Studies of Indigofera tinctoria Linn has shows that it possesses low toxicity. Phytochemical evaluation of leaf extract of Indigofera tinctoria Linn has been carried out to characterize some constituents present therein. Qualitative analysis of the extracts showed the presence of flavonoids, alkaloids, glycosides, terpenoids. Five compounds have been isolated from petroleum ether extract and methanolic extract and have been characterized by U.V.IR and H1 NMR data, petroleum ether extract were also characterized by HPTLC.

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The Aravalli ranges run along the Sabarkantha district is the ancient region of India, inhibited by tribals living in close vicinity of enriched forest. The present paper contains various ethnobotanical aspects of some plant species used by the tribals for their day-to day requirement. The paper includes the first hand information collected through tribal informants, medicinemen and tribal people of several villages during the field trips in the region for last three years in different seasons. The paper provides an account of the ethnobotanical uses for basic necessities and welfare of tribal life, medicine and hygiene, fuel fodder, fibres food, shelter, dye, oil and other miscellaneous purposes.

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Leucas cephalotes a common ethanomedicinal plant, is used by folklore of Tirupati in Andhra Pradesh for fevers and urinary tract infections. In the present study leaves of L. cephalotes were shade dried, powerdered and extracts were made by Soxhlet Extractor using different organic solvents like hexane, dichloromethane, methanol and ethylacetate. The antimicrobial activity of these organic extracts was evaluated against pathogenic organisms of staphylococcus aureus, Escherichia coli, Pseudomonas aeruginosa, Proteus vulgaris and Klebsiella pneumoniae. These isolates were obtained from clinical specimens like urine, blood and pus of Sri Venkateshwara Institute of Medical Sciences, Tirupati. The zone of inhibition was determined for these pathogenic microorganism by using specific standards and respective controls for determining Minimum inhibitory Concentration (MIC). Among these tested organic extracts, hexane and methanolic extracts showed prominent antibacterial activity index for each tested extract has been calculated.

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Antimicrobial activities were detected in the 80% ethanolic extract of Achyranthes aspera, Ficus glomerata, Leucas aspera, Thespesia populnea and Zizyphus jujube against Escherichia coli, Klebsiella pneumoniae and salmonella typhi. The treatments resulted in the formation of various inhibitory zones, in contrast to the control where no inhibitory zone was observed.

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Curcumazedoaria (Berg) Rose. (wild turmeric or kastoorimanjal of commerce rhizome is used as appetizer, tonic, blood purifier and cosmetic. It is useful in flatulence and dyspepsia and also for worms and skin diseases a study on the agrotechniques for its cultivation at the aromatic and Medicinal plants Research Station, Odakkali during 1996-1999 revealed that it is highly adaptable to a wide range of spacings, producing similar yields by adjusting the number of plants/hill. It produces maximum yield of rhizome (34t/ha), essential oil (0.33%) and oleoresin (5.%%) when 1.5 t/ha of seed rhizomes are planted at 60 x40 cm spacing with the receipt of premonsoon showers in May and harvested in January. Application of 20/ha of FYM, 100:50:50 kg N:P:K/ha. Biofertilisers, green manuring and mulching maximize the yields. Combination and interaction effects of the various manorial treatments are to be studied further in detail. The nutrient removal by the crop for the production of rhizomes was 115.96:9. 46:111.23 kg NPK/ha.

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The macroscopic and microscopic characters, physical constant values, extractive values, ash values the behaviour of the powerdered drug on treatment with different chemical reagents, microchemical ad histochemical analyses were conducted to characterize some pharmacognostical parameters of Hemidesmus indicus (Linn) R,Br. (Asclepiadaceae).

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Aegle marmelos Linn is a common plant used to treat many disease Conditions in Indian traditional systems of medicine. The present study was undertaken to findout a scientific validation for the efficacy of Aegle marmelos against gastric ulcer. Aqueous extract of Aegle marmelos leaves was prepared and used for investigation. A daily does of 1 gm/kg body weight of the extract administered orally for 21 days. The volume of the gastricse cretion, ulcer lesion count, pepsin content, PH, total acidity, hexose and hexosamine content were estimated. The result indicated a significant reduction in the ulcer lesion count, volume of gastric juice and acidity and increase in pH and hexosamine after treatment with extract. However the pepsin and hexose content not significantly altered. Histopathological studies were conducted to support the antiulcer study.

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The Ethanolic extract of "Hadrabi" powder was tested for antimicrobial activites against gram positive organisms-Staphylococus aureus, Bacillus subtilis, Clostridium perfringens and gram negative organisms-Pseudomonas aeruginosa, Salmonella paratyphi – B, Escherichia coli & Klebsiella pneumoniae Significant antimicrobial activity of the extract was found in this study at the dose of 1250 mg.

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