SE440366B - Means for counteracting foam formation during the fermentation of a wort when brewing olives and preparing to produce the same - Google Patents

Means for counteracting foam formation during the fermentation of a wort when brewing olives and preparing to produce the same

Info

Publication number
SE440366B
SE440366B SE7905087A SE7905087A SE440366B SE 440366 B SE440366 B SE 440366B SE 7905087 A SE7905087 A SE 7905087A SE 7905087 A SE7905087 A SE 7905087A SE 440366 B SE440366 B SE 440366B
Authority
SE
Sweden
Prior art keywords
ethanol
wort
fermentation
brewing
olives
Prior art date
Application number
SE7905087A
Other languages
Swedish (sv)
Other versions
SE7905087L (en
Inventor
F B Knudsen
Gheluwe G E A Van
R L Weaver
M Dadic
Original Assignee
Molson Co Ltd
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 Molson Co Ltd filed Critical Molson Co Ltd
Publication of SE7905087L publication Critical patent/SE7905087L/en
Publication of SE440366B publication Critical patent/SE440366B/en

Links

Classifications

    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12CBEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C11/00Fermentation processes for beer
    • C12C11/003Fermentation of beerwort
    • CCHEMISTRY; METALLURGY
    • C12BIOCHEMISTRY; BEER; SPIRITS; WINE; VINEGAR; MICROBIOLOGY; ENZYMOLOGY; MUTATION OR GENETIC ENGINEERING
    • C12CBEER; PREPARATION OF BEER BY FERMENTATION; PREPARATION OF MALT FOR MAKING BEER; PREPARATION OF HOPS FOR MAKING BEER
    • C12C1/00Preparation of malt
    • C12C1/18Preparation of malt extract or of special kinds of malt, e.g. caramel, black malt

Landscapes

  • Engineering & Computer Science (AREA)
  • Organic Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Bioinformatics & Cheminformatics (AREA)
  • Biochemistry (AREA)
  • General Engineering & Computer Science (AREA)
  • General Health & Medical Sciences (AREA)
  • Genetics & Genomics (AREA)
  • Health & Medical Sciences (AREA)
  • Wood Science & Technology (AREA)
  • Zoology (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)
  • Preparation Of Compounds By Using Micro-Organisms (AREA)

Description

7905087-s_ av drav från en försöksanläggning, varvid vätskan frånskildes genom ett manuellt utövat tryck. Ett koncentrat framställdes medelst en roterande evaporator och återstoden extraherades med en blandning av metanol och kloroform i proportionen 1:1. 7905087-s_ of draft from a test plant, whereby the liquid was separated by a manually applied pressure. A concentrate was prepared by a rotary evaporator and the residue was extracted with a mixture of methanol and chloroform in the ratio 1: 1.

Efter en tredubbel extrahering filtrerades extraktet genom ett grovfilter och koncentrerades till en oljig emulsion. Denna suspenderades i vatten och prövades som antiskummedel i jäs- ningsprocesser, vilka genomfördes i rör med rymden 2,5 l och innerdiametern 5 cm. Det visade sig, att l ml av detta anti- skummedel minskade skumskiktets höjd till 3 cm från 16 cm, som erhölls vid ett kontrollexperiment.After a triple extraction, the extract was filtered through a coarse filter and concentrated to an oily emulsion. This was suspended in water and tested as an antifoam agent in fermentation processes, which were carried out in tubes with a capacity of 2.5 l and an inner diameter of 5 cm. It was found that 1 ml of this antifoam reduced the height of the foam layer to 3 cm from 16 cm obtained in a control experiment.

Försök att tillreda ett antiskummedel med användande av effluenten från en industriell dravpress misslyckades, i det att man erhöll en oljig emulsion utan skummotverkande egenskaper. En analys utvisade, att de flesta fettsyrorna var mättade, under det att det medel som erhölls enligt experimen- tet i föregående stycke visade sig innehålla en relativt hög procenthalt av omättade fettsyror.Attempts to prepare an antifoam using the effluent from an industrial drag press failed in obtaining an oily emulsion without antifoam properties. An analysis showed that most of the fatty acids were saturated, while the agent obtained according to the experiment in the previous paragraph was found to contain a relatively high percentage of unsaturated fatty acids.

