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Petek A, Bren U, Hostnik G. How deprotonation of cohumulone and colupulone influence their UV/Vis and CD spectrum. SPECTROCHIMICA ACTA. PART A, MOLECULAR AND BIOMOLECULAR SPECTROSCOPY 2024; 320:124593. [PMID: 38865884 DOI: 10.1016/j.saa.2024.124593] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2024] [Revised: 05/22/2024] [Accepted: 06/02/2024] [Indexed: 06/14/2024]
Abstract
Cohumulone and colupulone are representatives of α- and β-acids, respectively. These compounds are important antimicrobial hop (Humulus lupulus) constituents, where cohumulone is an important source of the bitter taste of beer. In this study, we examined the pH dependence of UV/Vis spectra of both compounds while CD spectra of cohumulone were also measured at various wavelengths. This facilitated the examination of the protolytic equilibrium of both compounds, where the second pKa value of cohumulone was determined for the first time. Additionally, comparing experimental spectra with spectra calculated using time-dependent density functional theory (TD-DFT) enabled the determination of the most likely deprotonation positions and corresponding species most likely present in the aqueous solution at various pH values. Last but not least, comparing calculated and experimental CD spectra of cohumulone facilitated the determination of the absolute stereoconfiguration of cohumulone.
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Affiliation(s)
- Anja Petek
- Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova ulica 17, SI-2000, Maribor, Slovenia.
| | - Urban Bren
- Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova ulica 17, SI-2000, Maribor, Slovenia; Faculty of Mathematics, Natural Sciences and Information Technologies, University of Primorska, Glagoljaška ulica 8, SI-6000, Koper, Slovenia; Institute of Environmental Protection and Sensors, Beloruska ulica 7, SI-2000, Maribor, Slovenia.
| | - Gregor Hostnik
- Faculty of Chemistry and Chemical Technology, University of Maribor, Smetanova ulica 17, SI-2000, Maribor, Slovenia.
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Alves MDR, Nascimento RDP, da Fonseca Machado AP, Dos Santos P, Aledo E, Morandi Vuolo M, Cavalheiro CO, Giaculi VO, Berilli P, Dos Santos NM, Marostica Junior MR. Hop ( Humulus lupulus L.) extract reverts glycaemic imbalance and cognitive impairment in an animal model of obesity. Food Funct 2024; 15:7669-7680. [PMID: 38961720 DOI: 10.1039/d4fo02062f] [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: 07/05/2024]
Abstract
The rates of overweight and obesity around the world have increased in past years. The body's adipose tissue stimulates the antioxidant and oxidation imbalance capacity at the cellular level. This scenario favors an inflammatory low-grade systemic condition starting with insulin resistance, which in turn may involve diabetes mellitus type 2 and cognitive decline afterward. Neurological diseases have been correlated to senile age diseases over time. This scenario calls for a change in the incidence of obesity in the younger generation. An unhealthy dietary consumption together with sedentary habits might lead to poor gut absorption of nutrients. Several plants and foods have bioactive compounds that can reduce or inhibit radical scavengers, reactive oxygen species, and metal ion complexes that threaten the cerebral defense system. The bitter acids from hops (Humulus lupulus L.) have been demonstrated to have promising effects on lipid and carbohydrate metabolism improvement, reducing inflammatory responses through alpha acids, beta acids, and analogs action. Therefore, the current study aimed to investigate the bioactivity of hop bitter acids in obese and lean mice. For that, a dry hop extract (DHE) was obtained by applying carbon dioxide as the fluid of supercritical extraction. Afterward, seventy-eight male mice of the C57BL/6J strain were weighed and randomly distributed into six groups of 13 animals each according to the diet offered: (NO) normolipidic diet, (NO1) normolipidic diet containing 0.35% alpha acids, (NO2) normolipidic diet containing 3.5% alpha acids, (HP) hyperlipidic diet, (HP1) hyperlipidic diet containing 0.35% alpha acids, and (HP2) hyperlipidic diet containing 3.5% alpha acids. After applying the glycemic tolerance and insulin tolerance tests, a better stabilization of glycemia levels and weight gain among those animals fed with DHE (NO2 and HP2) were observed in comparison to the obese control group (HP) (p < 0.05). There was also an amelioration of antioxidant capacity observed by checking the enzymatic profile by SOD and an apparent mitigation of brain degeneration by checking GSK3β and p-IRS1 proteins expression (p < 0.05). The y-maze cognitive test applied to highlight possible obesity-harmful animal brains did not indicate a statistical difference between the groups. Although the weekly dietary intake between the obese HP2 group (33.32 ± 4.11, p < 0.05) and control HP (42.3 ± 5.88, p < 0.05) was different. The bioactive compounds present in DHE have demonstrated relevant effects on glycemic control, insulin signaling, and the consequent modulatory action of the obesity-related markers with the brain's inflammatory progression.
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Affiliation(s)
- Mariana da Rocha Alves
- Universidade Estadual de Campinas, School of Food Engineering, Department of Food Science and Nutrition, Laboratory of Nutrition and Metabolism, 80 Rua Monteiro Lobato, 13083-862 Campinas, São Paulo, Brazil.
| | - Roberto de Paula Nascimento
- Universidade Estadual de Campinas, School of Food Engineering, Department of Food Science and Nutrition, Laboratory of Nutrition and Metabolism, 80 Rua Monteiro Lobato, 13083-862 Campinas, São Paulo, Brazil.
| | - Ana Paula da Fonseca Machado
- Universidade Federal da Grande Dourados, Faculdade de Engenharia, Rod. Dourados-Itahum Km 12, C.P.: 79804-970 - Dourados, Mato Grosso do Sul, Brasil
| | - Philipe Dos Santos
- Rubian xtratos LTDA, Rua do Café, 375 Vila Valle, 13174-000, Sumaré, São Paulo, Brazil
| | - Eduardo Aledo
- Rubian xtratos LTDA, Rua do Café, 375 Vila Valle, 13174-000, Sumaré, São Paulo, Brazil
| | - Milena Morandi Vuolo
- Rubian xtratos LTDA, Rua do Café, 375 Vila Valle, 13174-000, Sumaré, São Paulo, Brazil
| | - Carolina Oliveira Cavalheiro
- Universidade Estadual de Campinas, School of Food Engineering, Department of Food Science and Nutrition, Laboratory of Nutrition and Metabolism, 80 Rua Monteiro Lobato, 13083-862 Campinas, São Paulo, Brazil.
| | - Vinícius Oliveira Giaculi
- Universidade Estadual de Campinas, School of Food Engineering, Department of Food Science and Nutrition, Laboratory of Nutrition and Metabolism, 80 Rua Monteiro Lobato, 13083-862 Campinas, São Paulo, Brazil.
| | - Patrícia Berilli
- Universidade Estadual de Campinas, School of Food Engineering, Department of Food Science and Nutrition, Laboratory of Nutrition and Metabolism, 80 Rua Monteiro Lobato, 13083-862 Campinas, São Paulo, Brazil.
| | - Nathália Medina Dos Santos
- Universidade Estadual de Campinas, School of Food Engineering, Department of Food Science and Nutrition, Laboratory of Nutrition and Metabolism, 80 Rua Monteiro Lobato, 13083-862 Campinas, São Paulo, Brazil.
| | - Mario Roberto Marostica Junior
- Universidade Estadual de Campinas, School of Food Engineering, Department of Food Science and Nutrition, Laboratory of Nutrition and Metabolism, 80 Rua Monteiro Lobato, 13083-862 Campinas, São Paulo, Brazil.
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Ramos FP, Iwamoto L, Piva VH, Teixeira SP. Updating the Knowledge on the Secretory Machinery of Hops ( Humulus lupulus L., Cannabaceae). PLANTS (BASEL, SWITZERLAND) 2024; 13:864. [PMID: 38592855 PMCID: PMC10974171 DOI: 10.3390/plants13060864] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/27/2024] [Revised: 03/13/2024] [Accepted: 03/15/2024] [Indexed: 04/11/2024]
Abstract
Cannabaceae species garner attention in plant research due to their diverse secretory structures and pharmacological potential associated with the production of secondary metabolites. This study aims to update our understanding of the secretory system in Hops (Humulus lupulus L.), an economically important species especially known for its usage in beer production. For that, stems, leaves, roots, and inflorescences were collected and processed for external morphology, anatomical, histochemical, ultrastructural and cytochemical analyses of the secretory sites. Our findings reveal three types of secretory structures comprising the secretory machinery of Hops: laticifer, phenolic idioblasts and glandular trichomes. The laticifer system is articulated, anastomosing and unbranched, traversing all plant organs, except the roots. Phenolic idioblasts are widely dispersed throughout the leaves, roots and floral parts of the species. Glandular trichomes appear as two distinct morphological types: capitate (spherical head) and peltate (radial head) and are found mainly in foliar and floral parts. The often-mixed chemical composition in the secretory sites serves to shield the plant from excessive UVB radiation, elevated temperatures, and damage inflicted by herbivorous animals or pathogenic microorganisms. Besides the exudate from peltate glandular trichomes (lupulin glands), latex and idioblast content are also likely contributors to the pharmacological properties of different Hop varieties, given their extensive presence in the plant body.
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Affiliation(s)
- Felipe Paulino Ramos
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Universidade de São Paulo (USP), Ribeirão Preto 14040-903, Brazil; (F.P.R.); (L.I.); (V.H.P.)
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Ribeirão Preto 14040-901, Brazil
| | - Lucas Iwamoto
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Universidade de São Paulo (USP), Ribeirão Preto 14040-903, Brazil; (F.P.R.); (L.I.); (V.H.P.)
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Ribeirão Preto 14040-901, Brazil
| | - Vítor Hélio Piva
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Universidade de São Paulo (USP), Ribeirão Preto 14040-903, Brazil; (F.P.R.); (L.I.); (V.H.P.)
- Departamento de Biologia, Faculdade de Filosofia, Ciências e Letras de Ribeirão Preto (FFCLRP), Universidade de São Paulo (USP), Ribeirão Preto 14040-901, Brazil
| | - Simone Pádua Teixeira
- Departamento de Ciências Farmacêuticas, Faculdade de Ciências Farmacêuticas de Ribeirão Preto (FCFRP), Universidade de São Paulo (USP), Ribeirão Preto 14040-903, Brazil; (F.P.R.); (L.I.); (V.H.P.)
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Paguet AS, Siah A, Lefèvre G, Vandenberghe M, Lutun D, Degardin N, Samaillie J, Mathiron D, Dermont C, Michels F, Fauconnier ML, Chollet S, Molinié R, Fontaine JX, Sahpaz S, Rivière C. Phytochemical characterisation and aromatic potential for brewing of wild hops (Humulus lupulus L.) from Northern France: Towards a lead for local hop varieties. Food Chem 2024; 433:137302. [PMID: 37678125 DOI: 10.1016/j.foodchem.2023.137302] [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: 06/07/2023] [Revised: 08/24/2023] [Accepted: 08/25/2023] [Indexed: 09/09/2023]
Abstract
In the current context of developing aromatic beers, our study aims at deciphering the chemical characterisation of cones from 39 wild hop genotypes collected in the North of France and replanted in an experimental hop farm, as well as 10 commercial and 3 heirloom varieties, using HS-SPME/GC-MS for the volatile compounds, UHPLC-UV for phenolic compound quantification, and UHPLC-IMS-HRMS for untargeted metabolomics. These analyses revealed a strong opposition between wild accessions and reference varieties, and an original chemical composition of some genotypes. 27 beers were produced with the same recipe, analysed by SBSE-GC-MS and evaluated by panellists. The unique difference relates to the hops to be assessed in order to determine their sensory profile. The different datasets were compared by OPLS-DA analysis in order to identify chemical markers which may influence the hop aromatic potential. Our results highlight the aromatic potential of some wild accessions, close to the commercial variety Cascade.
