Abstract:
Houttuynia Cordata (HC) is a widely distributed plant in Asia and is used extensively for both food and medicinal purposes. A preliminary investigation found that HC is often bleached with sodium metabisulfite solution during its field processing, leading to health risks. In this study, the effects of sodium metabisulfite on the quality of HC were comprehensively evaluated using volatile and non-volatile targeted metabolomic methods. The results revealed a positive correlation between the extent of chemical composition changes and the bleaching time. These notable changes mainly occurred at the initial stage of bleaching. Subsequently, an untargeted UPLC/Q-TOF MS method was used to explore the potential chemical bleaching markers in bleached HC. The marker 1-hydroxy-3-oxodecane-1-sulfonic acid was subsequently prepared, isolated, and identified. Market sample verification further validated the accuracy and effectiveness of this marker.
摘要:
鱼腥草(HC)是亚洲广泛分布的植物,广泛用于食品和药用。初步调查发现,HC在现场加工过程中经常被焦亚硫酸钠溶液漂白,导致健康风险。在这项研究中,使用挥发性和非挥发性靶向代谢组学方法综合评价了焦亚硫酸钠对HC质量的影响。结果表明,化学成分变化的程度与漂白时间呈正相关。这些显著的变化主要发生在漂白的初始阶段。随后,使用非靶向UPLC/Q-TOFMS方法来探索漂白HC中潜在的化学漂白标记。随后制备标记物1-羟基-3-氧代癸烷-1-磺酸,孤立的,并确定。市场样本验证进一步验证了该标记的准确性和有效性。