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Wahabi S, Rtibi K, Atouani A, Sebai H. Anti-Obesity Actions of Two Separated Aqueous Extracts From Arbutus ( Arbutus unedo) and Hawthorn ( Crataegus monogyna) Fruits Against High-Fat Diet in Rats via Potent Antioxidant Target. Dose Response 2023; 21:15593258231179904. [PMID: 37275393 PMCID: PMC10236257 DOI: 10.1177/15593258231179904] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2022] [Accepted: 05/17/2023] [Indexed: 06/07/2023] Open
Abstract
Arbutus unedo and Crataegus monogyna are widely distributed throughout the Mediterranean basin and commonly used in folk medicine against a wide range of diseases. Therefore, the present study has been designed to evaluate the anti-obesity potential of two aqueous extracts of the fruits of A. unedo (AUAE) and C. monogyna (CMAE). Male Wistar rats were supplied with a standard diet (SD), high-fat diet (HFD), HFD with the two separated extracts at the same dose (300 mg/kg, BW, p. o.), or HFD with atorvastatin-(ATOR) (2.1 mg/kg, BW, p. o.) for 12 weeks. Lipid profile and the liver and kidney linked-markers were assessed. Besides, obesity-related disorders' biomarkers were measured. AUAE, CMAE, and ATOR were observed to reduce significantly total body and organ weights following HFD-induced obese rat models. Likewise, epididymal and abdominal adipose tissue weights were noticeably decreased in HFD rats treated with both extracts and ATOR. Added to that, biochemical and metabolic changes were normalized by significant attenuation of lipid peroxidation accompanied with an increase of thiol-group concentrations and antioxidant status. More importantly, a modulation in trace element levels was revealed when compared with HFD group. Altogether, current study concluded that AUAE and CMAE could be potential candidates for the prevention and treatment of obesity and related disturbs induced by HFD.
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Affiliation(s)
- Soumaya Wahabi
- Laboratory of Functional Physiology
and Valorization of Bio-Ressources-Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Kais Rtibi
- Laboratory of Functional Physiology
and Valorization of Bio-Ressources-Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
| | - Amal Atouani
- Clinical Biology Laboratory, Beja
Regional Hospital, Beja, Tunisia
| | - Hichem Sebai
- Laboratory of Functional Physiology
and Valorization of Bio-Ressources-Higher Institute of Biotechnology of Beja, University of Jendouba, Beja, Tunisia
- University of Jendouba, Jendouba, Tunisia
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Tejedor-Calvo E, Morales D. Chemical and Aromatic Changes during Fermentation of Kombucha Beverages Produced Using Strawberry Tree (Arbutus unedo) Fruits. Fermentation 2023. [DOI: 10.3390/fermentation9040326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/29/2023]
Abstract
The use of alternative ingredients in the production of kombucha has seen a recent increase. Our research aimed to characterize the chemical, nutritional, microbial, and aromatic profiles of kombucha beverages prepared with strawberry tree (Arbutus unedo) fruits fermented with three different SCOBYs for 21 days. The analyses showed similar levels of microbiological groups (aerobic mesophilic microorganisms, lactic acid bacteria, acetic acid bacteria, and yeasts)among the SCOBYs used. The beverages studied displayed a decrease in pH value and carbohydrate content, and protein degradation was also observed as fermentation progressed. However, the increase in total phenolic compounds during the first week proved to be a point of interest. A total of 20 volatile organic compounds were detected, giving different sensory qualities to the beverages: higher ethanol, benzaldehyde-4-ethyl, or acetic acid depending on the SCOBY used. The results obtained indicated that strawberry tree kombucha might be an alternative beverage with notable nutritional and aromatic properties, with fermentation time and SCOBY composition being identified as crucial factors.
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Morales D. Use of Strawberry Tree ( Arbutus unedo) as a Source of Functional Fractions with Biological Activities. Foods 2022; 11:foods11233838. [PMID: 36496646 PMCID: PMC9736438 DOI: 10.3390/foods11233838] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2022] [Revised: 11/21/2022] [Accepted: 11/23/2022] [Indexed: 11/29/2022] Open
Abstract
Arbutus unedo, commonly named 'strawberry tree' (ST), is a Mediterranean native plant that represents a relevant source of biologically active fractions and compounds. ST fruits, traditionally used with culinary and medicinal purposes, along with other components (leaves, roots, honeys, etc.), have been subjected to varied extraction procedures to obtain enriched and bioactive products. This work reviewed the scientific literature, searching for studies that evaluated the potential health implications of ST fractions and attending to the tested biological activities (antioxidant, antiproliferative, hypoglycemic, immune-modulatory, antihypertensive, antimicrobial, etc.), the part of the tree, the experimental model, the specific bioactive compounds and the selected extraction protocol. Furthermore, the strengths and weaknesses of the current state of the published evidence were critically analysed. Although in vitro results demonstrated the potential of ST fractions, further research is encouraged in order to obtain in vivo evidence (animal and clinical studies), assess additional activities (hypocholesterolemic, microbiome-modulatory), maximize the use of advanced extraction technologies, purify and isolate specific bioactive compounds and broaden the analysis investigating phenolic and non-phenolic molecules and their bioavailability.
