“户太8号”葡萄及其冰酒特性研究  

Icewine vinification characteristics of the‘Hutai No.8’grape

作　　者：梁艳英[1] 张莉[1] 王华[1] 

机构地区：[1]西北农林科技大学葡萄酒学院,陕西省葡萄与葡萄酒工程研究中心,陕西杨凌712100

出　　处：《中国酿造》2013年第1期90-93,共4页China Brewing

基　　金：2008西安市科技创新支撑计划(NC08002)

摘　　要：监测"户太8号"葡萄果实在树挂期(生理成熟至技术成熟期)主要理化指标的变化规律发现:随着气温的下降,葡萄果实果皮皱缩,单果重由8.98g/L下降至4.95g/L,果实的出汁率也由73.2%降至57.2%,糖含量由194g/L增加到280g/L;总酸含量呈现了先增加后降低的趋势由3.76g/L增加至6.11g/L再降低至4.36g/L。根据原料特点,制定了冰葡萄酒的酿造工艺。"户太8号"葡萄冰酒,香气浓郁,口感甘甜醇厚,酒精度为8.8%vol,含糖量为199.5g/L。运用固相微萃取(SPME)技术结合气相色谱-质联用仪(GC-MS)分析"户太8号"葡萄果实和冰酒的香气成分,分别鉴定出了35种和31种香气成分。"户太8号"葡萄果实的主要香气挥发性物质是苯乙醇(34.3%)、3-羟基-2-丁酮(18.84%)、2-辛醇(9.86%)、3-甲基-1-丁醇(4.84%)、2,5-二氢噻吩(3.68%),呈现出玫瑰花香和奶油香气为主的香气特征。"户太8号"葡萄冰酒的主要香气挥发性物质是3-甲基-1-丁醇(46.05%)、2-甲基-1-丙醇(33.12%)、2,4-己二烯酸(8.11%)、苯乙醇(3.72%)、1-丙醇(2.89%),呈现出为奶酪味、苦杏仁味为主,带有少许花香的醇香香气特征。This paper studied the on-vine grape freezing effect on the composition of the ＇Hutai No.8＇ grape and its icewine product. Physically, berries are gradually dehydrated during the constant freezing process and the mean berry weight decreased from 8.98g/L to 4.95g/L, and the juice yield was from 73.2% to 57.2%. The sugar content was increased from 194g/L up to 280g/L with the weight loss, and the total acid content was in- creasesd from 3.76g/L to 6.1 lg/L, then reduced to 4.36g/L. According to the characteristics of raw materials, made of ice wine brewing process. ＇Hutai No.8＇ ice wine exhibits rich aromas, mellow tasting, and alcohol content for 8.8% vol, sugar content for 199.5g/L. Aroma components was analysed by gas chromatography-mass spectrometry, and 35 volatile compounds were identified in fruit and 35 volatile compounds in icewine.The main aroma components in fruit was Benzeneethanol（34.3%）,3-Hydroxy-2-butanone （18.84%）, 2-Octanol （9.86%）, 3-Methyl-l-butanol （4.84%）, 2, 5-Dihydro- thiophene （3.68%）, and presents the characteristics aroma with the rose and thr cream .The main aroma components in icewine was 3-Methyl-I-butanol（46.05%）, 2-Methyl-l-propanol（33.12%）, 2,4-Hexadienoic acid（8.11%）, Benzeneethanol（3.72%）, 1-Propanol（2.89%）, and pre- sents the characteristics aroma with the cheese and the bitter almond ,and with a little sweet fragrance bouquet.

关 键 词：“户太8号”葡萄 冰酒 香气 

分 类 号：TS262.2[轻工技术与工程—发酵工程]