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Affiliation(s)
- Anne-Sophie Paguet
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Ali Siah
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Gabriel Lefèvre
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Mathilde Vandenberghe
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - David Lutun
- High School Biotech Douai - Campus Wagnonville, 458 Rue de la Motte Julien, 59500 Douai, France
| | - Norman Degardin
- High School Biotech Douai - Campus Wagnonville, 458 Rue de la Motte Julien, 59500 Douai, France
| | - Jennifer Samaillie
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - David Mathiron
- University of Picardie Jules Verne (UPJV), Analytical Platform, Rue Dallery - Passage du sourire d'Avril, 80039 Amiens cedex, France
| | - Charles Dermont
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Franck Michels
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Marie-Laure Fauconnier
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Sylvie Chollet
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Roland Molinié
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Jean-Xavier Fontaine
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Sevser Sahpaz
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France
| | - Céline Rivière
- Joint Research Unit 1158 BioEcoAgro, University of Lille, Junia-ISA, University of Liège, University of Picardy Jules Verne, University of Artois, ULCO, INRAE, Villeneuve d'Ascq, France.
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Al-Khazaleh AK, Zhou X, Bhuyan DJ, Münch GW, Al-Dalabeeh EA, Jaye K, Chang D. The Neurotherapeutic Arsenal in Cannabis sativa: Insights into Anti-Neuroinflammatory and Neuroprotective Activity and Potential Entourage Effects. Molecules 2024; 29:410. [PMID: 38257323 PMCID: PMC10821245 DOI: 10.3390/molecules29020410] [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: 12/12/2023] [Revised: 01/09/2024] [Accepted: 01/12/2024] [Indexed: 01/24/2024] Open
Abstract
Cannabis, renowned for its historical medicinal use, harbours various bioactive compounds-cannabinoids, terpenes, and flavonoids. While major cannabinoids like delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD) have received extensive scrutiny for their pharmacological properties, emerging evidence underscores the collaborative interactions among these constituents, suggesting a collective therapeutic potential. This comprehensive review explores the intricate relationships and synergies between cannabinoids, terpenes, and flavonoids in cannabis. Cannabinoids, pivotal in cannabis's bioactivity, exhibit well-documented analgesic, anti-inflammatory, and neuroprotective effects. Terpenes, aromatic compounds imbuing distinct flavours, not only contribute to cannabis's sensory profile but also modulate cannabinoid effects through diverse molecular mechanisms. Flavonoids, another cannabis component, demonstrate anti-inflammatory, antioxidant, and neuroprotective properties, particularly relevant to neuroinflammation. The entourage hypothesis posits that combined cannabinoid, terpene, and flavonoid action yields synergistic or additive effects, surpassing individual compound efficacy. Recognizing the nuanced interactions is crucial for unravelling cannabis's complete therapeutic potential. Tailoring treatments based on the holistic composition of cannabis strains allows optimization of therapeutic outcomes while minimizing potential side effects. This review underscores the imperative to delve into the intricate roles of cannabinoids, terpenes, and flavonoids, offering promising prospects for innovative therapeutic interventions and advocating continued research to unlock cannabis's full therapeutic potential within the realm of natural plant-based medicine.
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Affiliation(s)
- Ahmad K. Al-Khazaleh
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia; (X.Z.); (D.J.B.); (G.W.M.); (K.J.)
| | - Xian Zhou
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia; (X.Z.); (D.J.B.); (G.W.M.); (K.J.)
| | - Deep Jyoti Bhuyan
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia; (X.Z.); (D.J.B.); (G.W.M.); (K.J.)
- School of Science, Western Sydney University, Penrith, NSW 2751, Australia
| | - Gerald W. Münch
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia; (X.Z.); (D.J.B.); (G.W.M.); (K.J.)
- Pharmacology Unit, School of Medicine, Western Sydney University, Penrith, NSW 2751, Australia
| | - Elaf Adel Al-Dalabeeh
- Department of Biological Sciences, School of Science, University of Jordan, Amman 11942, Jordan;
| | - Kayla Jaye
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia; (X.Z.); (D.J.B.); (G.W.M.); (K.J.)
| | - Dennis Chang
- NICM Health Research Institute, Western Sydney University, Penrith, NSW 2751, Australia; (X.Z.); (D.J.B.); (G.W.M.); (K.J.)
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Percaccio E, De Angelis M, Acquaviva A, Nicotra G, Ferrante C, Mazzanti G, Di Giacomo S, Nencioni L, Di Sotto A. ECHOPvir: A Mixture of Echinacea and Hop Extracts Endowed with Cytoprotective, Immunomodulatory and Antiviral Properties. Nutrients 2023; 15:4380. [PMID: 37892456 PMCID: PMC10609862 DOI: 10.3390/nu15204380] [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: 09/14/2023] [Revised: 10/06/2023] [Accepted: 10/11/2023] [Indexed: 10/29/2023] Open
Abstract
Respiratory viral infections continue to pose significant challenges, particularly for more susceptible and immunocompromised individuals. Nutraceutical strategies have been proposed as promising strategies to mitigate their impact and improve public health. In the present study, we developed a mixture of two hydroalcoholic extracts from the aerial parts of Echinacea purpurea (L.) Moench (ECP) and the cones of Humulus lupulus L. (HOP) that can be harnessed in the prevention and treatment of viral respiratory diseases. The ECP/HOP mixture (named ECHOPvir) was characterized for the antioxidant and cytoprotective properties in airway cells. Moreover, the immunomodulating properties of the mixture in murine macrophages against antioxidant and inflammatory stimuli and its antiviral efficacy against the PR8/H1N1 influenza virus were assayed. The modulation of the Nrf2 was also investigated as a mechanistic hypothesis. The ECP/HOP mixture showed a promising multitarget bioactivity profile, with combined cytoprotective, antioxidant, immunomodulating and antiviral activities, likely due to the peculiar phytocomplexes of both ECP and HOP, and often potentiated the effect of the single extracts. The Nrf2 activation seemed to trigger these cytoprotective properties and suggest a possible usefulness in counteracting the damage caused by different stressors, including viral infection. Further studies may strengthen the interest in this product and underpin its future nutraceutical applications.
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Affiliation(s)
- Ester Percaccio
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (E.P.); (G.M.)
| | - Marta De Angelis
- Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Department of Public Health and Infectious Diseases, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (M.D.A.); (L.N.)
- Laboratory of Virology, Department of Molecular Medicine, Sapienza University of Rome, 00185 Rome, Italy
| | - Alessandra Acquaviva
- Department of Pharmacy, Botanic Garden “Giardino dei Semplici”, Università degli Studi “Gabriele d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy; (A.A.); (C.F.)
| | | | - Claudio Ferrante
- Department of Pharmacy, Botanic Garden “Giardino dei Semplici”, Università degli Studi “Gabriele d’Annunzio”, Via dei Vestini 31, 66100 Chieti, Italy; (A.A.); (C.F.)
| | - Gabriela Mazzanti
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (E.P.); (G.M.)
| | - Silvia Di Giacomo
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (E.P.); (G.M.)
- Unit of Human Nutrition and Health, Department of Food Safety, Nutrition and Veterinary Public Health, National Institute of Health, 00161 Rome, Italy;
| | - Lucia Nencioni
- Laboratory Affiliated to Istituto Pasteur Italia-Fondazione Cenci Bolognetti, Department of Public Health and Infectious Diseases, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (M.D.A.); (L.N.)
| | - Antonella Di Sotto
- Department of Physiology and Pharmacology “V. Erspamer”, Sapienza University of Rome, P.le Aldo Moro 5, 00185 Rome, Italy; (E.P.); (G.M.)
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Li Y, Dalabasmaz S, Gensberger-Reigl S, Heymich ML, Krofta K, Pischetsrieder M. Identification of colupulone and lupulone as the main contributors to the antibacterial activity of hop extracts using activity-guided fractionation and metabolome analysis. Food Res Int 2023; 169:112832. [PMID: 37254407 DOI: 10.1016/j.foodres.2023.112832] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 04/12/2023] [Accepted: 04/12/2023] [Indexed: 06/01/2023]
Abstract
Hop is widely used in beer brewing and as a medicinal product. The present study comprehensively analyzed the main molecular determinants of the antibacterial activity of hop extracts. Minimum inhibitory concentrations (MIC) against Bacillus subtilis between 31.25 and 250 µg/mL were found in the ethanolic extracts of five hop varieties for beer brewing, but not in the tea hop sample. Activity-guided fractionation revealed the highest antibacterial activity for lupulone and adlupulone (MIC 0.98 µg/mL). Metabolome profiling and subsequent multistep statistical analysis detected 33 metabolites out of 1826 features to be associated with the antibacterial activity including humulone, adhumulone, colupulone, lupulone, and adlupulone. Xanthohumol, the three humulone- and three lupulone congeners were quantified in the hop extracts by a validated ultrahigh-performance liquid chromatography-mass spectrometry method. Considering concentrations and MICs, colupulone and lupulone were identified as major contributors to the antibacterial activity of hop extract with the highest antibacterial activity values (concentration/MIC) of 1.59 and 2.56.
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Affiliation(s)
- Yan Li
- Food Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany.
| | - Sevim Dalabasmaz
- Food Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany.
| | - Sabrina Gensberger-Reigl
- Food Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany.
| | - Marie-Louise Heymich
- Food Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany.
| | - Karel Krofta
- Hop Research Institute, Co. Ltd., Kadaňská 2525, 438 01 Žatec, Czech Republic.
| | - Monika Pischetsrieder
- Food Chemistry, Department of Chemistry and Pharmacy, Friedrich-Alexander-Universität Erlangen-Nürnberg (FAU), Nikolaus-Fiebiger-Straße 10, 91058 Erlangen, Germany.
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Nurzynska A, Klimek K, Michalak A, Dos Santos Szewczyk K, Arczewska M, Szalaj U, Gagos M, Ginalska G. Do Curdlan Hydrogels Improved with Bioactive Compounds from Hop Exhibit Beneficial Properties for Skin Wound Healing? Int J Mol Sci 2023; 24:10295. [PMID: 37373441 DOI: 10.3390/ijms241210295] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2023] [Revised: 06/15/2023] [Accepted: 06/16/2023] [Indexed: 06/29/2023] Open
Abstract
Chronic wounds, among others, are mainly characterized by prolonged inflammation associated with the overproduction of reactive oxygen species and pro-inflammatory cytokines by immune cells. As a consequence, this phenomenon hinders or even precludes the regeneration process. It is known that biomaterials composed of biopolymers can significantly promote the process of wound healing and regeneration. The aim of this study was to establish whether curdlan-based biomaterials modified with hop compounds can be considered as promising candidates for the promotion of skin wound healing. The resultant biomaterials were subjected to an evaluation of their structural, physicochemical, and biological in vitro and in vivo properties. The conducted physicochemical analyses confirmed the incorporation of bioactive compounds (crude extract or xanthohumol) into the curdlan matrix. It was found that the curdlan-based biomaterials improved with low concentrations of hop compounds possessing satisfactory hydrophilicity, wettability, porosity, and absorption capacities. In vitro, tests showed that these biomaterials were non-cytotoxic, did not inhibit the proliferation of skin fibroblasts, and had the ability to inhibit the production of pro-inflammatory interleukin-6 by human macrophages stimulated with lipopolysaccharide. Moreover, in vivo studies showed that these biomaterials were biocompatible and could promote the regeneration process after injury (study on Danio rerio larvae model). Thus, it is worth emphasizing that this is the first paper demonstrating that a biomaterial based on a natural biopolymer (curdlan) improved with hop compounds may have biomedical potential, especially in the context of skin wound healing and regeneration.
