dihydroxydiphenylsulfone, crystallizing 2,4′-dihydroxydiphenylsulfone by adjusting the composition of the solvent of the obtained mixture so that the ratio of the amounts by weight of phenol to water is 10:90 to 90:10, and separating 2,4′-dihydroxydiphenylsulfone by filtration; and a process as described above in which the filtrate obtained by the filtration is used as the raw material for the hydration.
摘要:
A process for producing 2,4′-dihydroxydiphenylsulfone which comprises separating 4,4′-dihydroxydiphenylsulfone by crystallization from a mixture containing 4,4′-dihydroxydiphenylsulfone, 2,4′-dihydroxydiphenylsulfone, phenolsulfonic acid and phenol which is obtained by dehydration of phenol and sulfuric acid or phenolsulfonic acid to obtain a mixture having a content of 2,4′-dihydroxydiphenylsulfone greater than the content of 4,4′-dihydroxydiphenylsulfone, crystallizing 2,4′-dihydroxydiphenylsulfone by adjusting the composition of the solvent of the obtained mixture so that the ratio of the amounts by weight of phenol to water is 10:90 to 90:10, and separating 2,4′-dihydroxydiphenylsulfone by filtration; and a process as described above in which the filtrate obtained by the filtration is used as the raw material for the hydration.
摘要:
This invention relates to a novel microorganism that efficiently produces a dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,1-b]furan intermediate using sclareol as a substrate. As a result of concentrated studies, a plurality of novel microorganisms having properties of interest that are not classified as conventional microorganisms were isolated and identified. The novel microorganism of the present invention belongs to Ascomycetes and has the ability of producing a dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,1-b]furan intermediate using sclareol as a substrate. Such microorganism of Ascomycetes represents a new finding and it can be effective for producing dodecahydro-3a,6,6,9a-tetramethylnaphtho[2,1-b]furan and an intermediate thereof.
摘要:
It is intended to provide a process for conveniently producing phosphorylase at a high purity using a phosphorylase-producing microorganism. Namely, a process for producing phosphorylase characterized by culturing a phosphorylase-producing microorganism in a medium containing phosphoric acid or its salt at a concentration of 50 mM or above and collecting the phosphorylase thus produced in the medium.
摘要:
The invention relates to a mutant α-amylase obtained by making replacement or deletion of at least one of amino acid residues such as the 167th Gln, 169th Tyr and 178th Ala in the amino acid sequence set forth in SEQ ID NO:1 in an α-amylase having said amino acid sequence, or an α-amylase having a homology of at least 70% to said amino acid sequence, a gene encoding the mutant α-amylase, a vector, transformed cells, a process for producing a mutant α-amylase, comprising culturing the transformed cells, and a detergent composition comprising the mutant α-amylase.The mutant α-amylase of the invention has excellent properties of high resistance to chelating agents, high specific activity in an alkaline region and excellent stability to heat, and is hence useful for detergents for automatic dish washer, laundry detergents and the like.
摘要翻译:本发明涉及通过使SEQ ID NO:1所示的氨基酸序列中的至少一个氨基酸残基例如第167位Gln,第169位和第178位氨基酸置换成α位点而获得的突变型α-淀粉酶 具有所述氨基酸序列的淀粉酶或与所述氨基酸序列具有至少70%同源性的α-淀粉酶,编码突变型α-淀粉酶的基因,载体,转化细胞,用于产生突变型α-淀粉酶的方法, 包括培养转化细胞的淀粉酶和包含突变型α-淀粉酶的洗涤剂组合物。 本发明的突变型α-淀粉酶具有优异的抗螯合剂抗性,在碱性区域中具有高比活性和优异的耐热稳定性,因此可用于自动洗碗机,衣物洗涤剂等的洗涤剂。
摘要:
Liquefying alkaline amylases, each having residual activity not less than 70% when treated at pH 10 and 45° C. for 30 minutes in the presence of 1 to 100 mM of EDTA or EGTA, are described. Also described are detergents comprising these amylases. In comparison with conventional amylases for detergents, the liquefying alkaline amylases of this invention have a high chelating-agent resisting performance.
摘要:
Described are liquefying alkaline amylases each having residual activity not less than 70% when treated at pH 10 and 45° C. for 30 minutes in the presence of 1 to 100 mM of EDTA or EGTA; and a detergent comprising the same. Compared with the conventional amylases for a detergent, they have high chelating-agent resisting performance.
摘要:
A liquid crystal display device includes a liquid crystal display panel PNL including a pair of mutually opposed substrates, a display section which is composed of a plurality of matrix-arrayed display pixels, and a peripheral region surrounding the display section, a driving circuit, which drives the display pixels, a controller which controls the driving circuit, and a power supply circuit which supplies power to the driving circuit and the controller, wherein the controller and the power supply circuit are built in a 1-chip system IC and are disposed on the peripheral region.
摘要:
The invention relates to a mutant α-amylase obtained by making replacement or deletion of at least one of amino acid residues such as the 167th Gln, 169th Tyr and 178th Ala in the amino acid sequence set forth in SEQ ID NO:1 in an α-amylase having said amino acid sequence, or an α-amylase having a homology of at least 70% to said amino acid sequence, a gene encoding the mutant α-amylase, a vector, transformed cells, a process for producing a mutant α-amylase, comprising culturing the transformed cells, and a detergent composition comprising the mutant α-amylase. The mutant α-amylase of the invention has excellent properties of high resistance to chelating agents, high specific activity in an alkaline region and excellent stability to heat, and is hence useful for detergents for automatic dish washer, laundry detergents and the like.
摘要翻译:本发明涉及通过使SEQ ID NO:1所示的氨基酸序列中的至少一个氨基酸残基例如第167位Gln,第169位和第178位氨基酸置换成α位点而获得的突变型α-淀粉酶 具有所述氨基酸序列的淀粉酶或与所述氨基酸序列具有至少70%同源性的α-淀粉酶,编码突变型α-淀粉酶的基因,载体,转化细胞,用于产生突变型α-淀粉酶的方法, 包括培养转化细胞的淀粉酶和包含突变型α-淀粉酶的洗涤剂组合物。 本发明的突变型α-淀粉酶具有优异的抗螯合剂抗性,在碱性区域中具有高比活性和优异的耐热稳定性,因此可用于自动洗碗机,衣物洗涤剂等的洗涤剂。
摘要:
In the field of stators including divided tooth-shaped iron cores and core back iron cores, a stator is provided in which the tooth-shaped iron cores and the core back iron cores can be easily connected to each other, and the tooth-shaped iron cores and the core back iron cores can be prevented from coming off in the radial direction. In the stator of the present invention, a yoke (24) is formed such that the circumferential width thereof is greater at a radial-outer region than at a radial-inner region, i.e., such that the distance (a) between yoke side faces (24A, 24A) gradually increases from a radial-inner region to a radial-outer region, and the distance (b) between two yoke side faces (24A, 24A) opposing each other and facing a space between the tooth-shaped iron cores (11, 11) that are disposed along a predetermined circumference with a predetermined interval is set to be a predetermined value over a range from a radial-inner region to a radial-outer region, or alternatively, is set so as to slightly decrease from a radial-inner region to a radial-outer region. A stator (10) is formed by inserting each of the core back iron cores (12) into a space between the tooth-shaped iron cores (11, 11) adjacent to each other. The present invention also provides a stator in which a packing factor can be increased and the magnetic flux can be made smooth, and a manufacturing method therefor.