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: Provided are a preparation process of a purified green-tea extract capable of easily and efficiently removing a turbidity component contained in a green tea extract; a purified green-tea extract prepared by the preparation process; and a packaged beverage containing the purified green-tea extract. The preparation process of a purified green-tea extract containing, in the solid content thereof, from 36 to 99 mass % of non-polymer catechins comprises bringing a green tea extract into contact with a mixed solution containing an organic solvent and water at a mass ratio of from 65/35 to 97/3 and active carbon and/or acid clay or active clay, adjusting the organic solvent/water mass ratio of the resulting solution to from 0/100 to 85/15, and then separating the turbidity component thus separated.

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: Provided is a process for producing a purified green tea extract of high quality by readily and efficiently purifying a green tea extract in a simple manner. A process for producing a purified product of green tea extract, which includes subjecting an aqueous solution of green tea extract to solid-liquid separation by filtration and/or centrifugal separation to obtain another aqueous solution of green tea extract, said another aqueous solution having a turbidity of from 0.2 to 2.0 as measured with a concentration of non-polymer catechins in it adjusted to 1 wt %, and then allowing the another aqueous solution of green tea extract to pass through a polymer membrane having a membrane pore size of from 0.05 to 0.8 ?m such that the turbidity of the another aqueous solution of green tea extract is reduced to lower than 0.2 as measured with a concentration of non-polymer catechins in it adjusted to 1 wt %.

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: The invention relates to a process for producing a fatty alcohol and glycerin by hydrogenation reaction of fats and oils in the presence of a catalyst, wherein the reaction is carried out in the coexistence 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: The invention provides a process for producing an alcohol, including the step of hydrogenating a glyceride in the presence of a catalyst, adding water, or a process for producing an alcohol, including the step of hydrogenating a glyceride in the presence of a catalyst and in the presence of from 0.5 or more of water per mole of the starting glyceride.

Abstract: A preparation process of a purified green tea extract including mixing a green tea extract treated with an enzyme having a tannase activity in a mixed solution containing an organic solvent and water at a mass ratio exceeding 90/10 and not greater than 97/3, and separating a precipitate thus formed. The process is for producing a purified green tea extract, from a green tea extract, containing non-polymer catechins in high concentration, which can improve the taste by reducing bitterness/astringency and miscellaneous tastes caused by dietary fibers of green tea, provide a reduced protein content, and make it easy to drink.

Abstract: A process for producing a purified green tea extract including mixing a green tea extract treated with an enzyme having a tannase activity in a mixed solution containing an organic solvent and water at a mass ratio from 60/40 to 90/10 and separating a precipitate thus formed. The process is for producing a purified green tea extract, from a green tea extract, containing non-polymer catechins in a high concentration of, which can improve the taste by reducing bitterness/astringency and miscellaneous tastes caused by dietary fiber derived from green tea, provide a reduced protein content, and make it easy to drink.

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: Provided are a preparation process of a purified green-tea extract capable of easily and efficiently removing a turbidity component contained in a green tea extract; a purified green-tea extract prepared by the preparation process; and a packaged beverage containing the purified green-tea extract. The preparation process of a purified green-tea extract containing, in the solid content thereof, from 36 to 99 mass % of non-polymer catechins comprises bringing a green tea extract into contact with a mixed solution containing an organic solvent and water at a mass ratio of from 65/35 to 97/3 and active carbon and/or acid clay or active clay, adjusting the organic solvent/water mass ratio of the resulting solution to from 0/100 to 85/15, and then separating the turbidity component thus separated.

Abstract: The invention provides a process for producing an alcohol, including the step of hydrogenating a glyceride in the presence of a catalyst, adding water, or a process for producing an alcohol, including the step of hydrogenating a glyceride in the presence of a catalyst and in the presence of from 0.5 or more of water per mole of the starting glyceride.

Abstract: A process for producing a purified product of green tea extract, which includes subjecting an aqueous solution of green tea extract to solid-liquid separation by filtration and/or centrifugal separation to obtain another aqueous solution of green tea extract, said another aqueous solution having a turbidity of from 0.2 to 2.0 as measured with a concentration of non-polymer catechins in it adjusted to 1 wt %, and then allowing the another aqueous solution of green tea extract to pass through a polymer membrane having a membrane pore size of from 0.05 to 0.8 ?m such that the turbidity of the another aqueous solution of green tea extract is reduced to lower than 0.2 as measured with a concentration of non-polymer catechins in it adjusted to 1 wt %.

Abstract: The invention relates to a process for producing a fatty alcohol and glycerin by hydrogenation reaction of fats and oils in the presence of a catalyst, wherein the reaction is carried out in the coexistence of an organic solvent.

Abstract: A process for preparing a glycerol from a crude glycerol comprising a glycerol, a diol and water, comprising feeding the crude glycerol to a preparation apparatus comprising two or more, serially connected flash towers and a distillation tower connected to a final flash tower, wherein a bottom fraction of each flash tower is fed to a subsequent flash tower; and adjusting an internal pressure of each flash tower to from 0.13 to 40 kPa, an internal temperature of each flash tower to 140° C. or less, a water content of the bottom fraction of the final flash tower to 0.1% by weight or less, and a pressure at bottom of the distillation tower to from 0.13 to 0.90 kPa.

Abstract: A process for preparing a glycerol from a crude glycerol comprising a glycerol, a diol and water, comprising feeding the crude glycerol to a preparation apparatus comprising two or more, serially connected flash towers and a distillation tower connected to a final flash tower, wherein a bottom fraction of each flash tower is fed to a subsequent flash tower; and adjusting an internal pressure of each flash tower to from 0.13 to 40 kPa, an internal temperature of each flash tower to 140° C. or less, a water content of the bottom fraction of the final flash tower to 0.1% by weight or less, and a pressure at bottom of the distillation tower to from 0.13 to 0.90 kPa.

Abstract: A method for producing an alcohol including the steps of continuously supplying and flowing starting materials of an alcohol in a reducing reactor; and carrying out catalytic reduction reaction of the starting materials with hydrogen gas in the presence of a hydrogenation catalyst. In this method, the catalytic reduction reaction of the starting materials is carried out under temperature conditions of not less than a dew point of the resulting alcohol, and the starting materials of an alcohol are brought in contact with hydrogen gas in the presence of a hydrogenation catalyst, in which at least one substance selected from the group consisting of starting materials of an alcohol, alcohols, wax esters, and hydrocarbons is present in a liquid form on a surface or within pores of the hydrogenation catalyst.

Abstract: A method for producing an alcohol comprising the steps of continuously feeding starting materials of an alcohol; and carrying out catalytic reduction reaction of the starting materials in the presence of a hydrogenation catalyst, wherein said starting materials of an alcohol and a hydrogen gas are fed in a gaseous state or a mixture of liquid and gaseous states in a reduction reactor, and wherein said catalytic reduction reaction of the starting materials is carried out under temperature conditions, pressure conditions, and conditions of a molar ratio of hydrogen ((hydrogen molecules/(acyl groups in the starting materials)), sufficient to give an evaporation ratio of the starting materials of from 20 to 80% by weight, and wherein a ratio of VG to VL satisfies the following relationship in the reduction reactor: 100.ltoreq.VG/VL.ltoreq.