Review of the role and methodology of high resolution approaches in aroma analysis

Chin, Sung‐Tong; Marriott, Philip J.

doi:10.1016/j.aca.2014.06.029

Cited by 44 publications

(19 citation statements)

References 100 publications

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“…Commercial cannabis testing laboratories therefore rarely offer services that comprise more than 20 terpenoids. While such analyses may detect the most abundant terpenoids for popular strains, it is not unlikely that important aroma volatiles with a low odor detection threshold could be missed (Chin and Marriott, 2015). Another reason why a comprehensive profiling of terpenoids would be desirable relates to testing the validity of the entourage effect, the proposed synergism between cannabinoids and other constituents (in particular terpenoids) that might affect the experience of the user (Gertsch et al, 2008;Russo, 2011).…”

Section: Utility Of Metabolite Profiling For Strain Differentiationmentioning

confidence: 99%

Gene Networks Underlying Cannabinoid and Terpenoid Accumulation in Cannabis

et al. 2019

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Glandular trichomes are specialized anatomical structures that accumulate secretions with important biological roles in plantenvironment interactions. These secretions also have commercial uses in the flavor, fragrance, and pharmaceutical industries. The capitate-stalked glandular trichomes of Cannabis sativa (cannabis), situated on the surfaces of the bracts of the female flowers, are the primary site for the biosynthesis and storage of resins rich in cannabinoids and terpenoids. In this study, we profiled nine commercial cannabis strains with purportedly different attributes, such as taste, color, smell, and genetic origin. Glandular trichomes were isolated from each of these strains, and cell type-specific transcriptome data sets were acquired. Cannabinoids and terpenoids were quantified in flower buds. Statistical analyses indicated that these data sets enable the high-resolution differentiation of strains by providing complementary information. Integrative analyses revealed a coexpression network of genes involved in the biosynthesis of both cannabinoids and terpenoids from imported precursors. Terpene synthase genes involved in the biosynthesis of the major monoterpenes and sesquiterpenes routinely assayed by cannabis testing laboratories were identified and functionally evaluated. In addition to cloning variants of previously characterized genes, specifically CsTPS14CT [(2)-limonene synthase] and CsTPS15CT (b-myrcene synthase), we functionally evaluated genes that encode enzymes with activities not previously described in cannabis, namely CsTPS18VF and CsTPS19BL (nerolidol/linalool synthases), CsTPS16CC (germacrene B synthase), and CsTPS20CT (hedycaryol synthase). This study lays the groundwork for developing a better understanding of the complex chemistry and biochemistry underlying resin accumulation across commercial cannabis strains.

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Section: Utility Of Metabolite Profiling For Strain Differentiationmentioning

confidence: 99%

Gene Networks Underlying Cannabinoid and Terpenoid Accumulation in Cannabis

et al. 2019

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“…MDGC and GC-O techniques are frequently used in food flavour analysis (Cajka, Hajslová, Cochran, Holadová, & Klimánková, 2007;Chin & Marriott, 2015;Chin et al, 2012a;Gogus, Ozel, & Lewis, 2006;Komura, 2006;Williams, Ryan, Olarte Guasca, Marriott, & Pang, 2005); in this context, to the best of our knowledge, this is the first study that has combined GC-O, comprehensive two-dimensional gas chromatography (GC × GC), and heartcutting MDGC (H/C MDGC) together with accurate mass spectrometry detection (accTOFMS) for analysis of orange juice aroma. Rather than profiling the whole sample, the aim of this work was to identify the compounds of major importance for the aroma of orange juice, to evaluate the occurrence of co-elution, and implement methods for improved separation of these compounds.…”

Section: Introductionmentioning

confidence: 99%

Identification of odour-active compounds of pasteurised orange juice using multidimensional gas chromatography techniques

Mastello

Capobiango

Chin

et al. 2015

Food Research International

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“…The chemical composition of lavandin has a higher camphor content than true lavender. Chemical composition can be revealed using gas chromatography (Bicchi, 2000;Can Baş er and Özek, 2012;Cserháti et al, 2005;Daferera et al, 2002;Marriott et al, 2001;Nikolić et al, 2014;Pallado et al, 1997;Ter Heide et al, 1970) and gas chromatography-sniffing (Chin and Marriott, 2015;Cserháti et al, 2005;Marriott et al, 2001). These methods are usually applied for quality control purposes (Do et al, 2015) and selection of highquality plants, but they are very time-consuming, and attempts have been made to find alternative analytical analysis methods.…”

Section: Introductionmentioning

confidence: 99%

Chemometric analysis of French lavender and lavandin essential oils by near infrared spectroscopy

Lafhal

Vanloot

Bombarda

et al. 2016

Industrial Crops and Products

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International audienceChemometric treatments of near infrared (NIR) spectra were used firstly to understand data structure by principal component analysis (PCA), to discriminate, by partial least squares-discriminant analysis (PLS-DA) regression, French lavender and lavandin essential oils (EOs) samples (n = 160) and the seven varieties (Abrial, Fine, Grosso, Maillette, Matherone, Sumian and Super) and to quantify the main compounds such as linalyl acetate, linalool, eucalyptol and camphor by PLS regression models. The study was carried out over three crop years (2012–2014) to take seasonal variations into account. French lavender and lavandin EOs and their varieties were well classified (100% for lavender/lavandin EOs and between 96 and 100% for varieties) by PLS-DA regression models. The calibration models obtained by PLS regression for the determination of the main compound contents revealed good correlation (≥0.97) between the predicted and reference values. In the case of major compounds including linalyl acetate and linalool, the relative error of prediction (REP) is close to 2.5%. Partial least squares regression vectors allowed us to identify lavandulyl acetate, eucalyptol, linalool, camphor, trans-ocimene,-caryophyllene and linalyl acetate as metabolomic indicators of Fine, Maillette, Matherone, Abrial, Grosso, Super and Sumian varieties respectively. The use of NIR spectra allowed for an improvement in French lavender and lavandin EOs characterization, quality control and traceability

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Review of the role and methodology of high resolution approaches in aroma analysis

Cited by 44 publications

References 100 publications

Gene Networks Underlying Cannabinoid and Terpenoid Accumulation in Cannabis

Gene Networks Underlying Cannabinoid and Terpenoid Accumulation in Cannabis

Identification of odour-active compounds of pasteurised orange juice using multidimensional gas chromatography techniques

Chemometric analysis of French lavender and lavandin essential oils by near infrared spectroscopy

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