Yue Zhang , Hui Zhi , Liuqing Qu , Dehu Su , Jianrang Luo
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引用次数: 0
摘要
花香作为树牡丹的重要观赏特征之一，一直备受关注。本研究根据感官评价得分将 65 个树牡丹栽培品种分为三组：浓香型、中等香型和无/淡香型，并选择了 9 个浓香型栽培品种、6 个中等香型栽培品种和 2 个淡香/无香型栽培品种进行物质分析。利用气相色谱-质谱法（GC-MS）对 17 个牡丹品种中的 77 种挥发性有机化合物（VOCs）进行了鉴定和分类，它们分别是萜类化合物、苯类化合物/苯丙类化合物和脂肪酸衍生物。单萜是'Souvenir de Maxime Cornu'、'Okan'、'Chromatella'、'Yapianzi'和'Liuli Guanzhu'等品种的主要挥发性化合物，而苯并类/苯丙类则是'Shaonvqun'和'Binglingzi'等品种的主要挥发性化合物。通过气味活性值（OAV）的计算，17 个栽培品种被分为四类：花甜香型、花玫瑰香型、草本香型和混合香型。这项研究展示了 17 个树牡丹栽培品种的芳香化合物组成和分类，并根据花香挥发物对整体嗅觉体验的贡献对气味特征进行了分类，为树牡丹花香的遗传改良提供了宝贵的材料。
Analysis of flower volatile compounds and odor classification of 17 tree peony cultivars
As one of the significant ornamental characteristics of tree peony, floral fragrance has garnered considerable attention. In this study, 65 cultivars of tree peony were classified into three groups based on their sensory evaluation scores: strong fragrance, medium fragrance, and no/light fragrance and 9 strong fragrance cultivars, 6 medium fragrance cultivars, and 2 light/no fragrance cultivars were selected for substance analysis. Using gas chromatography-mass spectrometry (GC–MS), 77 volatile organic compounds (VOCs) were identified and classified from 17 tree peony cultivars, they were terpenoids, benzenoids/phenylpropanoids, and fatty acid derivatives. Monoterpenoids were the main volatile compounds in the cultivars ‘Souvenir de Maxime Cornu’, ‘Okan’, ‘Chromatella’, ‘Yapianzi’, and ‘Liuli Guanzhu’, while benzenoids/phenylpropanoids were the main volatile compounds in ‘Shaonvqun’ and ‘Binglingzi’. Through the calculation of odor activity value (OAV), 17 cultivars were categorized into four distinct groups: flower-sweet scent, flower-rose scent, herb scent and mixed scent. This investigation presented the composition and classification of fragrant compounds of 17 tree peony cultivars and classified the odor profiles based on the contribution of flower volatiles to the overall olfactory experience, offering valuable materials for genetic enhancement of tree peony floral fragrance.
期刊介绍：
Scientia Horticulturae is an international journal publishing research related to horticultural crops. Articles in the journal deal with open or protected production of vegetables, fruits, edible fungi and ornamentals under temperate, subtropical and tropical conditions. Papers in related areas (biochemistry, micropropagation, soil science, plant breeding, plant physiology, phytopathology, etc.) are considered, if they contain information of direct significance to horticulture. Papers on the technical aspects of horticulture (engineering, crop processing, storage, transport etc.) are accepted for publication only if they relate directly to the living product. In the case of plantation crops, those yielding a product that may be used fresh (e.g. tropical vegetables, citrus, bananas, and other fruits) will be considered, while those papers describing the processing of the product (e.g. rubber, tobacco, and quinine) will not. The scope of the journal includes all horticultural crops but does not include speciality crops such as, medicinal crops or forestry crops, such as bamboo. Basic molecular studies without any direct application in horticulture will not be considered for this journal.
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