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Evaluation of the carbon isotope ratios of selected volatiles determined in several citrus authentic petitgrain oils. Bigarade (C. aurantium) petitgrain oil’s first case report

Author:
Schipilliti, Luisa, Bonaccorsi, Ivana L., Mondello, Luigi
Source:
TheJournal of essential oil research 2019 v.31 no.2 pp. 99-110
ISSN:
2163-8152
Subject:
Citrus aurantium, carbon, case studies, essential oils, gas chromatography-mass spectrometry, ionization, leaf oils, lemons, spectrometers, stable isotopes, volatile compounds
Abstract:
Selected volatile components were analyzed by gas chromatography (GC) coupled to a combustion-isotope ratio mass spectrometer to assess their δ¹³C values in authentic citrus leaf oils. In particular were analyzed lemon, mandarin and bitter orange petitgrain oils industrially produced by a local factory. All the samples were then analyzed by gas chromatography mass spectrometry and gas chromatography-flame ionization detection and enantio-GC for the quality assessment of each petitgrain. These values were then compared and genuineness of each sample was defined based on all the different parameters detected. The results show good agreement between the different analytical approaches. In addition in this article are reported for the first time the δ¹³C values relative to genuine bitter orange petitgrain oil, useful for the quality assessment of this niche product of great economical importance.
Agid:
6276838