Discrimination of the cultivar, growing region, and geographical origin of rice () using a mass spectrometer-based electronic nose.

The objective of this study was to discrimination the cultivar, growing region, and geographical origin of rice () using a mass spectrometry-based electronic nose (MSE-nose). The inside-needle dynamic extraction (INDEX) system was used to concentrate the samples for MSEnose, following which the ion fragment data obtained were used to perform discriminant function analysis. Discriminant functions 1 and 2 readily separated all 16 cultivars of rice sampled.

Effect of fluorescent light and light emitting diode illumination on volatile profiles of vegetable oils.

Volatile compounds from vegetable oils under lighting emitting diode (LED) illumination were analyzed during 12 weeks of storage using different containers. Pattern changes in volatile compounds were analyzed using an electronic nose based on MS. Vegetable oils were more influenced by container type than by illumination.