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Tzimas PS, Beteinakis S, Petrakis EA, Papastylianou PT, Kakabouki I, Small-Howard AL, Skaltsounis LA, Halabalaki M. Uncovering the metabolite complexity and variability of cultivated hemp (Cannabis sativa L.): A first phytochemical diversity mapping in Greece. PHYTOCHEMISTRY 2024; 222:114076. [PMID: 38570005 DOI: 10.1016/j.phytochem.2024.114076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/21/2024] [Revised: 03/11/2024] [Accepted: 03/28/2024] [Indexed: 04/05/2024]
Abstract
The high value of fiber-type Cannabis sativa L. (hemp) due to its phytochemicals has yet to be fully recognized and leveraged. Besides cannabidiol (CBD), which is the most prevalent non-psychoactive cannabinoid, hemp contains numerous other cannabinoids with unexplored bioactivities, in addition to various compound classes. Previous works have aimed to correlate chemical profiles of C. sativa inflorescences with important parameters, mostly based on experiments under controlled conditions. However, mapping studies that explore the phytochemical diversity of hemp in a more realistic context are crucial to guide decisions at multiple levels, especially in areas where hemp cultivation was recently re-authorized, including Mediterranean countries. In this work, a powerful strategy was followed to map the phytochemical diversity of cultivated hemp in Greece, being the first study of its kind for this environment. A panel of 98 inflorescence samples, covering two harvesting years, eleven geographical regions and seven commonly used EU varieties, were studied using a combination of targeted and untargeted approaches. Quantitative results based on UPLC-PDA revealed relatively constant CBD/THC (total) ratios, while profiling by LC-HRMS effectively probed the phytochemical variability of samples, and led to the annotation of 88 metabolites, including a multitude of minor cannabinoids. Multivariate analysis substantiated a strong effect of harvesting year in sample discrimination and related biomarkers were revealed, belonging to fatty acids and flavonoids. The effect of geographical region and, especially, variety on chemical variation patterns was more intricate to interpret. The results of this work are envisioned to enhance our understanding of the real-world phytochemical complexity of C. sativa (hemp), with a view to maximized utilization of hemp for the promotion of human well-being.
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Affiliation(s)
- Petros S Tzimas
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Stavros Beteinakis
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Eleftherios A Petrakis
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece
| | - Panayiota T Papastylianou
- Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos Str., 11855 Athens, Greece
| | - Ioanna Kakabouki
- Laboratory of Agronomy, Department of Crop Science, Agricultural University of Athens, 75 Iera Odos Str., 11855 Athens, Greece
| | | | - Leandros A Skaltsounis
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece.
| | - Maria Halabalaki
- Division of Pharmacognosy and Natural Products Chemistry, Department of Pharmacy, National and Kapodistrian University of Athens, Panepistimiopolis Zografou, 15771 Athens, Greece.
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Desmedt B, Van Campenhout P, Deconinck E. A systematic review of analytical methodologies capable of analysing phytocannabinoids in cosmetics. Drug Test Anal 2024. [PMID: 38229238 DOI: 10.1002/dta.3628] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2023] [Revised: 11/22/2023] [Accepted: 11/27/2023] [Indexed: 01/18/2024]
Abstract
As cannabidiol (CBD) is not considered to be a drug and because of its potential health claims, it is an interesting compound that is often found in cosmetics. However, the safety of CBD, as well as the presence of trace amounts of other phytocannabinoids, including the psychoactive substance ∆9 -tetrahydrocannabinol (THC), is still being debated. A robust analytical technique capable of analysing cosmetic products and determining their phytocannabinoid content will be crucial in assessing the safety of these products. This systematic review aims to highlight the current analytical tools that could be used to analyse phytocannabinoids in cosmetics. The ideal method would be able to analyse high levels of CBD in combination with trace levels of THC and their acids. The method should provide good recoveries and accuracies in a variety of matrices while providing information on up-coming phytocannabinoids such as cannabichromene (CBC), cannabigerol (CBG) and cannabinol (CBN). The systematic review approach was based on the Preferred Reporting Items for Systematic review and Meta-Analyses method. The research focused on studies published from January 2010 to December 2022 in PubMed and Scopus. A total of 15 datasets met the inclusion and exclusion criteria and were tabulated to allow easy comparison. Although some of the reviewed methods can handle multiple matrices and provide satisfactory recoveries, this review process did not identify an ideal method. The most suitable methods either could not quantify phytocannabinoid acids or were not sensitive enough to quantify trace levels of psychoactive phytocannabinoids.
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Affiliation(s)
- Bart Desmedt
- Medicines and Health Products, Scientific Direction Physical and Chemical Health risks, Sciensano, Brussels, Belgium
| | - Peter Van Campenhout
- Medicines and Health Products, Scientific Direction Physical and Chemical Health risks, Sciensano, Brussels, Belgium
| | - Eric Deconinck
- Medicines and Health Products, Scientific Direction Physical and Chemical Health risks, Sciensano, Brussels, Belgium
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Tzimas PS, Petrakis EA, Halabalaki M, Skaltsounis LA. Extraction solvent selection for Cannabis sativa L. by efficient exploration of cannabinoid selectivity and phytochemical diversity. PHYTOCHEMICAL ANALYSIS : PCA 2024; 35:163-183. [PMID: 37709551 DOI: 10.1002/pca.3282] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Accepted: 08/28/2023] [Indexed: 09/16/2023]
Abstract
INTRODUCTION Cannabis sativa L. is attracting worldwide attention due to various health-promoting effects. Extraction solvent type is critical for the recovery of bioactive compounds from the plant, especially cannabinoids. However, the choice of solvent is varied and not adequately warranted elsewhere, causing confusion in involved fields. OBJECTIVE The present work aimed to investigate the effect of extraction solvent on C. sativa (hemp) with regard to cannabinoid recovery and phytochemical profile of the extracts, considering most of the related solvents. METHODOLOGY The majority of solvents reported for C. sativa (n = 14) were compared using a representative hemp pool. Quantitative results for major and minor cannabinoids were rapidly and reliably obtained using ultrahigh-performance liquid chromatography coupled with photodiode array detection (UPLC-PDA). In parallel, high-performance thin-layer chromatographic (HPTLC) fingerprinting was employed, involving less toxic mobile phase than in relevant reports. Various derivatisation schemes were applied for more comprehensive comparison of extracts. RESULTS Differential selectivity towards cannabinoids was observed among solvents. MeOH was found particularly efficient for most cannabinoids, in addition to solvent systems such as n-Hex/EtOH 70:30 and ACN/EtOH 80:20, while EtOH was generally inferior. For tetrahydrocannabinol (THC)-type compounds, EtOAc and n-Hex/EtOAc 60:40 outperformed n-Hex, despite its use in the official EU method. Solvents that tend to extract more lipids or more polar compounds were revealed based on HPTLC results. CONCLUSION Combining the observations from UPLC quantitation and HPTLC fingerprinting, this work allowed comprehensive evaluation of extraction solvents, in view of robust quality assessment and maximised utilisation of C. sativa.
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Affiliation(s)
- Petros S Tzimas
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Eleftherios A Petrakis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Maria Halabalaki
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
| | - Leandros A Skaltsounis
- Department of Pharmacognosy and Natural Products Chemistry, Faculty of Pharmacy, National and Kapodistrian University of Athens, Athens, Greece
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Alvarez JC, Pelissier AL, Mura P, Goullé JP. [Cannabidiol (CBD): Analytical and toxicological aspects]. Therapie 2023; 78:639-645. [PMID: 36868996 DOI: 10.1016/j.therap.2023.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2022] [Revised: 01/31/2023] [Accepted: 02/14/2023] [Indexed: 02/22/2023]
Abstract
Cannabidiol (CBD) is a phytocannabinoid present in cannabis, obtained either by extraction from the plant or by synthesis. The latter has the advantage of being pure and contains few impurities, unlike CBD of plant origin. It is used by inhalation, ingestion or skin application. In France, the law stipulates that specialties containing CBD may contain up to 0.3% of tetrahydrocannabinol (THC), the psychoactive principle of cannabis. From an analytical point of view, it is therefore important to be able to quantify the two compounds as well as their metabolites in the various matrices that can be used clinically or forensically, in particular saliva and blood. The transformation of CBD into THC, which has long been suggested, appears to be an analytical artifact under certain conditions. CBD is not without toxicity, whether acute or chronic, as seems to attest to the serious adverse effects recorded by pharmacovigilance during the experiment currently being conducted in France by the Agence Nationale de Sécurité du Médicament et des Produits de Santé. Although CBD does not seem to modify driving abilities, driving a vehicle after consuming CBD containing up to 0.3% THC, and sometimes much more in products bought on the internet, can lead to a positive result in screening and confirmation tests by law enforcement agencies, whether salivary or blood tests, and therefore lead to a legal sanction.
