All the extracts were undergone for chemical reactions for the presence of compounds. The chloroform and methanolic this website extracts of S. swietenoides were mixed as they showed similar spots on thin layer chromatography (Chloroform:Benzene : 8:2). The combined extracts were column chromatographed over silica gel (Acme, 100–200 mesh) and the compounds thus obtained were characterized by spectral analysis (IR, 1 H NMR and Mass). The experimental protocol was approved by the institutional animal ethics committee of Andhra university, Vishakhapatnam, which was registered with Committee for the purpose of control and supervision of experiments on animal (CPCSEA),
Govt. of India (registration no.516/01/A/CPCSEA). In this experiment Wistar albino rats
of either sex (150–200 g) were maintained under controlled conditions for all sets of experiments. The rats were allowed to take standard laboratory feed and water ad libitum. Toxicity studies were conducted as per internationally accepted protocol drawn under OECD guidelines in Wistar albino rats at a dose learn more level of extracts up to 2000 mg/kg b.w. The toxic effect of the methanolic extract of S. swietenoides (roots) was studied at a dose level of 2000 mg/kg b.w. The animals were also closely examined for signs of intoxication, lethargy, behavioral modification and morbidity. 7 and 8 Each set of experiment was divided into groups consisting of 6 rats in each group towards control, toxicant, standard, and test. The methanolic extract obtained from the roots of S. swietenoides were suspended in 1% Sodium CMC and administered at a dose levels of 200, 400 and 800 mg/kg. The rats of control group I received three
doses of 1% Sodium CMC (1 mL/kg p.o.). The animals in group II were given with CCl4 at a dose of 1.25 mL/kg. The group III received the first dose of silymarin (25 mg/kg) at 0 h. Groups IV, V and VI received different doses of extracts viz 200,400 and 800 mg/kg. After 72 h blood was drawn from the retero-orbital plexus venous and allowed to clot for the separation of serum. The Histamine H2 receptor serum was used for the assay of the marker enzymes SGOT, SGPT and ALKP. TBL, CHL, TPTN and ALB parameters were also estimated. 9, 10, 11, 12, 13 and 14 The values were expressed as mean ± SEM. The data was subjected to the analysis of variance (one way ANOVA) to determine the significance of changes followed by students “t”-test.15, 16 and 17 Bacillus subtilis, Bacillus cereus, Bacillus pumilus and Staphylococcus aureus (Gram + ve organisms). Escherichia coli, Pseudomonas aeruginosa, Pseudomonas vulgaris and Serratia marcescens (Gram–ve organisms). Aspergillus niger, Rhizopus stolonifer, Saccharomyces cerevisiae and Penicillium chrysogenum.