Bimal Dutta - Academia.edu (original) (raw)
Papers by Bimal Dutta
Journal of Medicinal Plants Studies, 2014
Gomphostemma niveum Hook.f., an ethnomedicinal plant of Assam, India, was screened for secondary ... more Gomphostemma niveum Hook.f., an ethnomedicinal plant of Assam, India, was screened for secondary metabolites such as alkaloids, terpenoids, phenols, flavonoids, tannins and saponins, and total phenol, flavonoid and alkaloid contents were also studied. It was found that the methanol extract of leaves contains all the screened compounds. The total phenol, flavonoid and alkaloid contents were found 75.04 mg/g, 28.23 mg/g and 0.083 mg/g in terms of gallic acid, quercetin and colchicine equivalent respectively. Findings of the study provided evidence that crude extract of the plant species contains medicinally important bioactive compounds and justifies the uses of the plant in the traditional medicine for the treatment of different diseases.
Journal of Medicinal Plants Studies, 2017
Searching of nutraceutical properties of fruits has in recent years received much attention in di... more Searching of nutraceutical properties of fruits has in recent years received much attention in different parts of the world owing to its relevance in discovery of health beneficial foods. Flacourtia jangomas, a semi-cultivated fruit plant, having some medicinal as well as economic value, is found frequently in the Brahmaputra valley of Assam and adjoining areas in the northeastern parts of India. The present study has been carried out to make a survey for bioactive compounds, like, alkaloids, flavonoids, phenols, terpenoids, tannins and saponins, and to determine the total phenol and flavonoid contents in the ripe fruits of F. jangomas. It has found that the methanol extract of the fruits contains most of the searching bioactive compounds and the total phenol and flavonoid contents are 20 mg/g and 2mg/g respectively. Findings of the study have provided the evidences that the fruits of F. jangomas have the nutraceutical potency.
Curcuma is a rhizomatous perennial plant which belongs to family Zingiberaceae having various eth... more Curcuma is a rhizomatous perennial plant which belongs to family Zingiberaceae having various ethnomedicinal significance. In this study, six different species of genus Curcuma i.e., C. amada, C. caesia, C. angustifolia, C. leucorrhiza, C. longa and C. zedoaria were screened for the presence of major secondary metabolites and curcumin contents were also analyzed. The dried and powdered rhizomes of each species were extracted with ethanol using Soxhlet extraction method. Phytochemical screening of ethanolic extracts of each species was performed qualitatively. Phytochemical screening of the ethanolic extract of six species showed the presence of phenols, flavonoids, alkaloids, terpenoids, tannins and saponins. Further, the curcumin contents of the ethanolic extracts of C. longa, C. zedoaria, C. angustifolia, C. leucorrhiza, C. amada and C. caesia were 125mg/100g, 88mg/100g, 71mg/100g, 15mg/100g, 11mg/100g and 8mg/100g of extract powder respectively.
Journal of Medicinal Plants Studies, 2016
Eupatorium cannabinum L., an ethnobotanical plant of Deories of Assam, India, was screened for se... more Eupatorium cannabinum L., an ethnobotanical plant of Deories of Assam, India, was screened for secondary metabolites such as alkaloids, terpenoids, phenols, flavonoids, tannins and saponins, and total phenol and flavonoid contents were also studied. It was found that the methanol extract of leaves contains all the screened compounds. The total phenol and flavonoid contents were found 64.82 mg/g and 25.05 mg/g in terms of gallic acid and quercetin equivalent respectively. Findings of the study provided evidence that crude extract of the plant species contains medicinally important bioactive compounds and justifies the uses of the plant in the traditional medicine for the treatment of different
Fruits contain various biologically active compounds and vitamins that can promote certain synerg... more Fruits contain various biologically active compounds and vitamins that can promote certain synergistic and health-related activities which signify the phrase that "fruit juices are the pure gifts from mother nature". Ascorbic acid (Vitamin C) cannot be synthesized by humans directly hence needs to be supplemented with the diet of their natural form. Besides the biologically active compounds such as phenols and flavonoids which is the natural source of antioxidants, ascorbic acid plays a vital role in various beneficial activities. The present studies were conducted to estimate the phenol and flavonoid, and ascorbic acid contents in fruits like Spondias pinnata (L.F.) Kurz., Psidium guajava L., Syzynium cumini (L.) Skeels., Syzynium jambos((L.) Alston., Prunus persica (L.) Stokes and Pyrus communis L. were estimated by the spectrophotometric method. The vitamin C, total phenol and flavonoid contents were determined by the standard protocol. The vitamin C estimation was found highest in P. guajava (0.300±0.030) followed by S. cumini (0.280±0.039) and S. jambos (0.027±0.021). The phenol content was found significantly highest in S. cumini (0.153±0.013) followed by S. jambos (0.127±0.018) and P. guajava (0.123±0.018). Also the flavonoid content was observed highest in P. guajava (0.587±0.067), S. jambos (0.245±0.074) and S. cumini (0.192±0.056). The results of the present investigation were analyzed statistically by using ANOVA single factor analysis and the p value was found less than the significant level (p < 0.05). The data so obtained reflects that the fleshy fruits are an important source of phytochemicals with potent antioxidant activity.
