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Madhavi, T.
- A Phytochemical Review on Tribulus terrestris Linn
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Authors
Affiliations
1 Department of Pharmacognosy, Nargund College of Pharmacy, Dattatreyanagar, 2nd Main, 100 ft Ring Road, BSK III Stage, Bangalore-560085, IN
2 East Point College of Pharmacy, Bangalore-560049, IN
3 Oxford College of Pharmacy, Bangalore-560072, IN
4 Dayananda Sagar College of Pharmacy, Bangalore-560078, IN
5 Nargund college of Pharmacy, Bangalore-560085, IN
1 Department of Pharmacognosy, Nargund College of Pharmacy, Dattatreyanagar, 2nd Main, 100 ft Ring Road, BSK III Stage, Bangalore-560085, IN
2 East Point College of Pharmacy, Bangalore-560049, IN
3 Oxford College of Pharmacy, Bangalore-560072, IN
4 Dayananda Sagar College of Pharmacy, Bangalore-560078, IN
5 Nargund college of Pharmacy, Bangalore-560085, IN
Source
Research Journal of Pharmacology and Pharmacodynamics, Vol 3, No 5 (2011), Pagination: 218-222Abstract
Tribulus terrestris (Linn) is an herb distributed through India and popularly known as Gokhru belonging to the family Zygophyllaceae. The entire plant but more particularly the fruits are used in medicine. In china, Tribulus terrestris (Linn) is used in number of conditions affecting the liver and kidney as well as the cardiovascular and immune system. It is known in ayurveda for its anti-urolithiatic, diuretic and aphrodisiac properties. Leaves are diuretic, tonic, increase the menstrual flow, and cure gonorrhea. The fruit is diuretic removes gravel from the urine and stones in the bladder. The ischolar_main is good stomachic and appetizers. Various steroidal saponins, alkaloids, furostanal glycosides, flavanoids have been reported. Thus extensive works on the phytochemical investigations have been done to show importance of Tribulus terrestris (Linn).
References
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- Light Hydrocarbons Geochemistry of Surface Sediment from Petroliferous Region of the Mehsana Block, North Cambay Basin
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Authors
Affiliations
1 Stable Isotope and Surface Geochemical prospecting of Hydrocarbon, National Geophysical Research Institute (Council of Scientific and Industrial Research), Hyderabad - 500 606, IN
2 Stable Isotope and Surface Geochemical Prospecting of Hydrocarbon, National Geophysical Research Institute (Council of Scientific and Industrial Research), Hyderabad - 500 606, IN
1 Stable Isotope and Surface Geochemical prospecting of Hydrocarbon, National Geophysical Research Institute (Council of Scientific and Industrial Research), Hyderabad - 500 606, IN
2 Stable Isotope and Surface Geochemical Prospecting of Hydrocarbon, National Geophysical Research Institute (Council of Scientific and Industrial Research), Hyderabad - 500 606, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 74, No 1 (2009), Pagination: 7-15Abstract
A study was carried out to test the usefulness of surface geochemical methods as regional evaluation tools in petroliferous region of the Mehsana block, North Cambay Basin. A suite of 135 soil samples collected from the depth of 2.5 m, were analyzed for adsorbed light gaseous hydrocarbons and carbon isotopes (δ13Cmethane and δ13Cethane). The light gaseous hydrocarbon analysis show that the concentration ranges 402 ppb, 135 ppb, 70 ppb, 9 ppb and 18 ppb of C1, C2, C3, iC4 and nC4, respectively. The value of carbon isotopic ranges of methane -29.5 to -43.0‰ (PDB) and ethane -19.1 to -20.9‰ (PDB). This data, when mapped, indicates patterns coinciding with major known oil and/or gas field of Sobhasan/Linch in this study area. The existence of un-altered petroliferous microseeps of catagenetic origin is observed in the study area. A regional study, such as the one described here, can provide important exploration facts concerning the regional hydrocarbon potential in a block. This method has been confirmed and can be applied successfully in frontier basins.Keywords
Adsorbed Soil Gas, Light Hydrocarbons, Microseeps, Carbon Isotope, Mehsane Block.References
- BANERJEE, A., JHA, M., MITTAL, A.K, THOMAS, N.J., and MISRA, K.N. (2000) The effective source rocks in the Cambay Basin, India. Mar. Petro. Geol., v.17, pp.1111-1129.
- BANERJEE, A. and RAO, K.L.N. (1993) Geochemical evaluation of part of the Cambay Basin, India. Amer. Assoc. Petrol. Geol. Bull., v.77, no.1, pp.29-48.
