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Articles by M. Saiful Islam
Total Records ( 4 ) for M. Saiful Islam
  M. Saiful Islam , M. Badrul Alam , Ronok Zahan , G.C. Sarker , N.S. Chowdhury , M. Maruf Khan , Mahedi Hasan , M. Saifur Rahman , M.A. Mosaddik , Mele Jesmin and M. Ekramul Haque
  The present study was designed to investigate the antioxidant and anti neoplastic activities of Ocimum sanctum Linn. (OS) leaves. Antioxidant potential of the OS extract was evaluated in vitro by DPPH (1, 1diphenyl-2-picrylhydrazyl) and NO (Nitric Oxide) scavenging assay and reducing power assay method. OS extract showed prominent scavenging activity in all the methods with IC50 value of 16.39±0.31 and 16.20±0.33 μg mL-1 for DPPH and NO assay method, respectively. In reducing power assay, OS extract also showed significant (p<0.001) activity. In addition, total phenolic and flavonoid content and total antioxidant capacity were also determined. The anti neoplastic effect of the leaves of OS against Ehrlich Ascites Carcinoma (EAC) in mice at the doses of 50 mg kg-1 body weight intraperitoneally. Significant (p<0.001) increases of survival times 33±1.81 days for crude extract of the (50 mg kg-1) treated tumor bearing mice were confirmed with respect to the control group (20±0.12 days). Hematological studies reveal that the Heamoglobin (Hb) content was decreased in EAC treated mice whereas restoration to near normal levels was observed in extract treated animals. There was a significant (p<0.001) decrease in RBC count and increase in WBC counts in extract/fraction treated animals when compared to EAC treated animals. From the result it was showed that the extract has significant antioxidant as well as anti neoplastic activity.
  Ronok Zahan , M. Badrul Alam , M. Saiful Islam , Gopal C. Sarker , Nargis S. Chowdhury , Salman B. Hosain , M.A. Mosaddik , Mele Jesmin and M. Ekramul Haque
  The research study was conducted to determine the antitumor effect of the flower of Alangium salvifolium (crude extract and diethylether fractions) against Ehrlich Ascites Carcinoma (EAC) in mice at the doses of 10 mg kg-1 body weight intraperitoneally. Extract/fractions was administered for nine consecutive days. Twenty-four hours of last dose and 18 h of fasting, the mice were sacrificed and antitumor effect was assessed by evaluating tumor volume, viable and nonviable tumor cell count, tumor weight and hematological parameters of EAC bearing host. Significant (p<0.001) increases of survival times 30±0.96 and 25±0.40 days for crude extract and diethylether fraction of the A. salvifolium (10 mg kg-1) treated tumor bearing mice, respectively were confirmed with respect to the control group (20±0.13 days). The extract/fraction also decreased the body weight of the EAC tumor bearing mice. Hematological studies reveal that the heamoglobin (Hb) content was decreased in EAC treated mice whereas restoration to near normal levels was observed in extract treated animals. There was a significant (p<0.001) decrease in RBC count and increase in WBC counts in extract/fraction treated animals when compared to EAC treated animals. From the result it was showed that the extract has significant anticancer activity and that is comparable to that of Bleomycin.
  M.A. Halim , S.A.M. Waliul Hoque , M.K. Hossain , A.H.M. Saadat , M.A. Goni and M. Saiful Islam
  Laterite soil samples were studied to monitor their efficiency in removing arsenic from contaminated water by adsorption filtration method in laboratory condition. Prepared 10 mg L-1 solution of As3+/As5+ was passed through the six soil samples. At room temperature, a batch of three different samples adsorbs 1010, 925 and 932.5 mg kg-1 of arsenic and their removal efficiency were found to be 58.74, 65.32 and 65.39%, respectively. At 100 °C temperature, the three specimens studied show the adsorptivity of 54.40, 63.47 and 58.69%, while the respective amount adsorbed was calculated 848, 694 and 760 mg kg-1, respectively. Studied IR spectra of the sample of different temperature gradients revealed that the efficiency of a particular composite is high temperature sensitive and the most important and noticeable performance of soil samples is observed when the samples are treated at room temperature, this is the optimum temperature for these soil samples. Above this temperature the efficiency decline gradually.
  M. Saiful Islam , M. Tamzid Hossain Molla , M.T. Alam and M. Rowshanul Habib
  The fish lipid was extracted from the body muscle (edible portion) of fresh Lepidocephalus guntea (Ham.) fish and the lipid content of the fish in size-1 (below 8.5 cm), size-2 (8.5-9.5 cm) and size-3 (above 9.5 cm) were found to be 2.515, 3.013 and 3.455%, respectively. The specific gravity and refractive index of the lipid were found to be 0.93 at 30 ° C and 1.467 at 31.5 ° C, respectively. The saponification value, saponification equivalent, iodine value, peroxide value and acetyl value of the lipid were found to be 220.325, 254.624, 96.05, 1.993 and 11.32, respectively. The acid value, percentage of free fatty acid as oleic and unsaponifiable matter present in the lipid were found to be 2.005, 1.008 and 0.593, respectively. The fatty acid composition of the lipid was determined qualitatively and quantitatively by TLC and GLC. The analysis revealed that the fatty acid composition of the lipid lies between C14 to C20. The fish lipid of Lepidocephalus guntea (Ham.) was found to contain (average value) myristic acid (3.17%), palmitoleic acid (7.45%), palmitic acid (29.16%), linolenic acid (7.13%), linoleic acid (5.57%), oleic acid (22.93%), stearic acid (17.42%), arachidonic acid (7.17%) and arachidic acid in trace amount.
 
 
 
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