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Affiliation(s)
- Aleksandra Nurzynska
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland
| | - Katarzyna Klimek
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland
| | - Agnieszka Michalak
- Independent Laboratory of Behavioral Studies, Medical University of Lublin, Chodzki 4 a Street, 20-093 Lublin, Poland
| | | | - Marta Arczewska
- Department of Biophysics, University of Life Sciences, Akademicka 13 Street, 20-033 Lublin, Poland
- Department of Biophysics, Medical University of Lublin, Jaczewskiego 4 Street, 20-090 Lublin, Poland
| | - Urszula Szalaj
- Laboratory of Nanostructures, Polish Academy of Science, Sokolowska 29/37 Street, 01-142 Warsaw, Poland
- Faculty of Materials Engineering, Warsaw University of Technology, 02-507 Warsaw, Poland
| | - Mariusz Gagos
- Department of Cell Biology, Maria Curie-Sklodowska University, Akademicka 19, 20-033 Lublin, Poland
- Department of Biochemistry and Molecular Biology, Medical University of Lublin, Chodzki Street 1, 20-093 Lublin, Poland
| | - Grazyna Ginalska
- Chair and Department of Biochemistry and Biotechnology, Medical University of Lublin, Chodzki 1 Street, 20-093 Lublin, Poland
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9
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Santarelli V, Neri L, Carbone K, Macchioni V, Faieta M, Pittia P. Conventional and innovative extraction technologies to produce food-grade hop extracts: Influence on bitter acids content and volatile organic compounds profile. J Food Sci 2023; 88:1308-1324. [PMID: 36789873 DOI: 10.1111/1750-3841.16487] [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: 07/28/2022] [Revised: 11/29/2022] [Accepted: 01/18/2023] [Indexed: 02/16/2023]
Abstract
Hop extracts represent a natural alternative to synthetic food additives because of their high content of bitter acids and volatile organic compounds (VOCs) with bittering, flavoring, and antimicrobial properties. However, broader uses of hop extracts as natural techno-functional ingredients rely on the identification of sustainable and affordable extraction technologies allowing to diversify the processes and produce extracts characterized by different compositions and, consequently, qualitative properties. Thus, this study is aimed to evaluate and compare the effect of innovative and conventional extraction methods on the bitter acids content and VOCs pattern of food-grade ethanolic hop extracts for food applications. Innovative extractions were carried out by using two ultrasound systems (a laboratory bath [US] and a high-power ultrasound bath [HPUS]), and a high-pressure industrial process (high hydrostatic pressure [HHP]). Conventional extractions (CONV) were performed under dynamic maceration at 25 and 60°C; for ultrasound and conventional methods, the effect of the extraction time was also investigated. Among the extracts, the highest and lowest content of bitter acids was found in CONV 60°C extracts, and HHP and CONV 25°C extracts, respectively. Of the 34 VOCs identified in dry hops, ∼24 compounds were found in US, HPUS and CONV extracts, while only 18 were found in HHP. CONV extractions showed higher selectivity for sesquiterpenes, while US and HPUS showed higher selectivity for esters and monoterpenes. Hierarchical cluster analysis (HCA) and partial least squares-discriminant analysis (PLS-DA) allowed classifying hop extracts based on the extraction methods and also allowed highlighting the technological conditions to produce hop extracts with specific techno-functional and flavoring properties. PRACTICAL APPLICATION: The study showed that different extraction methods can lead to hop products with varying sensory and functional properties. By selecting the right extraction method, companies can produce hop extracts with specific compositions that meet their needs for clean label and sustainable food products, as well as new edible packaging or coatings.
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Affiliation(s)
- Veronica Santarelli
- Faculty of Bioscience and Technologies for Food, Agriculture, and Environment, University of Teramo, Teramo, Italy
| | - Lilia Neri
- Faculty of Bioscience and Technologies for Food, Agriculture, and Environment, University of Teramo, Teramo, Italy
| | - Katya Carbone
- CREA, Research Centre for Olive, Fruit and Citrus Crops, Rome, Italy
| | | | - Marco Faieta
- Faculty of Bioscience and Technologies for Food, Agriculture, and Environment, University of Teramo, Teramo, Italy
| | - Paola Pittia
- Faculty of Bioscience and Technologies for Food, Agriculture, and Environment, University of Teramo, Teramo, Italy
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10
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Carbone K, Gervasi F. An Updated Review of the Genus Humulus: A Valuable Source of Bioactive Compounds for Health and Disease Prevention. PLANTS (BASEL, SWITZERLAND) 2022; 11:plants11243434. [PMID: 36559547 PMCID: PMC9782902 DOI: 10.3390/plants11243434] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/21/2022] [Revised: 11/23/2022] [Accepted: 12/02/2022] [Indexed: 06/12/2023]
Abstract
The medicinal potential of hop (Humulus lupulus L.) is widely cited in ancient literature and is also allowed in several official pharmacopoeias for the treatment of a variety of ailments, mainly related to anxiety states. This is due to the plethora of phytoconstituents (e.g., bitter acids, polyphenols, prenyl flavonoids) present in the female inflorescences, commonly known as cones or strobili, endowed with anti-inflammatory, antioxidant, antimicrobial, and phytoestrogen activities. Hop has recently attracted the interest of the scientific community due to the presence of xanthohumol, whose strong anti-cancer activity against various types of cancer cells has been well documented, and for the presence of 8-prenyl naringenin, the most potent known phytoestrogen. Studies in the literature have also shown that hop compounds can hinder numerous signalling pathways, including ERK1/2 phosphorylation, regulation of AP-1 activity, PI3K-Akt, and nuclear factor NF-κB, which are the main targets of the antiproliferative action of bitter acids and prenylflavonoids. In light of these considerations, the aim of this review was to provide an up-to-date overview of the main biologically active compounds found in hops, as well as their in vitro and in vivo applications for human health and disease prevention. To this end, a quantitative literature analysis approach was used, using VOSviewer software to extract and process Scopus bibliometric data. In addition, data on the pharmacokinetics of bioactive hop compounds and clinical studies in the literature were analysed. To make the information more complete, studies on the beneficial properties of the other two species belonging to the genus Humulus, H. japonicus and H. yunnanensis, were also reviewed for the first time.
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11
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Liu Y, Francis RA, Wooster MJ, Grosvenor MJ, Yan S, Roberts G. Systematic Mapping and Review of Landscape Fire Smoke (LFS) Exposure Impacts on Insects. ENVIRONMENTAL ENTOMOLOGY 2022; 51:871-884. [PMID: 36130330 PMCID: PMC9585373 DOI: 10.1093/ee/nvac069] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/13/2022] [Indexed: 06/15/2023]
Abstract
Landscape fire activity is changing in many regions because of climate change. Smoke emissions from landscape fires contain many harmful air pollutants, and beyond the potential hazard posed to human health, these also have ecological impacts. Insects play essential roles in most ecosystems worldwide, and some work suggests they may also be sensitive to smoke exposure. There is therefore a need for a comprehensive review of smoke impacts on insects. We systematically reviewed the scientific literature from 1930 to 2022 to synthesize the current state of knowledge of the impacts of smoke exposure from landscape fires on the development, behavior, and mortality of insects. We found: (1) 42 relevant studies that met our criteria, with 29% focused on the United States of America and 19% on Canada; (2) of these, 40 insect species were discussed, all of which were sensitive to smoke pollution; (3) most of the existing research focuses on how insect behavior responds to landscape fire smoke (LFS); (4) species react differently to smoke exposure, with for example some species being attracted to the smoke (e.g., some beetles) while others are repelled (e.g., some bees). This review consolidates the current state of knowledge on how smoke impacts insects and highlights areas that may need further investigation. This is particularly relevant since smoke impacts on insect communities will likely worsen in some areas due to increasing levels of biomass burning resulting from the joint pressures of climate change, land use change, and more intense land management involving fire.
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Affiliation(s)
- Yanan Liu
- Department of Geography, King’s College London, Bush House, 40 Aldwych, London, WC2B 4BG, UK
- Leverhulme Centre for Wildfires, Environment and Society, King’s College London, London WC2R 2LS, UK
| | - Robert A Francis
- Department of Geography, King’s College London, Bush House, 40 Aldwych, London, WC2B 4BG, UK
| | - Martin J Wooster
- Department of Geography, King’s College London, Bush House, 40 Aldwych, London, WC2B 4BG, UK
- Leverhulme Centre for Wildfires, Environment and Society, King’s College London, London WC2R 2LS, UK
- NERC National Centre for Earth Observation, King’s College London, London WC2R 2LS, UK
| | - Mark J Grosvenor
- Department of Geography, King’s College London, Bush House, 40 Aldwych, London, WC2B 4BG, UK
- Leverhulme Centre for Wildfires, Environment and Society, King’s College London, London WC2R 2LS, UK
- NERC National Centre for Earth Observation, King’s College London, London WC2R 2LS, UK
| | - Su Yan
- Department of Electrical and Electronic Engineering, Imperial CollegeLondon, London SW7 2BX, UK
| | - Gareth Roberts
- Geography and Environmental Science, University of Southampton, Southampton, UK
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12
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Makri A, Papachristos DP, Michaelakis A, Vidali VP. Colupulone, colupone and novel deoxycohumulone geranyl analogues as larvicidal agents against Culex pipiens. PEST MANAGEMENT SCIENCE 2022; 78:4217-4222. [PMID: 35705833 DOI: 10.1002/ps.7039] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 06/10/2022] [Accepted: 06/15/2022] [Indexed: 06/15/2023]
Abstract
BACKGROUND As climate change proceeds, the management of the population of mosquitoes becomes more and more challenging. Insect adulticides and larvicides constitute significant control techniques, with the latter being considered the leading mosquito control method. However, the development of mosquito resistance development and the adverse side effects caused by the extensive use of synthetic insecticides have turned research towards the discovery of environmentally-friendly solutions. Plants and bacteria have historically proven to be a good source of insecticidally active compounds, which may possess novel modes of action to overcome current resistance mechanisms and could also possess favorable human and environmental safety profiles. A previous study demonstrated that the naturally occurring prenylated acyl phloroglucinol deoxycohumulone is a potent larvicidal agent against Culex pipiens. Herein the structural characteristics that improve it are explored by evaluating colupulone and novel geranylated analogues. RESULTS Colupulone, a prenylated acyl phloroglucinol isolated from Humulus lupulus, colupone, and novel geranylated acyl phloroglucinol congeners, were synthesized and evaluated against Cx. pipiens larva. Results indicated that selected derivatives exhibited superior potency than deoxycohumulone (LC50 43.7 mg L-1 ). Thus, strong activity was observed for colupulone (LC50 19.7 mg L-1 ), and some novel geranyl analogues of deoxycohumulone reaching at LC50 17.1 mg L-1 , while colupone and similar compounds were almost inactive. CONCLUSION The results determined the relationship between the target activity and the chemical structure of the tested compounds, and they revealed significantly improved larvicidal candidates. These results highlight the potential of the acyl phloroglucinol chemistry for further development of mosquito larvicides. © 2022 Society of Chemical Industry.
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Affiliation(s)
- Apostolia Makri
- Natural Products and Bioorganic Chemistry Laboratory, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Athens, Greece
- Department of Food Science and Human Nutrition, Agricultural University of Athens, Athens, Greece
| | - Dimitrios P Papachristos
- Scientific Directorate of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, Kifissia, Greece
| | - Antonios Michaelakis
- Scientific Directorate of Entomology and Agricultural Zoology, Benaki Phytopathological Institute, Kifissia, Greece
| | - Veroniki P Vidali
- Natural Products and Bioorganic Chemistry Laboratory, Institute of Nanoscience & Nanotechnology, NCSR "Demokritos", Athens, Greece
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Duarte LM, Aredes RS, Amorim TL, de Carvalho Marques FF, de Oliveira MAL. Determination of α- and β-acids in hops by liquid chromatography or electromigration techniques: A critical review. Food Chem 2022; 397:133671. [PMID: 35908460 DOI: 10.1016/j.foodchem.2022.133671] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 07/06/2022] [Accepted: 07/08/2022] [Indexed: 01/12/2023]
Abstract
Hop plays an essential role in brewing beer and its study and analysis is of paramount importance. - and -acids are considered two of the most important hop components. While -acids are associated with the bitter flavor, -acids have antimicrobial effects. This work aims to critically review the published analytical methods for - and -acids determination in hops employing separation methods in liquid medium: liquid chromatography (LC) and capillary electrophoresis (CE). The types of hop samples, the optimized protocols to extract the hop acids, and the main instrumental conditions for both LC and CE techniques are highlighted and discussed. Specific and critical aspects of the - and β-acids separation by LC and CE and some challenges in this field are raised. Several key aspects discussed in this review may be of practical importance for brewers, whether in the microbrewery or industry and for researchers in the brewing field.