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Affiliation(s)
- Diego Morales
- Nutrigenomics Research Group, Department of Biochemistry and Biotechnology, Universitat Rovira i Virgili, 43007 Tarragona, Spain
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Baleiras-Couto MM, Caldeira I, Gomes F, Botelho G, Duarte FL. Saccharomyces cerevisiae Diversity in Arbutus unedo L. Fermentations in Association with the Volatile and Sensory Similarities of the Distillates. Foods 2022; 11:foods11131916. [PMID: 35804732 PMCID: PMC9265601 DOI: 10.3390/foods11131916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2022] [Revised: 06/21/2022] [Accepted: 06/24/2022] [Indexed: 12/04/2022] Open
Abstract
The fermentation of Arbutus unedo L. fruit is traditionally carried out in the production of spirits. The present study followed the spontaneous fermentation of A. unedo fruit harvested in October and December 2019 by two producers from the central region of Portugal. The microbiota was studied, and although a great diversity of indigenous yeasts was found, S. cerevisiae isolates could still be grouped into eight clusters, and a good separation between producers was achieved. Based on the results of a multivariate analysis of the physical-chemical and volatile composition of the distillates, a distinction between the distillates from the two producers was determined. Moreover, these findings are corroborated by the similarities in flavor that were found. Along with the variability found in the distillates, S. cerevisiae isolates could be clustered and associated with each producer. On the other hand, the differentiation of the harvesting period was not so clear. The characterization of the indigenous yeasts associated with the fermentation process of Arbutus unedo L. fruit can serve as an important contribution to the preservation of the specific characteristics of its distillates.
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Affiliation(s)
- M. Margarida Baleiras-Couto
- INIAV IP.—Instituto Nacional de Investigação Agrária e Veterinária, Pólo de Dois Portos, Quinta de Almoínha, 2565-191 Dois Portos, Portugal; (I.C.); (F.L.D.)
- BioISI—Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal
- Correspondence: ; Tel.: +351-261712500
| | - Ilda Caldeira
- INIAV IP.—Instituto Nacional de Investigação Agrária e Veterinária, Pólo de Dois Portos, Quinta de Almoínha, 2565-191 Dois Portos, Portugal; (I.C.); (F.L.D.)
- MED—Mediterranean Institute for Agriculture, Environment and Development, Institute for Advanced Studies and Research, Universidade de Évora, 7006-554 Évora, Portugal
| | - Filomena Gomes
- CERNAS—Research Centre for Natural Resources, Environment and Society, Polytechnic Institute of Coimbra, Coimbra Agriculture School, 3045-601 Coimbra, Portugal; (F.G.); (G.B.)
| | - Goreti Botelho
- CERNAS—Research Centre for Natural Resources, Environment and Society, Polytechnic Institute of Coimbra, Coimbra Agriculture School, 3045-601 Coimbra, Portugal; (F.G.); (G.B.)
| | - Filomena L. Duarte
- INIAV IP.—Instituto Nacional de Investigação Agrária e Veterinária, Pólo de Dois Portos, Quinta de Almoínha, 2565-191 Dois Portos, Portugal; (I.C.); (F.L.D.)
