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首页> 外文期刊>The Analyst: The Analytical Journal of the Royal Society of Chemistry: A Monthly International Publication Dealing with All Branches of Analytical Chemistry >Rapid identification of molecular changes in tulsi (Ocimum sanctum Linn) upon ageing using leaf spray ionization mass spectrometry
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Rapid identification of molecular changes in tulsi (Ocimum sanctum Linn) upon ageing using leaf spray ionization mass spectrometry

机译:使用叶喷雾电离质谱法快速鉴定老化后的土尔木(Ocimum sanctum Linn)分子变化

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摘要

Tulsi or Holy Basil (Ocimum sanctum Linn) is a medicinally important plant. Ursolic acid (UA) and oleanolic acid (OA) are among its major constituents which account for many medicinal activities of the plant. In the present work, we deployed a new ambient ionization method, leaf spray ionization, for rapid detection of UA, OA and their oxidation products from tulsi leaves. Tandem electrospray ionization mass spectrometry (ESI-MS) has been performed on tulsi leaf extracts in methanol to establish the identity of the compounds. We probed changes occurring in the relative amounts of the parent compounds (UA and OA) with their oxidized products and the latter show an increasing trend upon ageing. The findings are verified by ESI-MS analysis of tulsi leaf extracts, which shows the same trend proving the reliability of the leaf spray method.
机译:Tulsi或圣罗勒(Ocimum sanctum Linn)是重要的药用植物。熊果酸(UA)和齐墩果酸(OA)是其主要成分,这些成分构成了植物的许多医学活性。在当前的工作中,我们部署了一种新的环境电离方法,即叶片喷雾电离,用于从图尔西叶中快速检测UA,OA及其氧化产物。串联电喷雾电离质谱(ESI-MS)已在甲醇中的tulsi叶提取物上进行,以确定化合物的身份。我们调查了母体化合物(UA和OA)与它们的氧化产物的相对量中发生的变化,后者随着年龄的增长显示出增加的趋势。通过对塔尔西叶提取物的ESI-MS分析验证了这一发现,该结果显示出相同的趋势,证明了叶喷雾法的可靠性。

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