Objective:To investigate the acaricidal activity of different extracts from Syzygium cumini(S.cumini)(Pomposia)againsst Tetranyckus urticae Koch(71 urticae)and the biochemical changes in antioxidants enzymes.Methods:S...Objective:To investigate the acaricidal activity of different extracts from Syzygium cumini(S.cumini)(Pomposia)againsst Tetranyckus urticae Koch(71 urticae)and the biochemical changes in antioxidants enzymes.Methods:Six extracts of S.cumini(Pomposia)at concentrations of 75,150 and 300μg/mL were used to control T.urticae(Koch).Results:The ethanol extract showed the most efficient acaricidal activity agent against T.urticae(98.5%)followed by hexane extract(94.0%),ether and ethyl acetate extract(90.0%).The LC_(50)values of the promising extract-were 85.0,101.0,102.0 and 98.0μ/mL,respectively.The activities of enzymes including ascorbate peroxidase(APX),peroxidase(POD),superoxide dismutase(SOD)and catalase(CAT)in susceptible mites were increased.The activities of all antioxidant enzymes reach the maximum value in mites at LC_(50)with ethanol and ethyl acetate extracts,respectively.Conclusions:The extract of S.cumini has acaricidal acivity against T.urticae,and the ethanol extract is the most efficient.展开更多
Syzygium cumini(S.cumini)(L.) Skeels(jambolan) is one of the widely used medicinal plants in the treatment of various diseases in particular diabetes.The present review has been primed to describe the existing data on...Syzygium cumini(S.cumini)(L.) Skeels(jambolan) is one of the widely used medicinal plants in the treatment of various diseases in particular diabetes.The present review has been primed to describe the existing data on the information on botany,phytochemical constituents,traditional uses and pharmacological actions of 5.cumini(L.) Skeels(jambolan).Electronic database search was conducted with the search terms of Eugenia jambolana,S.cumini,jambolan,common plum and java plum.The plant has been viewed as an antidiabetic plant since it became commercially available several decades ago.During last four decades,numerous folk medicine and scientific reports on the antidiabetic effects of this plant have been cited in the literature.The plant is rich in compounds containing anthocyanins,glucoside,ellagic acid,isoquercetin,kaemferol and myrecetin.The seeds are claimed to contain alkaloid,jambosine,and glycoside jambolin or antimellin,which halts the diastalic conversion of starch into sugar.The vast number of literatures found in the database revealed that the extracts of different parts of jambolan showed significant pharmacological actions.We suggest that there is a need for further investigation to isolate active principles which confer the pharmacological action.Hence identification of such active compounds is useful for producing safer drugs in the treatment of various ailments including diabetes.展开更多
Objective: To evaluate the effect of methanolic extract of Syzygium cumini(L.) Skeels(S. cumini) seeds on the major organs in an animal model of diabetes through biochemical and histopathological studies.Methods: The ...Objective: To evaluate the effect of methanolic extract of Syzygium cumini(L.) Skeels(S. cumini) seeds on the major organs in an animal model of diabetes through biochemical and histopathological studies.Methods: The methanolic extracts of S. cumini seeds(100 and 200 mg/kg body weight) were administered to alloxan-induced diabetic rats daily, with fasting blood glucose levels being measured by glucometry at one-day interval for a duration of two weeks. Biochemical assays to evaluate changes in the functions of the heart, liver,pancreas and kidney were carried out. Histopathological changes in the diabetic rat organs(pancreas, liver, heart, kidney and spleen) were also observed after the 14 days of treatment with the extracts.Results: Oral administration of methanolic extracts of S. cumini seeds(100 and 200 mg/kg body weight), with gliclazide as a positive control(25 mg/kg), showed beneficial effects including lowering blood glucose levels(P < 0.001), improved heart and liver functions, and hyperlipidemia due to diabetes. At 200 mg/kg, the extracts reversed cardiac and liver damage caused by alloxan.Conclusions: In addition to the anti-hyperglycemic activity of methanolic extracts of S. cumini seeds, the extracts demonstrates potential to minimize cardiac and hepatic complications.展开更多
