Life originated on Earth possibly as a physicochemical process; thus, geological environments and their hypothetical characteristics on early Earth are essential for chemical evolution studies. Also, it is necessary to consider the energy sources that were available in the past and the components that could have contributed to promote chemical reactions. It has been proposed that the components could have been mineral surfaces. The aim of this work is to determine the possible role of mineral surfaces on chemical evolution, and to study of the stability of relevant molecules for metabolism, such as α-ketoglutaric acid (α-keto acid, Krebs cycle participant), using ionizing radiation and thermal energy as energy sources and mineral surfaces to promote chemical reactions. Preliminary results show α-ketoglutaric acid can be relatively stable at the simulated conditions of an impact-generated hydrothermal system; thus, those systems might have been plausible environments for chemical evolution on Earth.

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模拟冲击产生的热液系统的α-酮戊二酸稳定性：对益生元化学研究的意义

生命起源于地球可能是一个物理化学过程；因此，早期地球的地质环境及其假设特征对于化学演化研究至关重要。此外，有必要考虑过去可用的能源以及可能有助于促进化学反应的成分。有人提出，这些成分可能是矿物表面。这项工作的目的是确定矿物表面对化学演化的可能作用，并使用电离辐射研究相关分子的代谢稳定性，例如 α-酮戊二酸（α-酮酸，克雷布斯循环参与者）和热能作为能源和矿物表面以促进化学反应。初步结果表明，α-酮戊二酸在冲击产生的热液系统的模拟条件下可以相对稳定；因此，这些系统可能是地球上化学演化的合理环境。