- BioISI—Biosystems and Integrative Sciences Institute, Faculty of Sciences, University of Lisbon, 1749-016 Lisbon, Portugal
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Brčić Karačonji I, Jurica K, Gašić U, Dramićanin A, Tešić Ž, Milojković Opsenica D. Comparative Study on the Phenolic Fingerprint and Antioxidant Activity of Strawberry Tree (Arbutus unedo L.) Leaves and Fruits. Plants 2021; 11:plants11010025. [PMID: 35009028 PMCID: PMC8747429 DOI: 10.3390/plants11010025] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/17/2021] [Accepted: 12/18/2021] [Indexed: 11/16/2022]
Abstract
The strawberry tree (Arbutus unedo L., Ericaceae family) is an evergreen Mediterranean shrub whose leaves and fruits are used in traditional medicine due to their antioxidant, antimicrobial, antidiabetic, diuretic, and antiproliferative properties. The health benefits are mainly attributed to the presence of phenolic compounds. The aim of this study was to compare the phenolic profiles, total phenolic content (TPC), and radical scavenging activity (RSA) of A. unedo leaves and fruits collected at two locations in Croatia. Phenolic profiles were identified using an ultra-high-performance liquid chromatograph (UHPLC) coupled with a hybrid mass spectrometer (LTQ Orbitrap MS). TPC was determined by Folin–Ciocalteu’s assay, while RSA was investigated using DPPH reagent. A total of 64 phenolics (60 and 42 compounds in leaves and fruits, respectively) were identified. Hyperoside and flavan-3-ols were predominant compounds in leaves, while gallocatechin and catechin were the major compounds found in fruits. To the authors’ knowledge, 16 and 5 phenolics in leaves and fruits, respectively, were reported for the first time. Principal component analysis (PCA) showed that UHPLC-LTQ Orbitrap MS could be used to identify which phenolics were able to discriminate samples regarding plant tissue and geographical origin. TPC in leaves and fruits were in the ranges of 67.07–104.74 and 16.78–25.86 mg gallic acid equivalents (GAE)/g dried weight (dw), respectively. RSA for leaves and fruits were in the ranges of 408.92–430.98 and 74.30–104.04 μmol Trolox equivalents (TE)/g dw, respectively. The number of identified phenolics was lower in fruits compared to leaves. Such a large number of bioactive phenolics identified and the strong antioxidant activity pointed to A. unedo as a promising health-promoting plant and natural food preservative.
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Affiliation(s)
- Irena Brčić Karačonji
- Analytical Toxicology and Mineral Metabolism Unit, Institute for Medical Research and Occupational Health, Ksaverska Cesta 2, 10000 Zagreb, Croatia
- Faculty of Health Studies, University of Rijeka, Viktora Cara Emina 5, 51000 Rijeka, Croatia
- Correspondence: (I.B.K.); (U.G.)
| | - Karlo Jurica
- Special Security Operations Directorate, Ministry of the Interior, Ulica grada Vukovara 33, 10000 Zagreb, Croatia;
| | - Uroš Gašić
- Institute for Biological Research “Siniša Stanković”—National Institute of Republic of Serbia, University of Belgrade, Bulevar despota Stefana 142, 11060 Belgrade, Serbia
- Correspondence: (I.B.K.); (U.G.)
| | - Aleksandra Dramićanin
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia; (A.D.); (Ž.T.); (D.M.O.)
| | - Živoslav Tešić
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia; (A.D.); (Ž.T.); (D.M.O.)
| | - Dušanka Milojković Opsenica
- Faculty of Chemistry, University of Belgrade, Studentski trg 12-16, 11158 Belgrade, Serbia; (A.D.); (Ž.T.); (D.M.O.)
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Abbott GW, Redford KE, Yoshimura RF, Manville RW, Moreira L, Tran K, Arena G, Kookootsedes A, Lasky E, Gunnison E. KCNQ and KCNE Isoform-Dependent Pharmacology Rationalizes Native American Dual Use of Specific Plants as Both Analgesics and Gastrointestinal Therapeutics. Front Physiol 2021; 12:777057. [PMID: 34858215 PMCID: PMC8632246 DOI: 10.3389/fphys.2021.777057] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2021] [Accepted: 10/14/2021] [Indexed: 12/12/2022] Open
Abstract
Indigenous peoples of the Americas are proficient in botanical medicine. KCNQ family voltage-gated potassium (Kv) channels are sensitive to a variety of ligands, including plant metabolites. Here, we screened methanolic extracts prepared from 40 Californian coastal redwood forest plants for effects on Kv current and membrane potential in Xenopus oocytes heterologously expressing KCNQ2/3, which regulates excitability of neurons, including those that sense pain. Extracts from 9 of the 40 plant species increased KCNQ2/3 current at –60 mV by ≥threefold (maximally, 15-fold by Urtica dioica) and/or hyperpolarized membrane potential by ≥-3 mV (maximally, –11 mV by Arctostaphylos glandulosa). All nine plants have traditionally been used as both analgesics and gastrointestinal therapeutics. Of two extracts tested, both acted as KCNQ-dependent analgesics in mice. KCNQ2/3 activation at physiologically relevant, subthreshold membrane potentials by tannic acid, gallic acid and quercetin provided molecular correlates for analgesic action of several of the plants. While tannic acid also activated KCNQ1 and KCNQ1-KCNE1 at hyperpolarized, negative membrane potentials, it inhibited KCNQ1-KCNE3 at both negative and positive membrane potentials, mechanistically rationalizing historical use of tannic acid-containing plants as gastrointestinal therapeutics. KCNE dependence of KCNQ channel modulation by plant metabolites therefore provides a molecular mechanistic basis for Native American use of specific plants as both analgesics and gastrointestinal aids.