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Affiliation(s)
- Lucas Mattos Duarte
- Department of Chemistry, Institute of Exact Sciences, Federal University of Juiz de Fora, José Lourenço Kelmer, 36036-900 Juiz de Fora, MG, Brazil; Graduate Program in Chemistry (PPGQ-UFF) - Institute of Chemistry, Fluminense Federal University, Outeiro de São João Batista, s/n, 24020-141 Niterói, RJ, Brazil.
| | - Rafaella Silva Aredes
- Graduate Program in Chemistry (PPGQ-UFF) - Institute of Chemistry, Fluminense Federal University, Outeiro de São João Batista, s/n, 24020-141 Niterói, RJ, Brazil.
| | - Tatiane Lima Amorim
- Department of Chemistry, Institute of Exact Sciences, Federal University of Juiz de Fora, José Lourenço Kelmer, 36036-900 Juiz de Fora, MG, Brazil
| | - Flávia Ferreira de Carvalho Marques
- Graduate Program in Chemistry (PPGQ-UFF) - Institute of Chemistry, Fluminense Federal University, Outeiro de São João Batista, s/n, 24020-141 Niterói, RJ, Brazil.
| | - Marcone Augusto Leal de Oliveira
- Department of Chemistry, Institute of Exact Sciences, Federal University of Juiz de Fora, José Lourenço Kelmer, 36036-900 Juiz de Fora, MG, Brazil.
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14
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Using Hydrofluorocarbon Extracts of Hop in a Pilot Scale Brewing Process. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12146959] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
In recent years, the use of hop extracts in industrial and home brewing processes as an alternative to hop cones or pellets usually added to wort during boiling has become increasingly popular. These extracts represent concentrated sources of bitter compounds, i.e., α- and β-acids, which are involved in some of the main reactions that take place in the wort and are responsible for the bitterness and the final quality of beer. This work aims at proposing a novel extraction technique, using a hydrofluorocarbon solvent in subcritical conditions; this process provided an extraction yield of 19% and an α-acid recovery of approximately 49% in 120 min of process. The α-acid isomerization kinetics of thermally treated hop extracts were studied and compared with those of both hop pellets and a CO2 extract. Laboratory scale tests showed that shorter boiling times were needed using hydrofluorocarbon and CO2 extracts (approximately 25 min and 34 min, respectively) to reach the same isomerization efficiency of 16.73%, achieved in 50 min of boiling with pellets. Moreover, the process was scaled up and the possibility of considerably reducing the conventional treatment times using hydrofluorocarbon extracts was confirmed: the same isomerization yield (9.1%) obtained after 50 min using the traditional procedure with hop pellets was reached in a shorter time of approximately 35 min in a pilot apparatus.
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15
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Assessment of the Genetic and Phytochemical Variability of Italian Wild Hop: A Route to Biodiversity Preservation. APPLIED SCIENCES-BASEL 2022. [DOI: 10.3390/app12115751] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Background: Northern Italy has an enormous heritage of hop biodiversity that need to be exploited and studied. The preservation and valorization through the characterization of the existent biodiversity is a primary goal of the European Green Deal 2023–2030. The aim of this study was to acquire information on the biodiversity of Italian wild hops. Methods: Genetic characterization of sixty accessions was done resorting to Single Sequence Repeated (SSR) markers. Phytochemical characterization of wild hops was achieved using: (i) high-performance liquid chromatography with ultraviolet detection for bitter acids quantification, (ii) steam distillation for essential oils quantification and (iii) Gas Chromatography-Mass Spectrometry for the determination of the aromatic profile. Results: The eight SSR primers showed high Polymorphic Information Content (PIC), especially HlGA23. α-Acids reached values between 0 and 4.125. The essential oils analysis highlighted variability within the studied population, with some accessions characterized by important spicy fraction, and others by fruity and floral notes. Conclusions: The present study allowed the characterization of Italian wild hops and demonstrated an interesting biodiversity. Part of this biodiversity have been shown to be potentially suitable for use in brewing. Moreover, several genotypes could be used in breeding programs to obtain new more sustainable varieties.
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17
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Hop (Humulus lupulus L.) Essential Oils and Xanthohumol Derived from Extraction Process Using Solvents of Different Polarity. HORTICULTURAE 2022. [DOI: 10.3390/horticulturae8050368] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
This study evaluates the content of essential oils (EOs) and prenylated flavonoid Xanthohumol (XN) in extracts of Slovenian hops, cultivar Aurora, obtained by using fluids of different polarity. It is a continuation of our previous work, investigating the extraction of bitter acids from hops. Extraction was conducted semi-continuously, using sub- and supercritical fluids of different polarity, i.e., carbon dioxide (CO2) and propane as non-polar and dimethyl ether (DME) as the polar solvent. The experiments explored a temperature range between 20 °C and 80 °C and pressures ranging from 50 bar to 150 bar. The content of XN in extracts was analysed using high-performance liquid chromatography and experiments demonstrated the largest concentration of XN was obtained using DME. In order to analyse the EO components in extracts, connected with a distinct odour, the steam distillation of extracts was performed and GC analysis was employed. Hop oil derived from CO2 extracts at specific conditions, had the highest relative concentration of linalool, β-caryophyllene and α-humulene, and oil derived from propane extracts had the highest content of all other five selected components (myrcene, geraniol, farnesene, α-selinene and δ-cadinene). The relative content of the investigated EO components in DME extracts was similar to that in propane extracts.
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18
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Nicácio KDJ, Ferreira MS, Katchborian-Neto A, Costa ML, Murgu M, Dias DF, Soares MG, Chagas-Paula DA. Anti-Inflammatory Markers of Hops Cultivars (Humulus lupulus L.) Evaluated by Untargeted Metabolomics Strategy. Chem Biodivers 2022; 19:e202100966. [PMID: 35267234 DOI: 10.1002/cbdv.202100966] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Accepted: 03/08/2022] [Indexed: 11/09/2022]
Abstract
Hops (Humulus lupulus L.) are edible flowers commonly used to add flavour and aroma to beer, besides they have rich chemical diversity and medicinal potential. In this work, an ex vivo anti-inflammatory assay via the LPS-induced signalling pathway and metabolomics approaches were performed to evaluate the ability of hops to inhibit the production of prostaglandin E2 (PGE2) inflammatory mediator and analyze which metabolites produced by the nine different hop cultivars are potential anti-inflammatory markers. Columbus, Chinook and Hallertau Mittelfrüh hop cultivars yielded extracts with PGE2 release inhibition rates of 86.7, 92.5 and 73.5 %, respectively. According to the multivariate statistical analysis, the majority of the metabolites correlated with the activity were prenylated phloroglucinol and phenolic homologs. These results suggest promissory anti-inflammatory hop metabolites.
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Affiliation(s)
- Karen de Jesus Nicácio
- Institute of Chemistry, Federal University of Alfenas, Gabriel Monteiro da Silva, 700 - Centro, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Miller Santos Ferreira
- Institute of Chemistry, Federal University of Alfenas, Gabriel Monteiro da Silva, 700 - Centro, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Albert Katchborian-Neto
- Institute of Chemistry, Federal University of Alfenas, Gabriel Monteiro da Silva, 700 - Centro, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Milbya Lima Costa
- Institute of Chemistry, Federal University of Alfenas, Gabriel Monteiro da Silva, 700 - Centro, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Michael Murgu
- Waters Corporation, Alameda Tocantins 125, 27th Floor, Alphaville, 06455-020, São Paulo, Brazil
| | - Danielle Ferreira Dias
- Institute of Chemistry, Federal University of Alfenas, Gabriel Monteiro da Silva, 700 - Centro, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Marisi Gomes Soares
- Institute of Chemistry, Federal University of Alfenas, Gabriel Monteiro da Silva, 700 - Centro, 37130-001, Alfenas, Minas Gerais, Brazil
| | - Daniela Aparecida Chagas-Paula
- Institute of Chemistry, Federal University of Alfenas, Gabriel Monteiro da Silva, 700 - Centro, 37130-001, Alfenas, Minas Gerais, Brazil
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Hurth Z, Faber ML, Gendrisch F, Holzer M, Haarhaus B, Cawelius A, Schwabe K, Schempp CM, Wölfle U. The Anti-Inflammatory Effect of Humulus lupulus Extract In Vivo Depends on the Galenic System of the Topical Formulation. Pharmaceuticals (Basel) 2022; 15:ph15030350. [PMID: 35337147 PMCID: PMC8951350 DOI: 10.3390/ph15030350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Revised: 03/08/2022] [Accepted: 03/11/2022] [Indexed: 02/05/2023] Open
Abstract
We demonstrated the anti-inflammatory and anti-oxidative effects of Humulus lupulus (HL) extract on solar simulator-irradiated primary human keratinocytes (PHKs) by analyzing ERK and p38 MAPK phosphorylation and production of IL-6 and IL-8. The anti-inflammatory effect of topically applied HL was further tested in vivo on human skin. To this end, we developed an oil-in-water (O/W) and a water-in-oil (W/O) cream with a lipid content of 40%. The anti-inflammatory effect of 1% HL extract incorporated in these two vehicles was assessed in a randomized, prospective, placebo controlled, double-blind UVB erythema study with 40 healthy volunteers. Hydrocortisone acetate (HCA) in the corresponding vehicle served as positive control. Surprisingly, both HL and HCA were only effective in the O/W system but not in the W/O formulation. Release studies using vertical diffusion cells (Franz cells) revealed that HCA was released in much higher amounts from the O/W cream compared to the W/O formulation. In summary, we have shown that 1% HL extract exerts anti-inflammatory effects comparable to 1% HCA, but only when incorporated in our O/W cream. Our findings confirm the critical role of the vehicle in topical anti-inflammatory systems.
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Affiliation(s)
- Zita Hurth
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (Z.H.); (M.-L.F.); (F.G.); (B.H.); (C.M.S.)
| | - Marie-Luise Faber
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (Z.H.); (M.-L.F.); (F.G.); (B.H.); (C.M.S.)
| | - Fabian Gendrisch
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (Z.H.); (M.-L.F.); (F.G.); (B.H.); (C.M.S.)
| | - Martin Holzer
- Department of Pharmaceutical Technology and Biopharmacy, Institute of Pharmaceutical Sciences, Faculty of Chemistry and Pharmacy, University of Freiburg, 79104 Freiburg, Germany;
| | - Birgit Haarhaus
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (Z.H.); (M.-L.F.); (F.G.); (B.H.); (C.M.S.)
| | - Anja Cawelius
- Flavex Naturextrakte GmbH, 66780 Rehlingen, Germany;
| | - Kay Schwabe
- BSI-Beauty Science Intelligence GmbH, 30855 Langenhagen, Germany;
| | - Christoph Mathis Schempp
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (Z.H.); (M.-L.F.); (F.G.); (B.H.); (C.M.S.)
| | - Ute Wölfle
- Research Center Skinitial, Department of Dermatology, Medical Center, University of Freiburg, Faculty of Medicine, University of Freiburg, 79106 Freiburg, Germany; (Z.H.); (M.-L.F.); (F.G.); (B.H.); (C.M.S.)
