Nowadays, the geographical origin of camellia oil (extra virgin) can be confirmed only by chemical analysis and documental traceability. This preliminary methodological study inquires the efficacy of chemometric analysis and gas chromatography coupled to an electronic nose to provide a rapid tool for the discrimination of camellia oil from different geographical origins. This method is appropriate for serving to support or corroborate geographical origin of camellia oil (extra virgin) based on its fingerprint of volatile profile, which is developed by using discriminant analysis and multivariate ordination technique (partial least squares discriminant analysis and principal components analysis). The results demonstrate that chemometrics combined with the electronic nose technique can be applied for fingerprinting to establish the authenticity of camellia oil (extra virgin) to prevent both quality and prestige loss of this product.

中文翻译：

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利用电子鼻特征和化学计量学鉴别山茶籽油的地理来源

如今，山茶油（特级初榨油）的地理来源只能通过化学分析和文献可追溯性来确定。这项初步的方法学研究探讨了化学计量分析和气相色谱与电子鼻耦合的功效，从而为区分不同地理来源的山茶油提供了一种快速的工具。此方法适用于基于山茶油（特级初榨油）的挥发性特征指纹图谱来支持或证实其地理起源，该指纹图谱是使用判别分析和多元排序技术（偏最小二乘判别分析和主成分分析）开发的。