Peel essential oil of bergamot （Citrus bergamia Risso） growing in Tunisia was separated by hydrodistillation and obtained in a yield of 9.7%. The oil composition was investigated using GC and GC-MS with two columns ...Peel essential oil of bergamot （Citrus bergamia Risso） growing in Tunisia was separated by hydrodistillation and obtained in a yield of 9.7%. The oil composition was investigated using GC and GC-MS with two columns HP-I and HP-Innowax. Fifteen compounds accounting for 98.52% of the oil were identified. The oil was characterized by bigb content oflimonene （59.21%）, linalool （9.51%） and linalyl acetate （16.83%）.展开更多
The bergamot （Citrus bergamia Risso et Poiteau）, a citrus fruit growing almost exclusively in the South Italy, is considered the ＂prince of citrus＂ for its storical role in the perfume industry due to its essentia...The bergamot （Citrus bergamia Risso et Poiteau）, a citrus fruit growing almost exclusively in the South Italy, is considered the ＂prince of citrus＂ for its storical role in the perfume industry due to its essential oil, a product in great demand of a pleasant and refreshing scent. Recently, analgesic, anxiolytic, neuroprotective consistent effects have been ascribed to bergamot essential oil when it is used in aromatherapy, for the relief of pain and symptoms associated with stress-induced anxiety and depression. Moreover, today, bergamot fruit due to a considerable abundance and variety of nutraceutical compounds which are present in its juice, is becoming increasingly important also in the food, pharmaceutical and confectionery industries. In this review, it is discussed that the literature on C. bergamia, focusing on the several studies performed with the experimental data, and recently accumulated, may form the rational basis for further development.展开更多
Listeria monocytogenes is a prominent cause of foodborne illnesses and public health concerns worldwide.Naturally active compounds have been extensively explored for their potential to reduce foodborne pathogenic cont...Listeria monocytogenes is a prominent cause of foodborne illnesses and public health concerns worldwide.Naturally active compounds have been extensively explored for their potential to reduce foodborne pathogenic contamination.This work is designed to study the chemical composition,antibacterial effect,and inhibition mechanism of Citrus bergamia essential oil(CB-EO)against L.monocytogenes.The CB-EO composition revealed the major components of the total account are D-limonene(23.2%),linalyl acetate(14.01%),and linalool(9.96%).The inhibitory effect was examined at different concentrations of CB-EO,and the MIC value was 1.5 mg/mL against L.monocytogenes.The CB-EO concentration of 1.5 mg/mL significantly disturbed the membrane permeability and fluidity,leading to leakage of intracellular protein and DNA constituents,as revealed by the BCA protein assay and UV-Vis spectrophotometric analysis,respectively.However,a decrease in concentration to 0.75 mg/mL indicated a significant decline in intracellular macromolecule leakage as well as membrane disruption.Moreover,SEM and CLSM observations provided extensive insight into the inhibition mechanism of CB-EO against L.monocytogenes.Finally,while investigating the anti-hemolysis activity,CB-EO and its major compounds,limonene,linalool,and linalyle acetate,have been found to be effective against the virulence agent listeriolysin O(LLO).Thus,it was proposed that CB-EO could act on L.monocytogenes cells through multiple mechanisms of action,with EO concentration providing a crucial role in determining the mode of action.This work offers deep insight into the inhibition mechanisms of natural substances,expanding the potential uses of CB-EO as a natural antimicrobial.展开更多
Flavonoids are secondary metabolites from aromatic plants and one of the most present classes in the vegetable kingdom.This is thanks to its antioxidant properties but also through its benefits on the human body that ...Flavonoids are secondary metabolites from aromatic plants and one of the most present classes in the vegetable kingdom.This is thanks to its antioxidant properties but also through its benefits on the human body that these molecules have become the center of interest of many researchers in recent years.They are found in large quantities in citrus species.The aim of this study is展开更多
文摘Peel essential oil of bergamot （Citrus bergamia Risso） growing in Tunisia was separated by hydrodistillation and obtained in a yield of 9.7%. The oil composition was investigated using GC and GC-MS with two columns HP-I and HP-Innowax. Fifteen compounds accounting for 98.52% of the oil were identified. The oil was characterized by bigb content oflimonene （59.21%）, linalool （9.51%） and linalyl acetate （16.83%）.
文摘The bergamot （Citrus bergamia Risso et Poiteau）, a citrus fruit growing almost exclusively in the South Italy, is considered the ＂prince of citrus＂ for its storical role in the perfume industry due to its essential oil, a product in great demand of a pleasant and refreshing scent. Recently, analgesic, anxiolytic, neuroprotective consistent effects have been ascribed to bergamot essential oil when it is used in aromatherapy, for the relief of pain and symptoms associated with stress-induced anxiety and depression. Moreover, today, bergamot fruit due to a considerable abundance and variety of nutraceutical compounds which are present in its juice, is becoming increasingly important also in the food, pharmaceutical and confectionery industries. In this review, it is discussed that the literature on C. bergamia, focusing on the several studies performed with the experimental data, and recently accumulated, may form the rational basis for further development.
基金supported by National Natural Science Foundation of China(Grant no.31972172)Jiangsu Prov-ince Research Fund(Grant no.JNHB-131)the Deanship of Scientific Research(DSR)at King Faisal University under Ambitious Researcher Track(Grant no.GRANT 6214),Saudi Arabia.
文摘Listeria monocytogenes is a prominent cause of foodborne illnesses and public health concerns worldwide.Naturally active compounds have been extensively explored for their potential to reduce foodborne pathogenic contamination.This work is designed to study the chemical composition,antibacterial effect,and inhibition mechanism of Citrus bergamia essential oil(CB-EO)against L.monocytogenes.The CB-EO composition revealed the major components of the total account are D-limonene(23.2%),linalyl acetate(14.01%),and linalool(9.96%).The inhibitory effect was examined at different concentrations of CB-EO,and the MIC value was 1.5 mg/mL against L.monocytogenes.The CB-EO concentration of 1.5 mg/mL significantly disturbed the membrane permeability and fluidity,leading to leakage of intracellular protein and DNA constituents,as revealed by the BCA protein assay and UV-Vis spectrophotometric analysis,respectively.However,a decrease in concentration to 0.75 mg/mL indicated a significant decline in intracellular macromolecule leakage as well as membrane disruption.Moreover,SEM and CLSM observations provided extensive insight into the inhibition mechanism of CB-EO against L.monocytogenes.Finally,while investigating the anti-hemolysis activity,CB-EO and its major compounds,limonene,linalool,and linalyle acetate,have been found to be effective against the virulence agent listeriolysin O(LLO).Thus,it was proposed that CB-EO could act on L.monocytogenes cells through multiple mechanisms of action,with EO concentration providing a crucial role in determining the mode of action.This work offers deep insight into the inhibition mechanisms of natural substances,expanding the potential uses of CB-EO as a natural antimicrobial.
文摘Flavonoids are secondary metabolites from aromatic plants and one of the most present classes in the vegetable kingdom.This is thanks to its antioxidant properties but also through its benefits on the human body that these molecules have become the center of interest of many researchers in recent years.They are found in large quantities in citrus species.The aim of this study is
