DE953904C - Process for the preparation of almost colorless capsicum extracts - Google Patents

Process for the preparation of almost colorless capsicum extracts

Info

Publication number
DE953904C
DE953904C DEB37581A DEB0037581A DE953904C DE 953904 C DE953904 C DE 953904C DE B37581 A DEB37581 A DE B37581A DE B0037581 A DEB0037581 A DE B0037581A DE 953904 C DE953904 C DE 953904C
Authority
DE
Germany
Prior art keywords
colorless
preparation
extract
capsicum extracts
capsicum
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEB37581A
Other languages
German (de)
Inventor
Dipl-Chem Dr Hans Ruhkopf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Beiersdorf AG
Original Assignee
Beiersdorf AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Beiersdorf AG filed Critical Beiersdorf AG
Priority to DEB37581A priority Critical patent/DE953904C/en
Application granted granted Critical
Publication of DE953904C publication Critical patent/DE953904C/en
Expired legal-status Critical Current

Links

Classifications

    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61K—PREPARATIONS FOR MEDICAL, DENTAL OR TOILETRY PURPOSES
    • A61K36/00—Medicinal preparations of undetermined constitution containing material from algae, lichens, fungi or plants, or derivatives thereof, e.g. traditional herbal medicines
    • A61K36/18—Magnoliophyta (angiosperms)
    • A61K36/185—Magnoliopsida (dicotyledons)
    • A61K36/81—Solanaceae (Potato family), e.g. tobacco, nightshade, tomato, belladonna, capsicum or jimsonweed

Landscapes

  • Health & Medical Sciences (AREA)
  • Natural Medicines & Medicinal Plants (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Alternative & Traditional Medicine (AREA)
  • Biotechnology (AREA)
  • Botany (AREA)
  • Medical Informatics (AREA)
  • Medicinal Chemistry (AREA)
  • Microbiology (AREA)
  • Mycology (AREA)
  • Pharmacology & Pharmacy (AREA)
  • Epidemiology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Medicines Containing Plant Substances (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Medicinal Preparation (AREA)

Description

Verfahren zur Darstellung fast farbloser Capsicum-Extrakte Es ist bekannt, daß der rote Farbstoff des natürlichen Capsicum-Extraktes durch milde Oxydationsmittel ohne gleichzeitige Beeinflussung des in ihm enthaltenen Capsaicins gebleicht werden kann, wodurch je nach dem Grad der Entfärbung schwachgelb bis grüngelb gefärbte Substrate entstehen, die in Salben und Krems zu optisch farblosen Produkten verarbeitet werden können.Process for the preparation of almost colorless capsicum extracts It is known, that the red color of the natural capsicum extract is produced by mild oxidizing agents be bleached without affecting the capsaicin it contains can, whereby depending on the degree of discoloration pale yellow to green-yellow colored Substrates are created that are processed into optically colorless products in ointments and creams can be.

Nach Patent 542 892 eignen sich zu diesem Bleichprozeß bevorzugt organische Peroxyde vom Typ Benzoyl- und Acetylperoxyd. Der Nachteil dieses Verfahrens besteht vor allem darin, daß verhältnismäßig große Mengen dieser Oxyde zur Erzielung eines ausreichenden Effektes verwendet werden müssen (bis zu 5 Teilen Bleichmittel auf I Teil Extrakt), deren Zersetzungsprodukte eine unerwünschte Verunreinigung des Naturextraktes bewirken. Ihre Entfernung ist ziemlich schwierig, da sie - wie das Capsaicin - sauren Charakter zeigen und vom Extrakt hartnäckig zurückgehalten werden. According to patent 542,892, this bleaching process is preferred organic peroxides of the benzoyl and acetyl peroxide types. The disadvantage of this procedure is mainly that relatively large amounts of these oxides to achieve a sufficient effect must be used (up to 5 parts bleach on I part extract), the decomposition products of which are an undesirable impurity of the natural extract. Their removal is quite difficult as they - like the capsaicin - show acidic character and stubbornly withheld by the extract will.

