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Diagnostic product ions-based chemical characterization and antioxidative activity evaluation of solid fermentation for Astragali radix produced by Paecilomyces cicadae
Arabian Journal of Chemistry ( IF 6 ) Pub Date : 2021-01-01 , DOI: 10.1016/j.arabjc.2020.11.014
Zihan Liu , Shaoping Wang , Qiyan Li , Fan Dong , Haoran Li , Zhibin Wang , Long Dai , Xia Wei , Jiayu Zhang

Abstract Studies on herbal medicines and fermentation products have become increasingly essential with the development of modern industry and technology. In order to verify that fermentation can bring about changes, Paecilomyces cicadae [Paecilomyces cicadae (Miquel.) Samson] was used to ferment Astragali radix [Astragalus membranaceus (Fisch.) Bge. var. mongho-licus (Bge.) Hsiao]. After solid fermentation for Astragali radix produced by Paecilomyces cicadae (SF-AP) was established, an efficient strategy based on ultra-high performance liquid chromatography-linear ion trap-Orbitrap mass spectrometry (UHPLC-LTQ-Orbitrap MS) was developed to screen and identify the chemical transformations in SF-AP and Astragali radix according to the acquired diagnostic product ions (DPIs). As a result, 114 compounds including 45 saponins and 69 flavonoids were finally identified and validated. Moreover, two kinds of antioxidative tests corresponding to the scavenging of DPPH· and ABTS·+ were applied to evaluate the antioxidative activity of Astragali radix before and after fermentation. The results demonstrated that some significant chemical transformations such as relative content fluctuations and structural isomerism owing to the occurrence of hydrolysis and conversion reactions and the antioxidative activity of SF-AP was much higher than that of the Astragali radix. This study could provide a new method for the utilization of Astragali radix and constructive guidance for the further research of fermented herbal medicines.

中文翻译:

蝉拟青霉黄芪固体发酵产物离子诊断化学表征及抗氧化活性评价

摘要 随着现代工业和技术的发展,对草药和发酵产品的研究变得越来越重要。为了验证发酵能带来变化,用蝉拟青霉[Paecilomyces cicadae (Miquel.) Samson]发酵黄芪[Astragalus membranaceus (Fisch.) Bge. 变种 mongho-licus (Bge.) Hsiao]。蝉拟青霉(SF-AP)黄芪固体发酵建立后,建立了基于超高效液相色谱-线性离子阱-Orbitrap质谱(UHPLC-LTQ-Orbitrap MS)的高效筛选策略。根据获得的诊断子离子 (DPI) 识别 SF-AP 和黄芪中的化学转化。因此,最终鉴定并验证了114种化合物,包括45种皂苷和69种黄酮类化合物。并应用DPPH·和ABTS·+清除对应的两种抗氧化试验来评价黄芪发酵前后的抗氧化活性。结果表明,由于水解和转化反应的发生,SF-AP发生了一些显着的化学转化,如相对含量波动和结构异构,并且SF-AP的抗氧化活性远高于黄芪。本研究可为黄芪的利用提供新的方法,为发酵药材的进一步研究提供建设性指导。采用清除DPPH·和ABTS·+两种抗氧化试验对黄芪发酵前后的抗氧化活性进行评价。结果表明,由于水解和转化反应的发生,SF-AP发生了一些显着的化学转化,如相对含量波动和结构异构,并且SF-AP的抗氧化活性远高于黄芪。本研究可为黄芪的利用提供新的方法,为发酵药材的进一步研究提供建设性指导。采用清除DPPH·和ABTS·+两种抗氧化试验对黄芪发酵前后的抗氧化活性进行评价。结果表明,由于水解和转化反应的发生,SF-AP发生了一些显着的化学转化,如相对含量波动和结构异构,并且SF-AP的抗氧化活性远高于黄芪。本研究可为黄芪的利用提供新的方法,为发酵药材的进一步研究提供建设性指导。结果表明,由于水解和转化反应的发生,SF-AP发生了一些显着的化学转化,如相对含量波动和结构异构,并且SF-AP的抗氧化活性远高于黄芪。本研究可为黄芪的利用提供新的方法,为发酵药材的进一步研究提供建设性指导。结果表明,由于水解和转化反应的发生,SF-AP发生了一些显着的化学转化,如相对含量波动和结构异构,并且SF-AP的抗氧化活性远高于黄芪。本研究可为黄芪的利用提供新的方法,为发酵药材的进一步研究提供建设性指导。
更新日期:2021-01-01
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