摘要:
A method for producing an oil and fat composition includes the steps of (a) mixing an oil and fat (A) wherein fatty acids with 14 or less carbon atoms are contained in an amount of 50 to 100% by mass of the entire constituent fatty acids of the triglycerides with an oil and fat (B) wherein fatty acids with 16 to 24 carbon atoms are contained in an amount of 80 to 100% by mass of the entire constituent fatty acids of the triglycerides to obtain an oil and fat mixture; (b) subjecting the oil and fat mixture to random transesterification using an enzyme having no positional specificity, and (c) obtaining an oil and fat composition free from trans-fatty acid.
摘要:
It is an object of the present invention to provide a fuel cell electrolyte membrane reinforced with a porous substrate which has excellent durability and in which the amount of cross leakage as a result of chemical deterioration of electrolyte membrane components due to the presence of peroxide and/or radicals is particularly reduced. The present invention relates to an electrolyte membrane for a fuel cell comprising a polyelectrolyte, which contains a porous substrate and a radical scavenger dispersed in the polyelectrolyte.
摘要:
The present invention provides a reinforced electrolyte membrane for fuel cell comprising a porous substrate impregnated with a polyelectrolyte liquid dispersion, wherein either the maximum tensile strength in the machine direction (for sheet processing) (MD) or the maximum tensile strength in the transverse direction (TD; vertical to the MD direction) for the electrolyte membrane is 70 N/mm2 or more at 23° C. at a relative humidity of 50% or 40 N/mm2 or more at 80° C. at a relative humidity of 90%. This reinforced electrolyte membrane for fuel cell, in which the amount of fluorine ions eluted as a result of deterioration of electrolyte membrane components in particular is reduced, has excellent durability.
摘要翻译:本发明提供一种用于燃料电池的增强电解质膜,其包括浸渍有聚电解质液体分散体的多孔基材,其中在纵向(用于片材加工)(MD)或在横向上的最大拉伸强度 在相对湿度90%的相对湿度为50%或40N / mm 2以上的情况下,电解质膜的电阻率为70N / mm 2以上,相对湿度90% 。 这种用于燃料电池的增强电解质膜特别是由于电解质膜组分的劣化而洗脱的氟离子的量减少,具有优异的耐久性。
摘要:
There is provided an enzymatic method of rapid quantitative assay for 1,5-anhydroglucitol which is also applicable to an automated analysis device. The enzymatic method of quantitative assay for 1,5-anhydroglucitol is characterized by using a pyranose oxidase derived from Basidiomycetous fungi No. 52 as a pyranose oxidase. According to the assaying method of the present invention, assay for 1,5-anhydroglucitol in a specimen can be performed using an automated analysis device, results in rapid assay and improved accuracy.
摘要:
According to the present invention, there are provided a monoclonal antibody to prostate-derived acid phosphatase and a method for determination of prostate-derived acid phosphatase using the monoclonal antibody. Prostate-derived acid phosphatase is boostered in animal and spleen cells isolated from the animal are fused with myeloma cells. The hybridoma capable of producing a monoclonal antibody having extremely high specificity to prostate-derived acid phosphatase is subjected to cloning. Using the monoclonal antibody produced by the hybridoma, prostate-derived acid phosphatase in a sample can be detected with extremely high sensitivity.
摘要:
Novel N.sup.G -protected or unprotected-L-argininal-dibutyl acetals (I) can be prepared from L-argininal derivatives (III) merely by reacting in an azeotropic solvent in the presence of p-toluenesulfonic acid. In the products (I), L-form amounts to more than 99%, without further optical resolution. The L-argininal acetals (I) are useful as starting materials for preparing peptidyl-L-argininal derivatives which can provide protease inhibitors or ligands used for affinity chromatography of various proteases.
摘要:
Novel N-acetyl-.beta.-D-glucosamine derivatives and a method for assaying N-acetyl-.beta.-D-glucosaminidase activity using the same as substrate are provided.N-Acetyl-.beta.-D-glucosamine derivatives represented by general formula (I): ##STR1## wherein each of R.sub.1 and R.sub.2 independently represents hydrogen atom or methyl or ethyl group, are mixed with a sample containing N-acetyl-.beta.-D-glucosaminidase (NAG) and then absorbance of the reaction solution is determined to assay NAG activity extremely accurately.
摘要:
A facsimile apparatus using a continuous length of recording paper with its first surface for recording and its second surface for transmitting scripts. Received facsimile signals are recorded on the first surface through a recording section, and scripts which are to be transmitted are written on the second surface and read through a reading section. This arrangement needs only one paper feeding passage and enables the paper to be efficiently used, since the non-recording surface of the paper can be used as a surface on which scripts are written.
摘要:
A novel substrate for measuring thrombin which has chromophoric and fluorescent properties on thrombin or a thrombin-like enzymes and is represented by a compound of the following general formula or a salt thereof: ##STR1## wherein R represents ##STR2##
摘要:
Pyrimidine derivatives represented by the formula, ##SPC1##Wherein R.sub.1 and R.sub.2 are individually a hydrogen atom or a methyl group, and R.sub.3 is a group formed by removing the carboxyl group from a carboxylic acid, are quite useful in acylating compounds having amino and/or imino and/or hydroxyl groups. The pyrimidine derivatives can easily be prepared by reacting a 2-mercapto-4- and/or 6-methyl-substituted or unsubstituted pyrimidine with a carboxylic acid or a reactive derivative thereof in an inert solvent.