Abstract: Provided is a process for producing a tea extract having a high recovery rate of non-polymer catechins, a low caffeine content and an improved taste and color tone. As one embodiment of this invention provides, there is provided a process for producing a purified tea extract by adsorbing a tea extract on a synthetic adsorbent, bringing an aqueous solution of an organic solvent or a basic aqueous solution into contact with the synthetic adsorbent to elute non-polymer catechins, and then bringing the eluate into contact with activated carbon in an aqueous solution of an organic solvent.

Abstract: This invention relates to a tea extract, which is reduced in bitterness, sourness and coarse taste, has a good affinity with various beverages, and contains non-polymer catechins that are highly stable in a sterilized beverage to which the tea extract is added. A purified tea extract, including: (1) non-polymer catechins (a) in a solid content accounting for from 45 to 90 wt. %; (2) a percentage of gallate body in the non-polymer catechins being from 0.001 to 47 wt. %; and (3) a weight ratio of a gallic acid/the non-polymer catechins being not greater than 0.3.

Abstract: A DC-DC converter 4 accumulates power generated by a power source in a power storage element, converts power from an input into a predetermined voltage to supply the predetermined voltage to a load connected to an output, and is activated to start power feeding when an input voltage exceeds Vd1. A power source control section 8 is connected to the output of the converter 4 to obtain power to operate, and controls the power supply to the load while changing an operation mode according to the power source energy. The section 8 is activated by the start of the power supply by the converter to operate in a low power-consumption mode with only the detected power source energy monitor, and starts the power supply to the load when the energy exceeds a level in which the input voltage becomes equal to Vd2 higher than Vd1.

Abstract: A DC-DC converter 4 accumulates power generated by a power source in a power storage element, converts power from an input into a predetermined voltage to supply the predetermined voltage to a load connected to an output, and is activated to start power feeding when an input voltage exceeds Vd1. A power source control section 8 is connected to the output of the converter 4 to obtain power to operate, and controls the power supply to the load while changing an operation mode according to the power source energy. The section 8 is activated by the start of the power supply by the converter to operate in a low power-consumption mode with only the detected power source energy monitor, and starts the power supply to the load when the energy exceeds a level in which the input voltage becomes equal to Vd2 higher than Vd1.

Abstract: A method for manufacturing a refined fat or oil, including: carrying out a first steam treatment of bringing a fat or oil into contact with water vapor; and subsequently carrying out a second steam treatment of bringing the fat or oil having a temperature lower by 10° C. or more than a temperature of the fat or oil in the first steam treatment into contact with water vapor in the presence of an organic acid.

Abstract: Provided is a method for manufacturing refined fats and oils. Here fats and oils are brought into contact with an adsorbent and subsequently treated with water vapor under at least one condition of the following conditions. In condition I, the time for which the fats and oils are brought into contact with the water vapor in a temperature range of 175° C. to 205° C. for from 5 to 110 minutes. In condition 2, the fats and oils are brought into contact with the water vapor in a temperature range of 205° C. to 215° C. for from 5 to 50 minutes. In condition 3, the fats and oils are brought into contact with the water vapor in a temperature range of 215° C. to 230° C. for from 5 to 30 minutes.

Abstract: Provided is an oil or fat composition, which has an MCPD-FS content (ppm) of 13 ppm or less, the content being measured by a Deutsche Gesellschaft für Fettwissenschaft (DGF) standard method C-III 18(09), has a diacylglycerol content of 15 mass % or more, and is subjected to deodorization treatment.

Abstract: A method for manufacturing a refined fat or oil, including: carrying out a first steam treatment of bringing a fat or oil into contact with water vapor; subsequently carrying out a treatment of bringing the fat or oil into contact with an adsorbent; and further carrying out a second steam treatment of bringing the fat or oil having a temperature lower by 10° C. or more than a temperature of the fat or oil in the first steam treatment into contact with water vapor.

Abstract: Provided is a method of producing a higher alcohol, comprising a step of hydrogenating a lipid obtained by culturing Euglena in the presence of a hydrogenation catalyst.

Abstract: Provided is an oil or fat composition of high diacylglycerol content. Even when used in cooking, the cooked food has a good external appearance without darkening, and retains its inherent flavor. Even when used in cooking after storage under light-exposed conditions, the cooked food is provided with a good external appearance and flavor. The oil or fat composition is obtained by combining, at specific contents, (A) an oil or fat of high diacylglycerol content, said oil or fat having a particular composition, (B) a plant sterol and (C) a plant sterol fatty acid ester.