- BERNARD, B.B. (1978) Light hydrocarbons in Sediments - PhD dissertation, Texas A&M University, USA, pp.144.
- BERNARD, B.B., BROOKS, J.M. and SACKETT, W.M. (1978) Light hydrocarbons in recent Texas continental shelf and slope sediments. Jour. Geophy. Res., v.83, pp.4053-4061.
- BHANDARI, L.L. and CHOUDHARY, L.R. (1975) Stratigraphic Analysis of Kadi and Kalol Formations, Cambay Basin, India. Amer. Assoc. Petrol. Geol. Bull., v.59, pp.856-871.
- BISWAS, S.K. (1982) Rift basins in western margin of India and their hydrocarbon prospects with special reference to Kutch basin. Amer. Assoc. Petrol. Geol. Bull., v.66, pp. 1497-1513.
- BISWAS, S.K. (1987) Regional tectonic framework, structure, and evolution of the western margin basins of India. Tectonophysics, v.137, pp.307-327.
- BISWAS, S.K., RANGARAJU, M.K., THOMAS, J. and BHATTACHARYA, S.K. (1994) Cambay - Hazad Petroleum System in South Cambay Basin, India. In: L.B. Magoon and W.G. Dow (Eds.), Petroleum System from Source to trap. Amer. Assoc. Petrol. Geol., v.60, pp.615-624.
- CHANDRA, K., MISRA, K.N. and MAKAR, P.S. (1984) Isobutane / normal butane ethane reaming heavier hydrocarbons relationship in natural of sedimentary basins. Amer. Assoc. Petrol. Geol., Research Conf. on Geochemistry of natural gases, San Antanio, USA (Abstr).
- CHANDRA, K., MISHRA, C.S., SAMANTA, U., ANITA GUPTA and MEHROTRA, K.L. (1994) Correlation of different maturity parameters in the Ahmedabad - Mehsana block of the Cambay basin. Org. Geochem, v.20, no.3/4, pp.313-321.
- DEINES, P. (1980) The isotopic composition of reduced organic carbon. In: P. Fritz, and J.Fontes (Eds.), Handbook of environmental isotope geochemistry, v.1, Elsevier, Amsterdam, pp.329-406.
- FABER, E. and STAHL, W. (1983) Analytical procedure and results of and isotope surface survey in an area of the British North Sea. In: J. Brooks (Ed.), Petroleum Geochemistry and Exploration of Europe. Geol. Soc. Spec. Publ., no.12, pp.51-63.
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- GEVIRTZ, J.L., CAREY, B.D. and BLANCO, S.R. (1983) Surface geochemical exploration in the North Sea. Methodology with an example. In: J. Brooks (Ed.), Petroleum Geochemistry and Exploration of Europe. Geol. Soc. Spec. Publ., no.12, pp.35- 50.
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- JONES, V.T. and DROZD, R.J. (1983) Predictions of oil and gas potential by near-surface geochemistry. Amer. Assoc. Petrol. Geol. Bull., v.67, pp.932-952.
- KUNDU, J., PRASAD, B. and ANAND PRAKASH. (1997) Structural Framework and Distribution of Synrift Depocentres in Cambay Rift Basin, Western India, Amer. Assoc. Petrol. Geol. Bull., v.81,pp.1392-1393.
- KVENVOLDEN, D.A., VOGEL, T.M. and GARDNER, J.V. (1981) Geochemical prospecting for hydrocarbons in the outer continental shelf, South Bering Sea, Alaska. Jour. Geochem. Explor., v.14, pp.209-219.
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- MEHROTRA, K.L., GUPTA, A., TIWARI, G. and KUMAR, A. (1991) Geochemistry of Cambay Basin. In: Integrated Exploration Research - Status and perspective 1990, pp.429-436.
