Warianty tytułu
Języki publikacji
Abstrakty
Alkohol heksylowy i jego pochodne (związki C6 przyczyniają się do ostrego, trawiastego smaku oraz zapachu napojów alkoholowych. Prekursorem komponentów C6 jest kwas linolowy i linolenowy, które występują w zielonych częściach roślin, niedojrzałych owocach, warzywach i zbożach. Biokonwersja tych kwasów do odpowiednich aldehydów i alkoholi odbywa się przy udziale enzymów (lipooksygenaza, oksydoreduktaza alkoholowa i liaza aldehydowa), które zawarte są w surowcach roślinnych i mikroorganizmach. W celu zmniejszenia zawartości związków C6 w napojach alkoholowych należy eliminować z przerobu surowce niedojrzałe, zielone części roślin oraz ograniczyć napowietrzenie w czasie ich rozdrabniania. Dodatek SO2 oraz kwasu askorbinowego wpływa hamująco na tworzenie heksanolu podczas obróbki owoców, ich maceracji oraz fermentacji.
Hexyl alcohol and its derivatives (C6 compounds) contribute to acute grassy taste and flavour of alcoholic beverages. Precursors of C6 compounds are linoleic and linolenic acids that are present in green parts of plants, unripe fruits, vegetables and cereals. Bioconversion of these acids into aldehydes and alcohols is catalysed by the enzymes (lipooxygenase, alcohol dehydrogenase and aldehyde lyase) which are present in raw plant material and microorganisms. In order to reduce the content of C6 compounds in alcoholic beverage, the use of unripe raw materials, green plant tissue and excessive aeration during grinding should be eliminated from processing. Addition of SO2, and ascorbic acid inhibits formation of hexanol during processing of fruits and their fermentation.
Wydawca
Czasopismo
Rocznik
Tom
Numer
Strony
18-21
Opis fizyczny
s.18-21,rys.,tab.,bibliogr.
Twórcy
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
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