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Affiliation(s)
- Jean-Claude Alvarez
- Laboratoire de pharmacologie/toxicologie, CHU Garches, université Paris-Saclay (Versailles-St Quentin-en-Yvelines), plateforme de spectrométrie de masse MasSpecLab, UFR médecine Simone Veil, Inserm U-1018, CESP, Équipe MOODS, 92380 Garches, France.
| | - Anne-Laure Pelissier
- Laboratoire de toxicologie, service de médecine légale, AP-HM, CHU Timone, Aix-Marseille université, 13005 Marseille, France
| | - Patrick Mura
- Académie nationale de Pharmacie, 75270 Paris, France
| | - Jean-Pierre Goullé
- Laboratoire de toxicologie, UNIROUEN, UR ABTE EA 4651, UFR de santé, université de Rouen, 76183 Rouen, France
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Monari A, Cantalù S, Zanfrognini B, Brighenti V, Verri P, Zanardi C, Pellati F, Pigani L. An electrochemical approach for the prediction of Δ 9-tetrahydrocannabinolic acid and total cannabinoid content in Cannabis sativa L. Analyst 2023; 148:4688-4697. [PMID: 37602722 DOI: 10.1039/d3an01090b] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/22/2023]
Abstract
Two electrochemical sensors are proposed here for the first time for the fast screening of cannabinoids in Cannabis sativa L. plant material (inflorescences). The accurate control of cannabinoid content is important for discriminating between recreational, i.e. illegal, and fibre-type C. sativa samples, which differ mainly according to the amount of Δ9-tetrahydrocannabinol (Δ9-THC) and Δ9-tetrahydrocannabinolic acid (Δ9-THCA). Two screen printed electrodes obtained using different electrode materials were tested for the analysis of extracts from recreational and fibre-type C. sativa and their performance was compared with a consolidated method based on high-performance liquid chromatography (HPLC). The voltammetric responses recorded in the different samples reflected the compositional differences of the recreational and fibre-type extracts in accordance with the results of HPLC analyses. Moreover, the quantification of Δ9-THCA and the total cannabinoid content on the basis of the intensity of the peaks of the voltammograms was possible through a simple and fast electrochemical procedure.
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Affiliation(s)
- Alessandro Monari
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, via G. Campi 103, 41125 Modena, Italy.
| | - Sara Cantalù
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, via G. Campi 103, 41125 Modena, Italy.
| | - Barbara Zanfrognini
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, via G. Campi 103, 41125 Modena, Italy.
| | - Virginia Brighenti
- Department of Life Sciences, University of Modena and Reggio Emilia, G. Campi 103, 41125 Modena, Italy.
| | - Patrizia Verri
- Department of Biomedical, Metabolic and Neural Sciences, Institute of Legal Medicine, University of Modena and Reggio Emilia, Modena, Italy
| | - Chiara Zanardi
- Department of Molecular Sciences and Nanosystems, Ca' Foscari University of Venice, via Torino 155, 30170 Venice, Italy
- Institute for Organic Synthesis and Photoreactivity, National Research Council, 40129 Bologna, Italy
| | - Federica Pellati
- Department of Life Sciences, University of Modena and Reggio Emilia, G. Campi 103, 41125 Modena, Italy.
- Interdepartmental Research Centre of the University of Modena and Reggio Emilia BIOGEST-SITEIA, Piazzale Europa 1, 42124 Reggio Emilia, Italy
| | - Laura Pigani
- Department of Chemical and Geological Sciences, University of Modena and Reggio Emilia, via G. Campi 103, 41125 Modena, Italy.
- Interdepartmental Research Centre of the University of Modena and Reggio Emilia BIOGEST-SITEIA, Piazzale Europa 1, 42124 Reggio Emilia, Italy
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Viganó J, Strieder MM, Pizani RS, Contieri LS, Mesquita LMDS, Rostagno MA. Application of an integrative system (2D PLE×HPLC-PDA) for bioactive compound extraction and online quantification: Advantages, validation, and considerations. Anal Chim Acta 2023; 1272:341494. [PMID: 37355330 DOI: 10.1016/j.aca.2023.341494] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2023] [Revised: 06/02/2023] [Accepted: 06/05/2023] [Indexed: 06/26/2023]
Abstract
Analyzing compounds such as polyphenols in solid samples frequently uses a solid-liquid extraction step. The solid-liquid extraction and analysis integration in a single equipment is not commercially available since several challenges are inherent to this hybridization. In the context of developing more sustainable analytical procedures, innovative techniques are demanded. Given that, this work proposes a new integrative system (2D PLE × HPLC-PDA) and presents its validation for bioactive compound extraction and online quantification, discussing the main advantages and cares that need to be taken. Two food byproducts - passion fruit bagasse and coffee husks - were chosen as solid model samples. The system was configured to perform pressurized liquid extraction (PLE) with periodical automated extract injection in the HPLC, consequently obtaining the online quantification of target compounds from the solid samples. In parallel with the online injections, extract fractions were collected and submitted to offline analysis in which the extraction yield of piceatannol and chlorogenic acid and caffeine were evaluated, respectively, for passion fruit bagasse and coffee husks. The extraction yields obtained by online and offline injections were compared and were significantly equal (p > 0.05). Thus, the 2D PLE × HPLC-PDA system represents a feasible tool to integrate solid sample preparation and chemical analysis of biocompounds in a single and online step.
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Affiliation(s)
- Juliane Viganó
- Centro de Ciências da Natureza, Universidade Federal de São Carlos, Rod. Lauri Simões de Barros, Km 12 - SP 189, Buri, SP, 18290-000, Brazil; Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), Universidade Estadual de Campinas, São Paulo, Brazil.
| | - Monique Martins Strieder
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), Universidade Estadual de Campinas, São Paulo, Brazil
| | - Rodrigo S Pizani
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), Universidade Estadual de Campinas, São Paulo, Brazil
| | - Letícia S Contieri
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), Universidade Estadual de Campinas, São Paulo, Brazil
| | - Leonardo M de Souza Mesquita
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), Universidade Estadual de Campinas, São Paulo, Brazil
| | - Mauricio A Rostagno
- Multidisciplinary Laboratory of Food and Health (LabMAS), School of Applied Sciences (FCA), Universidade Estadual de Campinas, São Paulo, Brazil.
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Aebersold AS, Kumar A, Song ZH. LC-MS/MS quantitation of non-psychotropic cannabinoid cannabidiol in aqueous humor. J Pharm Biomed Anal 2023; 228:115324. [PMID: 36907022 PMCID: PMC10163896 DOI: 10.1016/j.jpba.2023.115324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/09/2022] [Revised: 01/16/2023] [Accepted: 03/02/2023] [Indexed: 03/07/2023]
Abstract
Cannabidiol (CBD) is the most abundant non-psychotropic phytocannabinoid isolated from Cannabis sativa. To support preclinical studies of ocular pharmacology of CBD, a bioanalytical method was developed and validated for quantification of CBD in aqueous humor using liquid chromatography-tandem mass spectrometry (LC-MS/MS). Aqueous humor samples were subjected to protein precipitation by acetonitrile, followed by chromatographic separation using reversed phase LC on a Raptor ARC-18 column with mobile phase A: 0.1 % (v/v) formic acid in water (B) 0.1 % formic acid in acetonitrile (B) as eluents. Detection was carried out with a triple quadrupole mass spectrometer with electrospray ionization operated in positive ion mode. Stable-isotope labeled CBD (CBD-d3) was used as internal standard. The total run time was 8 min. Quantification was accomplished within the validated concentration range of 0.5-500 ng/mL for CBD using a 5 µL sample. The lower limit of quantitation was 0.5 ng/mL. Inter- and intra-day precision is 4.737-7.620 % and 3.426-5.830 %, respectively. Inter- and intra-day accuracy ranged between 99.01 % and 100.2 % and 99.85-101.4 % respectively. The extraction recoveries were found to be 66.06 ± 5.146 %. The established method was successfully applied to investigate ocular pharmacokinetics of CBD in mice. Following intraperitoneal (i.p.) administration of 50 mg/kg CBD, its concentration reaches a Cmax of 71.55 ± 36.64 ng/mL in aqueous humor, with a Tmax of 2 h and a half-life of 1.046 h. The AUC was 183.4 ± 49.17 ng * h/mL. The development and validation of this LC-MS/MS method is an important step toward the goal of assessing the aqueous humor concentrations of CBD and correlating the concentrations of this phytocannabinoid with its ocular pharmacologic effects.
