Abstract: The present invention relates to a method for producing tagatose using soy oligosaccharide or soluble sugar solution containing the same, more precisely, a method for producing tagatose comprising the following steps; hydrolyzing soy oligosaccharide by using ?-galactosidase selectively; producing tagatose continuously by enzymatic isomerization of galactose obtained from the hydrolysate; separating the produced tagatose by chromatography; and recycling the non-reacted materials.

Abstract: Provided is a method of producing D-psicose using a D-psicose epimerase derived from Agrobacterium tumefaciens. Provided are a protein having an amino acid sequence of SEQ ID NO:1 and having a psicose 3-epimerase activity, a gene encoding the protein, a recombinant expression vector containing the gene, and a method of producing D-psicose by reacting the protein produced on a mass scale with D-fructose. The method of producing D-psicose is an environmentally friendly method using a new enzyme, in which an inexpensive substrate is used, and the activity of the enzyme can be retained for a prolonged time period. Thus, the method can be efficiently used for the mass production of D-psicose.

Abstract: Disclosed is a method of producing xylitol using a hydrolysate containing xylose and arabinose prepared from byproducts of tropical fruit biomass and more precisely, a method of producing xylitol which includes the steps of producing xylose and arabinose by the pretreatment of tropical fruit biomass byproducts including coconut shell, palm shell and oil palm empty fruit bunch (OPEFB) via acid (0.2-5%) hydrolysis and an electrodialysis and an ionic purification; and producing xylitol with high yield based on repeated batch fermentation using a hydrolysate containing xylose and arabinose as a carbon source. In addition, the present invention relates to an active carbon produced by carbonization and activation of a hydrolysate remainder of a tropical fruit shell, the byproduct of xylose and arabinose production, at a certain temperature and a preparation method of the same.

Abstract: The present invention relates to a recombinant GRAS (Generally Recognized As Safe) strains expressing thermophilic arabinose isomerase as an active form and method of food grade tagatose by using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophilic Geobacillus stearothermophilus DSM22 and Geobacillus thermodenitrificans, a recombinant expression vector containing the gene, a recombinant GRAS strains expressing the thermophilic arabinose isomerase as an active form by transformed with the expression vector, and a method of preparing food grade tagatose from galactose by using the same.

Abstract: The present invention relates to a manufacturing method of tagatose using galactose isomerization of high yield, more particularly a method to enhance conversion rate of isomerization by adding borate which binds specifically to tagatose and a manufacturing method of tagatose using the same.

Abstract: The present invention relates to a thermophilic arabinose isomerase and a method of manufacturing tagatose using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophile Thermotoga neapolitana DSM 5068, a recombinant expression vector containing the gene, a method of preparing a food grade thermophilic arabinose isomerase from the recombinant GRAS (Generally Recognized As Safe) strain transformed with the said expression vector, and a method of preparing tagatose from galactose using the said enzyme.

Abstract: Provided is a process for continuously producing xylitol in high yield and productivity using a vacuum microfiltration bioreactor containing a fermentation medium for a strain of the genus Candida, which includes: 5 300 g/l of xylose, 1 10 g/l of urea, 1 10 g/l of potassium diphosphate, 0.01 1 g/l of magnesium sulfate, 0.1-10 mg/1 of MnSO404H2O, 0.1 10 mg/1 of CoCl2-6H2O, 0.1 10 mg/1 of NaMoO4-2H2O, 0.1 10 mg/1 of ZnSO4-7H2O, 0.1 10 mg/1 of AlCl3-6H2O, 0.1 10 mg/1 of CuCl2-2H2O, 0.01-5 mg/1 of H3BO3, 1-100 mg/1 of FeSO4 7H2O, 0.1-10 mg/1 of ascorbic acid, 1-100 mg/1 of biotin, 1-100 mg of choline, 1-200 mg/1 of folic acid, 1-100 mg/1 of inositol, 1-100 mg/1 of nicotinic acid, 0.1-10 mg/1 of p-aminobezoic acid, 1-100 mg/1 of pantothernic acid, 0.1-10 mg/1 of pyridoxine, 10-1,000 mg/1 of riboflavin, and 1-100 mg/1 of thiamine.

Abstract: Provided is a process for continuously producing xylitol in high yield and productivity using a vacuum microfiltration bioreactor containing a fermentation medium for a strain of the genus Candida, which includes: 5 300 g/l of xylose, 1 10 g/l of urea, 1 10 g/l of potassium diphosphate, 0.01 1 g/l of magnesium sulfate, 0.1-10 mg/l of MnSO4.4H2O, 0.1 10 mg/l of CoCl2.6H2O, 0.1 10 mg/l of NaMoO4.2H2O, 0.1 10 mg/l of ZnSO4.7H2O, 0.1 10 mg/l of AlCl3.6H2O, 0.1 10 mg/l of CuCl2.2H2O, 0.01-5 mg/l of H3BO3, 1-100 mg/l of FeSO4 7H2O, 0.1-10 mg/l of ascorbic acid, 1-100 mg/l of biotin, 1-100 mg of choline, 1-200 mg/l of folic acid, 1-100 mg/l of inositol, 1-100 mg/l of nicotinic acid, 0.1-10 mg/l of p-aminobezoic acid, 1-100 mg/l of pantothenic acid, 0.1-10 mg/l of pyridoxine, 10-1,000 mg/l of riboflavin, and 1-100 mg/l of thiamine.

