The increase in the popularity of hemp‐based products is mainly linked to the presence of non‐psychoactive cannabinoids that provide relief from aches, pain and anxiety. In this study, hemp seed oils were produced by two innovative and environmentally friendly extraction techniques: supercritical and liquid carbon dioxide (CO₂) extraction. The chemical composition of the two oils was analysed and compared with that of a control oil obtained by solvent (n‐hexane) extraction. Both oils obtained by liquid and supercritical CO₂ extraction presented interesting compositions: they contained large amounts of cannabinoids, polyphenols and tocopherols and were less oxidised than the control and contained a large amount of hexanal, which provided a pleasant aroma. The maximum cannabinoid content was found in the oil obtained by liquid CO₂ extraction (71.51 mg of cannabidiol per kg of oil and 113.92 mg of cannabinol per kg of oil). Carotenoids were prevalent in the oil obtained by supercritical CO₂ extraction (61.00 mg kg⁻¹ of oil).

中文翻译：

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超临界和液态二氧化碳萃取对大麻（大麻）种子油的影响

大麻类产品的受欢迎程度增加主要与非精神活性大麻素的存在有关，这种大麻素可缓解疼痛，疼痛和焦虑。在这项研究中，大麻籽油是通过两种创新且环保的提取技术生产的：超临界和液态二氧化碳（CO ₂）提取。两种油的化学组成进行了分析，并与通过溶剂（获得的控制油的比较Ñ己烷）萃取。通过液态和超临界CO ₂获得的两种油提取物显示出有趣的成分：它们含有大量的大麻素，多酚和生育酚，并且氧化程度低于对照，并且含有大量的己醛，提供了令人愉悦的香气。在通过液态CO ₂萃取获得的油中发现了最大的大麻素含量（每千克油71.51 mg大麻二酚和每千克油113.92 mg大麻酚）。类胡萝卜素普遍存在于通过超临界CO ₂萃取获得的油中（61.00 mg kg ^-1油）。