- Correspondence: ; Tel.: +49-761-270-68250
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20
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Sun S, Wang X, Yuan A, Liu J, Li Z, Xie D, Zhang H, Luo W, Xu H, Liu J, Nie C, Zhang H. Chemical constituents and bioactivities of hops (
Humulus lupulus L
.) and their effects on beer‐related microorganisms. Food Energy Secur 2022. [DOI: 10.1002/fes3.367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Affiliation(s)
- Shaokang Sun
- Key Microbiology Laboratory of Shandong Province School of Bioengineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Xiaochen Wang
- Key Microbiology Laboratory of Shandong Province School of Bioengineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Ai Yuan
- State Key Laboratory of Biobased Material and Green Papermaking School of Bioengineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Jianlin Liu
- College of Chemical Engineering China University of Petroleum (East China) Qingdao China
| | - Zebin Li
- State Key Laboratory of Biobased Material and Green Papermaking School of Bioengineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Dongxiao Xie
- Biology Institute Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Huimin Zhang
- College of Life Sciences Shandong Normal University Jinan China
| | - Wenqing Luo
- Global Leaders College Yonsei University Seoul Korea
| | - Hengyuan Xu
- Key Microbiology Laboratory of Shandong Province School of Bioengineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Jinshang Liu
- Key Microbiology Laboratory of Shandong Province School of Bioengineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Cong Nie
- Key Microbiology Laboratory of Shandong Province School of Bioengineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China
| | - Haojun Zhang
- Key Microbiology Laboratory of Shandong Province School of Bioengineering Qilu University of Technology (Shandong Academy of Sciences) Jinan China
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21
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Hong K, Xu Z, Wang L, Johnpaul A, Cheng Y, Lv C, Ma C. Varietal differences in the phytochemical components’ accumulation and aroma profile of three Humulus lupulus cultivars. Food Control 2022. [DOI: 10.1016/j.foodcont.2021.108499] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
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Kordialik-Bogacka E. Biopreservation of beer: Potential and constraints. Biotechnol Adv 2022; 58:107910. [PMID: 35038561 DOI: 10.1016/j.biotechadv.2022.107910] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/29/2021] [Revised: 12/19/2021] [Accepted: 01/09/2022] [Indexed: 12/13/2022]
Abstract
The biopreservation of beer, using only antimicrobial agents of natural origin to ensure microbiological stability, is of great scientific and commercial interest. This review article highlights progress in the biological preservation of beer. It describes the antimicrobial properties of beer components and microbiological spoilage risks. It discusses novel biological methods for enhancing beer stability, using natural antimicrobials from microorganisms, plants, and animals to preserve beer, including legal restrictions. The future of beer preservation will involve the skilled knowledge-based exploitation of naturally occurring components in beer, supplementation with generally regarded as safe antimicrobial additives, and mild physical treatments.
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Affiliation(s)
- Edyta Kordialik-Bogacka
- Institute of Fermentation Technology and Microbiology, Faculty of Biotechnology and Food Sciences, Lodz University of Technology, 171/173 Wolczanska Street, 90-530 Lodz, Poland.
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Seo SO, Jin YS. Next-Generation Genetic and Fermentation Technologies for Safe and Sustainable Production of Food Ingredients: Colors and Flavorings. Annu Rev Food Sci Technol 2022; 13:463-488. [DOI: 10.1146/annurev-food-052720-012228] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
A growing human population is a significant issue in food security owing to the limited land and resources available for agricultural food production. To solve these problems, sustainable food manufacturing processes and the development of alternative foods and ingredients are needed. Metabolic engineering and synthetic biology can help solve the food security issue and satisfy the demand for alternative food production. Bioproduction of food ingredients by microbial fermentation is a promising method to replace current manufacturing processes, such as extraction from natural materials and chemical synthesis, with more ecofriendly and sustainable operations. This review highlights successful examples of bioproduction for food additives by engineered microorganisms, with an emphasis on colorants and flavors that are extensively used in the food industry. Recent strain engineering developments and fermentation strategies for producing selected food colorants and flavors are introduced with discussions on the current status and future perspectives. Expected final online publication date for the Annual Review of Food Science and Technology, Volume 13 is March 2022. Please see http://www.annualreviews.org/page/journal/pubdates for revised estimates.
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Affiliation(s)
- Seung-Oh Seo
- Department of Food Science and Nutrition, Catholic University of Korea, Bucheon, Republic of Korea
| | - Yong-Su Jin
- Department of Food Science and Human Nutrition and Carl R. Woese Institute for Genomic Biology, University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
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Comparative Study on Phenolic Compounds and Antioxidant Activities of Hop (Humulus lupulus L.) Strobile Extracts. PLANTS 2022; 11:plants11010135. [PMID: 35009138 PMCID: PMC8747208 DOI: 10.3390/plants11010135] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/24/2021] [Revised: 12/21/2021] [Accepted: 12/29/2021] [Indexed: 01/07/2023]
Abstract
In this study, we investigated the phenolic compounds in hop strobile extracts and evaluated their antioxidant property using DPPH and ABTS assay. The total phenolic compound (TPC) and total flavonoid compound (TFC) estimated in two different solvent extracts considerably varied depending on the extraction solvent. The most abundant phenolic compound in hop strobile was humulones (α-acid) with levels ranging from 50.44 to 193.25 µg/g. El Dorado accession revealed higher antioxidant activity in ethanol extracts (DPPH: IC50 124.3 µg/mL; ABTS: IC50 95.4 µg/mL) when compared with that of the other accessions. Correlations between DPPH (IC50) scavenging TFC in ethanol extract (TFC_E, −0.941), and TPC_E (−0.901), and between ABTS (IC50) scavenging TFC_E (−0.853), and TPC_E (−0.826), were statistically significant at p < 0.01 level, whereas no significant correlation was observed between antioxidant activities, TPC and TFC in water extract. This study is the first to report that variations in the level of phenolic contents and antioxidant activity of various hop cultivars depended on the type of extraction solvent used and the cultivation regions. These results could provide valuable information on developing hop products.
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MIN B, PARK CW, AHN Y, HONG KB, CHO HJ, LEE JH, JO K, SUH HJ. Effect of hop mixture containing xanthohumol on sleep enhancement in a mouse model and ROS scavenging effect in oxidative stress-induced HT22 cells. FOOD SCIENCE AND TECHNOLOGY 2022. [DOI: 10.1590/fst.29922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Byungjick MIN
- Korea University, Republic of Korea; Lotte R&D Center, Korea
| | - Chun Woong PARK
- Korea University, Republic of Korea; Korea University, Republic of Korea
| | | | | | | | | | | | - Hyung Joo SUH
- Korea University, Republic of Korea; Korea University, Republic of Korea
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Xu Y, Li D, Wang W, Xu K, Tan G, Li J, Li SM, Yu X. Dearomative gem-diprenylation of hydroxynaphthalenes by an engineered fungal prenyltransferase. RSC Adv 2022; 12:27550-27554. [PMID: 36276050 PMCID: PMC9514087 DOI: 10.1039/d2ra04837j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/06/2022] [Indexed: 11/22/2022] Open
Abstract
Prenylation usually improves structural diversity and bioactivity in natural products. Unlike the discovered enzymatic gem-diprenylation of mono- and tri-cyclic aromatic systems, the enzymatic approach for gem-diprenylation of bi-cyclic hydroxynaphthalenes is new to science. Here we report an enzymatic example for dearomative C4 gem-diprenylation of α-hydroxynaphthalenes, by the F253G mutant of a fungal prenyltransferase CdpC3PT. Experimental evidence suggests a sequential electrophilic substitution mechanism. We also explained the alteration of catalytic properties on CdpC3PT after mutation on F253 by modeling. This study provides a valuable addition to the synthetic toolkit for compound prenylation and it also contributes to the mechanistic study of prenylating enzymes. A new catalyst for regiospecific dearomative gem-diprenylation of α-hydroxynaphthalenes from the F253G mutant of the fungal prenyltransferase CdpC3PT.![]()
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Affiliation(s)
- Yuanyuan Xu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, People's Republic of China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, P. R. China
| | - Dan Li
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, People's Republic of China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, P. R. China
| | - Wenxuan Wang
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, People's Republic of China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, P. R. China
| | - Kangping Xu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, People's Republic of China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, P. R. China
| | - Guishan Tan
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, People's Republic of China
- Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Jing Li
- Xiangya Hospital of Central South University, Central South University, Changsha, Hunan 410008, People's Republic of China
| | - Shu-Ming Li
- Institut für Pharmazeutische Biologie und Biotechnologie, Philipps-Universität Marburg, Robert-Koch Straße 4, 35037 Marburg, Germany
| | - Xia Yu
- Xiangya School of Pharmaceutical Sciences, Central South University, Changsha, Hunan 410013, People's Republic of China
- Hunan Key Laboratory of Diagnostic and Therapeutic Drug Research for Chronic Diseases, Central South University, Changsha 410013, P. R. China
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Laurent AJ, Bindslev N, Vukojević V, Terenius L. Iso-α-acids in Nonalcoholic and Alcoholic Beer Stimulate Growth of Neuron-like SH-SY5Y Cells and Neuroepithelial Stem Cells. ACS BIO & MED CHEM AU 2021; 1:11-20. [PMID: 37101982 PMCID: PMC10125168 DOI: 10.1021/acsbiomedchemau.1c00017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
With the increasing popularity of nonalcoholic beer, the association between beer drinking and alcohol intake is lost. In the present study, we show that nonalcoholic beer can stimulate the expansion of neuron-like cell lines and neuroepithelial stem cells in culture, yielding an effect comparable to that of alcoholic beer. One ingredient in beer is hops, which is derived from the flower of hop plants. The female flower contains humulones, which are transformed into iso-α-acids during wort boiling and give beer its bitter taste. In this study, we tested the effects of these iso-α-acids and/or alcohol on the proliferation of neuron-like cells and neuroepithelial stem cells in culture. Iso-α-acids enhanced cell expansion, showing a bimodal dose-response curve with peaks around 2-30 nM and 2-5 μM, of which nanomolar concentrations are relevant in beer drinking. The more lipophilic trans-iso-α-acids, found to a greater extent in beer foam, are even more potent. Our results indicate that iso-α-acids, acting via peroxisome proliferator-activated receptors could be responsible for the observed effects. Altogether, our results indicate that nonalcoholic beer with ingredients such as iso-α-acids stimulate the proliferation of neuroepithelial stem cells.
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Affiliation(s)
- Agneta J. Laurent
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden
| | - Niels Bindslev
- Department of Biomedical Sciences, Faculty of Health and Medical Sciences, University of Copenhagen, Blegdamsvej 3B, DK-2200 Copenhagen N, Denmark
| | - Vladana Vukojević
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden
| | - Lars Terenius
- Department of Clinical Neuroscience, Center for Molecular Medicine, Karolinska Institutet, SE-171 76 Stockholm, Sweden
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Tian B, Xu D, Cheng J, Liu Y. Chitosan-silica with hops β-acids added films as prospective food packaging materials: Preparation, characterization, and properties. Carbohydr Polym 2021; 272:118457. [PMID: 34420717 DOI: 10.1016/j.carbpol.2021.118457] [Citation(s) in RCA: 27] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2021] [Revised: 07/04/2021] [Accepted: 07/15/2021] [Indexed: 12/12/2022]
Abstract
In this study, silica (SiO2) and β-acids were added to the chitosan films in order to improve the film's properties. Scanning electron microscopy (SEM), Fourier transform infrared spectroscopy (FTIR), and X-ray diffraction analysis (XRD) were used to explore the structure of film. The results of mechanical test indicated that the film containing SiO2 (0.3%) and β-acids (0.3%) could obtain a significant tensile strength (10.04 MPa). The complex films possessed a good inhibitory effect on three types of bacteria, and good antioxidant activity (>56%, DPPH). The release mechanism of β-acids from the films exhibited Fickian diffusion (n < 0.45). During the storage of soybean oil, the films could well control the changes of the peroxide value, acid value and thiobarbituric acid reactant content. Overall, the biofilms not only possess good physical and chemical properties, but also prolongs the time of food storage.