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Affiliation(s)
- Alyssa S Aebersold
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, United States; Pearl Medical, Louisville, KY 40218, United States
| | - Akhilesh Kumar
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, United States; Phyto LabTech, Salt Lake City, UT 84414, United States
| | - Zhao-Hui Song
- Department of Pharmacology and Toxicology, University of Louisville School of Medicine, Louisville, KY 40292, United States.
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8
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Azorín C, Benedé JL, Chisvert A, Salvador A. Trace determination of tetrahydrocannabinol (THC) in cosmetic products by stir bar sorptive dispersive microextraction followed by liquid chromatography-tandem mass spectrometry. Talanta 2023; 253:123934. [PMID: 36152610 DOI: 10.1016/j.talanta.2022.123934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2022] [Revised: 09/06/2022] [Accepted: 09/08/2022] [Indexed: 12/13/2022]
Abstract
An analytical method for the determination of tetrahydrocannabinol (THC) at trace level in cosmetics is presented. As psychoactive compound, the presence of THC in consumer products should be avoided. However, it might be unintentionally present in cannabidiol-rich or hemp-based products by contamination or isomerization of cannabidiol. Due to the low concentrations expected, a sensitive and selective method is necessary for the analytical control of these products. In this sense, the presented method is based on stir bar sorptive dispersive microextraction (SBSDME) followed by liquid chromatography-tandem mass spectrometry (LC-MS/MS). In this work, a magnetic composite made of CoFe2O4 magnetic nanoparticles embedded in a commercial reverse-phase polymer (Strata™-X-RP) was employed as magnetic sorbent material taking advantage of its affinity to the target analyte. Under the optimized conditions, the method was validated and showed good analytical features in terms of linearity (at least up to 10 ng mL-1), limits of detection and quantification (2.2 and 7.2 ng g-1, respectively) and repeatability (RSD <10%). Moreover, relative recoveries between 99 and 109% were obtained, showing matrix effects were negligible using deuterated THC (THC-D3) as surrogate. This new approach was successfully applied to ten commercially-available cosmetic samples of different matrices, thus showing it is suitable for the analytical control of THC in cosmetic products. The proposed methodology overcomes some of the drawbacks of the previous works with the same purpose, such as the higher limits of detection, time-consuming procedures, and consumption of large volumes of organic solvents.
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Affiliation(s)
- Cristian Azorín
- GICAPC Research Group, Department of Analytical Chemistry, University of Valencia, 46100 Burjassot, Valencia, Spain
| | - Juan L Benedé
- GICAPC Research Group, Department of Analytical Chemistry, University of Valencia, 46100 Burjassot, Valencia, Spain
| | - Alberto Chisvert
- GICAPC Research Group, Department of Analytical Chemistry, University of Valencia, 46100 Burjassot, Valencia, Spain.
| | - Amparo Salvador
- GICAPC Research Group, Department of Analytical Chemistry, University of Valencia, 46100 Burjassot, Valencia, Spain
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Jornet-Martínez N, Biosca-Micó J, Campíns-Falcó P, Herráez-Hernández R. A Colorimetric Method for the Rapid Estimation of the Total Cannabinoid Content in Cannabis Samples. Molecules 2023; 28:molecules28031303. [PMID: 36770970 PMCID: PMC9921926 DOI: 10.3390/molecules28031303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2022] [Revised: 01/23/2023] [Accepted: 01/27/2023] [Indexed: 02/03/2023] Open
Abstract
A colorimetric method for the estimation of the total content of cannabinoids in cannabis samples is proposed. The assay is based on the reaction of these compounds with the reagent Fast Blue B (FBB), which has been immobilized into polydimethylsiloxane (PDMS). The reaction and detection conditions have been established according to the results obtained for the individual cannabinoids Δ9-tetrahydrocannabidiol (THC), cannabidiol (CBD), and cannabinol (CBN), as well as for ethanolic extracts obtained from cannabis samples after ultrasonication. In contact with the extract and under basic conditions, the reagent diffuses from the PDMS device, producing a red-brown solution. The absorbances measured at 500 nm after only 1 min of exposure to the FBB/PDMS composites led to responses proportional to the amounts of the cannabinoids in the reaction media. Those absorbances have been then transformed in total cannabinoid content using CBD as a reference compound. The potential utility of the proposed conditions has been tested by analyzing different cannabis samples. The selectivity towards other plants and drugs has been also evaluated. The present method is proposed as a simple and rapid alternative to chromatographic methods for the estimation of the total content of cannabinoids.
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10
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Yang F, Fu D, Li P, Sui X, Xie Y, Chi J, Liu J, Huang B. Magnetic Molecularly Imprinted Polymers for the Separation and Enrichment of Cannabidiol from Hemp Leaf Samples. ACS OMEGA 2023; 8:1240-1248. [PMID: 36643476 PMCID: PMC9835775 DOI: 10.1021/acsomega.2c06649] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2022] [Accepted: 12/07/2022] [Indexed: 06/17/2023]
Abstract
Cannabidiol (CBD) has attracted immense attention due to its excellent clinical effects in the treatment of various diseases. However, rapid and accurate extraction of CBD from hemp plant concentrates remains a challenge. Thus, novel magnetic molecularly imprinted polymers (CBD-MMIPs) with specific recognizing capability for CBD were synthesized using ethylene glycol dimethacrylate as the cross-linker, CBD as the template, methacrylic acid as the functional monomer, azobisisobutyronitrile as the initiator, and Fe3O4 nanoparticles modified with SiO2 as the magnetic carrier. The morphological, magnetic, and adsorption properties of obtained CBD-MMIPs were characterized by scanning electron microscopy, transmission electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy, vibrating sample magnetometry, surface area and porosity analyses, and various adsorption experiments. The results showed that the CBD-MMIPs had selective specificity and high adsorption capacity for CBD. The adsorption of CBD by CBD-MMIPs could reach equilibrium in a short time (30 min), and the maximum adsorption capacity was as high as 26.51 mg/g. The specific recognition and selectivity properties of CBD-MMIPs to CBD were significantly higher than that of other structural analogues, and the regeneration tests established that the CBD-MMIPs had good recyclability. Furthermore, the CBD-MMIPs could be successfully used as an adsorbent to the extraction of CBD from hemp leaf sample concentrates with high recovery efficiencies (93.46-97.40%).
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Evaluation of an Oral Supplemental Cannabidiol Product for Acceptability and Performance in Mature Horses. Animals (Basel) 2023; 13:ani13020245. [PMID: 36670785 PMCID: PMC9854761 DOI: 10.3390/ani13020245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 01/13/2023] Open
Abstract
Thirty stock type geldings (15 ± 3 years; 556 ± 63 kg BW) were used in a randomized complete design over 28 days to determine the influence of cannabidiol (CBD) oil supplementation levels on body weight, body condition, and blood chemistry. Horses were randomly assigned to one of three dietary treatments (n = 10 per treatment) formulated with canola oil to provide 1.50 mg CBD/kg BW (TRTA), 0.75 mg CBD/kg BW (TRTB), or 0.00 mg CBD/kg BW (canola oil; CTRL). Treatments were top-dressed onto concentrate and individually administered twice daily. Horses were maintained in adjacent dry lots and received coastal bermudagrass hay ad libitum. Body weight and body condition scores (BCS) were obtained every 14 days. On day 0 and 28, blood was collected via jugular venipuncture and serum was harvested to perform a blood chemistry panel and drugs of abuse screening at the Texas Veterinary Medical Diagnostic Laboratory. Data were analyzed using PROC MIXED of SAS (v9.4), and the model included treatment, time, and the treatment × time interaction, and linear and quadratic orthogonal polynomial contrasts to partition sum of squares. Analysis of composited treatment samples revealed lower CBD concentrations than indicated from initial testing by the manufacturer (0.13 mg CBD/kg in TRTA; 0.12 mg CBD/kg in TRTB). At this level of supplementation, canola-based CBD oil was well-accepted by mature horses, banned substances were not detectable in blood, and blood chemistry parameters were not adversely affected as a result of supplementation. More research is warranted to describe the discrepancy between formulated levels compared to tested levels of CBD in the canola-based supplement.
