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Fkiri S, Mohamed B, Khouja M, Stiti B, Ben Salem R, Nasr Z, Ben Slimane L, Nagaz K, Ghayth R, Khaldi A. Effect of geographical origin on the chemical characteristics of Q. canariensis acorns: profiling fatty acids, tocopherols, and phenolic composition. Nat Prod Res 2024:1-7. [PMID: 38557271 DOI: 10.1080/14786419.2024.2335355] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2023] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
The impact of geographical origin on the chemical composition of acorns from Quercus species has significant attention. This study aimed to explore the phenolic composition of methanolic extracts, tocopherol content, and fatty acid composition of acorn oils from six different populations of Q. canariensis acorns. The obtained results revealed that acorn oil from BniMtir exhibited high levels of α-tocopherol (58 mg/kg). The fatty acids identified across all samples were Z-vaccenic + oleic acids (38.44-58.58%). In addition, the data highlighted the presence of quinic (32.514-60.216 µg/g DW) and gallic acids (1.674-10.849 µg/g DW), as well as catechin (+) (0.096-12.647 µg/g DW) in all populations. These variations in chemical composition from different regions are likely linked to their geographical origin. In conclusion, this study's finding should significance for the industry, offering valuable insights into the potential production of bioactive compounds from Q. canariensis acorns, which could have various applications.
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Affiliation(s)
- Sondes Fkiri
- National Institute for Researches on Rural Engineering, Water and Forests, INRGREF, Ariana, Tunisia
| | - Bagues Mohamed
- Laboratory of Drylands and Oases Cropping, Arid Regions Institute of Medenine, University of Gabes, Medenine, Tunisia
| | - Mariem Khouja
- Laboratory of Nanobiotechnology and Valorization of Medicinal Phytoresources, Department of Biology, National Institute of Applied Science and Technology, University of Carthage, Tunis Cedex, Tunisia
| | - Boutheina Stiti
- National Institute for Researches on Rural Engineering, Water and Forests, INRGREF, Ariana, Tunisia
| | - Ridha Ben Salem
- Laboratory of Organic Chemistry LR17ES08, Sciences Faculty of Sfax, University of Sfax, Sfax, Tunisia
| | - Zouhair Nasr
- National Institute for Researches on Rural Engineering, Water and Forests, INRGREF, Ariana, Tunisia
| | | | - Kamel Nagaz
- Laboratory of Drylands and Oases Cropping, Arid Regions Institute of Medenine, University of Gabes, Medenine, Tunisia
| | - Rigane Ghayth
- Laboratory of Organic Chemistry LR17ES08, Sciences Faculty of Sfax, University of Sfax, Sfax, Tunisia
- Chemistry-Physics Department, Sciences and Technology Faculty, University of Kairouan, Sidi Bouzid, Tunisia
| | - Abdelhamid Khaldi
- National Institute for Researches on Rural Engineering, Water and Forests, INRGREF, Ariana, Tunisia
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Khound P, Sarma H, Sarma PP, Jana UK, Devi R. Ultrasound-Assisted Extraction of Verbascoside from Clerodendrum glandulosum Leaves for Analysis of Antioxidant and Antidiabetic Activities. ACS OMEGA 2023; 8:20360-20369. [PMID: 37323385 PMCID: PMC10268293 DOI: 10.1021/acsomega.3c00173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 01/10/2023] [Accepted: 03/28/2023] [Indexed: 06/17/2023]
Abstract
Verbascoside (VER) is a phenylethanoid glycoside compound found in Clerodendrum species and is an important part of traditional medicine. It is found in the leaves of Clerodendrum glandulosum, which is taken as a soup or vegetable and also utilized in traditional medicine by the people of Northeast India, especially against hypertension and diabetes. In the present study, VER was extracted from C. glandulosum leaves using ultrasound-assisted extraction through the solvent extraction method (ethanol-water, ethanol, and water). The ethanol extract had the highest phenolic and flavonoid contents, viz., 110.55 mg GAE/g and 87.60 mg QE/g, respectively. HPLC and LC-MS were used to identify the active phenolic compound, and VER was found to be the main component present in the extraction with a molecular weight of 624.59 g/mol. NMR (1H, 2D-COSY) analysis showed the presence of hydroxytyrosol, caffeic acid, glucose, and rhamnose in the VER backbone. Further, different antioxidant activities and antidiabetic and antihyperlipidemia enzyme markers' inhibition against VER-enriched ethanol extract were evaluated. The results showed that ultrasound extraction of polyphenols using ethanol from C. glandulosum could be a promising technique for the extraction of bioactive compounds.