Två jäsningsprocesser genomfördes i en experiment- anläggning, varvid antiskummedlet tillfördes det ena badet men ej det andra, vilket användes såsom.kontroll. Liknande skumvärden erhölls i båda fallen, men det öl som framställts med antiskummedlet visade sig innehålla 3 ppm högre halt av bitterämnen och hade också bättre kylstabilitet.Two fermentation processes were carried out in an experimental plant, the antifoam being added to one bath but not the other, which was used as a control. Similar foam values were obtained in both cases, but the beer prepared with the antifoam turned out to contain 3 ppm higher content of bitter substances and also had better cooling stability.

Den uppenbara olägenheten med ett sådant antiskummedel är att det ej kan användas i öl, eftersom detta då visade sig innehålla spår av kloroform och av metanol.The obvious disadvantage of such an antifoam is that it cannot be used in beer, as it was then found to contain traces of chloroform and of methanol.

När mald malt extraherades med 95%-ig etanol vid 5000, erhölls ett antiskummedel, som däremot kan användas vid brygg- ning av öl. Extraktionen är mycket enkel. Den malda malten extraheras med 95%-ig etanol, varpå den erhållna gulgröna vätskan koncentreras vid reducerat tryck och suspenderas i vatten. Vid experiment med i handeln förekommande malt erhölls approximativt 4% extraherbara ämnen. 'zsosoaà-š Det antiskummedel som erhålls vid extraktion av mald malt med etanol är ca. 5 gånger mer verksamt än ett antiskum- medel tillverkat av drav, uttryckt i skumskiktets höjd. Medlet innehåller en hög halt av omättade fettsyror samt några fenol- föreningar och lipoproteiner. Vid försök i kommersiell skala kunde endast 25% av den malda malten extraheras med alkohol och införas i draven, eftersom högre proportioner visade sig drastiskt försämra omvandlingsprocessen. Det bör observeras, att extraktion av endast 25% av den malda malten ger ett till- räckligt utbyte av antiskummedel för flera jäsningar. Om extraktet utsätts för oxidation, avtar den antiskumbildande verkan kraftigt. En fördel med att extrahera åtminstone en del av den malda malten med etanol består i en minskad bild- ning av förstadieföreningar till trans-2-nonenal.When ground malt was extracted with 95% ethanol at 5000, an antifoam agent was obtained which, on the other hand, can be used in brewing beer. The extraction is very simple. The ground malt is extracted with 95% ethanol, whereupon the yellow-green liquid obtained is concentrated under reduced pressure and suspended in water. In experiments with commercially available malt, approximately 4% of extractable substances were obtained. 'zsosoaà-š The antifoam agent obtained by extraction of ground malt with ethanol is approx. 5 times more effective than an antifoam made of draft, expressed in the height of the foam layer. The product contains a high content of unsaturated fatty acids as well as some phenolic compounds and lipoproteins. In commercial scale experiments, only 25% of the ground malt could be extracted with alcohol and introduced into the drafts, as higher proportions were found to drastically impair the conversion process. It should be noted that extraction of only 25% of the ground malt gives a sufficient yield of antifoam for several fermentations. If the extract is subjected to oxidation, the antifoam-forming effect decreases sharply. An advantage of extracting at least a portion of the ground malt with ethanol consists in a reduced formation of precursor compounds to trans-2-nonenal.

Den etanol som används för extraheringen skall ha en koncentration av över 75%. Vid försök med 50-75%-ig etanol er- hölls en klibbig massa ur vilken lösningsmedlet ej kunde åter- vinnas. Användning av andra polära lösningsmedel, exempelvis propanol eller aceton (som för övrigt ej kan användas i livs- medel), gav ej bättre resultat och enzyminhiberingen blir un- gefär densamma som vid användning av etanol.The ethanol used for the extraction must have a concentration of more than 75%. In experiments with 50-75% ethanol, a sticky mass was obtained from which the solvent could not be recovered. The use of other polar solvents, for example propanol or acetone (which otherwise cannot be used in food), did not give better results and the enzyme inhibition is about the same as when using ethanol.