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Affiliation(s)
- Bingren Tian
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China
| | - Dan Xu
- College of Chemistry, Xinjiang University, Urumqi 830046, China
| | - Jianhua Cheng
- College of Chemistry, Xinjiang University, Urumqi 830046, China
| | - Yumei Liu
- School of Chemical Engineering and Technology, Xinjiang University, Urumqi 830046, China.
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Rodrigues Arruda T, Fontes Pinheiro P, Ibrahim Silva P, Campos Bernardes P. Exclusive Raw Material for Beer Production? Addressing Greener Extraction Techniques, the Relevance, and Prospects of Hops (Humulus lupulus L.) for the Food Industry. FOOD BIOPROCESS TECH 2021. [DOI: 10.1007/s11947-021-02716-w] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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31
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High Genetic Diversity and Low Population Differentiation in Wild Hop (Humulus lupulus L.) from Croatia. APPLIED SCIENCES-BASEL 2021. [DOI: 10.3390/app11146484] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
Hop (Humulus lupulus L.) is used in the brewing industry as a source of compounds responsible for the bitterness, aroma, and preservative properties of beer. In this study, we used microsatellite markers to investigate genetic diversity and genetic differentiation of wild hop populations sampled in the northwestern part of Croatia. Analysis of 12 microsatellite loci revealed high diversity and weak population differentiation among wild hop populations. A total of 152 alleles were determined with an average of 12.67 alleles per locus. Observed heterozygosity ranged from 0.689 to 0.839 (average 0.767) and expected heterozygosity ranged from 0.725 to 0.789 (average 0.760). A total of 38 private alleles were detected. The data suggest that H. lupulus populations are not affected by recent bottlenecks. The degree of genetic differentiation among populations was low and not significant for most pairwise FST values, except for the pair of geographically most distant populations. The results did not indicate the existence of genetic structure among the sampled populations. The high genetic diversity and low differentiation among populations, combined with the absence of isolation by distance, indicate the existence of substantial gene flow among wild hop populations. Therefore, extensive sampling per population is clearly required to assess the genetic diversity of hop populations. Sampling strategies involving sampling across a large number of localities represented by only a few samples could lead to erroneous conclusions.
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Girisa S, Saikia Q, Bordoloi D, Banik K, Monisha J, Daimary UD, Verma E, Ahn KS, Kunnumakkara AB. Xanthohumol from Hop: Hope for cancer prevention and treatment. IUBMB Life 2021; 73:1016-1044. [PMID: 34170599 DOI: 10.1002/iub.2522] [Citation(s) in RCA: 29] [Impact Index Per Article: 9.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2021] [Revised: 06/17/2021] [Accepted: 06/21/2021] [Indexed: 12/16/2022]
Abstract
Cancer is a major public health concern due to high mortality and poor quality of life of patients. Despite the availability of advanced therapeutic interventions, most treatment modalities are not efficacious, very expensive, and cause several adverse side effects. The factors such as drug resistance, lack of specificity, and low efficacy of the cancer drugs necessitate developing alternative strategies for the prevention and treatment of this disease. Xanthohumol (XN), a prenylated chalcone present in Hop (Humulus lupulus), has been found to possess prominent activities against aging, diabetes, inflammation, microbial infection, and cancer. Thus, this manuscript thoroughly reviews the literature on the anti-cancer properties of XN and its various molecular targets. XN was found to exert its inhibitory effect on the growth and proliferation of cancer cells via modulation of multiple signaling pathways such as Akt, AMPK, ERK, IGFBP2, NF-κB, and STAT3, and also modulates various proteins such as Notch1, caspases, MMPs, Bcl-2, cyclin D1, oxidative stress markers, tumor-suppressor proteins, and miRNAs. Thus, these reports suggest that XN possesses enormous therapeutic potential against various cancers and could be potentially used as a multi-targeted anti-cancer agent with minimal adverse effects.
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Affiliation(s)
- Sosmitha Girisa
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Queen Saikia
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Devivasha Bordoloi
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Kishore Banik
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Javadi Monisha
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Uzini Devi Daimary
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Elika Verma
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
| | - Kwang Seok Ahn
- Department of Science in Korean Medicine, College of Korean Medicine, Kyung Hee University, 24 Kyungheedae-ro, Dongdaemun-gu, Seoul, 02447, South Korea
| | - Ajaikumar B Kunnumakkara
- Cancer Biology Laboratory and DBT-AIST International Center for Translational and Environmental Research (DAICENTER), Department of Biosciences and Bioengineering, Indian Institute of Technology Guwahati, Guwahati, Assam, India
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Macchioni V, Carbone K, Cataldo A, Fraschini R, Bellucci S. Lactic acid-based deep natural eutectic solvents for the extraction of bioactive metabolites of Humulus lupulus L.: Supramolecular organization, phytochemical profiling and biological activity. Sep Purif Technol 2021. [DOI: 10.1016/j.seppur.2020.118039] [Citation(s) in RCA: 13] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
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Zhang G, Zhang N, Yang A, Huang J, Ren X, Xian M, Zou H. Hop bitter acids: resources, biosynthesis, and applications. Appl Microbiol Biotechnol 2021; 105:4343-4356. [PMID: 34021813 DOI: 10.1007/s00253-021-11329-4] [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: 03/22/2021] [Revised: 04/26/2021] [Accepted: 04/29/2021] [Indexed: 01/15/2023]
Abstract
Diversified members of hop bitter acids (α- and β-acids) have been found in hop (Humulus lupulus). Mixtures of hop bitter acids have been traditionally applied in brewing and food industries as bitterness flavors or food additives. Recent studies have discovered novel applications of hop bitter acids and their derivatives in medicinal and pharmaceutical fields. The increasing demands of purified hop bitter acid promoted biosynthesis efforts for the heterologous biosynthesis of objective hop bitter acids by engineered microbial factories. In this study, the updated information of hop bitter acids and their representative application in brewing, food, and medicine fields are reviewed. We also speculate future trends on the development of robust microbial cell factories and biotechnologies for the biosynthesis of hop bitter acids. KEY POINTS: • Structures and applications of hop bitter acids are summarized in this study. • Biosynthesis of hop bitter acids remains challenging. • We discuss potential strategies in the microbial production of hop bitter acids.
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Affiliation(s)
- Guoqing Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Nan Zhang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Anran Yang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Jingling Huang
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Xueni Ren
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China
| | - Mo Xian
- CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China
| | - Huibin Zou
- State Key Laboratory Base of Eco-Chemical Engineering, College of Chemical Engineering, Qingdao University of Science and Technology, Qingdao, 266042, China. .,CAS Key Laboratory of Bio-based Materials, Qingdao Institute of Bioenergy and Bioprocess Technology, Chinese Academy of Sciences, Qingdao, China.
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Characterization of phase I and phase II metabolites of hop (Humulus lupulus L.) bitter acids: In vitro and in vivo metabolic profiling by UHPLC-Q-Orbitrap. J Pharm Biomed Anal 2021; 201:114107. [PMID: 33984828 DOI: 10.1016/j.jpba.2021.114107] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2021] [Revised: 04/23/2021] [Accepted: 04/24/2021] [Indexed: 11/21/2022]
Abstract
Bitter acids are a class of prenylated phloroglucinol derivatives present in Humulus lupulus L., known for their multiple healthy properties, nevertheless, research regarding their metabolism and stability is lacking. This study was aimed to elucidate the metabolic stability of hop α- and β-acids and characterize I and II phase metabolites in vitro and in vivo. For this purpose, an ultra high performance liquid chromatography-high resolution mass spectrometry (UHPLC-HRMS) method was developed and validated. Mice liver microsomes were used to assess metabolic stability; in vitro t1/2 and clearance values were calculated, showing a moderate metabolism for α-acids (avgt1/2: 120.01 min, avgCLint 11.96 μL/min/mg), while β-acids were metabolized faster (avgt1/2: 103.01 min, avgCLint: 13.83 μL/min/mg). I and II phase metabolites were characterized both in in vitro, and in vivo, in mouse plasma and urine after oral administration. A combined full scan/data dependent/precursor ion list-triggered neutral loss (FS/dd-MS2/PIL-tNL) strategy was used to detect unknown and expected metabolites. As a result, 33 compounds were detected, including novel metabolites, such as 9 potential oxidized metabolites of humulones (M6-M14), and 10 glucuronide conjugates of α-acids, comprising 7 glucuronide derivatives of oxidized phase I metabolites (M26-M32). The proposed method extends the current knowledge regarding metabolization of hop α- and β-acids and could be applied for the comprehension of the metabolic fate of this class of compounds in different species, as well as for in vivo pharmacokinetic studies.
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The Effect of Herbal Medicinal Products on Psoriasis-Like Keratinocytes. Biomolecules 2021; 11:biom11030371. [PMID: 33801280 PMCID: PMC8000521 DOI: 10.3390/biom11030371] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Revised: 02/23/2021] [Accepted: 02/24/2021] [Indexed: 02/07/2023] Open
Abstract
Psoriasis is a chronic inflammatory skin disease characterized by hyperproliferation of keratinocytes and expression of pro-inflammatory cytokines in the epidermis. New biological drugs were developed for the systemic treatment of moderate to severe psoriasis. However, products for the topical treatment of mild psoriasis are still required. Here, we examined the effect of natural compounds on psoriasis-like keratinocytes in vitro and ex vivo. Psoriasis-like keratinocytes were generated by treating human primary keratinocytes with the psoriasis-associated cytokines IL-17A, TNF-α and IL-22. Initially, 10 botanical extracts from Ayurvedic Medicine, Traditional Chinese Medicine, Northern American traditional medicine and Occidental Monastic Medicine were investigated using BrdU assays and IL-6 and IL-8 ELISAs. Curcuma amada, Humulus lupulus and Hypericum perforatum turned out to be the most effective plant extracts. In vitro, the plant extracts inhibited the expression of anti-microbial peptides (β-defensin 2), the hyperproliferation marker keratin 17, the glucose transporter 1 and downregulated the nuclear translocation of NF-κB and pSTAT3. In an ex vivo psoriasis model, Humulus lupulus displayed the most prominent anti-proliferative and anti-inflammatory effect. In conclusion, among the plant extracts investigated, Humulus lupulus showed the most promising anti-psoriatic effect. It is an interesting candidate for topical psoriasis treatment that should be further studied in clinical trials.
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Padgitt-Cobb LK, Kingan SB, Wells J, Elser J, Kronmiller B, Moore D, Concepcion G, Peluso P, Rank D, Jaiswal P, Henning J, Hendrix DA. A draft phased assembly of the diploid Cascade hop (Humulus lupulus) genome. THE PLANT GENOME 2021; 14:e20072. [PMID: 33605092 DOI: 10.1002/tpg2.20072] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 10/03/2020] [Indexed: 05/25/2023]
Abstract
Hop (Humulus lupulus L. var Lupulus) is a diploid, dioecious plant with a history of cultivation spanning more than one thousand years. Hop cones are valued for their use in brewing and contain compounds of therapeutic interest including xanthohumol. Efforts to determine how biochemical pathways responsible for desirable traits are regulated have been challenged by the large (2.8 Gb), repetitive, and heterozygous genome of hop. We present a draft haplotype-phased assembly of the Cascade cultivar genome. Our draft assembly and annotation of the Cascade genome is the most extensive representation of the hop genome to date. PacBio long-read sequences from hop were assembled with FALCON and partially phased with FALCON-Unzip. Comparative analysis of haplotype sequences provides insight into selective pressures that have driven evolution in hop. We discovered genes with greater sequence divergence enriched for stress-response, growth, and flowering functions in the draft phased assembly. With improved resolution of long terminal retrotransposons (LTRs) due to long-read sequencing, we found that hop is over 70% repetitive. We identified a homolog of cannabidiolic acid synthase (CBDAS) that is expressed in multiple tissues. The approaches we developed to analyze the draft phased assembly serve to deepen our understanding of the genomic landscape of hop and may have broader applicability to the study of other large, complex genomes.
