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首页> 外文期刊>Journal of the Institute of Brewing >Aroma compounds in barrel aged apple distillates from two different distillation techniques
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Aroma compounds in barrel aged apple distillates from two different distillation techniques

机译：桶中的香气化合物从两种不同的蒸馏技术中馏分

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摘要

The major fermentation and maturation related congeners in apple distillates from two different distillation techniques (alembic and column), matured in oak for 18 months, were measured by GC-MS and HPLC. Together with a higher ethanol content, column distillates had higher ethyl acetate, methanol and n-propanol levels compared with alembic distillates. A higher content of acetaldehyde was characteristic of the alembic distillates. The concentrations of i-butanol, n-butanol, amyl alcohols and n-hexanol were not affected by the distillation technique used. Increasing the ageing time of distillates in oak resulted in an increase in the contents of acetaldehyde, ethyl acetate and amyl alcohols while the content of methanol decreased during ageing. Throughout ageing, there were no significant changes in the concentrations of n-propanol, i-butanol, n-butanol and n-hexanol. Among the maturation related compounds, gallic acid, ellagic acid, vanillin and syringaldehyde were determined in apple distillates with ellagic acid being the most abundant. The contents of gallic acid and ellagic acid increased during ageing whereas vanillin and syringaldehyde slightly increased throughout the 18 months of maturation. (C) 2019 The Institute of Brewing & Distilling
机译：通过GC-MS和HPLC测量，苹果中的主要发酵和成熟相关的同次从两种不同的蒸馏技术（ALEMBIC和柱）馏出18个月。与羟基馏分的氨酸馏分，塔馏分与丙酸盐相比，塔馏出溶液馏分较高。乙醛的含量较高是Alembic馏分的特征。 I-丁醇，正丁醇，戊醇和正六醇的浓度不受所用蒸馏技术的影响。增加橡木中馏分的老化时间导致乙醛，乙酸乙酯和戊醇的含量增加，而甲醇含量在老化过程中降低。在整个衰老过程中，N-丙醇，叔丁醇，正丁醇和正己醇的浓度没有显着变化。在成熟的相关化合物中，在苹果馏分中测定了无碱酸，鞣酸，香草醛和掺量醛，其鞣花酸是最丰富的。老化期间，加仑酸和鞣花酸的含量增加，而Vanillin和Syringehyde在成熟的18个月内略微增加。 （c）2019年酿造和蒸馏学院

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