Abstract: An object of the present invention is to provide an aromatizing material having excellent floral aroma. The tea aroma composition including linalool, geraniol, and 2-methylbutanal, and has a weight ratio of 2-methylbutanal content to total linalool and geraniol content which is adjusted to be in the range of from 0.010 to 0.215.

Abstract: An object of the present invention is to provide a method for producing a tea aroma composition wherein the excellent aroma of tea leaves is enhanced. In the method for producing a tea aroma composition, tea leaves are treated by steam distillation to collect a distillate and then the obtained distillate is subjected to distillative concentration.

Abstract: An aromatizing material is disclosed that has green layer aroma and makes one feel its aroma in a sustained way. The tea aromatizing liquid composition comprises dimethyl sulfide and ?-ionone, and has a weight ratio of ?-ionone content to dimethyl sulfide content which is adjusted to be in the range of from 0.01 to 3.5.

Abstract: An object of the present invention is to provide a solid composition that provides green layer aroma and makes one feel its aroma in a sustained way when added to a medium such as water. The solid composition comprises dimethyl sulfide and ?-ionone, and has a weight ratio of ?-ionone content to dimethyl sulfide content which is adjusted to be in the range of from 0.003 to 3.

Abstract: An object is to provide a solid composition which is excellent in capability of retaining linalool and geraniol. A solid composition containing linalool d geraniol has dextrin having a molecular weight of 50,000 or more incorporated therein.

Abstract: An object is to provide a solid composition which is excellent in capability of retaining dimethyl sulfide. A solid composition containing dimethyl sulfide has dextrin having a molecular weight of 50,000 or more incorporated therein.

Abstract: An object of the present invention is to provide a solid composition that provides floral aroma when added to a medium such as water. The solid composition comprises linalool, geraniol, and 2-methylbutanal, and has a weight ratio of 2-methylbutanal content to total linalool and geraniol content which is adjusted to be in the range of from 0.015 to 0.215.

Abstract: An object of the present invention is to provide a powder composition having an excellent ability to retain fragrance components derived from tea leaves. In a powder composition comprising a tea leaf extract, a dextrin is added to adjust the molecular weight distribution of the composition such that the percentage of a molecular weight fraction of not less than 250,000 falls within the range of from 0.5 to 10%.

Abstract: An object of the present invention is to provide an aromatizing material having excellent floral aroma. The tea aroma composition comprises linalool, geraniol, and 2-methylbutanal, and has a weight ratio of 2-methylbutanal content to total linalool and geraniol content which is adjusted to be in the range of from 0.010 to 0.215.

Abstract: An object of the present invention is to provide a method for producing a tea aroma composition wherein the excellent aroma of tea leaves is enhanced. In the method for producing a tea aroma composition, tea leaves are treated by steam distillation to collect a distillate and then the obtained distillate is subjected to distillative concentration.

Abstract: A sterilization apparatus characterized in that the sterilization apparatus comprises a reactive oxygen species irradiation unit for irradiating a reactive oxygen species-containing gas which is a reaction product of plasma generated using an alternating current and a water-containing gas containing steam, the sterilization apparatus further containing an inlet unit for steam flow for supplying the water-containing gas heated to a temperature of from 50° to 300° C., wherein the reactive oxygen species-containing gas contains water in an amount equal to or greater than the amount of saturated steam. The sterilization apparatus of the present invention shows excellent sterilization activity, so that it can be suitably used in sterilization of containers for foodstuff, bottle caps sealing the openings of the containers, medical devices, foodstuff such as vegetables and meat, and the like.

Abstract: In a sterilizing system, a sterilizing device receives supply of oxygen and steam. The sterilizing device produces oxygen plasma containing ozone from the supplied oxygen and discharges the produced oxygen plasma and reactive oxygen produced through reaction between the supplied steam and the oxygen plasma as a sterilizing agent. And, the sterilizing system includes an ozone collecting unit for collecting ozone contained in the discharged oxygen plasma.