Journal of Medicinal Plants Studies, 2014
Gomphostemma niveum Hook.f., an ethnomedicinal plant of Assam, India, was screened for secondary ... more Gomphostemma niveum Hook.f., an ethnomedicinal plant of Assam, India, was screened for secondary metabolites such as alkaloids, terpenoids, phenols, flavonoids, tannins and saponins, and total phenol, flavonoid and alkaloid contents were also studied. It was found that the methanol extract of leaves contains all the screened compounds. The total phenol, flavonoid and alkaloid contents were found 75.04 mg/g, 28.23 mg/g and 0.083 mg/g in terms of gallic acid, quercetin and colchicine equivalent respectively. Findings of the study provided evidence that crude extract of the plant species contains medicinally important bioactive compounds and justifies the uses of the plant in the traditional medicine for the treatment of different diseases.
Journal of Medicinal Plants Studies, 2017
Searching of nutraceutical properties of fruits has in recent years received much attention in di... more Searching of nutraceutical properties of fruits has in recent years received much attention in different parts of the world owing to its relevance in discovery of health beneficial foods. Flacourtia jangomas, a semi-cultivated fruit plant, having some medicinal as well as economic value, is found frequently in the Brahmaputra valley of Assam and adjoining areas in the northeastern parts of India. The present study has been carried out to make a survey for bioactive compounds, like, alkaloids, flavonoids, phenols, terpenoids, tannins and saponins, and to determine the total phenol and flavonoid contents in the ripe fruits of F. jangomas. It has found that the methanol extract of the fruits contains most of the searching bioactive compounds and the total phenol and flavonoid contents are 20 mg/g and 2mg/g respectively. Findings of the study have provided the evidences that the fruits of F. jangomas have the nutraceutical potency.
Curcuma is a rhizomatous perennial plant which belongs to family Zingiberaceae having various eth... more Curcuma is a rhizomatous perennial plant which belongs to family Zingiberaceae having various ethnomedicinal significance. In this study, six different species of genus Curcuma i.e., C. amada, C. caesia, C. angustifolia, C. leucorrhiza, C. longa and C. zedoaria were screened for the presence of major secondary metabolites and curcumin contents were also analyzed. The dried and powdered rhizomes of each species were extracted with ethanol using Soxhlet extraction method. Phytochemical screening of ethanolic extracts of each species was performed qualitatively. Phytochemical screening of the ethanolic extract of six species showed the presence of phenols, flavonoids, alkaloids, terpenoids, tannins and saponins. Further, the curcumin contents of the ethanolic extracts of C. longa, C. zedoaria, C. angustifolia, C. leucorrhiza, C. amada and C. caesia were 125mg/100g, 88mg/100g, 71mg/100g, 15mg/100g, 11mg/100g and 8mg/100g of extract powder respectively.
Journal of Medicinal Plants Studies, 2016
Eupatorium cannabinum L., an ethnobotanical plant of Deories of Assam, India, was screened for se... more Eupatorium cannabinum L., an ethnobotanical plant of Deories of Assam, India, was screened for secondary metabolites such as alkaloids, terpenoids, phenols, flavonoids, tannins and saponins, and total phenol and flavonoid contents were also studied. It was found that the methanol extract of leaves contains all the screened compounds. The total phenol and flavonoid contents were found 64.82 mg/g and 25.05 mg/g in terms of gallic acid and quercetin equivalent respectively. Findings of the study provided evidence that crude extract of the plant species contains medicinally important bioactive compounds and justifies the uses of the plant in the traditional medicine for the treatment of different
Fruits contain various biologically active compounds and vitamins that can promote certain synerg... more Fruits contain various biologically active compounds and vitamins that can promote certain synergistic and health-related activities which signify the phrase that "fruit juices are the pure gifts from mother nature". Ascorbic acid (Vitamin C) cannot be synthesized by humans directly hence needs to be supplemented with the diet of their natural form. Besides the biologically active compounds such as phenols and flavonoids which is the natural source of antioxidants, ascorbic acid plays a vital role in various beneficial activities. The present studies were conducted to estimate the phenol and flavonoid, and ascorbic acid contents in fruits like Spondias pinnata (L.F.) Kurz., Psidium guajava L., Syzynium cumini (L.) Skeels., Syzynium jambos((L.) Alston., Prunus persica (L.) Stokes and Pyrus communis L. were estimated by the spectrophotometric method. The vitamin C, total phenol and flavonoid contents were determined by the standard protocol. The vitamin C estimation was found highest in P. guajava (0.300±0.030) followed by S. cumini (0.280±0.039) and S. jambos (0.027±0.021). The phenol content was found significantly highest in S. cumini (0.153±0.013) followed by S. jambos (0.127±0.018) and P. guajava (0.123±0.018). Also the flavonoid content was observed highest in P. guajava (0.587±0.067), S. jambos (0.245±0.074) and S. cumini (0.192±0.056). The results of the present investigation were analyzed statistically by using ANOVA single factor analysis and the p value was found less than the significant level (p < 0.05). The data so obtained reflects that the fleshy fruits are an important source of phytochemicals with potent antioxidant activity.