其他粮食加工品营养成分>产品品质等级检测 | 红曲米产品及原材料的表征-安捷伦科技(中国)有限公司

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应用领域	食品/农产品
检测样本	其他粮食加工品
检测项目	营养成分>产品品质等级
参考标准	-

Rice fermented with the mold Monascus purpureus, also known as the red yeast rice (RYR) used in traditional Chinese medicine, contains pharmacologically important monacolins. The prescription statin, lovastatin, is identical to monacolin K, and there is a suspicion of spiking RYR products with lovastatin. Profiling authentic and raw RYR samples has the potential to distinguish the spiked from natural product. Monascus purpureus is also known to produce the mycotoxin citrinin. Sudan red G, considered possibly genotoxic or carcinogenic by the European Food Safety Authority (EFSA), is a RYR adulterant. Pigments produced by Monascus spp. Are used as coloring agents. To address regulatory requirements, and assess product and raw material quality, origin, and safety, a robust method for characterizing and quantitating monacolins, pigments, and contaminants such as citrinin is needed. This application note presents a method that uses the Agilent Accurate-Mass Q-TOF LC/MS system and Agilent MassHunter Workstation software with principal component analysis (PCA) to characterize three authentic (AU) RYR samples, 31 RYR raw materials (CR), and 14 dietary supplements (DS). Quantitation was performed using UHPLC DAD. The method uncovered notable variation among RYR samples and raw materials. High mass accuracy Q-TOF LC/MS data enabled determination of compound identities, including identities of isobaric compounds. PCA showed that monacolin and pigment type could be used to classify RYR samples to determine the authenticity and quality of other RYR samples.

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上一篇使用 Agilent InfinityLab 在线液相色谱系统实现对流动化学反应器中反应过程的实时监测

下一篇使用 390-LC 多检测器套件 (MDS)，通过 GPC 三重检测分析聚乙烯醇缩丁醛

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安捷伦科技(中国)有限公司

钻石会员丨第23年

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