PDF(Pubmed)
Abstract：
Saffron, renowned for its aroma and flavor, is susceptible to adulteration due to its high value and demand. Current detection methods, including ISO standards, often fail to identify specific adulterants such as safflower or turmeric up to 20% (w/w). Therefore, the quest continues for robust screening methods using advanced techniques to tackle this persistent challenge of safeguarding saffron quality and authenticity. Advanced techniques such as time-of-flight secondary ion mass spectrometry (TOF-SIMS), with its molecular specificity and high sensitivity, offer promising solutions. Samples of pure saffron and saffron adulterated with safflower and turmeric at three inclusion levels (5%, 10%, and 20%) were analyzed without prior treatment. Spectral analysis revealed distinct signatures for pure saffron, safflower, and turmeric. Through principal component analysis (PCA), TOF-SIMS effectively discriminated between pure saffron and saffron adulterated with turmeric and safflower at different inclusion levels. The variation between the groups is attributed to the characteristic peaks of safflower and the amino group peaks and mineral peaks of saffron. Additionally, a study was conducted to demonstrate that semi-quantification of the level of safflower inclusion can be achieved from the normalized values of its characteristic peaks in the saffron matrix.
摘要：
藏红花,以其香气和风味而闻名，由于其高价值和需求，容易被掺假。电流检测方法,包括ISO标准，通常无法识别特定的掺假物，如红花或姜黄高达20％（w/w）。因此,继续寻求强大的筛选方法，使用先进的技术，以解决这个持久的挑战，维护藏红花的质量和真实性。先进的技术，如飞行时间二次离子质谱（TOF-SIMS），具有分子特异性和高灵敏度，提供有希望的解决方案。纯藏红花和藏红花样品掺有红花和姜黄三种包合水平（5％，10%,和20%)在没有事先治疗的情况下进行分析。光谱分析揭示了纯藏红花的明显特征，红花,还有姜黄.通过主成分分析(PCA)，TOF-SIMS有效区分了纯藏红花和掺有姜黄和红花的藏红花。组间的变化归因于红花的特征峰和藏红花的氨基峰和矿物质峰。此外,进行了一项研究，以证明可以从藏红花矩阵中特征峰的归一化值实现红花内含物水平的半定量。