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- Effect of Fragment SIZE and Contention Window on the Performance of IEEE 802.11 WLANs
Abstract Views :169 |
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Authors
Affiliations
1 Department of ECE, GITAM Institute of Technology, GITAM University, Visakhapatnam, A.P., IN
1 Department of ECE, GITAM Institute of Technology, GITAM University, Visakhapatnam, A.P., IN
Source
Wireless Communication, Vol 4, No 9 (2012), Pagination: 467-471Abstract
Wireless communications is, by any measure, the fastest growing segment of the communications industry. The IEEE has standardized the 802.11 protocol for Wireless Local Area Networks. The IEEE 802.11 standard has defined two different access mechanisms in order to allow multiple users to access a common channel, the Distributed Coordination Function (DCF) and a centrally controlled access mechanism called the Point Coordination Function (PCF). DCF is a Carrier Sense Multiple Access with Collision Avoidance (CSMA/CA) scheme with Binary Exponential Backoff algorithm (BEB). DCF describes two techniques to employ for packet transmission: the two-way handshaking technique called basic access mechanism and an optional four way handshakin technique, known as request-to send/clear-to-send (RTS/CTS) mechanism. In noisy channel, data packets become erroneous, and retransmission reduces the throughput. IEEE 802.11 allows fo fragmentation tuning and rate selection to achieve highest throughput in bad channel conditions. If an error rate is known, the parameters like fragment size and contention window can be adjusted to obtain the maximum throughput. In this paper, an analytic model is developed to evaluate the throughput of IEEE 802.11 wireless networks over noisy channels using constant backoff window. The optimal Contention window and fragment size are calculated using this model.
Keywords
IEEE 802.11b, BER, Fragmentation, Contention Window.- Isolation of Tiliroside from Tribulus terrestris
Abstract Views :150 |
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Authors
Affiliations
1 Department of Pharmacognosy, Nargund College of Pharmacy, Dattatreyanagar, 2nd main, 100 ft Ring Road, BSK III stage-Bangalore-560085, IN
2 East Point College of Pharmacy, Bangalore-49, IN
3 Dyananda Sagar College of Pharmacy, Bangalore-78, IN
4 Nargund College of Pharmacy, Bangalore-85, IN
1 Department of Pharmacognosy, Nargund College of Pharmacy, Dattatreyanagar, 2nd main, 100 ft Ring Road, BSK III stage-Bangalore-560085, IN
2 East Point College of Pharmacy, Bangalore-49, IN
3 Dyananda Sagar College of Pharmacy, Bangalore-78, IN
4 Nargund College of Pharmacy, Bangalore-85, IN
Source
Research Journal of Pharmacognosy and Phytochemistry, Vol 3, No 6 (2011), Pagination: 281-285Abstract
Gokhru, the fruits of Tribulus terrestris Linn belonging to the family Zygophyllaceae. Large number of compounds has been isolated from the fruits of Tribulus terrestris Linn. The present investigation was to isolate and characterize the compounds. Attempt was made to fractionate the 50%bmethanolic extract to isolate the phytoconstituents using column chromatography. One among the isolated compound is Tiliroside. It has been confirmed by various physio-chemical investigations like (M.P, NMR, HPLC, TLC etc).Keywords
Tribulus terrestris, Zygophyllaceae, Tiliroside, Column Chromatography.- Phytochemistry and Pharmacology of an Important Indian Medicinal Plant Crataeva nurvala Buch Ham
Abstract Views :164 |
PDF Views:0
Authors
Affiliations
1 East Point College of Pharmacy, Bidarahalli, Bangalore-560049, IN
2 Dayananda Sagar College of Pharmacy, Bangalore-560078, IN
3 PES College of Pharmacy, Bangalore-560059, IN
1 East Point College of Pharmacy, Bidarahalli, Bangalore-560049, IN
2 Dayananda Sagar College of Pharmacy, Bangalore-560078, IN
3 PES College of Pharmacy, Bangalore-560059, IN
Source
Research Journal of Pharmacognosy and Phytochemistry, Vol 2, No 4 (2010), Pagination: 275-279Abstract
Crataeva nurvala Buch. Ham. (Capparidaceae) is a high-value medicinal tree that grows almost all over India, especially in the semiarid regions. Medicinal usage has been reported in traditional systems of medicine, such as Ayurveda and Unani. This drug is used in traditional system of medicine against a wide variety of urinary disorders. Crataeva nurvala is commonly known as Varuna. Many phytoconstituents have been isolated from the fruits, ischolar_main bark and stem bark of Varuna. Lupeol is the major chemical constituent isolated from Varuna. The minor chemical constituents are cadabicine, cadabicinediacetate, catechin, (-)epicatechin- 5-glucoside, (-)epiafzelechin, glucocapparin, lupeol acetate, spinasterol acetate and taraxasterol. Lupeol, a pentacyclic triterpene isolated from the ischolar_main bark, has been shown to significantly minimize the deposition of stone-forming constituents in kidneys. Investigations have also indicated the plant has anti-arthritic, hepatoprotective, and cardio-protective actions. This review briefly examines the Phytochemistry, biological activities, pharmacological actions, clinical studies, and medicinal applications of Crataeva nurvala to provide direction for further research.Keywords
Crataeva nurvala, Capparidaceae, Varuna, Lupeol, Urinary Disorders.- Quantitative Estimation of Rosmarinic Acid in Ocimum sanctum Extracts and Polyherbal Formulation by HPTLC
Abstract Views :138 |
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Authors
Affiliations
1 Dayananda Sagar College of Pharmacy, Kumaraswamy Layout, Bangalore-560 078, IN
2 Al-Ameen College of Pharmacy, Bangalore-560027, IN
3 East Point College of Pharmacy, Bangalore- 560049, IN
4 Dayananda Sagar College of Pharmacy, Kumaraswamy Layout, Bangalore- 560 078, IN
1 Dayananda Sagar College of Pharmacy, Kumaraswamy Layout, Bangalore-560 078, IN
2 Al-Ameen College of Pharmacy, Bangalore-560027, IN
3 East Point College of Pharmacy, Bangalore- 560049, IN
4 Dayananda Sagar College of Pharmacy, Kumaraswamy Layout, Bangalore- 560 078, IN
Source
Research Journal of Pharmacognosy and Phytochemistry, Vol 2, No 1 (2010), Pagination: 46-48Abstract
Rosmarinic acid is an important bioactive content having analgesic and inflammatory activity. The content of Rosmarinic acid in Ocimum sanctum and three polyherbal formulations was estimated by HPTLC.