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12
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Blebea NM, Hancu G, Vlad RA, Pricopie A. Applications of Capillary Electrophoresis for the Determination of Cannabinoids in Different Matrices. MOLECULES (BASEL, SWITZERLAND) 2023; 28:molecules28020638. [PMID: 36677696 PMCID: PMC9862621 DOI: 10.3390/molecules28020638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/02/2022] [Revised: 01/03/2023] [Accepted: 01/05/2023] [Indexed: 01/11/2023]
Abstract
Cannabinoids, terpenophenolic chemicals found only in cannabis, are primarily responsible for cannabis pharmacologic effects; nearly 150 distinct cannabinoids have been identified thus far. Among these, the main psychoactive molecule, tetrahydrocannabinol (THC), and the non-psychoactive counterpart, cannabidiol (CBD) are distinguishable. In the past decade, a CBD-containing pharmaceutical preparation was approved by Food and Drug Administration (FDA) for the treatment of drug-resistant epileptic seizures in children, and research trials for a variety of additional medical conditions for which CBD has been suggested as a therapy are being conducted. Additionally, the number of "CBD-containing" dietary supplements, largely available online, is increasing rapidly. Consequently, the necessity for the development of qualitative and quantitative methodologies for the analysis of the bioactive components of Cannabis is rising because of the increase in the production of therapeutic cannabis products. One of the analytical methods with good potential in cannabinoids analysis is capillary electrophoresis (CE). It has advantages related to high separation efficiency, relatively short analysis time, and the small consumption of analytes and reagents which generates relatively lower operational costs than other methods. This review focuses on the use of CE techniques to examine biological matrices and plant materials for the presence of cannabinoids and other bioactive compounds found in cannabis. The advantages, drawbacks, and applicability of the various electromigration approaches are also assessed. The article provides an overview of the "state of the art" and the latest trends in CE-based methods for the determination of cannabinoids.
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Affiliation(s)
- Nicoleta Mirela Blebea
- Department of Pharmacology and Pharmacotherapy, Faculty of Pharmacy, “Ovidius” University of Constanța, 900470 Constanța, Romania
| | - Gabriel Hancu
- Pharmaceutical and Therapeutic Chemistry Department, Faculty of Pharmacy, “George Emil Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Târgu Mures, Romania
- Correspondence:
| | - Robert Alexandru Vlad
- Pharmaceutical Technology and Cosmetology Department, Faculty of Pharmacy, “George Emil Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Târgu Mures, Romania
| | - Andreea Pricopie
- Biochemistry and Chemistry of Environmental Factors Department, Faculty of Pharmacy, “George Emil Palade” University of Medicine, Pharmacy, Science and Technology of Targu Mures, 540142 Târgu Mures, Romania
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13
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Comprehensive Controller for Super Sonic Molecular Beam Gas Chromatograph Mass Spectrometer. SEPARATIONS 2022. [DOI: 10.3390/separations9120417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022] Open
Abstract
This paper presents a new, comprehensive digital circuit used for the control of a novel gas chromatograph mass spectrometer (GC-MS) interface that is based on supersonic molecular beam (SMB). The circuit includes a Texas Instruments 150 MHz digital signal controller (DSC), high voltage amplifiers for 8 independent channels and 4 independent channels of high resolution pulse width modulation (PWM). The circuit, along with a sophisticated embedded program and a custom made personal computer (PC) application, control all aspects of the interface: smart filament emission-current stabilization, static and scanning mass-dependent ion-source voltages, transfer-line heater proportional integral differential (PID) controls with thermocouple feedbacks, on/off valves, relays and several peripheral device controls that enable the full operation of a turbo-molecular vacuum pump, and of gas flow and pressure controllers. All aspects of this comprehensive controller were successfully tested. The signal for the 450 Th ion (C32H66) for example increased by 123% which is a significant increase. It is obvious that correctly tuned dynamic voltages can guarantee the optimal signal for each mass.
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14
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Preliminary evaluation of the use of a disposable electrochemical sensor for selective identification of Δ9-tetrahydrocannabinol and cannabidiol by multivariate analysis. Microchem J 2022. [DOI: 10.1016/j.microc.2022.108108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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15
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Huang S, Qiu R, Fang Z, Min K, van Beek TA, Ma M, Chen B, Zuilhof H, Salentijn GIJ. Semiquantitative Screening of THC Analogues by Silica Gel TLC with an Ag(I) Retention Zone and Chromogenic Smartphone Detection. Anal Chem 2022; 94:13710-13718. [PMID: 36178203 PMCID: PMC9558087 DOI: 10.1021/acs.analchem.2c01627] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
With the ever-evolving cannabis industry, low-cost and high-throughput analytical methods for cannabinoids are urgently needed. Normally, (potentially) psychoactive cannabinoids, typically represented by Δ9-tetrahydrocannabinol (Δ9-THC), and nonpsychoactive cannabinoids with therapeutic benefits, typically represented by cannabidiol (CBD), are the target analytes. Structurally, the former (tetrahydrocannabinolic acid (THCA), cannabinol (CBN), and THC) have one olefinic double bond and the latter (cannabidiolic acid (CBDA), cannabigerol (CBG), and CBD) have two, which results in different affinities toward Ag(I) ions. Thus, a silica gel thin-layer chromatography (TLC) plate with the lower third impregnated with Ag(I) ions enabled within minutes a digital chromatographic separation of strongly retained CBD analogues and poorly retained THC analogues. The resolution (Rs) between the closest two spots from the two groups was 4.7, which is almost 8 times higher than the resolution on unmodified TLC. After applying Fast Blue BB as a chromogenic reagent, smartphone-based color analysis enabled semiquantification of the total percentage of THC analogues (with a limit of detection (LOD) of 11 ng for THC, 54 ng for CBN, and 50 ng for THCA when the loaded volume is 1.0 μL). The method was validated by analyzing mixed cannabis extracts and cannabis extracts. The results correlated with those of high-performance liquid chromatography with ultraviolet detection (HPLC-UV) (R2 = 0.97), but the TLC approach had the advantages of multi-minute analysis time, high throughput, low solvent consumption, portability, and ease of interpretation. In a desiccator, Ag(I)-TLC plates can be stored for at least 3 months. Therefore, this method would allow rapid distinction between high and low THC varieties of cannabis, with the potential for on-site applicability.
