Hemp (Cannabis sativa L.) Varieties: Fatty Acid Profiles and Upgrading of γ‐Linolenic Acid–Containing Hemp Seed Oils,European Journal of Lipid Science and Technology

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Hemp (Cannabis sativa L.) Varieties: Fatty Acid Profiles and Upgrading of γ‐Linolenic Acid–Containing Hemp Seed Oils
European Journal of Lipid Science and Technology ( IF 1.8 ) Pub Date : 2020-06-09 , DOI: 10.1002/ejlt.201900445
José Ignacio Alonso‐Esteban ₁ , María José González‐Fernández ₂ , Dmitri Fabrikov ₂ , Esperanza Torija‐Isasa ₁ , María de Cortes Sánchez‐Mata ₁ , José Luis Guil‐Guerrero ₂

Affiliation

Hemp seeds (HS) constitute a rich nutrient source and contain γ‐linolenic acid (GLA, 18:3, n‐6), which is a healthy fatty acid (FA). The objectives of this research are i) to look for GLA‐rich varieties of unhusked hemp seeds (UHS) and commercial hulled hemp seeds (HHS); ii) to check the influence of different extracting systems on both oil yield and FA profiles; iii) to test a simultaneous oil extraction/GLA‐enrichment process looking to improve GLA content. Hop and European hackberry seeds (both from Cannabaceae family) are also analyzed for comparative purposes. GLA is the most discriminant FA among UHS varieties, ranging in both UHS and HHS seeds from 0.5% to 4.5% of total FA, while hop seeds are the richest GLA source from Cannabaceae (7.2% of total FA). The extraction system selected for hemp seeds processing has a clear influence on oil yields, although, the FA profiles are slightly modified. The use of n‐hexane and n‐hexane:acetone in extractions allows an improvement in oil yields at the same GLA percentage. A process comprising saponification and subsequent cooling allows the improvement of GLA percentage in both hemp and hop seeds extracts at values higher than 10% of total FA, at high yields (>70%).

中文翻译：

大麻（大麻）品种：含γ-亚麻酸的大麻籽油的脂肪酸谱和升级

大麻种子（HS）构成了丰富的营养来源，并含有γ-亚麻酸（GLA，18：3，n-6），这是一种健康的脂肪酸（FA）。这项研究的目的是：i）寻找富含GLA的无壳大麻籽（UHS）和商业脱壳大麻籽（HHS）品种；ii）检查不同的萃取系统对石油产量和FA剖面的影响；iii）测试旨在提高GLA含量的同时采油/ GLA富集过程。为了比较目的，还分析了蛇麻草和欧洲朴树种子（均来自大麻科）。GLA是UHS品种中最有区别的FA，在UHS和HHS种子中，FA占总FA的0.5％至4.5％，而酒花籽是大麻科植物中最丰富的GLA来源（占FA的7.2％）。尽管FA曲线略有修改，但选择用于大麻种子加工的萃取系统对油的产量有明显的影响。n的使用己烷和Ñ己烷：丙酮在萃取允许在相同的GLA百分比在油产率的改进。包括皂化和随后冷却的过程可提高大麻和啤酒花种子提取物中的GLA百分率，使其总收成高于总FA的10％，且产量高（> 70％）。

更新日期：2020-06-09

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