02133nas a2200253 4500008004100000245011100041210006900152260001800221300001200239490000600251520135900257653001301616653001601629653000901645653001001654653002101664100002701685700002501712700003301737700002501770700002501795700002401820856003501844 2017 eng d00aVibrational Analysis and Thermal Behavior of Salvia hispanica, Nigella sativa and Papaver somniferum Seeds0 aVibrational Analysis and Thermal Behavior of Salvia hispanica Ni cFebruary 2017 a157-1620 v93 a

Introduction: Salvia hispanica L., Nigella sativa L. and Papaver somniferum L. are involved in opiate-dependent behavior. It is known that the seeds of these three herbs contain high amounts of antioxidants, which are helpful in disease prevention, but further research is needed on some of their other phytochemical components (terpene alkaloids, benzoquinones and others), which are claimed to affect human opioid receptors. Methods: Seeds from the three afore mentioned plants have been studied by ATR-FTIR vibrational spectroscopy and thermo analytical techniques (TG/DTG, DTA and DSC). Results: The infrared spectrum has confirmed the presence of the ester carbonyl of terpenoid alkaloids (such as nigellamine) and the fully conjugated cyclic dione structure of quinones (e.g., thymoquinone). As regards the thermal stability of these seeds, small differences have been observed in their thermal profiles (endothermic effects at around 333ºC for chia, 268ºC for black cumin and 319ºC for poppy seeds), which can be ascribed to their different content in carbohydrates. Conclusions: The functional groups of the main active constituents and the thermal behavior of these three seeds have been elucidated.

10aATR-FTIR10aBlack cumin10aChia10aPoppy10aThermal analysis1 aCarrión-Prieto, Paula1 aMartín-Ramos, Pablo1 aHernández-Navarro, Salvador1 aSilva-Castro, Iosody1 aRamos-Silva, Manuela1 aMartín-Gil, Jesús uhttp://phcogj.com/fulltext/293