still unclear as most oligomerization approaches rely on thermodynamically disfavored reactions in solution. Now, a combination of prebiotically plausible minerals and mechanochemical activation enables the oligomerization of glycine at ambient temperature in the absence of water. Raising the reaction temperature increases the degree of oligomerization concomitantly with the formation of a commonly
益生元地球上存在的
氨基酸,无论是源自内源性
化学途径还是由陨石传递,都是公认的。由于大多数寡聚化方法依赖于溶液中的热力学不利反应,因此从灭活
氨基酸到肽的益生元合理途径仍不清楚。现在,益生元似是而非的矿物质和机械
化学活化的组合能够在无
水的情况下在环境温度下进行甘
氨酸寡聚化。升高反应温度会增加低聚度,同时形成通常不需要的环状甘
氨酸二聚体 (DKP)。然而,DKP 是甘
氨酸机械
化学低聚中的生产中间体。