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Affiliation(s)
- Lillian K Padgitt-Cobb
- Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR, 97331, USA
| | - Sarah B Kingan
- Pacific Biosciences of California, Menlo Park, CA, 94025, USA
| | - Jackson Wells
- Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, 97331, USA
| | - Justin Elser
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, 97331, USA
| | - Brent Kronmiller
- Center for Genome Research and Biocomputing, Oregon State University, Corvallis, OR, 97331, USA
| | | | | | - Paul Peluso
- Pacific Biosciences of California, Menlo Park, CA, 94025, USA
| | - David Rank
- Pacific Biosciences of California, Menlo Park, CA, 94025, USA
| | - Pankaj Jaiswal
- Department of Botany and Plant Pathology, Oregon State University, Corvallis, OR, 97331, USA
| | | | - David A Hendrix
- Department of Biochemistry and Biophysics, Oregon State University, Corvallis, OR, 97331, USA
- School of Electrical Engineering and Computer Science, Oregon State University, Corvallis, OR, 97331, USA
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Petrón M, Andrés A, Esteban G, Timón M. Study of antioxidant activity and phenolic compounds of extracts obtained from different craft beer by-products. J Cereal Sci 2021. [DOI: 10.1016/j.jcs.2021.103162] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Riccioni C, Belfiori B, Sileoni V, Marconi O, Perretti G, Bellucci M, Rubini A. High genetic and chemical diversity of wild hop populations from Central Italy with signals of a genetic structure influenced by both sexual and asexual reproduction. PLANT SCIENCE : AN INTERNATIONAL JOURNAL OF EXPERIMENTAL PLANT BIOLOGY 2021; 304:110794. [PMID: 33568295 DOI: 10.1016/j.plantsci.2020.110794] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/23/2020] [Revised: 12/04/2020] [Accepted: 12/07/2020] [Indexed: 06/12/2023]
Abstract
In order to investigate the intraspecific diversity of wild Humulus lupulus (hop) in Central Italy, 12 populations were evaluated for their genetic polymorphism by means of 13 SSR loci together with six commercial cultivars as a reference. High levels of polymorphism were found across the populations, being 140 the number of multilocus genotypes over 159 samples analyzed. Moreover, the observed heterozygosity was higher than expected in most of the populations. High levels of gene flow were thus envisaged to occur within and among wild populations, and our sampling strategy allowed us to gain insights on the propagation modes of this species, i.e. clonal versus sexual propagation. Nevertheless, a genetic structure of populations with at least five genetically different clusters was disclosed. Private alleles were observed in both wild and cultivated hops. Chemical analysis of bittering and aromatic quality of female flowers from a subset of 8 wild populations revealed a high variability among plants, especially for essential oil components. Overall, the high variability of wild accessions here examined represent a valid source to be exploited in future breeding programs for new or improved hop cultivars development.
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Affiliation(s)
- Claudia Riccioni
- National Research Council, Institute of Biosciences and Bioresources, Division of Perugia, Via della Madonna Alta 130, Perugia, 06128, Italy.
| | - Beatrice Belfiori
- National Research Council, Institute of Biosciences and Bioresources, Division of Perugia, Via della Madonna Alta 130, Perugia, 06128, Italy.
| | - Valeria Sileoni
- Universitas Mercatorum, Piazza Mattei 10, Roma, 00186, Italy.
| | - Ombretta Marconi
- University of Perugia, Italian Brewing Research Centre, Via San Costanzo s.n.c., Perugia, 06126, Italy.
| | - Giuseppe Perretti
- University of Perugia, Italian Brewing Research Centre, Via San Costanzo s.n.c., Perugia, 06126, Italy.
| | - Michele Bellucci
- National Research Council, Institute of Biosciences and Bioresources, Division of Perugia, Via della Madonna Alta 130, Perugia, 06128, Italy.
| | - Andrea Rubini
- National Research Council, Institute of Biosciences and Bioresources, Division of Perugia, Via della Madonna Alta 130, Perugia, 06128, Italy.
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The Promising Ability of Humulus lupulus L. Iso-α-acids vs. Diabetes, Inflammation, and Metabolic Syndrome: A Systematic Review. Molecules 2021; 26:molecules26040954. [PMID: 33670177 PMCID: PMC7916982 DOI: 10.3390/molecules26040954] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 01/31/2021] [Accepted: 02/04/2021] [Indexed: 02/07/2023] Open
Abstract
For centuries, natural medicines have represented the only option for treating human diseases and, nowadays, plant phytochemicals are considered as promising compounds to treat or prevent chronic conditions. Among them, hop flowers (Humulus lupulus L.), typically used in brewing industries to give the typical aroma and flavor to beer, have attracted particular attention for their health promoting properties. Several in vivo/vitro studies and human interventional trials have demonstrated the beneficial effects of these molecules on weight gain, lipid metabolism, glucose homeostasis, insulin sensitivities, and inflammation by acting on different targets. All these activities suggest a possible role of bitter hop acid in preventing metabolic syndrome and its related diseases. A systematic quest on PubMed and Scopus databases was performed to identify pre-clinical and clinical studies focusing on this topic. This systematic review summarizes the results obtained by different cell lines, animal models, and human interventional trials to propose iso-α-acids as medical nutrition therapy to treat or prevent metabolic syndrome and its related disorders as diabetes, dislipidemia inflammation, etc.
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Rock EM, Parker LA. Constituents of Cannabis Sativa. ADVANCES IN EXPERIMENTAL MEDICINE AND BIOLOGY 2021; 1264:1-13. [PMID: 33332000 DOI: 10.1007/978-3-030-57369-0_1] [Citation(s) in RCA: 33] [Impact Index Per Article: 11.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
The Cannabis sativa plant has been used medicinally and recreationally for thousands of years, but recently only relatively some of its constituents have been identified. There are more than 550 chemical compounds in cannabis, with more than 100 phytocannabinoids being identified, including Δ9-tetrahydrocannabinol (THC) and cannabidiol (CBD). These phytocannabinoids work by binding to the cannabinoid receptors, as well as other receptor systems. Also within cannabis are the aromatic terpenes, more than 100 of which have been identified. Cannabis and its constituents have been indicated as therapeutic compounds in numerous medical conditions, such as pain, anxiety, epilepsy, nausea and vomiting, and post-traumatic stress disorder. This chapter provides an overview of some of the biological effects of a number of the cannabinoids and terpenes, as well as discussing their known mechanisms of action and evidence of potential therapeutic effects.
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Affiliation(s)
- Erin M Rock
- Department of Psychology and Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada
| | - Linda A Parker
- Department of Psychology and Collaborative Neuroscience Program, University of Guelph, Guelph, ON, Canada.
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Zhang J, Yang YN, Jiang JS, Feng ZM, Yuan X, Zhang X, Zhang PC. The discovery of new phloroglucinol glycosides from Agrimonia pilosa and the mechanism of oxidative dearomatization of the methyl-substituted phloroglucinol derivatives. RSC Adv 2021; 11:22273-22277. [PMID: 35480819 PMCID: PMC9034183 DOI: 10.1039/d1ra03588f] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2021] [Accepted: 06/15/2021] [Indexed: 12/15/2022] Open
Abstract
New phloroglucinol glycosides, aglycones, and oxidative dearomatized products of aglycones were discovered from Agrimonia pilosa, and the mechanism of the auto oxidative dearomatization was disclosed as a free radical chain reaction with 3O2.
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Affiliation(s)
- Jia Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Ya-Nan Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Jian-Shuang Jiang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Zi-Ming Feng
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Xiang Yuan
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Xu Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
| | - Pei-Cheng Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines
- Institute of Materia Medica
- Peking Union Medical College
- Chinese Academy of Medical Sciences
- Beijing 100050
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Feiner A, Pitra N, Matthews P, Pillen K, Wessjohann LA, Riewe D. Downy mildew resistance is genetically mediated by prophylactic production of phenylpropanoids in hop. PLANT, CELL & ENVIRONMENT 2021; 44:323-338. [PMID: 33037636 DOI: 10.1111/pce.13906] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/27/2020] [Revised: 09/08/2020] [Accepted: 10/01/2020] [Indexed: 05/25/2023]
Abstract
Downy mildew in hop (Humulus lupulus L.) is caused by Pseudoperonospora humuli and generates significant losses in quality and yield. To identify the biochemical processes that confer natural downy mildew resistance (DMR), a metabolome- and genome-wide association study was performed. Inoculation of a high density genotyped F1 hop population (n = 192) with the obligate biotrophic oomycete P. humuli led to variation in both the levels of thousands of specialized metabolites and DMR. We observed that metabolites of almost all major phytochemical classes were induced 48 hr after inoculation. But only a small number of metabolites were found to be correlated with DMR and these were enriched with phenylpropanoids. These metabolites were also correlated with DMR when measured from the non-infected control set. A genome-wide association study revealed co-localization of the major DMR loci and the phenylpropanoid pathway markers indicating that the major contribution to resistance is mediated by these metabolites in a heritable manner. The application of three putative prophylactic phenylpropanoids led to a reduced degree of leaf infection in susceptible genotypes, confirming their protective activity either directly or as precursors of active compounds.
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Affiliation(s)
- Alexander Feiner
- Plant Science and Breeding, Simon H. Steiner, Hopfen GmbH, Mainburg, Germany
- Deptartment of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry (IPB), Halle/Saale, Germany
| | - Nicholi Pitra
- Research and Development, S.S. Steiner, Inc., New York, USA
| | - Paul Matthews
- Research and Development, S.S. Steiner, Inc., New York, USA
| | - Klaus Pillen
- Institute of Agricultural and Nutritional Sciences, Martin-Luther University (MLU), Halle/Saale, Germany
| | - Ludger A Wessjohann
- Deptartment of Bioorganic Chemistry, Leibniz Institute of Plant Biochemistry (IPB), Halle/Saale, Germany
| | - David Riewe
- Department of Molecular Genetics, Leibniz Institute of Plant Genetics and Crop Plant Research (IPK), Seeland, Germany
- Institute for Ecological Chemistry, Plant Analysis and Stored Product Protection, Julius Kühn-Institute (JKI), Federal Research Centre for Cultivated Plants, Berlin, Germany
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Benkherouf AY, Eerola K, Soini SL, Uusi-Oukari M. Humulone Modulation of GABA A Receptors and Its Role in Hops Sleep-Promoting Activity. Front Neurosci 2020; 14:594708. [PMID: 33177986 PMCID: PMC7591795 DOI: 10.3389/fnins.2020.594708] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2020] [Accepted: 09/24/2020] [Indexed: 12/12/2022] Open
Abstract
Humulus lupulus L. (hops) is a major constituent of beer. It exhibits neuroactive properties that make it useful as a sleeping aid. These effects are hypothesized to be mediated by an increase in GABAA receptor function. In the quest to uncover the constituents responsible for the sedative and hypnotic properties of hops, recent evidence revealed that humulone, a prenylated phloroglucinol derivative comprising 35-70% of hops alpha acids, may act as a positive modulator of GABAA receptors at low micromolar concentrations. This raises the question whether humulone plays a key role in hops pharmacological activity and potentially interacts with other modulators such as ethanol, bringing further enhancement in GABAA receptor-mediated effects of beer. Here we assessed electrophysiologically the positive modulatory activity of humulone on recombinant GABAA receptors expressed in HEK293 cells. We then examined humulone interactions with other active hops compounds and ethanol on GABA-induced displacement of [3H]EBOB binding to native GABAA receptors in rat brain membranes. Using BALB/c mice, we assessed humulone's hypnotic behavior with pentobarbital- and ethanol-induced sleep as well as sedation in spontaneous locomotion with open field test. We demonstrated for the first time that humulone potentiates GABA-induced currents in α1β3γ2 receptors. In radioligand binding to native GABAA receptors, the inclusion of ethanol enhanced humulone modulation of GABA-induced displacement of [3H]EBOB binding in rat forebrain and cerebellum as it produced a leftward shift in [3H]EBOB displacement curves. Moreover, the additive modulatory effects between humulone, isoxanthohumol and 6-prenylnaringenin were evident and corresponded to the sum of [3H]EBOB displacement by each compound individually. In behavioral tests, humulone shortened sleep onset and increased the duration of sleep induced by pentobarbital and decreased the spontaneous locomotion in open field at 20 mg/kg (i.p.). Despite the absence of humulone effects on ethanol-induced sleep onset, sleep duration was increased dose-dependently down to 10 mg/kg (i.p.). Our findings confirmed humulone's positive allosteric modulation of GABAA receptor function and displayed its sedative and hypnotic behavior. Humulone modulation can be potentially enhanced by ethanol and hops modulators suggesting a probable enhancement in the intoxicating effects of ethanol in hops-enriched beer.