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Affiliation(s)
- Si Huang
- Key
Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory
of Chemical Biology & Traditional Chinese Medicine Research of
Ministry of Education, Hunan Normal University, Changsha410081, China,Laboratory
of Organic Chemistry, Wageningen University, Wageningen6708 WE, The Netherlands
| | - Ruiying Qiu
- Key
Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory
of Chemical Biology & Traditional Chinese Medicine Research of
Ministry of Education, Hunan Normal University, Changsha410081, China
| | - Zhengfa Fang
- Key
Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory
of Chemical Biology & Traditional Chinese Medicine Research of
Ministry of Education, Hunan Normal University, Changsha410081, China
| | - Ke Min
- Key
Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory
of Chemical Biology & Traditional Chinese Medicine Research of
Ministry of Education, Hunan Normal University, Changsha410081, China
| | - Teris A. van Beek
- Laboratory
of Organic Chemistry, Wageningen University, Wageningen6708 WE, The Netherlands
| | - Ming Ma
- Key
Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory
of Chemical Biology & Traditional Chinese Medicine Research of
Ministry of Education, Hunan Normal University, Changsha410081, China
| | - Bo Chen
- Key
Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory
of Chemical Biology & Traditional Chinese Medicine Research of
Ministry of Education, Hunan Normal University, Changsha410081, China,
| | - Han Zuilhof
- Key
Laboratory of Phytochemical R&D of Hunan Province and Key Laboratory
of Chemical Biology & Traditional Chinese Medicine Research of
Ministry of Education, Hunan Normal University, Changsha410081, China,Laboratory
of Organic Chemistry, Wageningen University, Wageningen6708 WE, The Netherlands,Department
of Chemical and Materials Engineering, Faculty of Engineering, King Abdulaziz University, Jeddah21589, Saudi Arabia,
| | - Gert IJ. Salentijn
- Laboratory
of Organic Chemistry, Wageningen University, Wageningen6708 WE, The Netherlands,Wageningen
Food Safety Research (WFSR), Wageningen
University & Research, Wageningen6700 AE, The Netherlands,
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16
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Simple Extraction of Cannabinoids from Female Inflorescences of Hemp ( Cannabis sativa L.). MOLECULES (BASEL, SWITZERLAND) 2022; 27:molecules27185868. [PMID: 36144607 PMCID: PMC9504406 DOI: 10.3390/molecules27185868] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/17/2022] [Revised: 09/07/2022] [Accepted: 09/08/2022] [Indexed: 11/25/2022]
Abstract
The high interest in non-psychoactive cannabidiol increases the need for efficient and straightforward cannabidiol (CBD) extraction methods. The research aimed to compare simple methods of cannabinoid extraction that do not require advanced laboratory equipment. This work assesses the content of total CBD and Δ9-tetrahydrocannabinol (Δ9-THC) in popular solvents such as water and ethanol extracts. Hemp raw material was analyzed with Gas Chromatography with a Flame Ionization Detector (GC-FID), while extracts were tested by High-Performance Liquid Chromatography (HPLC). The female inflorescences of three varieties of industrial hemp were tested: Futura 75, KC Dora, and Tygra (different sowing and N fertilization densities). Tygra (T/10/30) showed the highest content of CBD (0.064%) in water extracts. However, in 80% tincture from Futura 75 (F/30/30), a higher CBD content of 1.393% was observed. The use of 96% ethanol for extraction and ultrasound enabled the highest CBD content to be obtained: 2.682% in Futura 75 (F/30/30). Cold water extraction showed no effect on Δ9-THC content, while hot water extraction increased content from 0.001% in KC Dora to 0.002% in Futura 75 (F/30/30) and Tygra, but the changes were statistically insignificant. Application of 80% ethanol revealed the significantly highest content of Δ9-THC in KC Dora, from 0.026% (K/30/90) to 0.057% (K/30/30), as well as in Tygra (T/30/30) (0.036%) and Futura 75 (F/30/30) (0.048%). The use of ethanol extraction in combination with ultrasound could be an efficient method of obtaining cannabinoids.
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17
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Céline D, Cedric DL, Barhdadi S, Michaël C, Kris DB, Eric D. Discrepancies between validated GC-FID and UHPLC-DAD methods for the analysis of Δ-9-THC and CBD in dried hemp flowers. Drug Test Anal 2022; 14:1732-1743. [PMID: 35945003 DOI: 10.1002/dta.3354] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2022] [Revised: 07/27/2022] [Accepted: 08/03/2022] [Indexed: 11/06/2022]
Abstract
Herbal products for smoking containing cannabidiol (CBD) are available as "low-tetrahydrocannabinol cannabis products" in most EU countries. In Belgium, Δ9-tetrahydrocannabinol (THC) content of these products must be less than 0.2 % w/w, which is also the limit for agricultural hemp. For agricultural hemp, the official and only valid method for European regulators is gas-chromatography coupled to flame ionization detector (GC-FID). There is no such method, for smoking products. Many of these herbal for smoking products are analyzed as part of their quality control and have certificate of analysis. During surveillance by official labs, discrepancies were seen between the official results and the certificate of analysis. In this study, a GC-FID method based on the European method and a ultra-high-performance liquid chromatography coupled to diode array detection (UHPLC-DAD) method were validated and applied for samples analysis in order to investigate these discrepancies. The GC-FID method shows better results for the validation parameters, notably it has β- expectation tolerance limits within 10% with a β value of 95% while the validated UHPLC-DAD method has β- expectation tolerance limits within 15% with a β value of 90%. Furthermore, the others parameters evaluated are generally better with the GC-FID method. The statistic t-test shows that the difference between both methods was significantly different for total-THC, but not significantly different for the total-CBD. The authors state that, as for agricultural hemp, the GC-FID method is to be preferred for the analysis of THC and CBD in products for smoking.
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Affiliation(s)
- Duchateau Céline
- ULB, Faculty of Pharmacy, RD3, Pharmacognosy, Bioanalysis and Drug Discovery Unit, Bld Triomphe, Campus Plaine, CP 205/6, Brussels, Belgium.,Sciensano Scientific Direction Physical and Chemical Health Risks, Medicines and health products Rue Juliette Wytsmanstraat, 14, Brussels, Belgium
| | - De Leersnijder Cedric
- ULB, Faculty of Pharmacy, RD3, Pharmacognosy, Bioanalysis and Drug Discovery Unit, Bld Triomphe, Campus Plaine, CP 205/6, Brussels, Belgium.,Sciensano Scientific Direction Physical and Chemical Health Risks, Medicines and health products Rue Juliette Wytsmanstraat, 14, Brussels, Belgium
| | - Sophia Barhdadi
- Sciensano Scientific Direction Physical and Chemical Health Risks, Medicines and health products Rue Juliette Wytsmanstraat, 14, Brussels, Belgium
| | - Canfyn Michaël
- Sciensano Scientific Direction Physical and Chemical Health Risks, Medicines and health products Rue Juliette Wytsmanstraat, 14, Brussels, Belgium
| | - De Braekeleer Kris
- ULB, Faculty of Pharmacy, RD3, Pharmacognosy, Bioanalysis and Drug Discovery Unit, Bld Triomphe, Campus Plaine, CP 205/6, Brussels, Belgium
| | - Deconinck Eric
- ULB, Faculty of Pharmacy, RD3, Pharmacognosy, Bioanalysis and Drug Discovery Unit, Bld Triomphe, Campus Plaine, CP 205/6, Brussels, Belgium.,Sciensano Scientific Direction Physical and Chemical Health Risks, Medicines and health products Rue Juliette Wytsmanstraat, 14, Brussels, Belgium
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18
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Alvarez JC, Pelissier AL, Mura P, Goullé JP. Le cannabidiol (CBD) : que faut-il retenir ? TOXICOLOGIE ANALYTIQUE ET CLINIQUE 2022. [DOI: 10.1016/j.toxac.2022.08.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/15/2022]
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19
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Colella MF, Salvino RA, Gaglianò M, Litrenta F, Oliviero Rossi C, Le Pera A, De Luca G. NMR Spectroscopy Applied to the Metabolic Analysis of Natural Extracts of Cannabis sativa. Molecules 2022; 27:molecules27113509. [PMID: 35684451 PMCID: PMC9182145 DOI: 10.3390/molecules27113509] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2022] [Revised: 05/23/2022] [Accepted: 05/26/2022] [Indexed: 11/21/2022] Open
Abstract
Cannabis sativa is a herbaceous multiple-use species commonly employed to produce fiber, oil, and medicine. It is now becoming popular for the high nutritional properties of its seed oil and for the pharmacological activity of its cannabinoid fraction in inflorescences. The present study aims to apply nuclear magnetic resonance (NMR) spectroscopy to provide useful qualitative and quantitative information on the chemical composition of seed and flower Cannabis extracts obtained by ultra-sound-assisted extraction, and to evaluate NMR as an alternative to the official procedure for the quantification of cannabinoids. The estimation of the optimal ω-6/ω-3 ratio from the 1H NMR spectrum for the seed extracts of the Futura 75 variety and the quantitative results from the 1H and 13C NMR spectra for the inflorescence extracts of the Tiborszallasi and Kompolti varieties demonstrate that NMR technology represents a good alternative to classical chromatography, supplying sufficiently precise, sensitive, rapid, and informative data without any sample pre-treatment. In addition, different extraction procedures were tested and evaluated to compare the elaboration of spectral data with the principal component analysis (PCA) statistical method and the quantitative NMR results: the extracts obtained with higher polarity solvents (acetone or ethanol) were poor in psychotropic agents (THC < LOD) but had an appreciable percentage of both cannabinoids and triacylgliceroles (TAGs). These bioactive-rich extracts could be used in the food and pharmaceutical industries, opening new pathways for the production of functional foods and supplements.
