Cai Wenjing, Zhou Wei, Liu Jiayao, Wang Jing, Kuang Ding, Wang Jian, Long Qing, Huang Dan
The First Hospital of Hunan University of Chinese Medicine, Hunan University of Chinese Medicine, Changsha 410007, China.
State Key Laboratory of Chinese Medicine Powder and Medicine Innovation in Hunan (Incubation), Science and Technology Innovation Center, Hunan University of Chinese Medicine, Changsha 410208, China.
Metabolites. 2024 Aug 11;14(8):445. doi: 10.3390/metabo14080445.
Gardenia fruit is a popular functional food and raw material for natural pigments. It comes from a wide range of sources, and different products sharing the same name are very common. Volatile organic compounds (VOCs) are important factors that affect the flavor and quality of gardenia fruit. This study used the Heracles NEO ultra-fast gas phase electronic nose with advanced odor analysis performance and high sensitivity to analyze six batches of gardenia fruit from different sources. This study analyzed the VOCs to find a way to quickly identify gardenia fruit. The results show that this method can accurately distinguish the odor characteristics of various gardenia fruit samples. The VOCs in gardenia fruit are mainly organic acid esters, ketones, and aldehyde compounds. By combining principal component analysis (PCA) and discriminant factor analysis (DFA), this study found that the hexanal content varied the most in different gardenia fruit samples. The VOCs allowed for the fruit samples to be grouped into two main categories. One fruit sample was quite different from the fruits of other origins. The results provide theoretical support for feasibility of rapid identification and quality control of gardenia fruit and related products in the future.
栀子果实是一种受欢迎的功能性食品和天然色素的原料。它来源广泛，不同产品同名的情况很常见。挥发性有机化合物（VOCs）是影响栀子果实风味和品质的重要因素。本研究使用具有先进气味分析性能和高灵敏度的Heracles NEO超快速气相电子鼻，对六批不同来源的栀子果实进行分析。本研究通过分析挥发性有机化合物来寻找快速鉴定栀子果实的方法。结果表明，该方法能够准确区分各种栀子果实样品的气味特征。栀子果实中的挥发性有机化合物主要是有机酸酯、酮类和醛类化合物。通过结合主成分分析（PCA）和判别因子分析（DFA），本研究发现己醛含量在不同栀子果实样品中变化最大。挥发性有机化合物使果实样品可分为两大类。一个果实样品与其他来源的果实有很大不同。研究结果为未来栀子果实及相关产品快速鉴定和质量控制的可行性提供了理论支持。