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Affiliation(s)
- Geoffrey W Abbott
- Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, Irvine, CA, United States
| | - Kaitlyn E Redford
- Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, Irvine, CA, United States
| | - Ryan F Yoshimura
- Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, Irvine, CA, United States
| | - Rían W Manville
- Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, Irvine, CA, United States
| | - Luiz Moreira
- Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, Irvine, CA, United States
| | - Kevin Tran
- Bioelectricity Laboratory, Department of Physiology and Biophysics, School of Medicine, University of California, Irvine, Irvine, CA, United States
| | - Grey Arena
- Redwood Creek Vegetation Team, National Park Service, Sausalito, CA, United States
| | | | - Emma Lasky
- Redwood Creek Vegetation Team, National Park Service, Sausalito, CA, United States
| | - Elliot Gunnison
- Redwood Creek Vegetation Team, National Park Service, Sausalito, CA, United States
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Ait lhaj Z, Bchitou R, Gaboun F, Abdelwahd R, Benabdelouahab T, Kabbour MR, Pare P, Diria G, Bakhy K. Moroccan Strawberry Tree ( Arbutus unedo L.) Fruits: Nutritional Value and Mineral Composition. Foods 2021; 10:foods10102263. [PMID: 34681311 PMCID: PMC8534792 DOI: 10.3390/foods10102263] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2021] [Revised: 07/12/2021] [Accepted: 07/12/2021] [Indexed: 12/02/2022] Open
Abstract
The strawberry tree (Arbutus unedo L.), grown throughout the Mediterranean, produces edible fruit; as it is easily bruised, the sweet, reddish fruit is used mostly to prepare jams, marmalades and alcoholic beverages. As the genus is paraphyletic, phytochemical analysis can assist in defining the fruit composition with the species Arbutus unedo L. (A. unedo). Here we report on the carbohydrate, total sugar, protein, fat, fiber, ash, and mineral content of wild fruit, harvested from 45 specimens from five locations. The dominant nutrients were carbohydrates (78.2–84.8 g/100 g), total sugars (52.1–67.2 g/100 g) and dietary fiber (11.0–20.1 g/100 g). Other important nutrients supplied by A. unedo fruit include P, K, and Fe. The fruit was observed to contain health-promoting components providing 42 and 36%, of recommended daily allowance (RDA) for fiber and zinc, respectively, as well as iron and manganese, at levels exceeding minimum RDA. The free-sugar profile revealed high glucose followed by fructose content with minor amounts of sucrose (14, 11, and 6 g/100 g, respectively). Significant differences both between regions and within individuals were observed for several traits. The richness of fruit nutrients in A. unedo confers nutritional value and as such, a promising alternative fruit source.
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Affiliation(s)
- Zakaria Ait lhaj
- Research Unit on Plant Breeding and Conservation of Plant Genetic Resources and Biotechnology, National Institute of Agricultural Research (INRA), Rabat BP 6570, Morocco; (Z.A.l.); (F.G.); (R.A.); (T.B.); (M.R.K.); (G.D.)
- Center of Materials Science, Nanostructures Laboratory, Process Engineering and Environment, Faculty of Sciences, Université Mohammed V de Rabat Siège, Rabat 10000, Morocco;
| | - Rahma Bchitou
- Center of Materials Science, Nanostructures Laboratory, Process Engineering and Environment, Faculty of Sciences, Université Mohammed V de Rabat Siège, Rabat 10000, Morocco;
| | - Fatima Gaboun
- Research Unit on Plant Breeding and Conservation of Plant Genetic Resources and Biotechnology, National Institute of Agricultural Research (INRA), Rabat BP 6570, Morocco; (Z.A.l.); (F.G.); (R.A.); (T.B.); (M.R.K.); (G.D.)
| | - Rabha Abdelwahd
- Research Unit on Plant Breeding and Conservation of Plant Genetic Resources and Biotechnology, National Institute of Agricultural Research (INRA), Rabat BP 6570, Morocco; (Z.A.l.); (F.G.); (R.A.); (T.B.); (M.R.K.); (G.D.)