Abstract: Provided is a purifying method capable of deodorizing a filling device in a shorter period than the conventional purifying method. The purifying method has a sterilizing step for sterilizing at least a filling device either periodically or each time when a kind of a liquid product to be filled thereby is to be changed in an aseptic filling system having the filling device configured to fill a predetermined unit filling amount of such liquid product in an individual container. The method includes an air supplying step #3 for supplying steam to the filling device which has been emptied of the liquid product, prior to or simultaneously with the sterilizing step #5 and a liquid supplying step #4 for supplying, after the air supplying step #3, a rinsing solution or a new liquid product after product change to the filling device.

Abstract: In a sterilizing system, a sterilizing device receives supply of oxygen and steam. The sterilizing device produces oxygen plasma containing ozone from the supplied oxygen and discharges the produced oxygen plasma and reactive oxygen produced through reaction between the supplied steam and the oxygen plasma as a sterilizing agent. And, the sterilizing system includes an ozone collecting unit for collecting ozone contained in the discharged oxygen plasma.

Abstract: A sterilization apparatus characterized in that the sterilization apparatus comprises a reactive oxygen species irradiation unit for irradiating a reactive oxygen species-containing gas which is a reaction product of plasma generated using an alternating current and a water-containing gas containing steam, the sterilization apparatus further containing an inlet unit for steam flow for supplying the water-containing gas heated to a temperature of from 50° to 300° C., wherein the reactive oxygen species-containing gas contains water in an amount equal to or greater than the amount of saturated steam. The sterilization apparatus of the present invention shows excellent sterilization activity, so that it can be suitably used in sterilization of containers for foodstuff, bottle caps sealing the openings of the containers, medical devices, foodstuff such as vegetables and meat, and the like.

Abstract: An image density control method for an image forming apparatus in which, in order to keep the development capability constant over time, the toner density in the developer is manipulated to an appropriate range by changing the toner density control reference value in accordance with the toner replacement amount in a fixed time period by ascertaining changes in the image coverage of the output images, and by changing the image forming conditions at predetermined execution intervals.

Abstract: An image density control method for an image forming apparatus in which, in order to keep the development capability constant over time, the toner density in the developer is manipulated to an appropriate range by changing the toner density control reference value in accordance with the toner replacement amount in a fixed time period by ascertaining changes in the image coverage of the output images, and by changing the image forming conditions at predetermined execution intervals.

Abstract: An image forming apparatus in which a predetermined image density can be obtained by correcting a toner density control target value without consuming toner. The output The output value Vt of the magnetic permeability sensor and the target output value Vtref are compared, and the toner density is controlled by controlling a powder pump on the basis of the comparative result thereof so that the output value Vt approximates the target output value Vtref. In addition, the target output value Vtref is corrected on the basis of the detected result of the image coverage ratio so as to maintain a predetermined development potential of the development apparatus. By virtue of this, even when image forming that involves a significant change in the toner replacement amount in the development apparatus is performed, for example, even when an image of high image coverage ratio is output, the toner density is adjusted to maintain the development capability at a constant, and a predetermined image density is ensured.

Abstract: An image forming apparatus, which comprises a toner density detection device for detecting the density of a toner inside a developing device, acquires the number of pixels from inputted image information, calculates the toner replenishment amount from the toner density detection value and the information on the pixels, and thereby performs replenishment control so that excessive replenishment or insufficient replenishment of the toner is not caused. The upper limit value of the amount of toner to be replenished at once to the developing device is changed in accordance with the amount of information on an input image such as the image area, pixels of the input image.

Abstract: An image forming apparatus in which a predetermined image density can be obtained by correcting a toner density control target value without consuming toner. The toner density of the developer is controlled so that an output value Vt of a magnetic permeability sensor approaches a target output value Vtref. In addition, the target output value Vtref is corrected in accordance with image coverage history information of output images transferred to a transfer paper and image coverage ratio history information of output images determined from the image coverage thereof and the size of the transfer paper. This history information comprises, for example, a cumulative average value of the image coverage or the image coverage ratio per transfer paper. It may also comprise a moving average value of the image coverage or the image coverage ratio per transfer material.