Aroma analysis of grape berries can provide support for the breeding of new varieties and increase economic value. In order to preliminarily explore and screen the berry aroma characteristics of 191 grape germplasm resources, the electronic nose detection method was used to analyze the berry aroma characteristics. The clustering results of 10 sensors showed that the aroma types of grape berries could be identified. The first category (I) contains 139 germplasm; The second group (II) contains 32 germplasms; The third group (III) contains four germplasms; The fourth group (IV) and the fifth group (V)include 8 germplasm. The berry aroma of cluster I, II, IV and V was significantly different from that of cluster III, mainly manifested by the significant difference in the response values of W1S (methane), W2S (alcohols) and W5S (nitrogen oxides). The W1S, W2S and W5S sensors, as well as the W2W (aromatic components and organic sulfides) aroma sensors show high response values for 'Ayaneskeal' and 'Urbana', indicating a strong aroma. The results of this study preliminarily elucidates the aroma differences among different grape germplasms, providing a data basis for the selection of grape germplasms with distinct aroma, which will be used as a source to obtain new varieties with aromatic value for the production of grapes for fresh consumption and beverages, such as wine. It also provided data basis for the establishment of grape germplasm resource bank.

中文翻译：

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基于电子鼻检测的葡萄浆果香气谱分析


葡萄浆果香气分析可为新品种选育提供支持，提高经济价值。为初步探索和筛选191份葡萄种质资源的浆果香气特征，采用电子鼻检测方法对浆果香气特征进行分析。 10个传感器的聚类结果表明，可以识别葡萄浆果的香气类型。第一类（I）包含139份种质资源；第二组（II）包含32份种质资源；第三组（III）包含四种种质；第四组（IV）和第五组（V）包括8份种质资源。簇I、II、IV、V的浆果香气与簇III存在显着差异，主要表现为W1S（甲烷）、W2S（醇类）和W5S（氮氧化物）响应值存在显着差异。 W1S、W2S 和 W5S 传感器以及 W2W（芳香成分和有机硫化物）香气传感器对“Ayaneskeal”和“Urbana”表现出较高的响应值，表明香气浓郁。本研究结果初步阐明了不同葡萄种质之间的香气差异，为筛选具有独特香气的葡萄种质提供了数据依据，为生产鲜用葡萄提供了获得具有芳香价值的新品种的来源。消费和饮料，例如酒。也为葡萄种质资源库的建立提供了数据基础。