| | - Tarik Benabdelouahab
- Research Unit on Plant Breeding and Conservation of Plant Genetic Resources and Biotechnology, National Institute of Agricultural Research (INRA), Rabat BP 6570, Morocco; (Z.A.l.); (F.G.); (R.A.); (T.B.); (M.R.K.); (G.D.)
| | - Mohammed Rachid Kabbour
- Research Unit on Plant Breeding and Conservation of Plant Genetic Resources and Biotechnology, National Institute of Agricultural Research (INRA), Rabat BP 6570, Morocco; (Z.A.l.); (F.G.); (R.A.); (T.B.); (M.R.K.); (G.D.)
| | - Paul Pare
- Department of Chemistry & Biochemistry, Texas Tech University, Lubbock, TX 79409, USA;
| | - Ghizlane Diria
- Research Unit on Plant Breeding and Conservation of Plant Genetic Resources and Biotechnology, National Institute of Agricultural Research (INRA), Rabat BP 6570, Morocco; (Z.A.l.); (F.G.); (R.A.); (T.B.); (M.R.K.); (G.D.)
| | - Khadija Bakhy
- Research Unit on Plant Breeding and Conservation of Plant Genetic Resources and Biotechnology, National Institute of Agricultural Research (INRA), Rabat BP 6570, Morocco; (Z.A.l.); (F.G.); (R.A.); (T.B.); (M.R.K.); (G.D.)
- Correspondence: ; Tel.: +212-267-8981-039
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Buzgaia N, Lee SY, Rukayadi Y, Abas F, Shaari K. Antioxidant Activity, α-Glucosidase Inhibition and UHPLC-ESI-MS/MS Profile of Shmar ( Arbutus pavarii Pamp). Plants (Basel) 2021; 10:1659. [PMID: 34451703 DOI: 10.3390/plants10081659] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/29/2021] [Revised: 05/17/2021] [Accepted: 05/22/2021] [Indexed: 01/09/2023]
Abstract
The genus Arbutus (Ericaceae) has been traditionally used in folk medicine due to its phytomedicinal properties, especially Arbutus pavarii Pamp. However, this plant has not been evaluated for its efficacy, quality, and consistency to support the traditional uses, potentially in treating diabetes. Despite previous studies that revealed the biological activities of A. pavarii as antioxidant and α-glucosidase inhibitory agents, scientific reports on the bioactive compounds that contribute to its health benefits are still scarce. Therefore, this research focused on the evaluation of antioxidant and α-glucosidase inhibitory activities of the methanol crude extracts and various fractions of the leaf and stem bark, as well as on metabolite profiling of the methanol crude extracts. The extracts and fractions were evaluated for total phenolic (TPC) and total flavonoid (TFC) contents, as well as the DPPH free radical scavenging, ferric reducing antioxidant power (FRAP), and α-glucosidase inhibitory activities. Methanol crude extracts of the leaf and stem bark were then subjected to UHPLC-ESI-MS/MS. To the best of our knowledge, the comparative evaluation of the antioxidant and α-glucosidase inhibitory activities of the leaf and stem bark of A. pavarii, as well as of the respective solvent fractions, is reported herein for the first time. Out of these extracts, the methanolic crude extracts and polar fractions (ethyl acetate and butanol fractions) showed significant bioactivities. The DPPH free radical and α-glucosidase inhibitions was highest in the leaf ethyl acetate fraction, with IC50 of 6.39 and 4.93 µg/mL, respectively, while the leaf methanol crude extract and butanol fraction exhibited the highest FRAP with 82.95 and 82.17 mmol Fe (II)/g extract. The UHPLC-ESI-MS/MS analysis resulted in the putative identification of a total of 76 compounds from the leaf and stem bark, comprising a large proportion of plant phenolics (flavonoids and phenolic acids), terpenoids, and fatty acid derivatives. Results from the present study showed that the different parts of A. pavarii had potent antioxidant and α-glucosidase inhibitory activities, which could potentially prevent oxidative damage or diabetes-related problems. These findings may strengthen the traditional claim on the medicinal value of A. pavarii.
