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公开(公告)号:JPH0241165A
公开(公告)日:1990-02-09
申请号:JP18812588
申请日:1988-07-29
Applicant: UBE INDUSTRIES
Inventor: SATO SANEHIRO , TAKESHITA MICHIO , KONO TAKASHI , YABUTA HIROMI
IPC: A61L9/01
Abstract: PURPOSE:To obtain a deodorant containing no caffeine, having excellent deodorizing efficiency and safe from an aspect of health by combining a selective extraction and removal method of caffeine due to a fluid in a supercritical state with an extraction method of an effective component as a deodorant by a solvent. CONSTITUTION:In the presence of water, tea leaves are brought into contact with a solution mixture of a fluid brought to a supercritical state from a gaseous state and at least one kind of an alcoholic org. solvent selected from 1-4C lower aliphatic monohydric alcohols in a supercritical state to selectively extract and remove caffeine from tea leaves. The obtained extraction residue is extracted with a solvent and the raw material residue is removed from the extracted solution by filtering while the filtrate is conc. or conc. to dryness to obtain a raw deodorizing liquid or powder. The deodorant thus prepared contains 5-20wt.% of tannin as a principal deodorizing effective component and the deodorizing rate thereof is 80% or more and the caffeine content thereof is 1wt.% or less.
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公开(公告)号:JPS53130653A
公开(公告)日:1978-11-14
申请号:JP4409377
申请日:1977-04-19
Applicant: UBE INDUSTRIES
Inventor: INABA YUKIO , NISHI TAICHIROU , MURAKAMI HIROTORA , TAKESHITA MICHIO
IPC: C07D307/33 , C07D307/32
Abstract: PURPOSE:To prepare UPSILON-lactone in high purity, useful as a perfumery, by reacting acrylic acid with an alcohol, separating UPSILON-lactone fraction by removing the high boiling components by vacuum distillation, and finally distilling the fraction in the presence of an alkali hydrogen carbonate.
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公开(公告)号:JPS53119274A
公开(公告)日:1978-10-18
申请号:JP3395477
申请日:1977-03-29
Applicant: UBE INDUSTRIES
Inventor: INABA YUKIO , MIYATAKE TAKASHI , TAKESHITA MICHIO
IPC: B01D3/14
Abstract: PURPOSE:To increase recovery ratio for each component and to reduce distillation time by installing a flux drum of variable capacity at the top distillate line of a distillation column, by setting the capacity of the drum for the quantity of the component to be separated, and by taking the distillate received in the drum out of the system after total reflux operation.
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公开(公告)号:JPH01289448A
公开(公告)日:1989-11-21
申请号:JP11816588
申请日:1988-05-17
Applicant: UBE INDUSTRIES
Inventor: SATO SANEHIRO , TAKESHITA MICHIO , KONO TAKASHI , IIDA HIROYUKI
Abstract: PURPOSE:To raise removal ratio of caffeine without extracting useful substances from a plant material by extracting and removing caffeine from the plant material with a solution prepared by adding a specific organic solvent to a fluid made into a supercritical state from a gas. CONSTITUTION:The bottom of an extractor 1 is charged with water, a plant material is packed into the upper part of the container, a gas such as carbon dioxide is introduced from a storage tank 10 to a heat exchanger 4, liquefied and fed to the bottom of the extractor 1 by a circulating pump 5. An organic solvent of 1-4C lower aliphatic saturated monohydric alcohol base is sent from a storage tank 11 to a delivery piping of the circulating pump 5 by a supply pump 6 and blended with the carbon dioxide. The pressure of the circulating solution in a supercritical state, containing water provided with caffeine is reduced by a pressure-control valve 8 set in a conduit from a separator 2 to a heat exchanger 9, a first component is gasified and separated into gas and liquid by the separator 2. A second component containing caffeine is introduced to a separating system 3 to separate caffeine.
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公开(公告)号:JPS6042796B2
公开(公告)日:1985-09-25
申请号:JP4409377
申请日:1977-04-19
Applicant: UBE INDUSTRIES
Inventor: INABA YUKIO , NISHI TAICHIRO , MURAKAMI HIROTORA , TAKESHITA MICHIO
IPC: C07D307/33 , C07D307/32
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公开(公告)号:JPS5387336A
公开(公告)日:1978-08-01
申请号:JP122377
申请日:1977-01-11
Applicant: UBE INDUSTRIES
Inventor: NAKAI MAMORU , KUROKI YOSHIAKI , MORI YOSHIKATSU , HAYASHI YURIO , INABA YUKIO , TAKESHITA MICHIO , MIYATAKE TAKASHI , SEKIYA JIROU , SATOU ISAO
Abstract: PURPOSE:2,3-epoxy-3-alkylcyclopentanone is heated in the presence of an aqueous mineral acid of a specific concentration to produce title compound useful as a flavor bread, cake, beverages, and instant coffee in high yield.
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