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Visualizing the Distribution of Jujube Metabolites at Different Maturity Stages Using Matrix-Assisted Laser Desorption/Ionization Mass Spectrometry Imaging

文献类型： 外文期刊

作者： Lu, Dongye 1 ; Wu, Yang 1 ; Zhang, Junmin 5 ; Qi, Yuanyong 1 ; Zhang, Yuping 1 ; Pan, Qinghua 1 ;

作者机构： 1.Beijing Acad Agr & Forestry Sci, Inst Forestry & Pomol, Beijing 100093, Peoples R China

2.Minist Agr & Rural Affairs, Key Lab Biol & Genet Improvement Hort Crops North, Beijing 100093, Peoples R China

3.Beijing Engn Res Ctr Deciduous Fruit Trees, Beijing 100093, Peoples R China

4.Minist Agr & Rural Affairs, Key Lab Urban Agr North China, Beijing 100093, Peoples R China

5.Beijing Municipal Forestry & Pk Buteau, Beijing Forestry Workstat, Beijing 100013, Peoples R China

关键词： Ziziphus jujuba; mass spectrometry imaging; spatial distribution; fruit quality

期刊名称：FOODS （ 影响因子：5.2； 五年影响因子：5.5 ）

ISSN：

年卷期： 2023 年 12 卷 20 期

页码：

收录情况： SCI

摘要： Chinese jujube (also called Chinese date, Ziziphus jujuba Mill.) is an economically important tree in China and provides a rich source of sugars, vitamins, and bioactive components, all of which are indispensable and essential for the composition and participation in life processes of the human body. However, the location of these metabolites in jujube fruits has not been determined. This study applied matrix-assisted laser desorption/ionization mass spectrometry imaging (MALDI-MSI) to investigate the spatial distribution of sugars, organic acids, and other key components in jujube fruits at different developmental periods. Soluble sugars such as hexoses and sucrose/maltose significantly increase with fruit ripening, while organic acids show an overall trend of initially increasing and then decreasing. Procyanidins and rutin exhibit specific distributions in the fruit periphery and peel. These findings suggest that MALDI-MSI can be used to study the spatial distribution of nutritional components in jujube fruits, providing insights into the changes and spatial distribution of substances during jujube fruit development. This technique offers a scientific basis for jujube breeding, utilization, and production.

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