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Buzgaia N, Awin T, Elabbar F, Abdusalam K, Lee SY, Rukayadi Y, Abas F, Shaari K. Antibacterial Activity of Arbutus pavarii Pamp against Methicillin-Resistant Staphylococcus aureus (MRSA) and UHPLC-MS/MS Profile of the Bioactive Fraction. Plants (Basel) 2020; 9:E1539. [PMID: 33187073 PMCID: PMC7696162 DOI: 10.3390/plants9111539] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/02/2020] [Revised: 10/26/2020] [Accepted: 11/03/2020] [Indexed: 01/05/2023]
Abstract
Arbutus pavarii Pamp is a medicinal plant commonly used by local tribes in East Libya for the treatment of many diseases, such as gastritis, renal infections, cancer and kidney diseases. In this study, the antibacterial activity of the leaf and stem bark extracts of the plant against methicillin-resistant Staphylococcus aureus (MRSA), as well as the metabolite profiles of the bioactive fractions, was investigated. The antibacterial activity was determined by disc diffusion method, minimum inhibitory concentration (MIC) and minimum bactericidal concentration (MBC), while the microbial reduction by the bioactive fraction was evaluated using time-kill test. The bioactive fraction was further subjected to ultrahigh-performance liquid chromatography-mass spectrometry (UHPLC-ESI-MS/MS) analysis to putatively identify the chemical constituents contained therein. All the extracts and fractions showed different levels of antibacterial activity on the tested MRSA strains. The highest total antibacterial activity, i.e., 4007.6 mL/g, was exhibited by the crude leaf methanolic extract. However, the ethyl acetate fraction of the leaf showed moderate to significant antibacterial activity against MRSA at low MIC (0.08-1.25 mg/mL). Metabolite profiling of this fraction using UHPLC-ESI-MS/MS resulted in the putative identification of 28 compounds, which included phenolic acids, flavan-3-ols and flavonols. The results of this study showed that the ethyl acetate fraction of Arbutus pavarii leaf possessed potential antibacterial activity against MRSA and hence can be further explored for pharmaceutical applications as a natural antibacterial agent.
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Affiliation(s)
- Nawal Buzgaia
- Department of Chemistry, Faculty of Science, University of Benghazi, Benghazi, Libya; (N.B.); (T.A.); (F.E.)
- Natural Medicines and Products Research Laboratory (NaturMeds), Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (K.A.); (S.Y.L.); (Y.R.); (F.A.)
| | - Tahani Awin
- Department of Chemistry, Faculty of Science, University of Benghazi, Benghazi, Libya; (N.B.); (T.A.); (F.E.)
| | - Fakhri Elabbar
- Department of Chemistry, Faculty of Science, University of Benghazi, Benghazi, Libya; (N.B.); (T.A.); (F.E.)
| | - Khaled Abdusalam
- Natural Medicines and Products Research Laboratory (NaturMeds), Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (K.A.); (S.Y.L.); (Y.R.); (F.A.)
- Department of Microbiology, Faculty of Science, University of Gharyan, Gharyan, Libya
| | - Soo Yee Lee
- Natural Medicines and Products Research Laboratory (NaturMeds), Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (K.A.); (S.Y.L.); (Y.R.); (F.A.)
| | - Yaya Rukayadi
- Natural Medicines and Products Research Laboratory (NaturMeds), Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (K.A.); (S.Y.L.); (Y.R.); (F.A.)
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia
| | - Faridah Abas
- Natural Medicines and Products Research Laboratory (NaturMeds), Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (K.A.); (S.Y.L.); (Y.R.); (F.A.)
- Department of Food Science, Faculty of Food Science and Technology, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia
| | - Khozirah Shaari
- Natural Medicines and Products Research Laboratory (NaturMeds), Institute of Bioscience, Universiti Putra Malaysia, UPM Serdang 43400, Selangor, Malaysia; (K.A.); (S.Y.L.); (Y.R.); (F.A.)
- Department of Chemistry, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Malaysia
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Jin J, Boersch M, Nagarajan A, Davey AK, Zunk M. Antioxidant Properties and Reported Ethnomedicinal Use of the Genus Echium (Boraginaceae). Antioxidants (Basel) 2020; 9:E722. [PMID: 32784832 PMCID: PMC7466025 DOI: 10.3390/antiox9080722] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2020] [Revised: 08/06/2020] [Accepted: 08/06/2020] [Indexed: 11/17/2022] Open
Abstract
The genus Echium L. from the Boraginaceae family consists of 67 recognised species. The genus is widely distributed in the Mediterranean, having been documented in the traditional medicine of the area since 300 B.C. Current pharmacological studies have validated early ethnomedicinal properties showing that Echium spp. possesses antioxidant, analgesic, anxiolytic, anti-inflammatory, antibacterial, and antiviral effects. Nevertheless, only limited papers report specifically on the phytochemistry of this genus. Furthermore, the potential of utilising extracts from Echium species as natural antioxidant preparations has been significantly neglected. For the first time, this review comprehensively describes and discusses the presence of recorded Echium species with ethnomedicinal uses, their antioxidative properties in vitro and in vivo when available, and major phytochemical components recognised as potent antioxidants, as well as the possibilities and opportunities for future research.
