title: Rapid analysis of Origanum majorana L. fragrance using a nanofiber sheet, gas chromatography with mass spectrometry, and chemometrics.
abstract: Headspace nanofiber sheet microextraction together with GC-MS and chemometrics resolution techniques were implemented to separate and identify the volatiles emitted by intact marjoram (Origanum majorana L.) and their relative concentrations. A novel polyaniline-nylon-6 nanofiber composite was applied for headspace microextraction. Characteristics such as high surface-to-volume ratio and π-π functional groups in polyaniline together with the NH and C=O functional groups in nylon-6 make the polyaniline-nylon-6 nanofiber composite a suitable candidate for the extraction of volatiles and semivolatiles. The extracted constituents were desorbed and injected into the GC-MS system under the optimum conditions. Chemometric resolution techniques were utilized to solve the baseline offset, asymmetric peaks, and overlapped peaks problems that arise from GC-MS analysis. By means of these techniques and resolving the overlapped peak clusters, the number of identified constituents was increased to 67 compounds. The major released constituents from the intact marjoram leaves are 4-terpineol, β-linalool, cis-sabinol, and trans-geraniol.
authors: Department of Science, Babol University of Technology, Babol, Mazandaran, Iran.
authors: Mohammad
authors: M
authors: Asadollahi-Baboli
authors: Ali
authors: A
authors: Aghakhani
mesh_terms: D002209:Caprolactam / Q000031:analogs & derivatives* / Q000737:chemistry; D008401:Gas Chromatography-Mass Spectrometry; D057139:Nanofibers / Q000737:chemistry*; D009812:Odorants / Q000032:analysis; D009822:Oils, Volatile / Q000032:analysis* / Q000737:chemistry*; D031341:Origanum / Q000737:chemistry*; D010476:Perfume / Q000032:analysis / Q000737:chemistry; D011108:Polymers / Q000737:chemistry*; D052617:Solid Phase Microextraction
chemical_list: D009822:Oils, Volatile; D010476:Perfume; D011108:Polymers; C009916:nylon 6; D002209:Caprolactam
keywords: Chemometrics; GC-MS; Origanum majorana L; Polyaniline-nylon-6