Guil-Guerrero J L, Gómez-Mercado F, García-Maroto F, Campra-Madrid P
Departamento de Ingeniería Química, Universidad de Almería, Spain.
Phytochemistry. 2000 Feb;53(4):451-6. doi: 10.1016/s0031-9422(99)00549-x.
Nineteen species of the genus Echium (Fam. Boraginaceae) collected in Macaronesia were surveyed in a search for new sources of gamma-linolenic acid (GLA, 18:3omega6). High amounts of this acid were found in all of them, ranging from 9.15% (E. plantagineum) to 26.31% (E. callithyrsum) of total seed fatty acids. The amounts of GLA related to total seed weight were also significant, ranging from 1.77% (E. sventenii) to 5.02% (E. nervosum). In addition, considerable amounts of stearidonic acid (SA, 18:4omega3) were detected, ranging from 3.03% (E. auberianum) to 12.94% (E. plantagineum) of total fatty acids. These data allow us to consider tile members of the genus Echium from Macaronesia as one of the richest sources of gamma-linolenic acid found so far in nature. The results obtained from multivariable data analysis and the taxonomic relationships among the species is discussed.
对在马卡罗尼西亚采集的19种蓝蓟属(紫草科)植物进行了调查,以寻找γ-亚麻酸(GLA,18:3ω6)的新来源。在所有这些植物中都发现了大量这种酸,占种子总脂肪酸的比例从9.15%(海滨蓝蓟)到26.31%(美丽蓝蓟)不等。与种子总重量相关的GLA含量也很可观,从1.77%(斯文特蓝蓟)到5.02%(多脉蓝蓟)不等。此外,还检测到了相当数量的硬脂酸(SA,18:4ω3),占总脂肪酸的比例从3.03%(奥氏蓝蓟)到12.94%(海滨蓝蓟)不等。这些数据使我们能够将来自马卡罗尼西亚的蓝蓟属植物视为迄今为止自然界中发现的最丰富的γ-亚麻酸来源之一。讨论了多变量数据分析的结果以及物种之间的分类关系。