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Preparation of novel distinct highly aromatic liquors using fruit distillates
Authors:Ludovina R Galego  José P Da Silva  Valentim R Almeida  Maria R Bronze  Luís V Boas
Affiliation:1. Instituto Superior de Engenharia, Universidade do Algarve, Campus da Penha, 8005‐139 Faro, Portugal;2. Faculdade de Ciências e Tecnologia, Universidade do Algarve, Campus de Gambelas, 8005‐139 Faro, Portugal;3. Instituto de Tecnologia Química e Biológica, Quinta do Marquês – Apt 127, 2780‐505 Oeiras, Portugal
Abstract:This work describes the preparation of aromatised liquors using deodorised and concentrated fruit distillates. The raw spirits were improved by making a partial deodorisation, using activated charcoal, followed by concentration, using a distiller. The liquors were prepared by a maceration process. The procedure is exemplified using fig distillates to prepare myrtle berry liquors. The acidity, copper, polyphenol and anthocyanin indexes and volatile and anthocyanin profiles were monitored in each preparation step. The concentration process increased the ethanol proof to 75% v/v and decreased the acidity and the copper content. The partial deodorisation decreased the levels of high molecular weight volatiles, while the content of lower molecular weight compounds that contribute to flavour was maintained. Delphinidin‐3‐O‐glucoside, cyanidin‐3‐O‐glucoside, petunidin‐3‐O‐glucoside and malvidin‐3‐O‐glucoside were the major anthocyanins.
Keywords:Anthocyanins  food processing aspects  food processing chemistry  food quality  GC/MS  HPLC
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