Alzheimer’s disease (AD) is the most prominent dementia-related disease and characterized by the presence of insoluble amyloid beta peptide (Aβ) fibers in or around the brain neurons of the affected person. Therefor...Alzheimer’s disease (AD) is the most prominent dementia-related disease and characterized by the presence of insoluble amyloid beta peptide (Aβ) fibers in or around the brain neurons of the affected person. Therefore, agent(s) capable of inhibiting brain amyloid deposition might delay the occurrence or retard the progress forwards of AD and related neurobehavioral symptoms. Here, we report whether, chronic oral administration of Syzygium cumini (locally known as Jam)-seed extract exerts protection against the progressive cognitive decline in the Aβ1-40-infused AD model rats. After 12 weeks of feeding with S. cumini seed extract (at 300 mg/kg BW), we evaluated the learning-related memory of the rats by 8-arm radial maze task, where we determined two types of memory errors, namely reference memory errors (RMEs) and working memory errors (WMEs). After completion of memory tests, rats were sacrificed and the levels of lipid peroxide (LPO), the Aβ1-40-burden, Aβ1-40-oligomers, proinflammatory TNFα, brain derived neurotrophic factor (BDNF), Tyrosine-kinase B (TrkB), postsynaptic-density protein 95 (PSD-95) and Synapse-associated protein (SNAP-25) were determined in the corticohippocampal tissues of the brain. In addition, in vitro antioxidative effects of S. cumini seed extract were evaluated. The oral administration of S. cumini extract significantly increased the memory-related learning ability of the AD model rats, concomitantly with reductions in the levels of corticohippocampal Aβ1-40-burden and Aβ1-40-oligomers. Furthermore, the extract suppressed the levels of TNFα and LPO in the corticohippocampal tissues of the AD rats and also the later in the plasma, suggesting an anti-oxidative and anti-inflammatory activities of the S. cumini extract in the brains of AD model rats. S. cumini extract also increased the levels of brain cognition and memory-related proteins, including BDNF, TrKB, PSD-95 and SNAP-25. We thus suggest that S. cumini-seed extract could be used in neurobehavioral deficits and associated 展开更多
Eugenia jambolana Lam., commonly known as black plum or “jamun” is an important medicinal plant in various traditional systems of medicine. It is effective in the treatment of diabetes mellitus, inflammation, ulcers...Eugenia jambolana Lam., commonly known as black plum or “jamun” is an important medicinal plant in various traditional systems of medicine. It is effective in the treatment of diabetes mellitus, inflammation, ulcers and diarrhea and preclinical studies have also shown it to possess chemopreventive, radioprotective and antineoplastic properties. The plant is rich in compounds containing anthocyanins, glucoside, ellagic acid, isoquercetin, kaemferol and myrecetin. The seeds are claimed to contain alkaloid, jambosine, and glycoside jambolin or antimellin, which halts the diastatic conversion of starch into sugar. The present review has been primed to describe the existing data on the information on traditional and medicinal use.展开更多
In this study,drying characteristics of Syzygium cumini was experimentally investigated under the temperatures of 50°C,60°C and 70°C and the mathematical models were used to fit the drying of Syzygium c...In this study,drying characteristics of Syzygium cumini was experimentally investigated under the temperatures of 50°C,60°C and 70°C and the mathematical models were used to fit the drying of Syzygium cumini.Moisture transfered from Syzygium cumini was described by applying the Fick’s diffusion model and the effective moisture diffusivity was calculated.The temperature dependence of the effective moisture diffusivity for the drying of Syzygium cumini samples was described by an Arrhenius-type relationship with activation energy.Drying data were fitted to seven drying models,namely Lewis,Henderson and Pabis,Logarithmic,Twoterm,Page,Wang and Singh and modified Henderson and Pabis.The Logarithmic model was found as the best fitted model in describing the drying behavior of Syzygium cumini.展开更多
