Ohta Kousaku, Takeshita Tsuyoshi, Funabashi Masatoshi, Oda Shoji
Laboratory of Genome Stability, Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8562, Japan.
Laboratory of Plant Life System, Department of Integrated Biosciences, Graduate School of Frontier Sciences, The University of Tokyo, Kashiwa, Chiba 277-8562, Japan.
Plant Biotechnol (Tokyo). 2016;33(4):277-279. doi: 10.5511/plantbiotechnology.16.0217b. Epub 2016 Apr 9.
The ratio of dietary n-6/n-3 polyunsaturated fatty acids is higher in the modern Western meal when compared with that of the Paleolithic era. Evidences have been accumulating that the extremely high ratio of dietary n-6/n-3 polyunsaturated fatty acids increases the risk of disease and the deterioration of physical conditions among humans. In this study, the ratio of linoleic acid (C18:2, n-6) and α-linolenic acid (C18:3, n-3) of rucola, , was compared between naturally grown samples and conventional farming products (=3 for each). We found that the naturally grown rucola contained significantly higher amount of α-linolenic acid (=0.026), resulting in the lower ratio of linoleic acid and α-linolenic acid than the conventional (=0.016). This finding suggests that vegetables cultured in conventional farming method could decrease the health promotion effects that the vegetables originally possess in natural environment.
与旧石器时代相比，现代西方饮食中膳食n-6/n-3多不饱和脂肪酸的比例更高。越来越多的证据表明，膳食n-6/n-3多不饱和脂肪酸的极高比例会增加人类患病风险和身体状况恶化。在本研究中，比较了自然生长的芝麻菜样本和传统种植产品（各3个）中亚油酸（C18:2，n-6）和α-亚麻酸（C18:3，n-3）的比例。我们发现，自然生长的芝麻菜中α-亚麻酸含量显著更高（=0.026），导致亚油酸与α-亚麻酸的比例低于传统种植的芝麻菜（=0.016）。这一发现表明，采用传统种植方法培育的蔬菜可能会降低蔬菜在自然环境中原本具有的促进健康的功效。
