Abstract

Citrus fruits are very popular food products. There are many species and varieties of them. There are also documented cases of some citrus fruits causing a severe allergic reaction. Some species of the citrus fruits, especially hybrid ones show a reduced allergenic effect due to the lack of seeds. There is a need for rapid methods for evaluation of citrus’ botanical origin. During research, the headspace of three citrus fruits Citrus Aurantifolia, Citrus japonica, and Citrus × floridana was analysed using electronic nose based on ultrafast gas chromatography and gas chromatography with mass spectrometry. In the paper, two approaches were compared. The usefulness of an electronic nose to control the quality of hybrids was demonstrated. The results obtained during ultrafast gas chromatography analyses were subjected to statistical analysis. Four chemometric methods namely: principal component analysis (PCA), discriminant function analysis (DFA), soft independent modeling of class analogies (SIMCA), statistical quality control (SQC) were used to distinguish between limequat and its parent fruits. Electronic nose combined with chemometrics is a novel analytical tool for hybrid fruits’ classification due to their botanical origin. It can supplement established techniques by providing results in a short time and at a low cost.

Graphical abstract

中文翻译：

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使用电子鼻和气相色谱-质谱联用快速评估酸橙果实的真伪。

摘要

柑橘类水果是非常受欢迎的食品。它们的种类和品种很多。也有一些柑橘类水果引起严重过敏反应的记录案例。一些柑橘类水果，尤其是杂交柑橘类水果，由于缺乏种子而表现出降低的过敏作用。需要快速的方法来评估柑橘的植物来源。在研究期间，三种柑橘类水果Citrus Aurantifolia、Citrus japonica和Citrus  ×  floridana的顶部空间使用基于超快气相色谱和质谱气相色谱的电子鼻进行分析。在论文中，比较了两种方法。证明了电子鼻对控制杂交种质量的有用性。对超快气相色谱分析期间获得的结果进行统计分析。四种化学计量学方法，即：主成分分析（PCA）、判别函数分析（DFA）、类比软独立建模（SIMCA）、统计质量控制（SQC）用于区分柠檬草及其亲本果实。由于其植物来源，电子鼻结合化学计量学是一种用于杂交水果分类的新型分析工具。它可以通过在短时间内以低成本提供结果来补充已建立的技术。

图形概要