01909nam a2200241Ia 4500 MX-MdCICY 20260521091753.0 CICY B-21110 GC-MS AND Chemometric Analysis of the Essential Oils Obtained from Mexican Commercial Chamomilla Recutita Teas Chemistry & BioDiversity, 19, p.e202400333, 2024 The essential oils prepared by hydrodistillation of twenty-one brands of German chamomile (S1-S21)commercialized in Mexico were analyzed by GS-MS. Altogether, twenty-four different compounds were identified in the analyzed samples, varying from 77 to 100 percent of the total composition. Multivariate analyses were applied to explore similarity/dissimilarity and correlation between all samples; the results revealed a strong correlation among samples S4, S5, and S7-S21 due to the presence of (Z)-en-yn-dicycloether [(Z)-tonghaosu], ?-bisabolol, ?-farnesene, ?-eudesmol, and xanthoxylin. The samples S1-S3 and S6 were clustered separately. Samples S1, S3, and S6 were characterized by their higher content of bisabolol oxide A (38.78 percent, 51.84 percent, and 70.46 percent, respectively)as most known chemotypes of German chamomile, but only S1 and S3 contained chamazulene. Finally, S2 differed from the others because of its high content of (E)-anethole (62.28 percent), suggesting a case of adulteration or substitution of the crude drug employed for manufacturing the product. GC-MS MATRICARIA RECUTITA MANZANILLA MULTIVARIATE ANALYSIS Mata, R. Pérez-Vásquez, A. Peña-Álvarez, A. https://drive.google.com/open?id=1Zxcjib45pYkjWKvA83_Jxv38ZdfSfCOz&usp=drive_copy Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx Loc REF1 250602s9999 xx |||||s2 |||| ||und|d 31126 31126 0 0 Loc 0 0 F1 CICY CICY RE 2025-06-25 0 B-21110 2025-06-25 16:25:01 2025-06-25 REF1