Department of Plant and Environmental Sciences, University of Copenhagen, Thorvaldsensvej 40, 1871, Frederiksberg C, Denmark.
Department of Food Science, University of Copenhagen, 1958, Frederiksberg, Denmark.
Sci Rep. 2022 Apr 19;12(1):6450. doi: 10.1038/s41598-022-10404-8.
Several Amazonian species of Plukenetia are remarkably rich sources of polyunsaturated fatty acids, in particular α-linolenic acid. The lipid composition of the large-seeded, recently described 'Mountain Sacha Inchi' Plukenetia carolis-vegae is reported here for the first time, and compared with Plukenetia huayllabambana, two cultivars of Plukenetia volubilis, and a newly developed hybrid between P. volubilis and P. carolis-vegae. All species and cultivars had a very high content of polyunsaturated fatty acids, 82.6-86.7% of total fatty acids, and at least 46.6% α-linolenic acid of total fatty acids. The highest content was found in P. carolis-vegae which had 57.4%. The exceptionally high α-linolenic acid content suggests that P. carolis-vegae may be an important plant-derived dietary source of this essential fatty acid and that the species has considerable potential for further domestication and commercialisation of its seeds and seed oil. A TAG analysis was carried out for the two P. volubilis cultivars, in which LLnLn and LnLL were most prevalent, and for P. huayllabambana, in which LLnLn constituted the largest fraction, followed by LnLnLn, indicating that this large-seeded species also has interesting dietary properties.
几种亚马逊地区的 Plukenetia 物种是多不饱和脂肪酸的显著来源，特别是α-亚麻酸。本文首次报道了大种子的最近描述的“山 Sacha Inchi”Plukenetia carolis-vegae 的脂质组成，并与 Plukenetia huayllabambana、Plukenetia volubilis 的两个栽培品种以及 Plukenetia volubilis 和 P. carolis-vegae 之间新开发的杂种进行了比较。所有物种和栽培品种的多不饱和脂肪酸含量非常高，总脂肪酸的 82.6-86.7%，总脂肪酸中至少有 46.6%的α-亚麻酸。含量最高的是 P. carolis-vegae，含量为 57.4%。异常高的α-亚麻酸含量表明，P. carolis-vegae 可能是这种必需脂肪酸的重要植物性膳食来源，该物种具有进一步驯化和商业化其种子和籽油的巨大潜力。对两个 P. volubilis 栽培品种进行了 TAG 分析，其中 LLnLn 和 LnLL 最为普遍，对 P. huayllabambana 进行了分析，其中 LLnLn 构成最大部分，其次是 LnLnLn，表明这种大种子物种也具有有趣的饮食特性。