Syzygium cumini(L.)Skeels(Madan)is widely distributed in South Asian countries,including Sri Lanka,where it was naturally found.There were only few studies reported on S.cumini for its values and other benefits in Sri...Syzygium cumini(L.)Skeels(Madan)is widely distributed in South Asian countries,including Sri Lanka,where it was naturally found.There were only few studies reported on S.cumini for its values and other benefits in Sri Lanka.This study focuses on morphological characterization and the diversity of S.cumini trees in seven locations of Sri Lanka.Data were collected on different morphological traits.Leaf,flower and fruit morphology showed significant differences among locations.Further,trees from Batticaloa region showed different morphology,which would potentially open a different avenue for further study to trace different cultivars across the country.Results of the diversity index and multivariate analyses indicated high diversity in morphology and antioxidant capacity of trees.The variables such as leaf area,inter-nodal length,petiole length,anther length,filament length,fruit size and pericarp thickness could be suitable candidates to investigate the morphological variation of S.cumini any further.Antioxidant capacity studies also showed significant differences among locations and trees.Fruit hue angle was positively correlated to antioxidant capacities.Finding of this study concluded that the wide distribution of S.cumini trees throughout Sri Lanka in different geographical locations showed high diversity in leaf,flower and fruit morphology together with antioxidant capacity.展开更多
Objective:To establish the health benefits of Syzgium cumin to discover functional components present in the seeds,fruit pulps and fresh juice of this fruit grown in Bangladesh.Methods:Thin layer chromatography and ul...Objective:To establish the health benefits of Syzgium cumin to discover functional components present in the seeds,fruit pulps and fresh juice of this fruit grown in Bangladesh.Methods:Thin layer chromatography and ultra-violet spectroscopy were used to detect the presence of various types of compound in seeds and juice.Antioxidant effects were measured by DPPH scavenging assay and total reducing assay.Receptor binding activities was performed by hemagglutination inhibition assay.Anti-inflammatory assay and hydrogen peroxide induced hemolysis assay was also investigated.Disc diffusion assay was performed to show the antibacterial effect using Gram positive,Gram negative strains of bacteria and fungi.Results:Methanolic extract of the seeds showed stronger antioxidant,hydrogen peroxide induced hemolysis activities,hemagglutination inhibition activities and membrane stabilization activities than those of fresh juice.However,fresh juice showed stronger antibacterial and antifungal activities than those of methanolic seed extract.The seed contains higher amount of polyphenols and flavanoids than those of fruit juice.Conclusions:Therefore,fruit juice,fruit pulp and seed of Syzygium cumini contain medicinal active components in different ratios.展开更多
This is the first report illustrating the extraction of total phenolic compounds(TPC)using the ultrasound-assisted aqueous extraction(USAE)technique from waste Syzygium cumini leaves(WSCL).A kinetic study indicated th...This is the first report illustrating the extraction of total phenolic compounds(TPC)using the ultrasound-assisted aqueous extraction(USAE)technique from waste Syzygium cumini leaves(WSCL).A kinetic study indicated that Peleg’s model was appropriately fitted to the experimental data when the effect of different parameters was checked on extraction with respect to time.Extraction yields of total phenolic contents(TPC)and total flavonoid contents(TFC)were 78.38 mg GAE/g,and 10.15 mg CE/g,respectively,at optimized parameters of 1:25 WSCL:water,35℃ temperature,134 W power,50%duty cycle and in 9 min of sonication time.Cumulative yields of TPC and TFC obtained by 5 sequential stirred batch extraction were 79.36 mg GAE/g and 10 mg CE/g,respectively.The cost and energy requirement of the USAE process was around 3000 times less than that of the Soxhlet technique.SEM images showed the changes in the morphology of the WSCL surface area before and after ultrasonic extraction.FTIR analysis showed the presence of O-H,N-H,C-H,C=C,and halogenated functional groups.The obtained WSCL extract showed antioxidant potential with an IC_(50) value of 15.64μg/mL.IC_(50) values of extract forα-amylase andα-glucosidase inhibitions were 8.3 and 6.64μg/mL.Antiproliferation activity against breast,cervical,and lung cancer showed the potential with GI50 values 252.8,112.5,and 97.8μg/mL,respectively.Aqueous extract of Syzygium cumini leaves can be used to treat oxidative stress,diabetes,and cancer.展开更多