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Affiliation(s)
- Maria Francesca Colella
- Department of Chemistry and Chemical Technologies (CTC), University of Calabria—UNICAL, Via P. Bucci 14C, 87036 Arcavacata di Rende, Italy; (M.F.C.); (R.A.S.); (M.G.); (C.O.R.)
| | - Rosachiara Antonia Salvino
- Department of Chemistry and Chemical Technologies (CTC), University of Calabria—UNICAL, Via P. Bucci 14C, 87036 Arcavacata di Rende, Italy; (M.F.C.); (R.A.S.); (M.G.); (C.O.R.)
| | - Martina Gaglianò
- Department of Chemistry and Chemical Technologies (CTC), University of Calabria—UNICAL, Via P. Bucci 14C, 87036 Arcavacata di Rende, Italy; (M.F.C.); (R.A.S.); (M.G.); (C.O.R.)
| | - Federica Litrenta
- Department of Biomedical, Dental and Morphological and Functional Imaging Sciences (Biomorf), University of Messina, Polo Universitario dell’Annunziata, 98168 Messina, Italy;
| | - Cesare Oliviero Rossi
- Department of Chemistry and Chemical Technologies (CTC), University of Calabria—UNICAL, Via P. Bucci 14C, 87036 Arcavacata di Rende, Italy; (M.F.C.); (R.A.S.); (M.G.); (C.O.R.)
| | - Adolfo Le Pera
- Calabra Maceri e Servizi s.p.a., Via M. Polo 54, 87036 Rende, Italy;
| | - Giuseppina De Luca
- Department of Chemistry and Chemical Technologies (CTC), University of Calabria—UNICAL, Via P. Bucci 14C, 87036 Arcavacata di Rende, Italy; (M.F.C.); (R.A.S.); (M.G.); (C.O.R.)
- Correspondence:
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20
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Luca CD, Buratti A, Umstead W, Franco P, Cavazzini A, Felletti S, Catani M. Investigation of retention behavior of natural cannabinoids on differently substituted polysaccharide-based chiral stationary phases under reversed-phase liquid chromatographic conditions. J Chromatogr A 2022; 1672:463076. [DOI: 10.1016/j.chroma.2022.463076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2022] [Revised: 04/14/2022] [Accepted: 04/15/2022] [Indexed: 10/18/2022]
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21
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Mastellone G, Marengo A, Sgorbini B, Scaglia F, Capetti F, Gai F, Peiretti PG, Rubiolo P, Cagliero C. Characterization and Biological Activity of Fiber-Type Cannabis sativa L. Aerial Parts at Different Growth Stages. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11030419. [PMID: 35161400 PMCID: PMC8838183 DOI: 10.3390/plants11030419] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/14/2022] [Revised: 02/01/2022] [Accepted: 02/02/2022] [Indexed: 05/19/2023]
Abstract
Currently, there is a renewed interest in cannabis-related products in different fields because of the rich phytocomplex of this plant, together with its fiber and agricultural features. In this context, the current study aims to chemically characterize different samples of fiber-type Cannabis sativa L. grown in Italy as a potential health promoting source. An ultrasound-assisted solid-liquid extraction (UA-SLE) method was first developed and optimized to obtain a fingerprinting of the investigated phytocomplex. Analyses were carried out through an ultra high performance liquid chromatography equipped with a photodiode array detector in series with triple quadrupole system with an electrospray ionization (ESI) interface (UHPLC-UV-ESI-MS/MS) and showed that the phytocomplex mainly includes flavonoids and non-psychotomimetic cannabinoids. The method was then applied to characterize and compare 24 samples of fiber-type Cannabis sativa L. aerial parts (mainly stems and leaves), which differed for the growth stages (from mid-vegetative to early flowering), growth land plots, and methods of drying (forced-draft oven or freeze-drying). The quali-quantitative analysis showed that a freeze-drying method seems to better preserve the chemical composition of the samples, while the location of the land plot and the growth stage of the plant (which did not comprise inflorescences) had minor influences on the chemical pattern. These results were also supported by spectrophotometric in-vitro assays (scavenging of 2,2-diphenyl-1-picrylhydrazyl (DPPH•) and 2,2'-azinobis-3-ethyl-benzthiazoline-6-sulphonate (ABTS+•) radicals and inhibitory activity against tyrosinase and elastase enzymes) to investigate the potential biological activity of these samples and the contribution of non-psychotomimetic cannabinoids.
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Affiliation(s)
- Giulia Mastellone
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (G.M.); (A.M.); (B.S.); (F.S.); (F.C.); (P.R.)
| | - Arianna Marengo
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (G.M.); (A.M.); (B.S.); (F.S.); (F.C.); (P.R.)
| | - Barbara Sgorbini
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (G.M.); (A.M.); (B.S.); (F.S.); (F.C.); (P.R.)
| | - Federica Scaglia
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (G.M.); (A.M.); (B.S.); (F.S.); (F.C.); (P.R.)
| | - Francesca Capetti
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (G.M.); (A.M.); (B.S.); (F.S.); (F.C.); (P.R.)
| | - Francesco Gai
- Institute of Sciences of Food Production, National Research Council, 10095 Grugliasco, Italy; (F.G.); (P.G.P.)
| | - Pier Giorgio Peiretti
- Institute of Sciences of Food Production, National Research Council, 10095 Grugliasco, Italy; (F.G.); (P.G.P.)
| | - Patrizia Rubiolo
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (G.M.); (A.M.); (B.S.); (F.S.); (F.C.); (P.R.)
| | - Cecilia Cagliero
- Department of Drug Science and Technology, University of Turin, 10125 Turin, Italy; (G.M.); (A.M.); (B.S.); (F.S.); (F.C.); (P.R.)
- Correspondence: ; Tel.: +39-011-6707133
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22
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Anceschi L, Codeluppi A, Brighenti V, Tassinari R, Taglioli V, Marchetti L, Roncati L, Alessandrini A, Corsi L, Pellati F. Chemical characterization of non-psychoactive Cannabis sativa L. extracts, in vitro antiproliferative activity and induction of apoptosis in chronic myelogenous leukaemia cancer cells. Phytother Res 2022; 36:914-927. [PMID: 35107862 PMCID: PMC9304126 DOI: 10.1002/ptr.7357] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2021] [Revised: 11/22/2021] [Accepted: 12/01/2021] [Indexed: 01/17/2023]
Abstract
In this study, extracts from non‐psychoactive Cannabis sativa L. varieties were characterized by means of ultra high‐performance liquid chromatography coupled with high‐resolution mass spectrometry (UHPLC‐HRMS) and their antiproliferative activity was assessed in vitro. The human chronic myelogenous leukaemia cell line K562 was chosen to investigate the mechanism of cell death. The effect on the cell cycle and cell death was analysed by flow cytometry. Proteins related to apoptosis were studied by western blotting. Mechanical properties of cells were assessed using the Micropipette Aspiration Technique (MAT). The results indicated that the cannabidiol (CBD)‐rich extract inhibited cell proliferation of K562 cell line in a dose‐dependent manner and induced apoptosis via caspase 3 and 7 activation. A significant decrease in the mitochondrial membrane potential was detected, together with the release of cytochrome c into the cytosol. The main apoptotic markers were not involved in the mechanism of cell death. The extract was also able to modify the mechanical properties of cells. Thus, this hemp extract and its pure component CBD deserve further investigation for a possible application against myeloproliferative diseases, also in association with other anticancer drugs.
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Affiliation(s)
- Lisa Anceschi
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Alessandro Codeluppi
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Virginia Brighenti
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
| | - Riccardo Tassinari
- National Laboratory of Molecular Biology and Stem Cell Bioengineering-Eldor Lab, National Institute of Biostructures and Biosystems (NIBB), Innovation Accelerator, CNR, Bologna, Italy
| | - Valentina Taglioli
- Department of Experimental, Diagnostic and Specialty Medicine (DIMES), Alma Mater Studiorum University of Bologna, Bologna, Italy
| | - Lucia Marchetti
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Clinical and Experimental Medicine PhD Program, University of Modena and Reggio Emilia, Modena, Italy
| | - Luca Roncati
- Institute of Pathology, University of Modena and Reggio Emilia, Modena, Italy
| | - Andrea Alessandrini
- Department of Physics, Informatics and Mathematics, University of Modena and Reggio Emilia, Modena, Italy.,National Research Council (CNR), CNR-Nanoscience Institute-S3, Modena, Italy.,Biostructures and Biosystems National Institute (INBB) Inter-University Consortium, Rome, Italy
| | - Lorenzo Corsi
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy.,Biostructures and Biosystems National Institute (INBB) Inter-University Consortium, Rome, Italy
| | - Federica Pellati
- Department of Life Sciences, University of Modena and Reggio Emilia, Modena, Italy
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23
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Cannabis sativa Bioactive Compounds and Their Extraction, Separation, Purification, and Identification Technologies: An Updated Review. Trends Analyt Chem 2022. [DOI: 10.1016/j.trac.2022.116554] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
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24
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Astray G, Mejuto JC, Xiao J, Simal-Gandara J. Benefits, toxicity and current market of cannabidiol in edibles. Crit Rev Food Sci Nutr 2022; 63:5800-5812. [PMID: 34989307 DOI: 10.1080/10408398.2021.2024493] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
The commercialization of products with cannabidiol (CBD) has undergone a significant increase. These products can be presented in different forms such as baked goods, gummies or beverages (such as kombucha, beer or teas, among others) using wide concentrations ranges. The use of CBD in edibles favors its consumption, for medicinal users, during the work week, avoid its possible social stigma and facilitates its transport. These products can be purchased on store shelves and online. There is a large number of specialized studies, in which the possible advantages of CBD consumption are described in the preclinical and clinical trials. It is also necessary to recognize the existence of other works revealing that the excessive consumption of CBD could have some repercussions on health. In this review, it is analyzed the composition and properties of Cannabis sativa L., the health benefits of cannabinoids (focusing on CBD), its consumption, its possible toxicological effects, a brief exposition of the extraction process, and a collection of different products that contain CBD in its composition.
