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Jayanta Mondal,Sujit Mandal 대한공간정보학회 2018 Spatial Information Research Vol.26 No.6
Dynamicity of the river Ganga introduces significant changes in the land-use character of active alluvial plain of West Bengal, India. The dynamicity of the river Ganga is caused due to continuous sedimentation and formation of char land which frequently changes the flow direction and flow velocity of running water as well as causes the shifting of the bank line due to active bank erosion processes in the upstream of Farakka Barrage. Bank line shifting was estimated with the help of 25 transects since 1973–2011. A large-scale land erosion (38.6 sq. km area) occurred due to the bank line shifting which observed in Godai, Kesharpur, Rambari, Hiranandapur, Mathurapur, Manikchak, Samastipur, Dakshin Chandipur, and Gopalpur mouzas of Manikchak block, whereas deposition (2.4 sq. km area) was found in Chandipur Tofi Narayanpur and Govindapur mouzas. Such erosion and deposition invited a lot of changes in land-use statistics. Land-use–land-cover maps were prepared using supervised image classification techniques and validated through kappa statistics (kappa coefficient 0.803 and 0.892 for the year 1994 and 2016, respectively). Land-use change detection technique was used to identify the transformation of land-use character from one feature to another. This study revealed that a notable area of settlement (5.07 sq. km) and vegetation cover (6.84 sq. km) was converted into water body as a result of bank erosion. Loss of agricultural land and homestead led to the loss of livelihood and introduced internal migration. The observed pattern of river dynamics and the consequent land-use change in the recent decades have shown newer environmental challenges to the coping capabilities of the rural inhabitants.
Antioxidant and free radical scavenging activities of Cleome rutidosperma
Bose, Anindya,Mondal, Sumanta,Gupta, Jayanta Kumar,Ghosh, Tirtha,Debbhuti, Debabrata,Si, Sudam Kyung Hee Oriental Medicine Research Center 2008 Oriental pharmacy and experimental medicine Vol.8 No.2
The study was aimed at evaluating the antioxidant and free radical scavenging activities of ethanolic extract and its fractions of Cleome rutidosperma. The antioxidant activity, reducing power, total phenolic content, total flavonoid content, superoxide anion scavenging activity, nitric oxide anion scavenging activity, in vitro antilipid peroxidation activity and in vitro non-enzymatic hemoglobin glycosylation were studied. The results obtained in the study indicate that Cleome rutidosperma is a potential source of natural antioxidant. All the parameters were found to be concentration dependent and increased with increasing amounts of sample. Flavonoids, phenolic compound like tannins, terpenoids may be responsible for the antioxidant activity of the plant. Variation of solubility parameters in various models may be attributed to non-linearity of activity of ethanol extract fractions models. Further investigation on the isolation and identification of antioxidant component(s) in the plant may lead to chemical entities with potential for clinical use.
Antioxidant and free radical scavenging activities of Cleome rutidosperma
Anindya Bose,Sumanta Mondal,Jayanta Kumar Gupta,Tirtha Ghosh,Debabrata Debbhuti,Sudam Si 경희대학교 융합한의과학연구소 2008 Oriental Pharmacy and Experimental Medicine Vol.8 No.2
The study was aimed at evaluating the antioxidant and free radical scavenging activities of ethanolic extract and its fractions of Cleome rutidosperma. The antioxidant activity, reducing power, total phenolic content, total flavonoid content, superoxide anion scavenging activity, nitric oxide anion scavenging activity, in vitro antilipid peroxidation activity and in vitro nonenzymatic hemoglobin glycosylation were studied. The results obtained in the study indicate that Cleome rutidosperma is a potential source of natural antioxidant. All the parameters were found to be concentration dependent and increased with increasing amounts of sample. Flavonoids, phenolic compound like tannins, terpenoids may be responsible for the antioxidant activity of the plant. Variation of solubility parameters in various models may be attributed to non-linearity of activity of ethanol extract fractions models. Further investigation on the isolation and identification of antioxidant component(s) in the plant may lead to chemical entities with potential for clinical use. The study was aimed at evaluating the antioxidant and free radical scavenging activities of ethanolic extract and its fractions of Cleome rutidosperma. The antioxidant activity, reducing power, total phenolic content, total flavonoid content, superoxide anion scavenging activity, nitric oxide anion scavenging activity, in vitro antilipid peroxidation activity and in vitro nonenzymatic hemoglobin glycosylation were studied. The results obtained in the study indicate that Cleome rutidosperma is a potential source of natural antioxidant. All the parameters were found to be concentration dependent and increased with increasing amounts of sample. Flavonoids, phenolic compound like tannins, terpenoids may be responsible for the antioxidant activity of the plant. Variation of solubility parameters in various models may be attributed to non-linearity of activity of ethanol extract fractions models. Further investigation on the isolation and identification of antioxidant component(s) in the plant may lead to chemical entities with potential for clinical use.