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首页> 外文期刊>Journal of Agricultural and Food Chemistry >Structure-Odor Relationships of (Z)-3-Alken-1-ols, (Z)-3-Alkenals, and (Z)-3-Alkenoic Acids
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Structure-Odor Relationships of (Z)-3-Alken-1-ols, (Z)-3-Alkenals, and (Z)-3-Alkenoic Acids

机译:(Z)-3-烯烃-1-醇,(Z)-3-烯烃和(Z)-3-链烯酸的结构 - 气味关系

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摘要

(Z)-3-Unsaturated volatile acids, alcohols, and aldehydes are commonly found in foods and other natural sources, playing a vital role in the attractiveness of foods but also as compounds with chemocommunicative function in entomology. However, a systematic investigation of their smell properties, especially regarding humans, has not been carried out until today. To close this gap, the odor thresholds in air and odor qualities of homologous series of (Z)-3-alken-1-ols, (Z)-3-alkenals, and (Z)-3-alkenoic acids were determined by gas chromatography-olfactometry. It was found that the odor qualities in the series of the (Z)-3-alken-l-ols and (Z)-3-alkenals changed, with increasing chain length, from grassy, green to an overall fatty and citrus like, soapy character. On the other hand, the odor qualities of the (Z)-3-alkenoic acids changed successively from cheesy, sweaty via plastic-like, to waxy in their homologous series. With regard to their odor potencies, the lowest thresholds in air were found for (Z)-3-hexenal, (Z)-3-octenoic acid, and (Z)-3-octenal.
机译:(Z)-3-不饱和挥发性酸,醇和醛通常在食品和其他天然来源中发现,在食物的吸引力中发挥着至关重要的作用,也是具有昆虫学中的化学不管功能的化合物。然而,在今天,对他们的嗅觉属性,特别是人类的系统调查尚未进行。为了缩短这种差距,通过气体测定气体系列(Z)-3-烯烃-1-烯烃,(Z)-3-烯烃和(Z)-3-链烯酸的同源系列的空气和气味品质中的气味阈值色谱 - 嗅觉测量。结果发现,(Z)-3-烯烃-1-醇的系列中的气味品质和(Z)-3-alkeNals的变化,随着环状,绿色到整体脂肪和柑橘的增加,肥皂性格。另一方面,(Z)-3-链烯酸的气味品质连续地从俗气,通过塑料味,在其同源系列中的蜡状变化。关于它们的气味效力,发现了(Z)-3-己酮,(Z)-3-辛烯酸和(Z)-3- octenal的最低阈值。

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