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Affiliation(s)
- Gonzalo Astray
- Universidade de Vigo, Departamento de Química Física, Facultade de Ciencias, Ourense, España
| | - Juan C Mejuto
- Universidade de Vigo, Departamento de Química Física, Facultade de Ciencias, Ourense, España
| | - Jianbo Xiao
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Ourense, Spain
| | - Jesus Simal-Gandara
- Universidade de Vigo, Nutrition and Bromatology Group, Department of Analytical Chemistry and Food Science, Faculty of Science, Ourense, Spain
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25
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Fernández S, Carreras T, Castro R, Perelmuter K, Giorgi V, Vila A, Rosales A, Pazos M, Moyna G, Carrera I, Bollati-Fogolín M, García-Carnelli C, Carrera I, Vieitez I. A comparative study of supercritical fluid and ethanol extracts of cannabis inflorescences: Chemical profile and biological activity. J Supercrit Fluids 2022. [DOI: 10.1016/j.supflu.2021.105385] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
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26
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Brighenti V, Marchetti L, Anceschi L, Protti M, Verri P, Pollastro F, Mercolini L, Bertelli D, Zanardi C, Pellati F. Separation and non-separation methods for the analysis of cannabinoids in Cannabis sativa L. J Pharm Biomed Anal 2021; 206:114346. [PMID: 34537622 DOI: 10.1016/j.jpba.2021.114346] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/30/2021] [Revised: 08/13/2021] [Accepted: 08/25/2021] [Indexed: 01/21/2023]
Abstract
Cannabis sativa L. is a plant known all over the world, due to its history, bioactivity and also social impact. It is chemically complex with an astonishing ability in the biosynthesis of many secondary metabolites belonging to different chemical classes. Among them, cannabinoids are the most investigated ones, given their pharmacological relevance. In order to monitor the composition of the plant material and ensure the efficacy and safety of its derived products, extraction and analysis of cannabinoids play a crucial role. In this context, in addition to a conventional separation method based on HPLC with UV/DAD detection, a new strategy based on a non-separation procedure, such as 13C-qNMR, may offer several advantages, such as reduced solvent consumption and simultaneous acquisition of the quali/quantitative data related to many analytes. In the light of all the above, the aim of this work is to compare the efficiency of the above-mentioned analytical techniques for the study of the main cannabinoids in different samples of cannabis inflorescences, belonging to fibre-type, recreational and medical varieties. The 13C-qNMR method here proposed for the first time for the quantification of both psychoactive and non-psychoactive cannabinoids in different cannabis varieties provided reliable results in comparison to the more common and consolidated HPLC technique.
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Affiliation(s)
- Virginia Brighenti
- Department of Life Sciences (DSV), University of Modena and Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
| | - Lucia Marchetti
- Department of Life Sciences (DSV), University of Modena and Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy; Clinical and Experimental Medicine (CEM) PhD Program, University of Modena and Reggio Emilia, Via G. Campi 287, 41125 Modena, Italy
| | - Lisa Anceschi
- Department of Life Sciences (DSV), University of Modena and Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy; Clinical and Experimental Medicine (CEM) PhD Program, University of Modena and Reggio Emilia, Via G. Campi 287, 41125 Modena, Italy
| | - Michele Protti
- Department of Pharmacy and Biotechnology (FaBiT), Alma Mater Studiorum University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Patrizia Verri
- Department of Biomedical, Metabolic and Neural Sciences, University of Modena and Reggio Emilia, Via del Pozzo 71, 41124 Modena, Italy
| | - Federica Pollastro
- Department of Pharmaceutical Sciences, University of Eastern Piedmont, Largo Donegani 2, 28100 Novara, Italy
| | - Laura Mercolini
- Department of Pharmacy and Biotechnology (FaBiT), Alma Mater Studiorum University of Bologna, Via Belmeloro 6, 40126 Bologna, Italy
| | - Davide Bertelli
- Department of Life Sciences (DSV), University of Modena and Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy
| | - Chiara Zanardi
- Deparment of Chemical and Geological Sciences (DSCG), University of Modena and Reggio Emilia, Via G. Campi 103, 41125 Modena, Italy
| | - Federica Pellati
- Department of Life Sciences (DSV), University of Modena and Reggio Emilia, Via G. Campi 103, 41125, Modena, Italy.
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27
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Capriotti AL, Cannazza G, Catani M, Cavaliere C, Cavazzini A, Cerrato A, Citti C, Felletti S, Montone CM, Piovesana S, Laganà A. Recent applications of mass spectrometry for the characterization of cannabis and hemp phytocannabinoids: From targeted to untargeted analysis. J Chromatogr A 2021; 1655:462492. [PMID: 34507140 DOI: 10.1016/j.chroma.2021.462492] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2021] [Revised: 08/17/2021] [Accepted: 08/17/2021] [Indexed: 11/17/2022]
Abstract
This review is a collection of recent applications of mass spectrometry studies for the characterization of phytocannabinoids in cannabis and hemp plant material and related products. The focus is mostly on recent applications using mass spectrometry as detector, in hyphenation to typical separation techniques (i.e., liquid chromatography or gas chromatography), but also with less common couplings or by simple direct analysis. The papers are described starting from the most common approach for targeted quantitative analysis, with applications using low-resolution mass spectrometry equipment, but also with the introduction of high-resolution mass analyzers as the detectors. This reflects a common trend in this field, and introduces the most recent applications using high-resolution mass spectrometry for untargeted analysis. The different approaches used for untargeted analysis are then described, from simple retrospective analysis of compounds without pure standards, through untargeted metabolomics strategies, and suspect screening methods, which are the ones currently allowing to achieve the most detailed qualitative characterization of the entire phytocannabinoid composition, including minor compounds which are usually overlooked in targeted studies and in potency evaluation. These approaches also represent powerful strategies to answer questions on biological and pharmacological activity of cannabis, and provide a sound technology for improved classification of cannabis varieties. Finally, open challenges are discussed for future directions in the detailed study of complex phytocannabinoid mixtures.