Abstract: The present invention relates to a thermophilic arabinose isomerase and a method of manufacturing tagatose using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophilic Thermotoga neapolitana DSM 5068, a recombinant expression vector containing the gene, a method of preparing a food grade thermophilic arabinose isomerase from the recombinant GRAS (Generally Recognized As Safe) strain transformed with the said expression vector, and a method of preparing tagatose from galactose using the said enzyme.

Abstract: The present invention relates to a thermophilic arabinose isomerase and a method of manufacturing tagatose using the same, and more precisely, a gene encoding arabinose isomerase originating from the thermophile Geobacillus stearothermophilus DSM22, a recombinant expression vector containing the gene, a method of preparing a food grade thermophilic arabinose isomerase from the recombinant GRAS (Generally Recognized As Safe) strain transformed with the said expression vector, and a method of preparing tagatose from galactose using the said enzyme.

Abstract: Provided is a process for continuously producing xylitol in high yield and productivity using a vacuum microfiltration bioreactor containing a fermentation medium for a strain of the genus Candida, which includes: 5 300 g/l of xylose, 1 10 g/l of urea, 1 10 g/l of potassium diphosphate, 0.01 1 g/l of magnesium sulfate, 0.1-10 mg/l of MnSO4.4H2O, 0.1 10 mg/l of CoCl2.6H2O, 0.1 10 mg/l of NaMoO4.2H2O, 0.1 10 mg/l of ZnSO4.7H2O, 0.1 10 mg/l of AlCl3.6H2O, 0.1 10 mg/l of CuCl2.2H2O, 0.01-5 mg/l of H3BO3, 1-100 mg/l of FeSO4 7H2O, 0.1-10 mg/l of ascorbic acid, 1-100 mg/l of biotin, 1-100 mg of choline, 1-200 mg/l of folic acid, 1-100 mg/l of inositol, 1-100 mg/l of nicotinic acid, 0.1-10 mg/l of p-aminobezoic acid, 1-100 mg/l of pantothenic acid, 0.1-10 mg/l of pyridoxine, 10-1,000 mg/l of riboflavin, and 1-100 mg/l of thiamine.

Abstract: A display apparatus comprising a gamma correction part for gamma correcting an input video signal; a selection input part for selecting the amount of correction by the gamma correction part; and a micro-control unit for controlling the correction amount by the gamma correction part depending upon a selection from the selection input part. With this configuration, the input video signals are gamma corrected within the display apparatus and can be output in the optimal state. And, whether to perform gamma correction or not, and the amount of gamma correction for the display apparatus may be selected as the user desires.

Abstract: A display apparatus comprising a gamma correction part for gamma correcting an input video signal; a selection input part for selecting the amount of correction by the gamma correction part; and a micro-control unit for controlling the correction amount by the gamma correction part depending upon a selection from the selection input part. With this configuration, the input video signals are gamma corrected within the display apparatus and can be output in the optimal state. And, whether to perform gamma correction or not, and the amount of gamma correction for the display apparatus may be selected as the user desires.

Abstract: A displaying apparatus comprises: a displaying part for displaying a picture; a selection input part for selecting for display a highlight portion within the picture of the displaying part; a storage part for storing data according to the selection made through the selection input part; and a controller for generating a highlight signal corresponding to the highlight portion based on the selected data, for composing or combining the highlight signal and the video signal to thereby generate a composed or combined video signal, and for displaying the highlight portion within the picture of the displaying part based on the composed or combined video signal. With this configuration, the size, position and brightness of a highlight portion can be adjusted, as desired, by specifying the highlight portion within a picture of a displaying part. A method for controlling such a displaying apparatus includes steps corresponding to the functions of the various components of the displaying apparatus, as described above.

Abstract: A noise filter includes: a rectifier for receiving and rectifying a pulse output from a signal generator; and a CMOS logic IC for converting the rectified pulse output of the rectifier into a power source, and for filtering noise component mixed in the pulse output from the signal generator.

Abstract: This invention relates to a process for preparing cyclohexanol and cyclohexanone, in particular, to a process for preparing cyclohexanol and cyclohexanone by selectively oxidizing cyclohexane with Fe/Pd catalyst in a flow of hydrogen and oxygen gases in the mixture of acetone and acetic acid.