摘要:
Food sterilizing apparatus of the present invention includes an air curtain forming means for producing a steam air curtain which prevents ambient air flow into a pressure regulating chamber and a heating and sterilizing chamber. Further, a pressurized fluid tank is fluid connected via a pipe to a pressurized fluid source and the pressure regulating chamber, so that the inner pressure of the pressure regulating chamber can be rapidly increased.
摘要:
Sterilized and packaged mineral water comprises sterilized mineral water having a hardness of not less than 50 mg/l and a content of dissolved carbonic acid gas ranging from 9 to 30 mg/l (as calcium carbonate) and a number of bacteria of not more than 10.sup.-3 /ml which is obtained by sterilizing pumped-up mineral water having a hardness of not less than 50 mg/l and a content of dissolved carbonic acid gas ranging from 10 to 31 mg/l by filtering through a filter having a pore size of not more than 0.22 .mu.m. The packaged and sterilized mineral water can be effectively prepared by a method which comprises packaging pumped-up mineral water in a container without subjecting it to any heat-sterilization treatment wherein the mineral water is sterilized by passing through a filter having a pore size of not more than 0.22 .mu.m, packaged in a sterilized container under an aseptic condition of not more than Class 100 and then the container is airtight-sealed. Thus, packaged and sterilized mineral water having excellent keeping quality can be obtained without subjecting pumped-up mineral water to any sterilization by heating and without using any antibacterial agent and it has a high hardness and a high carbon dioxide content as well as good taste peculiar to the original mineral water.
摘要:
A gas separating material having excellent CO.sub.2 gas permeating property, mechanical property, and heat resistance has a gas separating layer comprising an aromatic imide polymer which contains 20 to 100 molar % of recurring units of the formula (I): ##STR1## wherein A.sub.1 is a tetravalent aromatic radical, A is a divalent aromatic radical of the formula (II): ##STR2## in which R and R.sup.1 are H or an organic radical, for example, --CH.sub.3, --C.sub.2 H.sub.5, --C.sub.3 H.sub.7, or --CH.sub.2 OH, and n is 0, 1, or 2.
摘要翻译:具有优异的CO 2气体渗透性,机械性能和耐热性的气体分离材料具有包含芳族酰亚胺聚合物的气体分离层,所述芳族酰亚胺聚合物含有20-100摩尔%的式(I)的重复单元: 其中A1是四价芳族基团,A是式(II)的二价芳族基团:其中R和R 1是H或有机基团,例如-CH 3,-C 2 H 5,-C 3 H 7 ,或-CH 2 OH,n为0,1或2。
摘要:
A material for forming electroless plate comprising a non-conductive substrate and a catalyst adhering layer provided on the substrate is constituted so that the catalyst adhering layer contains a hydrophilic ionizing radiation curable resin composition, a surface of the catalyst adhering layer shows a contact angle of 60° or smaller to purified water, and preferably the hydrophilic ionizing radiation curable resin composition is in a half-cured state for the portion of the catalyst adhering layer. A material for forming electroless plate shows favorable adhesion for catalyst, and the catalyst adhering layer hardly dissolves into a plating solution in the step of adhering catalyst, the step of development and other steps.
摘要:
A food sterilizing apparatus has a simple configuration and can completely and efficiently sterilize food. The food sterilizing apparatus is designed to sterilize food contained in rigid food containers and comprises a food supplying section, a linear cylindrical heater, a linear cylindrical cooler and a discharge section, each having inlet and outlet ports arranged respectively at the upstream and downstream ends thereof, any two adjacent ones of said component sections being connected in parallel or rectangularly with each other at the respective outlet and inlet ports thereof with a sealing gate interposed therebetween, said component sections being further provided with respective pushers disposed at the upstream end thereof for moving rigid food containers downstream, each of said pushers having a stroke at least equal to the width of a rigid container.
摘要:
A method for sterilizing and packing a solid food comprises the steps of charging a solid food in a retainer, whose upper portion is opened, in a layer having an approximately uniform thickness, sterilizing the retainer through heating, cooling it with cooling air and/or cooling water, transferring the solid food contained in the retainer to a sterilized packaging container and then aseptically sealing the container. The method permits efficient and rapid heating and cooling of a solid food because of the direct contact between steam or cooling air and/or cooling water and the food without causing a problem such that the packaging container becomes dirty during the sterilization through heating and does not give out any remaining bad smell. Therefore, excess softening and/or destruction of the solid foods as well as any deterioration thereof due to decomposition and alteration of the nutritive substances and flavoring substances present therein can thus be limited to the lowest possible level.
摘要:
In the apparatus and method of the present invention, the solid food to be sterilized is exposed to the steam so that the steam flow directly hits the food. In the another aspect of the invention, the heating and sterilizing chamber for heating and sterilizing the food comprises drain means for draining the unnecessary fluid therefrom. As a result of that, the temperature of the food can be raised uniformly, so that the sterilization of the food without degrading the quality of the food is attainable.
摘要:
A pervaporation separation method of water from an organic material aqueous solution at a high separating efficiency is effected by using a specific asymmetric separating membrane comprising a heat-resistant, solvent-soluble aromatic imide polymer prepared by the polymerization and imidization of an aromatic tetracarboxylic acid component comprising, as a principal ingredient, at least one biphenyl tetracarboxylic acid compound with an aromatic diamine component comprising a principal member selected from: ##STR1## and an additional member selected from another aromatic diamine compounds having 2 to 5 benzene ring structures and different from the diamine compounds (I) and (II).
摘要:
A pervaporation method of separating a liquid organic compound mixture at a high speed and efficiency through an aromatic polyimide asymmetric separating membrane produced from an aromatic tetracarboxylic acid component comprising at least 70 molar % of biphenyl or diphenylether tetracarboxylic dianhydride and an aromatic diamine component comprising 85 molar % or more of an aromatic diamine having 2 to 3 benzene ring structure, or 15 molar % or more of 9,10-di(aminophenyl)anthracene, di(aminophenoxy)diphenylsulfone, di(aminophenoxy)biphenyl or di(aminophenoxy)diphenylalkane compounds, or a mixture of 15 to 50 molar % of an aromatic diamine having alone benzene or pyridine ring structure and 50 to 85 molar % of an aromatic diamine having a 2 to 3 benzene ring structure.
摘要:
An apparatus for producing sterile air comprises a sterilizing filter for filtering microbes in air and an air heater for heating the filtered air for its sterilization. There is provided means for disposing of the sterile air from the air heater at an initial stage of production of the sterile air.