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γ‐linolenic and stearidonic acids from Boraginaceae of diverse Mediterranean origin
Chemistry & Biodiversity ( IF 2.3 ) Pub Date : 2020-11-06 , DOI: 10.1002/cbdv.202000627
José Luis Guil-Guerrero 1 , María José González-Fernández 1 , Svetlana Lyashenko 1 , Dmitri Fabrikov 2 , Miguel Ángel Rincón-Cervera 3 , Miguel Urrestarazu 4 , Francisco Gómez-Mercado 5
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Thirty Boraginaceae species from different tribes were evaluated in a search of γ‐linolenic (GLA, 18:3n‐6) and stearidonic acid (SDA, 18:4n‐3)‐rich oils. The high GLA percentages were found in the seed oils of Symphytum bulbosum and S. tuberosum subsp. tuberosum (27.6 and 27.2 % of total fatty acids (FA)), which are unusually high values for GLA‐oils in the current literature. On the whole seed, noticeable GLA percentages were found in S. grandiflorum, S. tuberosum subsp. tuberosum and Borago officinalis (7.43, 4.90, and 4.51 g/100 g, respectively). The main SDA‐taxa detected in this study were Buglossoides arvensis, B. incrassata and Glandora oleifolia (21.3, 18.9, and 16.3 % of total fatty acids). On total seed weight, Glandora rosmarinifolia showed the highest SDA content (3.57 g/100 g). Finally, the higher FA contents were found in S. grandiflorum and Paramoltkia doerfleri seeds (35.2 and 37.0 g/100 g, respectively). Principal component analysis showed that similarities in FA profiles allow grouping species as botanical criteria for Boraginaceae tribes do, while the FA groupings confirm the metabolic activities of desaturase and elongase enzymes. Data on the FA composition of the seed oils analyzed here suggest their potential use as functional foods and can be considered as novel sources of SDA and GLA.

中文翻译:

来自不同地中海起源的紫草科的γ-亚麻酸和硬脂酸

为了寻找富含 γ-亚麻酸(GLA,18:3n-6)和硬脂酸(SDA,18:4n-3)的油,对来自不同部落的 30 种紫草科物种进行了评估。在 Symphytum ballosum 和 S. tuberosum subsp. 的种子油中发现了高 GLA 百分比。马铃薯(占总脂肪酸 (FA) 的 27.6% 和 27.2%),这是当前文献中 GLA 油的异常高值。在整个种子中,在 S.grandiflorum、S. tuberosum subsp. 中发现了显着的 GLA 百分比。马铃薯和紫草(分别为 7.43、4.90 和 4.51 g/100 g)。本研究中检测到的主要 SDA 分类群是 Buglossoides arvensis、B. incrassata 和 Glandora oleifolia(占总脂肪酸的 21.3%、18.9% 和 16.3%)。在总种子重量上,迷迭香 Glandora 显示出最高的 SDA 含量 (3.57 g/100 g)。最后,在 S 中发现了较高的 FA 含量。Grandiflorum 和 Paramoltkia doerfleri 种子(分别为 35.2 和 37.0 g/100 g)。主成分分析表明,FA 谱的相似性允许将物种分组为紫草科部落的植物标准,而 FA 分组证实了去饱和酶和延长酶的代谢活性。这里分析的种子油的 FA 成分数据表明它们作为功能性食品的潜在用途,可以被视为 SDA 和 GLA 的新来源。
更新日期:2020-11-06
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