Chemisches und Veterinäruntersuchungsamt Stuttgart, Schaflandstr, Fellbach, Germany.
J Agric Food Chem. 2011 Jul 13;59(13):6877-81. doi: 10.1021/jf2014827. Epub 2011 Jun 8.
Nontargeted 400 MHz (13)C and (1)H nuclear magnetic resonance (NMR) spectroscopy was used in the context of food surveillance to reveal Pinus species whose nuts cause taste disturbance following their consumption, the so-called pine nut syndrome (PNS). Using principal component analysis, three groups of pine nuts were distinguished. PNS-causing products were found in only one of the groups, which however also included some normal products. Sensory analysis was still required to confirm PNS, but NMR allowed the sorting of 53% of 57 samples, which belong to the two groups not containing PNS species. Furthermore, soft independent modeling of class analogy was able to classify the samples between the three groups. NMR spectroscopy was judged as suitable for the screening of pine nuts for PNS. This process may be advantageous as a means of importation control that will allow the identification of samples suitable for direct clearance and those that require further sensory analysis.
非靶向性 400 MHz (13)C 和 (1)H 核磁共振（NMR）波谱法被用于食品监测，以揭示食用后会引起味觉紊乱的松树物种，即所谓的松子综合征（PNS）。使用主成分分析，可以将三种松子区分开来。只有一组松子中发现了引起 PNS 的产品，但其中也包括一些正常产品。仍需要感官分析来确认 PNS，但 NMR 允许对属于不含 PNS 物种的两组中的 57 个样品中的 53%进行分类。此外，软独立建模的类类比也能够对三组之间的样品进行分类。NMR 光谱法被认为适合用于 PNS 的松子筛选。这种方法可能具有优势，因为它可以作为一种进口控制手段，用于识别适合直接放行的样品和需要进一步感官分析的样品。