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Affiliation(s)
- Puspanjali Khound
- Life
Sciences Division, Institute of Advanced
Study in Science and Technology, Guwahati 781035, Assam, India
- Department
of Zoology, Gauhati University, Jalukbari, Guwahati 781014, Assam, India
| | - Himangshu Sarma
- Life
Sciences Division, Institute of Advanced
Study in Science and Technology, Guwahati 781035, Assam, India
| | - Partha Pratim Sarma
- Life
Sciences Division, Institute of Advanced
Study in Science and Technology, Guwahati 781035, Assam, India
| | - Uttam Kumar Jana
- Life
Sciences Division, Institute of Advanced
Study in Science and Technology, Guwahati 781035, Assam, India
| | - Rajlakshmi Devi
- Life
Sciences Division, Institute of Advanced
Study in Science and Technology, Guwahati 781035, Assam, India
- Department
of Zoology, Gauhati University, Jalukbari, Guwahati 781014, Assam, India
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Martínez Chamás J, Isla MI, Zampini IC. Antibacterial and Antibiofilm Activity of Different Species of Fabiana sp. Extract Obtained via Maceration and Ultrasound-Assisted Extraction against Staphylococcus epidermidis. PLANTS (BASEL, SWITZERLAND) 2023; 12:plants12091830. [PMID: 37176887 PMCID: PMC10180551 DOI: 10.3390/plants12091830] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Revised: 04/15/2023] [Accepted: 04/26/2023] [Indexed: 05/15/2023]
Abstract
Staphylococcus epidermidis is an opportunistic pathogen that, under certain conditions, can induce aggravated infectious processes, mainly in immunosuppressed patients. Moreover, S. epidermidis is one of the leading causes of medical device- and implant-associated infections and is also recognized as a canonical biofilm producer. Fabiana punensis, F. densa and F. patagonica are three medicinal plants that grow in arid environments in Argentina (Altoandina, Puna, Prepuna and Monte regions). In this work, we studied the antimicrobial activity of alcoholic extracts of these plant species obtained via maceration (M) and ultrasound-assisted extraction (UAE) against S. epidermidis. In addition, the antibiofilm activity of the F. densa extract was also evaluated. It was found that the extracts obtained via M did not present differences with those obtained via UAE regarding the chemical profile. F. densa showed the lowest minimum inhibitory concentration (MIC) value (75 µg GAE/mL). At concentrations higher than the MIC, the extract induced the release of cellular constituents. At the concentration of 1/8× MIC, the extract inhibited biofilm formation by 78%, reducing metabolic activity by 67%. On the other hand, it presented a low percentage of preformed biofilm removal. In all assays, gallic acid (GA) has been used as a reference antimicrobial compound. Finally, it was shown via microscopy visualization that the extract reduces adhesion to hydrophobic and hydrophilic surfaces. Thus, F. densa extracts could potentially be used for the antibiotic treatment of infections produced by S. epidermidis or as an inhibitor agent of production biofilm, avoiding infections caused by medical devices.
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Affiliation(s)
- José Martínez Chamás
- Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV-CONICET-UNT), Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, San Lorenzo 1469, San Miguel de Tucumán PC:4000, Tucumán, Argentina
| | - María Inés Isla
- Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV-CONICET-UNT), Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, San Lorenzo 1469, San Miguel de Tucumán PC:4000, Tucumán, Argentina
| | - Iris Catiana Zampini
- Laboratorio de Investigación de Productos Naturales (LIPRON), Instituto de Bioprospección y Fisiología Vegetal (INBIOFIV-CONICET-UNT), Facultad de Ciencias Naturales e IML, Universidad Nacional de Tucumán, San Lorenzo 1469, San Miguel de Tucumán PC:4000, Tucumán, Argentina
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