Den malda malten kan extraheras med etanol enligt mot- strömsprincipen och i en kontinuerlig process med användning av en skruvextraktor med ett finmaskigt nät. Att separera den varma etanolen från den malda malten är enkelt. Etanolen kan återvinnas från jäsningsgasen och regenereras i samma destil- lationsapparat. Förlusten av lösningsmedel kan beräknas uppgå till 5% och den etanol som återvinns vid jäsningen uppväger denna förlust.The ground malt can be extracted with ethanol according to the countercurrent principle and in a continuous process using a screw extractor with a fine mesh net. Separating the hot ethanol from the ground malt is easy. The ethanol can be recovered from the fermentation gas and regenerated in the same distillation apparatus. The loss of solvent can be estimated to be 5% and the ethanol recovered during fermentation outweighs this loss.

Claims (5)

'7905087-8 Patentkrav'7905087-8 Patent claims 1. Medel för motverkande av skumbildning under jäsning av en vört vid bryggning av öl, k ä n n e t e c k n a t av att detsamma består av ett extrakt, framställt genom att mald malt extraherats med etanol med en koncentration över 75%.Agents for counteracting foaming during the fermentation of a wort when brewing beer, characterized in that it consists of an extract, prepared by extracting ground malt with ethanol having a concentration of more than 75%. 2. Sätt att tillverka ett medel enligt krav 1, k ä n - n e t e c k n a t av att mald malt extraheras med etanol med en koncentration, som överstiger 75%, varefter det så erhållna etanolextraktet koncentreras till bildande av antiskummedlet.2. A method of making an agent according to claim 1, characterized in that ground malt is extracted with ethanol having a concentration exceeding 75%, after which the ethanol extract thus obtained is concentrated to form the antifoam agent. 3. Sätt att tillverka ett medel enligt krav 2, k ä n - n e t e c k n a t av att den malda malten extraheras med 95%-ig etanol vid 5o°c.3. A method of making an agent according to claim 2, characterized in that the ground malt is extracted with 95% ethanol at 50 ° C. 4. Sätt att tillverka ett medel enligt krav 3, k ä n - n e t e c k n a t av att extraktionen genomföras i en skruvextraktor enligt motströmsprincipen.4. A method of manufacturing an agent according to claim 3, characterized in that the extraction is carried out in a screw extractor according to the countercurrent principle. 5. Sätt att använda ett medel enligt krav 2, k ä n - n e t e c k n a t av att det koncentrerade etanolextrak- tet tillföres en vattensuspension och därefter vörten.5. A method of using an agent according to claim 2, characterized in that the concentrated ethanol extract is added to an aqueous suspension and then the wort.
SE7905087A 1978-10-30 1979-06-11 Means for counteracting foam formation during the fermentation of a wort when brewing olives and preparing to produce the same SE440366B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA314,812A CA1093485A (en) 1978-10-30 1978-10-30 Anti-foaming agent and process for producing same

Publications (2)

Publication Number Publication Date
SE7905087L SE7905087L (en) 1980-05-01
SE440366B true SE440366B (en) 1985-07-29

Family

ID=4112751

Family Applications (1)

Application Number Title Priority Date Filing Date
SE7905087A SE440366B (en) 1978-10-30 1979-06-11 Means for counteracting foam formation during the fermentation of a wort when brewing olives and preparing to produce the same

Country Status (8)

Country Link
BE (1) BE874486A (en)
CA (1) CA1093485A (en)
DE (1) DE2932573A1 (en)
DK (1) DK457479A (en)
FR (1) FR2440399A1 (en)
GB (1) GB2032952B (en)
MX (1) MX5641E (en)
SE (1) SE440366B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2297689B (en) * 1995-02-07 1997-04-02 Nuway Matting Systems Inc Floor covering
GB201113555D0 (en) 2011-08-05 2011-09-21 Barth Innovations Ltd Antifoam agents

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE344668B (en) * 1966-05-14 1972-05-02 J Sato
GB1474054A (en) * 1974-07-24 1977-05-18 Pollock J Reducing the formation of stale flavour precursors in beer production

Also Published As

Publication number Publication date
BE874486A (en) 1979-06-18
GB2032952B (en) 1983-03-23
SE7905087L (en) 1980-05-01
FR2440399A1 (en) 1980-05-30
MX5641E (en) 1983-11-23
CA1093485A (en) 1981-01-13
GB2032952A (en) 1980-05-14
DK457479A (en) 1980-05-01
DE2932573A1 (en) 1980-05-22
FR2440399B1 (en) 1983-06-24

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