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Affiliation(s)
- Anna Laura Capriotti
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - Giuseppe Cannazza
- CNR NANOTEC, Campus Ecotekne, University of Salento, Via Monteroni, Lecce 73100, Italy; Department of Life Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi 287, Modena 41125, Italy
| | - Martina Catani
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, via L. Borsari 46, Ferrara 44121, Italy
| | - Chiara Cavaliere
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - Alberto Cavazzini
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, via L. Borsari 46, Ferrara 44121, Italy
| | - Andrea Cerrato
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - Cinzia Citti
- CNR NANOTEC, Campus Ecotekne, University of Salento, Via Monteroni, Lecce 73100, Italy; Department of Life Sciences, University of Modena and Reggio Emilia, Via Giuseppe Campi 287, Modena 41125, Italy
| | - Simona Felletti
- Department of Chemical, Pharmaceutical and Agricultural Sciences, University of Ferrara, via L. Borsari 46, Ferrara 44121, Italy
| | - Carmela Maria Montone
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy
| | - Susy Piovesana
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy.
| | - Aldo Laganà
- Department of Chemistry, Sapienza University of Rome, Piazzale Aldo Moro 5, Rome 00185, Italy; CNR NANOTEC, Campus Ecotekne, University of Salento, Via Monteroni, Lecce 73100, Italy
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28
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Cannabinoid Formulations and Delivery Systems: Current and Future Options to Treat Pain. Drugs 2021; 81:1513-1557. [PMID: 34480749 PMCID: PMC8417625 DOI: 10.1007/s40265-021-01579-x] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 07/19/2021] [Indexed: 12/24/2022]
Abstract
The field of Cannabis sativa L. research for medical purposes has been rapidly advancing in recent decades and a growing body of evidence suggests that phytocannabinoids are beneficial for a range of conditions. At the same time impressing development has been observed for formulations and delivery systems expanding the potential use of cannabinoids as an effective medical therapy. The objective of this review is to present the most recent results from pharmaceutical companies and research groups investigating methods to improve cannabinoid bioavailability and to clearly establish its therapeutic efficacy, dose ranges, safety and also improve the patient compliance. Particular focus is the application of cannabinoids in pain treatment, describing the principal cannabinoids employed, the most promising delivery systems for each administration routes and updating the clinical evaluations. To offer the reader a wider view, this review discusses the formulation starting from galenic preparation up to nanotechnology approaches, showing advantages, limits, requirements needed. Furthermore, the most recent clinical data and meta-analysis for cannabinoids used in different pain management are summarized, evaluating their real effectiveness, in order also to spare opioids and improve patients' quality of life. Promising evidence for pain treatments and for other important pathologies are also reviewed as likely future directions for cannabinoids formulations.
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Amirav A, Neumark B, Margolin Eren KJ, Fialkov AB, Tal N. Cannabis and its cannabinoids analysis by gas chromatography-mass spectrometry with Cold EI. JOURNAL OF MASS SPECTROMETRY : JMS 2021; 56:e4726. [PMID: 33955098 DOI: 10.1002/jms.4726] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/08/2021] [Revised: 03/14/2021] [Accepted: 03/15/2021] [Indexed: 06/12/2023]
Abstract
Cannabis extracts and products were analyzed by gas chromatography-mass spectrometry (GC-MS) with Cold EI for their full content including terpenes, sesquiterpenes, sesquiterpinols, fatty acids, delta 9-tetrahydrocannabinol (THC), cannabidiol (CBD), other cannabinoids, hydrocarbons, sterols, diglycerides, triglycerides, and impurities. GC-MS with Cold EI is based on interfacing GC and MS with supersonic molecular beams (SMB) along with electron ionization of vibrationally cold sample compounds in the SMB in a fly-through ion source (hence the name Cold EI). GC-MS with Cold EI improves all the performance aspects of GC-MS, enables the analysis of Cannabinoids with OH groups without derivatization, while providing enhanced molecular ions for improved identification, and enables internal quantitation without calibration. We found over 50 cannabinoid compounds including a new one with a Cold EI mass spectrum very similar to delta 9-THC as well as relatively large cannabinoids with molecular weight above m/z = 400. Because the analysis was universal in full scan and not targeted, we found impurities such as bromo CBD and fluticasone propionate and could monitor the formation of oxidized CBD during decarboxylation. In addition, GC-MS with Cold EI enabled nontargeted full analysis of terpenes, sesquiterpenes, and sesquiterpinols in cannabis extracts with good internal quantitation. GC-MS with Cold EI further served with very good sensitivity for the concentration determination of delta 9-THC in CBD-related products. Finally, cannabis drugs such as EP-1 used in Israel for treatment of epilepsy and for children with autism spectrum disorder (ASD) were analyzed for their full cannabinoids content for learning on the entourage effect and for drug activity optimization.
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Affiliation(s)
- Aviv Amirav
- School of Chemistry, Tel Aviv University, Tel Aviv, Israel
- Aviv Analytical Ltd, Hod Hasharon, Israel
| | - Benny Neumark
- School of Chemistry, Tel Aviv University, Tel Aviv, Israel
| | | | | | - Noam Tal
- School of Chemistry, Tel Aviv University, Tel Aviv, Israel
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Reyes-Garcés N, Myers C. Analysis of the California list of pesticides, mycotoxins, and cannabinoids in chocolate using liquid chromatography and low-pressure gas chromatography-based platforms. J Sep Sci 2021; 44:2564-2576. [PMID: 33908699 PMCID: PMC8362103 DOI: 10.1002/jssc.202001265] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/22/2021] [Accepted: 04/23/2021] [Indexed: 01/27/2023]
Abstract
Cannabis legalization has led to the development of a variety of cannabis-infused products with edibles being one of the most popular. The state of California has implemented comprehensive cannabis testing regulations requiring the analysis of cannabinoids (potency) and contaminants, such as pesticides and mycotoxins, in any type of cannabis good. In this work, we propose an analytical workflow for the quantification of the California list of pesticides and mycotoxins, as well as six cannabinoids, in chocolate, using 3 mL of solvent for the extraction. For the analysis of pesticides and mycotoxins, clean-up steps employing a C18 solid-phase extraction cartridge and dispersive solid-phase extraction sorbents were implemented. Gas chromatography amenable pesticides were analyzed using low-pressure gas chromatography coupled to tandem mass spectrometry which allowed for a total method run of 12 min. Both liquid chromatography and gas chromatography instrumental methods had the same analysis time, ensuring satisfactory sample throughput. For the determination of cannabinoids, a dilution of the original organic extract collected for pesticides and mycotoxins analysis (and prior to any clean-up step) was used. Excellent results in terms of analytical figures of merit were obtained for all target analytes.
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Affiliation(s)
- Nathaly Reyes-Garcés
- Department of Research & Development, Restek Corporation, Bellefonte, Pennsylvania, USA
| | - Colton Myers
- Department of Research & Development, Restek Corporation, Bellefonte, Pennsylvania, USA
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31
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A Rapid and Sensitive Method for the Determination of Cannabidiol in Cosmetic Products by Liquid Chromatography–Tandem Mass Spectrometry. COSMETICS 2021. [DOI: 10.3390/cosmetics8020030] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Cannabidiol is a phytocannabinoid with proven pharmacological properties that is also used in the cosmetic industry for its sebostatic and antioxidant activities, being considered a new anti-aging ally. An analytical method is proposed for the determination of CBD in cosmetic products by liquid chromatography with tandem mass spectrometry, after leaching the CBD from the cosmetic matrix with ethanol. Low instrumental limits of detection (0.22 ng mL−1) and quantification (0.74 ng mL−1) allow the determination of CBD at trace levels without needing preconcentration, whereas the wide linearity of the method allows the determination of CBD in more concentrated samples without high dilution. The method was successfully applied to the analysis of six cosmetic products and a raw material. The proposed method is suitable for the quality control of cosmetic products containing CBD, being able to quickly and easily determine this compound, ensuring that its concentration in the finished product is the desired one.
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32
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Delta9-THC determination by the EU official method: evaluation of measurement uncertainty and compliance assessment of hemp samples. Anal Bioanal Chem 2021; 413:3399-3410. [PMID: 33755770 PMCID: PMC8105209 DOI: 10.1007/s00216-021-03283-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Revised: 02/26/2021] [Accepted: 03/09/2021] [Indexed: 01/15/2023]
Abstract
Hemp cultivation is living a period of renewed interest worldwide after long years of opposition and abandonment. The European Union (EU) allows and subsidizes the growing of fiber and oilseed cultivars of Cannabis sativa L. with respect to the THC content limit of 0.2%. The EU method for the quantitative determination of Δ9-tetrahydrocannabinol (THC) content in hemp varieties provides to apply a tolerance of 0.03 g of THC per 100 g of sample concerning compliance assessment to that limit. However, the method does not report any precision data, especially useful as a function of THC content to evaluate measurement uncertainty and therefore to establish the conformity of hemp at different THC legal limits. Measurement uncertainty of the method by both bottom-up and top-down approach, besides repeatability and reproducibility, was investigated and estimated in the THC concentration range 0.2-1.0%, which includes the different legal limits set out for hemp around the world. We proposed Decision Rules for conformity of hemp showing that a non-compliant declaration beyond reasonable doubt should be stated when the THC content, as a mean result on a duplicate analysis, exceeds the limit by at least 11-15%, depending on THC limit. We highlighted other issues concerning practical aspects of hemp analysis, from sampling to evaluation of results, as well as the need to carry out collaborative studies on the EU method.
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