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Affiliation(s)
| | | | | | - Mikko Uusi-Oukari
- Integrative Physiology and Pharmacology, Institute of Biomedicine, University of Turku, Turku, Finland
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Berne S, Kovačević N, Kastelec D, Javornik B, Radišek S. Hop Polyphenols in Relation to Verticillium Wilt Resistance and Their Antifungal Activity. PLANTS (BASEL, SWITZERLAND) 2020; 9:E1318. [PMID: 33036218 PMCID: PMC7601901 DOI: 10.3390/plants9101318] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Revised: 09/30/2020] [Accepted: 10/03/2020] [Indexed: 11/17/2022]
Abstract
(1) Background: Verticillium wilt (VW) of hop is a devastating disease caused by the soil-borne fungi Verticillium nonalfalfae and Verticillium dahliae. As suggested by quantitative trait locus (QTL) mapping and RNA-Seq analyses, the underlying molecular mechanisms of resistance in hop are complex, consisting of preformed and induced defense responses, including the synthesis of various phenolic compounds. (2) Methods: We determined the total polyphenolic content at two phenological stages in roots and stems of 14 hop varieties differing in VW resistance, examined the changes in the total polyphenols of VW resistant variety Wye Target (WT) and susceptible Celeia (CE) on infection with V. nonalfalfae, and assessed the antifungal activity of six commercial phenolic compounds and total polyphenolic extracts from roots and stems of VW resistant WT and susceptible CE on the growth of two different V. nonalfalfae hop pathotypes. (3) Results: Generally, total polyphenols were higher in roots than stems and increased with maturation of the hop. Before flowering, the majority of VW resistant varieties had a significantly higher content of total polyphenols in stems than susceptible varieties. At the symptomatic stage of VW disease, total polyphenols decreased in VW resistant WT and susceptible CE plants in both roots and stems. The antifungal activity of total polyphenolic extracts against V. nonalfalfae was higher in hop extracts from stems than those from roots. Among the tested phenolic compounds, only p-coumaric acid and tyrosol markedly restricted fungal growth. (4) Conclusions: Although the correlation between VW resistance and total polyphenols content is not straightforward, higher levels of total polyphenols in the stems of the majority of VW resistant hop varieties at early phenological stages probably contribute to fast and efficient activation of signaling pathways, leading to successful defense against V. nonalfalfae infection.
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Affiliation(s)
- Sabina Berne
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (S.B.); (N.K.); (D.K.); (B.J.)
| | - Nataša Kovačević
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (S.B.); (N.K.); (D.K.); (B.J.)
| | - Damijana Kastelec
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (S.B.); (N.K.); (D.K.); (B.J.)
| | - Branka Javornik
- Department of Agronomy, Biotechnical Faculty, University of Ljubljana, Jamnikarjeva 101, SI-1000 Ljubljana, Slovenia; (S.B.); (N.K.); (D.K.); (B.J.)
| | - Sebastjan Radišek
- Slovenian Institute of Hop Research and Brewing, Cesta Žalskega tabora 2, SI-3310 Žalec, Slovenia
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Olas B, Bryś M. Beer components and their beneficial effect on the hemostasis and cardiovascular diseases- truth or falsehood. Food Chem Toxicol 2020; 146:111782. [PMID: 32991986 DOI: 10.1016/j.fct.2020.111782] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2020] [Revised: 09/15/2020] [Accepted: 09/21/2020] [Indexed: 02/07/2023]
Abstract
Beer is one of the most widely consumed alcoholic beverages in the world; however, traditional - and non-alcoholic beer consumption appear to have different effects on the cardiovascular system. In this short work, we review a base of recent papers to confirm whether, or not, moderate consumption of beer and its non-alcoholic components have a beneficial effect of cardiovascular system. Moreover, the present work reviews recently published papers regarding the influence of beer components on the hemostasis, cardiovascular system, and cardiovascular diseases (CVDs). Although most nutritional guidelines recommend a maximum of one beer per day for women and two for men, individual ideals may vary according to age, sex, genetics and body type, as well as drug or supplement use. Moreover, the recommendations for the moderate consumption of beer are often based on individual case reports and often small clinical experiments. In addition, as the health-related effects of beer consumption may also depend on the presence of other dietary components, as well as the type of beer, it is difficult to determine whether moderate consumption is universally safe and beneficial for the cardiovascular system. More randomized clinical trials are needed to determine this. Well-designed clinical trials are also required to determine the influence of various beer components on hemostasis and CVDs, and their effects in combination with drug or supplement therapy.
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Affiliation(s)
- Beata Olas
- University of Lodz, Department of General Biochemistry, Faculty of Biology and Environmental Protection, Pomorska 141/3, 90-236, Lodz, Poland.
| | - Magdalena Bryś
- University of Lodz, Department of Cytobiochemistry, Faculty of Biology and Environmental Protection, Pomorska 141/3, 90-236, Lodz, Poland
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48
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Humulus lupulus L. as a Natural Source of Functional Biomolecules. APPLIED SCIENCES-BASEL 2020. [DOI: 10.3390/app10155074] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
Hops (Humulus lupulus L.) are used traditionally in the brewing industry to confer bitterness, aroma, and flavor to beer. However, in recent years, it has been reported that female inflorescences contain a huge variety of bioactive compounds. Due to the growing interest of the consumers by natural ingredients, intense research has been carried out in the last years to find new sources of functional molecules. This review collects the works about the bioactive potential of hops with applications in the food, pharmaceutical, or cosmetic industries. Moreover, an overview of the main extraction technologies to recover biomolecules from hops is shown. Bioactivities of hop extracts such as antibacterial, antifungal, cardioprotective, antioxidant, anti-inflammatory, anticarcinogenic, and antiviral are also summarized. It can be concluded that hops present a high potential of bioactive ingredients with high quality that can be used as preservative agents in fresh foods, extending their shelf life, and they can be incorporated in cosmetic formulation for skincare as well.
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Wu CN, Sun LC, Chu YL, Yu RC, Hsieh CW, Hsu HY, Hsu FC, Cheng KC. Bioactive compounds with anti-oxidative and anti-inflammatory activities of hop extracts. Food Chem 2020; 330:127244. [PMID: 32526652 DOI: 10.1016/j.foodchem.2020.127244] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2020] [Revised: 05/25/2020] [Accepted: 06/01/2020] [Indexed: 12/27/2022]
Abstract
The aim of this study is to simultaneously evaluate anti-oxidative and anti-inflammatory activities of the hop extracts by different solvents. Hop water extract (HWE) and hop ethanol extracts (HEEs) were prepared by extracting hop pellets with hot water at 90 °C and ethanol solutions (55%, 75%, and 95%), respectively. Bioactive compound such as α-acid, β-acid, total phenolic, and total flavonoid contents were determined. All the HEEs showed higher anti-oxidative activities than the HWEs. The HEEs showing the highest anti-oxidative activities are different in the experiments with different free radicals. For anti-inflammatory activities, both the HWE and HEEs decreased NO productions. HWE decreased TNF-α and IL-6 secretion but showed no effect on IL-1β, while HEEs decreased IL-1β and IL-6 secretion but increased TNF-α secretion. Except for TNF-α secretion, the HEEs showed higher anti-inflammatory activities than the HWE. Future work is to explore the possible mechanism to improve the ethanol extraction procedure.
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Affiliation(s)
- Chun-Nan Wu
- Graduate Institute of Food Science and Technology, National Taiwan University, 1, Sec 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Li-Chin Sun
- Graduate Institute of Food Science and Technology, National Taiwan University, 1, Sec 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Yung-Lin Chu
- Department of Food Science, College of Agriculture, National Pingtung University of Science and Technology, 1, Shuefu Road, Neipu, Pingtung 91201, Taiwan
| | - Roch-Chui Yu
- Graduate Institute of Food Science and Technology, National Taiwan University, 1, Sec 4, Roosevelt Road, Taipei 10617, Taiwan
| | - Chang-Wei Hsieh
- Department of Food Science and Biotechnology, National Chung Hsing University, Taichung, Taiwan
| | - Hsien-Yi Hsu
- School of Energy and Environment & Department of Materials Science and Engineering, City University of Hong Kong, Kowloon Tong, Hong Kong, China; Shenzhen Research Institute of City University of Hong Kong, Shenzhen 518057, China
| | - Fu-Chiun Hsu
- Department of Horticulture and Landscape Architecture, National Taiwan University, Taipei 10617, Taiwan.
| | - Kuan-Chen Cheng
- Graduate Institute of Food Science and Technology, National Taiwan University, 1, Sec 4, Roosevelt Road, Taipei 10617, Taiwan; Institute of Biotechnology, National Taiwan University, 1, Sec 4, Roosevelt Road, Taipei 10617, Taiwan; Department of Medical Research, China Medical University Hospital, China Medical University, 91, Hsueh-Shih Road, Taichung 40402, Taiwan.
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50
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Wanas AS, Radwan MM, Chandra S, Lata H, Mehmedic Z, Ali A, Baser KHC, Demirci B, ElSohly MA. Chemical Composition of Volatile Oils of Fresh and Air-Dried Buds of Cannabis chemovars, Their Insecticidal and Repellent Activities. Nat Prod Commun 2020. [DOI: 10.1177/1934578x20926729] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
The volatile oils of fresh and air-dried buds of 3 different varieties of Cannabis, namely, high cannabidiol (CBD) chemotype, intermediate CBD/tetrahydrocannabinol (THC) chemotype, and high THC chemotype were prepared by hydrodistillation. Gas chromatography analysis of the volatile oils resulted in the identification of 71 compounds, of which 33 were monoterpenes and 38 were sesquiterpenes. The volatile oil obtained from the THC chemotype showed an increase in the ratio of the sesquiterpenes to monoterpenes content. The content of terpinolene was dramatically decreased upon drying of THC chemotype. Moderate increase in β-caryophyllene and caryophyllene oxide was observed. However, there was no detectable change in the percentage of monoterpenes and sesquiterpenes content in both the intermediate type and CBD chemotype upon drying. The insecticidal activity of the volatile oils was evaluated. The oil obtained from the fresh and dried high CBD cannabis showed good biting deterrent activity at 10 ug/cm2 compared with N, N-diethyl-meta-toluamide at 4.78 µg/cm2, and good larvicidal activity.
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Affiliation(s)
- Amira S. Wanas
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
- Department of Pharmacognosy, Faculty of Pharmacy, Minia University, Minia, Egypt
| | - Mohamed M. Radwan
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Suman Chandra
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Hemant Lata
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Zlatko Mehmedic
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - Abbas Ali
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
| | - KHC Baser
- Department of Pharmacognosy, Faculty of Pharmacy, Near East University, Nicosia, Cyprus
| | - Betul Demirci
- Department of Pharmacognosy, Faculty of Pharmacy, Anadolu University, Eskisehir, Turkey
| | - Mahmoud A. ElSohly
- National Center for Natural Products Research, School of Pharmacy, University of Mississippi, University, MS, USA
- Department of Pharmaceutics and Drug Delivery, School of Pharmacy, University of Mississippi, MS, USA
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