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首页> 外文期刊>BIO Web of Conferences >Determination and elimination of rotten grape aroma by filter layers with selective adsorbers
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Determination and elimination of rotten grape aroma by filter layers with selective adsorbers

机译：用选择性吸附剂过滤层测定和消除葡萄腐烂的香气

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The most important mould associated substances like geosmine, 2-methylisoborneol, 1-octen-3-ol in wines of different grape varieties from Austria and also from other foreign countries were analysed by a HS-SPME GC-MS method. These substances were also determined in healthy and rotten grapes. All together, 391 wine-samples and 69 grape samples were examined.The study of rotten and healthy grapes found out a level of geosmin up to 20 ng/L, 1-octene-3-ol concentration up to 700?μg/L and 2-heptanol level up to 9?μg/L. The geosmin concentration of the 391 analyzed wines extended from 1-44?ng/L. The detected level of 1-octene-3-ol ranged from 1?μg/L to 23?μg/L. The determined concentration of 2-heptanol ranged from 1?μg/L up to 38?μg/L. The test with the filter layer Fibrafix TX-R was performed with nine layers á 20 × 20?cm (3.6?m~(2)) and a quantity of 625 liters wine. The filtering achieved a significant reduction of the start concentration of 60?ng/L geosmin down to only 6?ng/L (average value of 600l).
机译：通过HS-SPME GC-MS方法分析了奥地利和其他国家/地区的不同葡萄品种的葡萄酒中最重要的霉菌相关物质，如土壤胺，2-甲基异冰片醇，1-辛烯-3-醇。在健康和腐烂的葡萄中也测定了这些物质。总共检查了391份葡萄酒样品和69份葡萄样品。对腐烂和健康葡萄的研究发现，土臭素的水平最高为20 ng / L，1-辛烯-3-醇的浓度最高为700？μg/ L， 2-庚醇水平高达9？μg/ L。 391种分析葡萄酒的土臭素浓度从1-44ng / L扩展。检测到的1-辛烯-3-醇含量为1？μg/ L至23？μg/ L。测定的2-庚醇浓度范围为1？μg/ L至38？μg/ L。使用9层á20×20？cm（3.6？m〜（2））和625升葡萄酒对过滤层Fibrafix TX-R进行了测试。过滤使起始浓度从60？ng / L土臭味素显着降低到仅6？ng / L（平均值为600l）。

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