不同品种甘蔗汁酿造的银朗姆酒中杂醇油含量测定

为探索酿酒原料对银朗姆酒中杂醇油含量的影响，采用冷汁生石灰澄清法对甘蔗汁进行处理，经18 ℃低 温发酵和蒸馏后，选取中间蒸馏组分，调配成40%（V/V）的基础酒，利用气相色谱法进行分析。结果显示：银 朗姆酒中异戊醇含量最高，占杂醇油总量的46.70%～63.22%；其次为正丙醇和异丁醇，分别占20.26%～36.08%和 14.47%～15.87%；正丁醇和正戊醇含量较低。6 种蔗汁原料酒中，大黑熊品种的银朗姆酒中杂醇油含量最高，达到 389.54 mg/L，其次是蔗94128（316.91 mg/L）、台优（312.27 mg/L）、粤00236（295.83 mg/L），含量较低的为台 22（254.76 mg/L）和桂00122（239.48 mg/L）。本方法可快速、准确检测银朗姆酒中杂醇油的含量，用以选择适宜 酿酒的甘蔗品种。

Determination of Fusel Oil Contents in Silver Rums Fermented from Sugarcane Juice from Six Different Varieties

In order to investigate the effect of raw material sources on the contents of fusel oils in silver rum, after cold
juice lime clarification, low-temperature fermentation at 18 ℃ and distillation, the intermediate fraction of silver rum
was collected and then mixed into 40% (V/V) basic rum. The samples were analyzed by gas chromatography (GC). The
results indicated that isoamyl alcohol was the most abundant component in fusel oil of silver rum, which accounted for
46.70%–63.22% of the total fusel oil. The contents of propanol and isobutanol were 20.26%–36.08% and 14.47%–15.87%,
respectively. The contents of butanol and pentanol were relatively lower in silver rum. Among six sugarcane varieties, the
rum made from Daheixiong variety had the highest content of fusel oil (389.54 mg/L), followed by Zhe 94128 (316.91 mg/L),
Taiyou (312.27 mg/L), Yue 00236 (295.83 mg/L), Tai 22 (254.76 mg/L) and Gui 00122 (239.48 mg/L). These results may
provide a scientific and technical basis to analyze the fusel oil content in silver rum and select suitable sugarcane varieties
for the production of high-quality rum.