Es wurde nun gefunden, daß der gewünschte Effekt ohne das Auftreten unerwünschter Nebenprodukte und in wesentlich kürzerer Zeit erzielt werden kann, wenn der rote natürliche Extrakt in der gleichen Gewichtsmenge eines alicyclischen Ethers, z. B. Furan, Tetrahydrofuran oder Dioxan, gelöst und bei Wasserbadtemperatur, also bei Temperaturen bis I00°, und geringem Unterdruck Luft durch diese Lösung hindurchgeleitet wird, wobei das Lösungsmittel langsam verdampft. Unter dem eigenkatalytischen Einfluß der genannten Lösungsmittel entstehen hierbei geringe Mengen von Ätherperoxyden, die die Oxydation des Farbstoffes zu schwachgelben Endprodukten durchführen und die bei Beendigung des Prozesses aus dem Extrakt wieder restlos verschwunden sind. It has now been found that the desired effect without the occurrence unwanted by-products and can be achieved in a much shorter time, if the red natural extract in the same amount by weight of an alicyclic Ethers, z. B. furan, tetrahydrofuran or dioxane, dissolved and at water bath temperature, ie Air passed through this solution at temperatures of up to 100 ° and a slight negative pressure the solvent slowly evaporating. Under the self-catalytic influence of the solvents mentioned, small amounts of ether peroxides are formed, which carry out the oxidation of the dye to pale yellow end products and which have completely disappeared from the extract at the end of the process.

Beeinflussung des Wirkstoffgehaltes tritt nicht ein.The active ingredient content is not influenced.

Bei nicht rein roten Naturextrakten empfiehlt es sich, vor dem Bleichprozeß eine Chromatographierung an Aluminiumoxyd einzuschalten, wodurch andere Farbstoffe, z. B. Chlorophyll, sowie stich stofffreie Nebenprodukte zurückgehalten werden. In the case of natural extracts that are not purely red, it is advisable to start the bleaching process to switch on a chromatography on aluminum oxide, whereby other dyes, z. B. Chlorophyll, as well as substance-free by-products are retained.

Claims (2)

PATENTANSPRÜCHE: I. Verfahren zur Darstellung fast farbloser Capsicum-Extrakte, dadurch gekennzeichnet, daß man den Naturextrakt mit einem alicyclischen Äther unter Durchleiten von Luft bei geringem Unterdruck auf dem Wasserbad erhitzt. PATENT CLAIMS: I. Process for the preparation of almost colorless Capsicum extracts, characterized in that the natural extract with an alicyclic ether under Passing air heated on the water bath at a slight negative pressure. 2. Verfahren nach Anspruch I, dadurch gekennzeichnet, daß man, insbesondere bei Anwesenheit von Chlorophyll, im Extrakt vor dem BleichdRrozeß eine Chromatographierung der Extraktlösung an Aluminiumoxyd vornimmt. 2. The method according to claim I, characterized in that one, in particular in the presence of chlorophyll, chromatography in the extract before the bleaching process of the extract solution on aluminum oxide.
DEB37581A 1955-10-20 1955-10-20 Process for the preparation of almost colorless capsicum extracts Expired DE953904C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEB37581A DE953904C (en) 1955-10-20 1955-10-20 Process for the preparation of almost colorless capsicum extracts

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEB37581A DE953904C (en) 1955-10-20 1955-10-20 Process for the preparation of almost colorless capsicum extracts

Publications (1)

Publication Number Publication Date
DE953904C true DE953904C (en) 1956-12-06

Family

ID=6965233

Family Applications (1)

Application Number Title Priority Date Filing Date
DEB37581A Expired DE953904C (en) 1955-10-20 1955-10-20 Process for the preparation of almost colorless capsicum extracts

Country Status (1)

Country Link
DE (1) DE953904C (en)

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