Determination of Volatile Flavour Profiles of Citrus spp. Fruits by SDE‐GC–MS and Enantiomeric Composition of Chiral Compounds by MDGC–MS

Abstract

The enantiomeric composition and excess ratios of the chiral compounds could be used as reliable indicators of genuineness and quality assurance of the oils derived from the Citrus fruit species. Copyright © 2017 John Wiley & Sons, Ltd.

Volatile constituents of yuzu (Citrus junos Sieb. ex Tanaka) peel oil: A review

“…Only two studies 4,19 described the proper analysis of Yuzu oil by chiral GC, and their results are reported in Table 3. It appears that all the Yuzu oil constituents mentioned in these studies are characterized by high enantiomeric purity.…”

The Blossoming of Technology for the Analysis of Complex Aroma Bouquets—A Review on Flavour and Odorant Multidimensional and Comprehensive Gas Chromatography Applications

“…Species of Citrus fruits, such as C. hystrix [22], C. australasica [23], C. junos , C. limon and C. aurantifolia [24], and the Citrus -like Eustis limequat fruit [25] were analysed by MDGC and GC×GC techniques which proved to be efficient tools to differentiate odorants, varieties and origins, as well as reliably separate, identify and quantify their chiral compounds.…”

“…Delort et al [23] and Hong et al [24] assessed enantiomeric ratios of the chiral aroma volatiles from Australian finger lime ( Citrus australasica ) and other three Citrus species ( C. junos , C. limon and C. aurantifolia ), respectively, using MDGC systems. In the former work, the authors identified six new terpenyl esters and some isomers in the finger lime samples: 6-methyloctyl acetate, citronellyl citronelate, 1,2:5,6-diepoxy- p -menthane, 2,3-epoxy- p -menthan-6-one, cis- and trans - p -menth-1-en-3-ol-6-one and 1,2-epoxy- p -methan-5-one, some of them reported for the first time in a natural product.…”

“…The other three Citrus species assessed in the second study, had limonene, γ-terpinene and linalool as major compounds and excess ratios of the chiral compounds R -(+)-sabinene in C. junos , as well as more S -(−)-sabinene in C. limon and C. aurantifolia . Such information can be used as authenticity and quality indicators for the species analysed [24]. Casilli et al [25] used a selectable MDGC-MS/O system to characterise, resolve complex regions, determine enantiomeric ratios, and assess the odour activity of the peel of Eustis limequat fresh fruits, allowing the identification of trace constituents, without fractionation and also enabled the confirmation of ( R )-(−)-cis- δ -jasminlactone in the Citrus -like fruit.…”

Rapid assessment of the authenticity of limequat fruit using the electronic nose and gas chromatography coupled with mass spectrometry

“…Swingle (lime). They demonstrated the utility of this technique to determine the botanical origin of fruits based on the analysis of the volatile chiral compounds, i.e., α-pinene, camphene, sabinene, limonene, and β-phellandrene [7]. The disadvantage of this solution is the time taken for a single analysis [8].…”