Abstract: Provided is a method of producing a higher alcohol, comprising a step of hydrogenating a lipid obtained by culturing Euglena in the presence of a hydrogenation catalyst.

Abstract: A purified tea extract is improved in taste by reducing a percentage of gallates in the non-polymer catechins. A process according to the present invention for the production of a purified tea extract includes subjecting a tea extract to a hydrolysis treatment, causing the tea extract to adsorb on the activated carbon, and then bringing a basic aqueous solution or an aqueous solution of an organic solvent into contact with the activated carbon to elute the non-polymer catechins.

Abstract: A method for manufacturing a refined fat or oil, including: carrying out a first steam treatment of bringing a fat or oil into contact with water vapor; subsequently carrying out a treatment of bringing the fat or oil into contact with an adsorbent; and further carrying out a second steam treatment of bringing the fat or oil having a temperature lower by 10° C. or more than a temperature of the fat or oil in the first steam treatment into contact with water vapor.

Abstract: A method for manufacturing a refined fat or oil, including: carrying out a first steam treatment of bringing a fat or oil into contact with water vapor; and subsequently carrying out a second steam treatment of bringing the fat or oil having a temperature lower by 10° C. or more than a temperature of the fat or oil in the first steam treatment into contact with water vapor in the presence of an organic acid.

Abstract: Provided is a method for manufacturing refined fats and oils, including: treating fats and oils by bringing the fats and oils into contact with an adsorbent; and subsequently treating the fats and oils by bringing the fats and oils into contact with water vapor under at least one condition selected from the following conditions: (condition 1) the time for which the fats and oils are brought into contact with the water vapor in a temperature range of 175° C. or more and 205° C. or less is from 5 to 110 minutes; (condition 2) the time for which the fats and oils are brought into contact with the water vapor in a temperature range of more than 205° C. and 215° C. or less is from 5 to 50 minutes; and (condition 3) the time for which the fats and oils are brought into contact with the water vapor in a temperature range of more than 215° C. and 230° C. or less is from 5 to 30 minutes.

Abstract: Provided is an oil or fat composition, which has an MCPD-FS content (ppm) of 13 ppm or less, the content being measured by a Deutsche Gesellschaft für Fettwissenschaft (DGF) standard method C-III 18(09), has a diacylglycerol content of 15 mass % or more, and is subjected to deodorization treatment.

Abstract: Provided is a method for manufacturing refined fats and oils, including: a treating fats and oils by bringing the fats and oils into contact with water vapor or inert gas; and subsequently performing thin-film evaporation of the fats and oils.

Abstract: This invention relates to a process for producing a tea extract. The process includes subjecting a first tea extract solution, which has been obtained from tea, to solid-liquid separation so that a turbidity becomes 200 NTU or lower when a concentration of non-polymer catechins is adjusted to 1 wt %, thereby obtaining a second tea extract solution in which a concentration of (A) non-polymer catechins is from 0.2 to 5 wt % and a concentration of non-polymer catechins in solid content is from 15 to 80 wt %; and then subjecting the second tea extract solution to a heat treatment at a temperature of from 95 to 140° C. for an F value of from 0.05 to 40 min.

Abstract: A purified tea extract with suppressed bitterness and astringency is economically produced in high yield and high efficiency by dramatically accelerating an enzyme reaction with addition of tannase in a smaller amount. A process of the present invention for the production of a purified tea extract includes a first step which comprises eliminating water-insoluble solids from a first tea extract and then obtaining a second tea extract so that a turbidity falls into a range from 0.1 to 100 NTU when a concentration of the non-polymer catechins is adjusted to 0.7 wt %, and a second step which comprises subjecting the second tea extract at a concentration of the non-polymer catechins of from 0.05 to 4.0 wt % to tannase treatment.

Abstract: A purified tea extract is improved in taste by reducing a percentage of gallates in the non-polymer catechins. A process according to the present invention for the production of a purified tea extract includes subjecting a tea extract to a hydrolysis treatment, causing the tea extract to adsorb on the activated carbon, and then bringing a basic aqueous solution or an aqueous solution of an organic solvent into contact with the activated carbon to elute the non-polymer catechins.