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您的检索式：作者名="Subhashree Singh"
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| 1 | Separation of hematite from banded hematite jasper(BHJ) by magnetic coating显示文摘The separation of iron oxide from banded hematite jasper(BHJ) assaying 47.8% Fe, 25.6% Si O2 and 2.30%Al2O3 using selective magnetic coating was studied. Characterization studies of the low grade ore indicate that besides hematite and goethite,jasper, a microcrystalline form of quartzite, is the major impurity associated with this ore. Beneficiation by conventional magnetic separation technique could yield a magnetic concentrate containing 60.8% Fe with 51% Fe recovery. In order to enhance the recovery of the iron oxide minerals, fine magnetite, colloidal magnetite and oleate colloidal magnetite were used as the coating material. When subjected to magnetic separation, the coated ore produces an iron concentrate containing 60.2% Fe with an enhanced recovery of56%. The AFM studies indicate that the coagulation of hematite particles with the oleate colloidal magnetite facilitates the higher recovery of iron particles from the low grade BHJ iron ore under appropriate conditions. | Subhashree Singh H.Sahoo S.S.Rath B.B.Palei B.Das | 2015 | Journal of Central South University2015，22，2： | 3 |
| 2 | Curcuma angustifolia ameliorates carbon tetrachloride-induced hepatotoxicity in HepG2 cells and Swiss albino rats显示文摘Objective:To determine the antioxidant and hepatoprotective potential of methanol extract of rhizome of Curcuma angustifolia(MECA)against carbon tetrachloride(CCl4)-induced hepatic damage in vitro and in vivo.Methods:DPPH,ABTS and reducing power assays were performed to estimate the antioxidant effect of MECA.In vitro cytotoxicity of MECA against HepG2 cells was evaluated,whereas serum biochemical parameters and levels of antioxidative enzymes were measured in vivo and in vitro.Additionally,histopathological studies were estimated in order to investigate the hepatoprotective efficacy of MECA.Furthermore,GC-MS analysis of the extract was performed to identify the chemical components.Results:MECA exhibited strong antioxidant activity and attenuated CCl4-induced decrease in the viability of HepG2 cells.Additionally,MECA significantly restored the ALT,AST,ALP,TP and albumin level in comparison with the CCl4 group.After pre-treatment with MECA,effects of SOD,CAT and GSH were increased as well as lipid peroxidation amount decreased on CCl4-induced hepatotoxicity in in vitro and in vivo model.Furthermore,histopathological observation confirmed that MECA reduced liver injury induced by CCl4 in rats.GC-MS analysis confirmed the presence of bioactive constituents such as α-tocopherol(12.27%),phytol(7.61%),squalene(3.71%),β-sitosterol(2.19%),eugenol(2.59%),curcumenol(1.20%),β-elemene(1.00%)and eucalyptol(0.89%).Conclusions:MECA contains antioxidant and hepatoprotective constituents such asα-tocopherol,phytol,squalene and eugenol and exerts hepatoprotective effect both in vitro and in vivo. | Sudipta Jena Asit Ray Diptirani Rath Ambika Sahoo Subhashree Singh Noohi Nasim Durga Madhab Kar Sanghamitra Nayak | 2019 | Asian Pacific Journal of Tropical Medicine2019，12，9： | 2 |
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