Physicochemical properties, content, composition and partial least squares models of A. trifoliata seeds oil

Physicochemical properties, oil content, and fatty acids (FAs) composition are key for determining the value of oil crops. The aim of this study was to illustrate the potential of exploiting A. trifoliata as an edible oil crop, and establish a rapid measurement model for the A. trifoliata seeds oil (ASO) content and composition. In 130 A. trifoliata germplasms, the highest content of ASO was 51.27%, and unsaturated fatty acids (UFAs) mainly accounted for 74-78% of ASO. The partial least squares (PLS) model based on GC-MS and near-infrared spectroscopy was well-suited for the determination of ASO and UFA content; however, the PLS model for oleic acid (OA) and linoleic acid (LA) was not effective. The acid values and peroxide values for ASO also conformed to the Chinese food safety standards. Our findings will provide new insights and guidance for the use of A. trifoliata as oil crops.

Automated summary

The study reveals the potential of exploiting A. trifoliata as an edible oil crop, and establishes a model for determining the oil content and composition of A. trifoliata seeds. Unsaturated fatty acids are the main component of ASO, and the PLS model based on GC-MS and near-infrared spectroscopy is effective for determining ASO and UFA content.