基金Supported by Scientific Research Sector.Faculty of Agriculture.Cairo University
文摘Objective:To investigate the acaricidal activity of different extracts from Syzygium cumini(S.cumini)(Pomposia)againsst Tetranyckus urticae Koch(71 urticae)and the biochemical changes in antioxidants enzymes.Methods:Six extracts of S.cumini(Pomposia)at concentrations of 75,150 and 300μg/mL were used to control T.urticae(Koch).Results:The ethanol extract showed the most efficient acaricidal activity agent against T.urticae(98.5%)followed by hexane extract(94.0%),ether and ethyl acetate extract(90.0%).The LC_(50)values of the promising extract-were 85.0,101.0,102.0 and 98.0μ/mL,respectively.The activities of enzymes including ascorbate peroxidase(APX),peroxidase(POD),superoxide dismutase(SOD)and catalase(CAT)in susceptible mites were increased.The activities of all antioxidant enzymes reach the maximum value in mites at LC_(50)with ethanol and ethyl acetate extracts,respectively.Conclusions:The extract of S.cumini has acaricidal acivity against T.urticae,and the ethanol extract is the most efficient.
基金fianancially supported by University Grants Commission,New Delhi[grant No.F.4-2/2006(BSR)/13-98/2008(BSR)]
文摘Syzygium cumini(S.cumini)(L.) Skeels(jambolan) is one of the widely used medicinal plants in the treatment of various diseases in particular diabetes.The present review has been primed to describe the existing data on the information on botany,phytochemical constituents,traditional uses and pharmacological actions of 5.cumini(L.) Skeels(jambolan).Electronic database search was conducted with the search terms of Eugenia jambolana,S.cumini,jambolan,common plum and java plum.The plant has been viewed as an antidiabetic plant since it became commercially available several decades ago.During last four decades,numerous folk medicine and scientific reports on the antidiabetic effects of this plant have been cited in the literature.The plant is rich in compounds containing anthocyanins,glucoside,ellagic acid,isoquercetin,kaemferol and myrecetin.The seeds are claimed to contain alkaloid,jambosine,and glycoside jambolin or antimellin,which halts the diastalic conversion of starch into sugar.The vast number of literatures found in the database revealed that the extracts of different parts of jambolan showed significant pharmacological actions.We suggest that there is a need for further investigation to isolate active principles which confer the pharmacological action.Hence identification of such active compounds is useful for producing safer drugs in the treatment of various ailments including diabetes.
文摘Objective: To evaluate the effect of methanolic extract of Syzygium cumini(L.) Skeels(S. cumini) seeds on the major organs in an animal model of diabetes through biochemical and histopathological studies.Methods: The methanolic extracts of S. cumini seeds(100 and 200 mg/kg body weight) were administered to alloxan-induced diabetic rats daily, with fasting blood glucose levels being measured by glucometry at one-day interval for a duration of two weeks. Biochemical assays to evaluate changes in the functions of the heart, liver,pancreas and kidney were carried out. Histopathological changes in the diabetic rat organs(pancreas, liver, heart, kidney and spleen) were also observed after the 14 days of treatment with the extracts.Results: Oral administration of methanolic extracts of S. cumini seeds(100 and 200 mg/kg body weight), with gliclazide as a positive control(25 mg/kg), showed beneficial effects including lowering blood glucose levels(P < 0.001), improved heart and liver functions, and hyperlipidemia due to diabetes. At 200 mg/kg, the extracts reversed cardiac and liver damage caused by alloxan.Conclusions: In addition to the anti-hyperglycemic activity of methanolic extracts of S. cumini seeds, the extracts demonstrates potential to minimize cardiac and hepatic complications.