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Affiliation(s)
- Ju Jin
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast Campus, 4222 Queensland, Australia; (J.J.); (A.N.); (M.B.); (A.K.D.)
- Quality Use of Medicines Network, Griffith University, Gold Coast Campus, 4222 Queensland, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, 4222 Queensland, Australia
| | - Mark Boersch
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast Campus, 4222 Queensland, Australia; (J.J.); (A.N.); (M.B.); (A.K.D.)
| | - Akshaya Nagarajan
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast Campus, 4222 Queensland, Australia; (J.J.); (A.N.); (M.B.); (A.K.D.)
| | - Andrew K. Davey
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast Campus, 4222 Queensland, Australia; (J.J.); (A.N.); (M.B.); (A.K.D.)
- Quality Use of Medicines Network, Griffith University, Gold Coast Campus, 4222 Queensland, Australia
| | - Matthew Zunk
- School of Pharmacy and Pharmacology, Griffith University, Gold Coast Campus, 4222 Queensland, Australia; (J.J.); (A.N.); (M.B.); (A.K.D.)
- Quality Use of Medicines Network, Griffith University, Gold Coast Campus, 4222 Queensland, Australia
- Menzies Health Institute Queensland, Griffith University, Gold Coast Campus, 4222 Queensland, Australia
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Nissen L, Bordoni A, Gianotti A. Shift of Volatile Organic Compounds (VOCs) in Gluten-Free Hemp-Enriched Sourdough Bread: A Metabolomic Approach. Nutrients 2020; 12:nu12041050. [PMID: 32290149 PMCID: PMC7230689 DOI: 10.3390/nu12041050] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2020] [Revised: 04/01/2020] [Accepted: 04/07/2020] [Indexed: 02/08/2023] Open
Abstract
Hemp seed flour represents a potential ingredient for protein enrichment of gluten-free bakery products, the nutritional value of which could be further increased by fermentation with sourdough or with beneficial lactic acid bacteria strains. In this study, a metabolomic approach was used to evaluate the effect of hemp seed flour addition and sourdough fermentation on the production of flavoring and health-related volatile organic compounds (VOCs) in a gluten-free bread. Multivariate analysis of VOCs provided an in-depth description of the effects of hemp seed flour addition and sourdough fermentation on flavoring and bioactive compounds. In particular, an increased concentration of antimicrobial compounds, a larger spectrum of bioactive VOCs and a typical flavoring profile was evidenced in comparison to standard products. Furthermore, an increase of fermentation metabolites was observed in comparison to a standard dough, relating to abundances of 2-butanone-3-hydroxy, acetic acid, ethanol, and 1,4-butanediol. This study provides new insights on the evolution of flavoring and bioactive hemp seed flour constituents during sourdough fermentation, evidencing their retention in baked goods, and describes a new approach that could guide the formulation of innovative, fermented food with enhanced nutritional value.
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Affiliation(s)
- Lorenzo Nissen
- CIRI - Interdepartamental Centre of Agri-Food Industrial Research, Alma Mater Studiorum University of Bologna, P.za G. Goidanich 60, 47521 Cesena, FC, Italy; (L.N.); (A.G.)
| | - Alessandra Bordoni
- CIRI - Interdepartamental Centre of Agri-Food Industrial Research, Alma Mater Studiorum University of Bologna, P.za G. Goidanich 60, 47521 Cesena, FC, Italy; (L.N.); (A.G.)
- DiSTAL-Department of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna, Piazza Goidanich, 60–47521 Cesena (FC), Italy
- Correspondence:
| | - Andrea Gianotti
- CIRI - Interdepartamental Centre of Agri-Food Industrial Research, Alma Mater Studiorum University of Bologna, P.za G. Goidanich 60, 47521 Cesena, FC, Italy; (L.N.); (A.G.)
