基于核磁共振分析新疆不同杏果的化学成分差异

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中图分类号：S662.2 文献标识码：A文章编号：1673-9868（2025）10-0039-11

Abstract：To characterise thequality diversity and potential diferences in nutrient composition of apricot fruits of the main cultivars in Xinjiang production areas （small white apricot of Aksu production area， large white apricot of Bayin'guoleng Mongol Autonomous Prefecture，Mukyu apricot of Hotan production area，Saimaiti apricot of Kashgar production area， Tasi apricot of Turfan production area，and on-tree dried apricot of Ii Kazakh Autonomous Prefecture production area）. In this study，Nuclear Magnetic Resonance（NMR） technology was employed for Nuclear Magnetic Resonance Hydrogen Spectroscopy （ 1H -NMR）analysis and identification of pulp of Xinjiang main apricot varieties. Main chemical components in attributive spectra was clarified，and the nutritional quality of pulp of Xinjiang main apricot varieties was comprehensively evaluated with principal component analysis and least square discriminant analysis. The multivariate statistical analysis showed that the nutritional quality of apricot fruit of Xinjiang's main planted varieties had a better overall separation. 1H -NMR showed that compared with other production areas，the chemical component signals of Tashi apricot in Turfan production area were obviously more. Seven chemical components with large contributions to the diferences were screened out，namely histidine，lysine，arginine，serine，glutamine，sucrose and D -fructose. In small white apricots of Aksu， the contents of serine and lysine in the chemical composition were higher. In large white apricots from Bayin'guoleng Autonomous Prefecture，the contents of lysine，glutamine， D -fructose and histidine in the chemical composition were higher. In Mukyu apricots of Hotan and Saimaiti apricots of Kashgar，the contents of histidine and sucrose in the chemical composition were higher，and in Tasi apricots from Turfan， the contents of arginine，serine，lysine and glutamine in the chemical composition were higher.Histidine， sucrose and D -fructose were found to be more abundant in the chemical composition of on-tree dried apricots from Ili Kazakh Autonomous Prefecture.

Key words： apricot fruit； nuclear magnetic resonance;chemical compositional differences

杏子（Prunus armeniaca L.）属于蔷薇科杏属落叶乔木，果实一般呈圆形或卵圆形，口味酸甜，营养丰富，含有大量的糖、有机酸、胡萝卜素和糖苷[1-3]。（剩余10398字）