文摘Alzheimer’s disease (AD) is the most prominent dementia-related disease and characterized by the presence of insoluble amyloid beta peptide (Aβ) fibers in or around the brain neurons of the affected person. Therefore, agent(s) capable of inhibiting brain amyloid deposition might delay the occurrence or retard the progress forwards of AD and related neurobehavioral symptoms. Here, we report whether, chronic oral administration of Syzygium cumini (locally known as Jam)-seed extract exerts protection against the progressive cognitive decline in the Aβ1-40-infused AD model rats. After 12 weeks of feeding with S. cumini seed extract (at 300 mg/kg BW), we evaluated the learning-related memory of the rats by 8-arm radial maze task, where we determined two types of memory errors, namely reference memory errors (RMEs) and working memory errors (WMEs). After completion of memory tests, rats were sacrificed and the levels of lipid peroxide (LPO), the Aβ1-40-burden, Aβ1-40-oligomers, proinflammatory TNFα, brain derived neurotrophic factor (BDNF), Tyrosine-kinase B (TrkB), postsynaptic-density protein 95 (PSD-95) and Synapse-associated protein (SNAP-25) were determined in the corticohippocampal tissues of the brain. In addition, in vitro antioxidative effects of S. cumini seed extract were evaluated. The oral administration of S. cumini extract significantly increased the memory-related learning ability of the AD model rats, concomitantly with reductions in the levels of corticohippocampal Aβ1-40-burden and Aβ1-40-oligomers. Furthermore, the extract suppressed the levels of TNFα and LPO in the corticohippocampal tissues of the AD rats and also the later in the plasma, suggesting an anti-oxidative and anti-inflammatory activities of the S. cumini extract in the brains of AD model rats. S. cumini extract also increased the levels of brain cognition and memory-related proteins, including BDNF, TrKB, PSD-95 and SNAP-25. We thus suggest that S. cumini-seed extract could be used in neurobehavioral deficits and associated
文摘Eugenia jambolana Lam., commonly known as black plum or “jamun” is an important medicinal plant in various traditional systems of medicine. It is effective in the treatment of diabetes mellitus, inflammation, ulcers and diarrhea and preclinical studies have also shown it to possess chemopreventive, radioprotective and antineoplastic properties. The plant is rich in compounds containing anthocyanins, glucoside, ellagic acid, isoquercetin, kaemferol and myrecetin. The seeds are claimed to contain alkaloid, jambosine, and glycoside jambolin or antimellin, which halts the diastatic conversion of starch into sugar. The present review has been primed to describe the existing data on the information on traditional and medicinal use.
文摘In this study,drying characteristics of Syzygium cumini was experimentally investigated under the temperatures of 50°C,60°C and 70°C and the mathematical models were used to fit the drying of Syzygium cumini.Moisture transfered from Syzygium cumini was described by applying the Fick’s diffusion model and the effective moisture diffusivity was calculated.The temperature dependence of the effective moisture diffusivity for the drying of Syzygium cumini samples was described by an Arrhenius-type relationship with activation energy.Drying data were fitted to seven drying models,namely Lewis,Henderson and Pabis,Logarithmic,Twoterm,Page,Wang and Singh and modified Henderson and Pabis.The Logarithmic model was found as the best fitted model in describing the drying behavior of Syzygium cumini.