- DiSTAL-Department of Agricultural and Food Sciences, Alma Mater Studiorum University of Bologna, Piazza Goidanich, 60–47521 Cesena (FC), Italy
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Tenuta MC, Deguin B, Loizzo MR, Dugay A, Acquaviva R, Malfa GA, Bonesi M, Bouzidi C, Tundis R. Contribution of Flavonoids and Iridoids to the Hypoglycaemic, Antioxidant, and Nitric Oxide (NO) Inhibitory Activities of Arbutus unedo L. Antioxidants (Basel) 2020; 9:antiox9020184. [PMID: 32098404 PMCID: PMC7071084 DOI: 10.3390/antiox9020184] [Citation(s) in RCA: 38] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2020] [Revised: 02/11/2020] [Accepted: 02/20/2020] [Indexed: 12/16/2022] Open
Abstract
This study aims at investigating the contribution of two classes of compounds, flavonoids and iridoids, to the bioactivity of Arbutus unedo L. leaves and fruits. The impact of different extraction procedures on phytochemicals content and hypoglycemic, antioxidant, and nitric oxide (NO) inhibitory activities of A. unedo fresh and dried plant materials was investigated. Ellagic acid 4-O-β-D-glucopyranoside, kaempferol 3-O-glucoside, and norbergenin were identified for the first time in this genus by using liquid chromatography-electrospray ionization-quadrupole-time of flight-mass spectrometry (LC-ESI-QTOF-MS). Three iridoids (gardenoside, geniposide, unedoside) are specifically identified in the leaves. Interestingly, asperuloside was extracted only from dried fruits by ethanol with Soxhlet apparatus. Extracts were screened for their potential antioxidant activities by using the 2,2′-azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) (ABTS), 2,2-diphenyl-1-picrylhydrazyl (DPPH), Ferric Reducing Activity Power (FRAP), and β-carotene bleaching tests. Based on the Global Antioxidant Score (GAS) calculation, the most promising antioxidant extract was obtained by hydroalcoholic maceration of dried leaves that showed half maximal inhibitory concentration (IC50) of 0.42 and 0.98 μg/mL in ABTS and DPPH assays, respectively. The hypoglycaemic activity was investigated by α-amylase and α-glucosidase inhibition tests. Extracts obtained by ethanol ultrasound extraction of fresh leaves and hydroalcoholic maceration of fresh fruits (IC50 of 19.56 and 28.42 μg/mL, respectively) are more active against α-glucosidase than the positive control acarbose (IC50 of 35.50 μg/mL). Fruit extracts exhibited the highest anti-inflammatory activity.
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Affiliation(s)
- Maria Concetta Tenuta
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (Cosenza), Italy; (M.C.T.); (M.R.L.); (M.B.); (R.T.)
- Université de Paris, UFR de Pharmacie de Paris, U.M.R. n°8038, -CiTCoM- (CNRS, Université de Paris), F-75006 Paris, France; (A.D.); (C.B.)
| | - Brigitte Deguin
- Université de Paris, UFR de Pharmacie de Paris, U.M.R. n°8038, -CiTCoM- (CNRS, Université de Paris), F-75006 Paris, France; (A.D.); (C.B.)
- Correspondence:
| | - Monica Rosa Loizzo
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (Cosenza), Italy; (M.C.T.); (M.R.L.); (M.B.); (R.T.)
| | - Annabelle Dugay
- Université de Paris, UFR de Pharmacie de Paris, U.M.R. n°8038, -CiTCoM- (CNRS, Université de Paris), F-75006 Paris, France; (A.D.); (C.B.)
| | - Rosaria Acquaviva
- Department of Drug Science - Biochemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (R.A.); (G.A.M.)
| | - Giuseppe Antonio Malfa
- Department of Drug Science - Biochemistry Section, University of Catania, Viale A. Doria 6, 95125 Catania, Italy; (R.A.); (G.A.M.)
| | - Marco Bonesi
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (Cosenza), Italy; (M.C.T.); (M.R.L.); (M.B.); (R.T.)
| | - Chouaha Bouzidi
- Université de Paris, UFR de Pharmacie de Paris, U.M.R. n°8038, -CiTCoM- (CNRS, Université de Paris), F-75006 Paris, France; (A.D.); (C.B.)
| | - Rosa Tundis
- Department of Pharmacy, Health and Nutritional Sciences, University of Calabria, 87036 Rende (Cosenza), Italy; (M.C.T.); (M.R.L.); (M.B.); (R.T.)
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Affiliation(s)
- Jianbo Xiao
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, China
| | - Weibin Bai
- Department of Food Science and Engineering, Institute of Food Safety and Nutrition, Guangdong Engineering Technology Center of Food Safety Molecular Rapid Detection, Jinan University, Guangzhou, China
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