基金financial support from the Sabaragamuwa University of Sri Lanka under Grant No.SUSL/RG/2016/8。
文摘Syzygium cumini(L.)Skeels(Madan)is widely distributed in South Asian countries,including Sri Lanka,where it was naturally found.There were only few studies reported on S.cumini for its values and other benefits in Sri Lanka.This study focuses on morphological characterization and the diversity of S.cumini trees in seven locations of Sri Lanka.Data were collected on different morphological traits.Leaf,flower and fruit morphology showed significant differences among locations.Further,trees from Batticaloa region showed different morphology,which would potentially open a different avenue for further study to trace different cultivars across the country.Results of the diversity index and multivariate analyses indicated high diversity in morphology and antioxidant capacity of trees.The variables such as leaf area,inter-nodal length,petiole length,anther length,filament length,fruit size and pericarp thickness could be suitable candidates to investigate the morphological variation of S.cumini any further.Antioxidant capacity studies also showed significant differences among locations and trees.Fruit hue angle was positively correlated to antioxidant capacities.Finding of this study concluded that the wide distribution of S.cumini trees throughout Sri Lanka in different geographical locations showed high diversity in leaf,flower and fruit morphology together with antioxidant capacity.
基金Supported by the department of Pharmacy,Fall semester 2011,East West University,Dhaka,Bangladesh.Grant No.:EWU:PHRM:FALL:2011.
文摘Objective:To establish the health benefits of Syzgium cumin to discover functional components present in the seeds,fruit pulps and fresh juice of this fruit grown in Bangladesh.Methods:Thin layer chromatography and ultra-violet spectroscopy were used to detect the presence of various types of compound in seeds and juice.Antioxidant effects were measured by DPPH scavenging assay and total reducing assay.Receptor binding activities was performed by hemagglutination inhibition assay.Anti-inflammatory assay and hydrogen peroxide induced hemolysis assay was also investigated.Disc diffusion assay was performed to show the antibacterial effect using Gram positive,Gram negative strains of bacteria and fungi.Results:Methanolic extract of the seeds showed stronger antioxidant,hydrogen peroxide induced hemolysis activities,hemagglutination inhibition activities and membrane stabilization activities than those of fresh juice.However,fresh juice showed stronger antibacterial and antifungal activities than those of methanolic seed extract.The seed contains higher amount of polyphenols and flavanoids than those of fruit juice.Conclusions:Therefore,fruit juice,fruit pulp and seed of Syzygium cumini contain medicinal active components in different ratios.
基金The authors gratefully acknowledge the University Grants Commission(UGC)India for providing financial assistance in the research work.‘In vitro testing for anticancer activity evaluation of drugs,was done at Anti-Cancer Drug screening facility(ACDSF)at ACTREC,Tata Memorial Centre,Navi Mumbai’.
文摘This is the first report illustrating the extraction of total phenolic compounds(TPC)using the ultrasound-assisted aqueous extraction(USAE)technique from waste Syzygium cumini leaves(WSCL).A kinetic study indicated that Peleg’s model was appropriately fitted to the experimental data when the effect of different parameters was checked on extraction with respect to time.Extraction yields of total phenolic contents(TPC)and total flavonoid contents(TFC)were 78.38 mg GAE/g,and 10.15 mg CE/g,respectively,at optimized parameters of 1:25 WSCL:water,35℃ temperature,134 W power,50%duty cycle and in 9 min of sonication time.Cumulative yields of TPC and TFC obtained by 5 sequential stirred batch extraction were 79.36 mg GAE/g and 10 mg CE/g,respectively.The cost and energy requirement of the USAE process was around 3000 times less than that of the Soxhlet technique.SEM images showed the changes in the morphology of the WSCL surface area before and after ultrasonic extraction.FTIR analysis showed the presence of O-H,N-H,C-H,C=C,and halogenated functional groups.The obtained WSCL extract showed antioxidant potential with an IC_(50) value of 15.64μg/mL.IC_(50) values of extract forα-amylase andα-glucosidase inhibitions were 8.3 and 6.64μg/mL.Antiproliferation activity against breast,cervical,and lung cancer showed the potential with GI50 values 252.8,112.5,and 97.8μg/mL,respectively.Aqueous extract of Syzygium cumini leaves can be used to treat oxidative stress,diabetes,and cancer.