- Geo-Microbial Prospecting Studies of Surface Sediments from Petroliferous Region of the Mehsana Block, North Cambay Basin
Abstract Views :179 |
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Authors
M. A. Rasheed
1,
M. Veena Prasanna
1,
M. Lakshmi
1,
T. Madhavi
1,
M. S. Kalpana
1,
D. J. Patil
1,
A. M. Dayal
1
Affiliations
1 Microbiology Laboratory, CSIR-National Geophysical Research Institute, Hyderabad - 500 606, IN
1 Microbiology Laboratory, CSIR-National Geophysical Research Institute, Hyderabad - 500 606, IN
Source
Journal of Geological Society of India (Online archive from Vol 1 to Vol 78), Vol 80, No 2 (2012), Pagination: 267-275Abstract
Surface adsorbed gas surveys and geo-microbiological surveys are well known techniques of petroleum exploration and aim towards risk reduction in exploration by way of identifying the areas warm with hydrocarbons and to establish inter-se exploration priorities amongst the identified warm areas. The thermogenic surface adsorbed gaseous hydrocarbons distribution patterns in petroliferous areas are considered to be a credible evidence for the upward migration of hydrocarbons. The present investigation aims to explore correlation between the adsorbed gas distribution pattern and microbial oxidizers in identifying the upward migration of hydrocarbons especially in the tropical black soil terrain of known petroliferous Mehsana Block of North Cambay Basin, India. A set of 135 sub-soil samples collected, were analyzed for indicator hydrocarbon oxidizing bacteria, adsorbed light gaseous hydrocarbons and carbon isotope ratios (δ 13Cmethane and δ13Cethane). The microbial prospecting studies showed the presence of high bacterial population for methane (5.4 × 106 cfu/gm), ethane (5.5 × 106 cfu/gm), propane (4.6 × 106 cfu/gm) and butane oxidizing bacteria (4.6 × 106 cfu/gm) in soil samples. The light gaseous hydrocarbon analysis showed that the concentration ranges of C1, C2, C3, iC4 and nC4 are 402 ppb, 135 ppb, 70 ppb, 9 ppb and 18 ppb, respectively, and the value of carbon isotope ranges of methane -29.5 to -43.0‰ (V-PDB) and ethane -19.1 to -20.9‰ (V-PDB). The existence of un-altered petroliferous microseep (δ13C, -43‰) of catagenetic origin is observed in the study area. Geo-microbial prospecting method and adsorbed soil gas and carbon isotope studies have shown good correlation with existing oil/gas fields of Mehsana. Microbial surveys can independently precede other geochemical and geophysical surveys to delineate area warm with hydrocarbons, and mapped microbiological anomalies may provide focus for locales of hydrocarbon accumulation in the Mehsana Block of Cambay Basin.Keywords
Geo-Mirobial Prospecting, Adsorbed Soil Gas, Light Hydrocarbons, Carbon Isotopes, Cambay Basin.References
- BANERJEE, A. and RAO, K.L.N. (1993) Geochemical evaluation of part of the Cambay Basin, India. Amer. Assoc. Petrol. Geol. Bull., v.77, no.1, pp.29-48.
- BHANDARI, L.L. and CHOUDHARY, L.R. (1975) Stratigraphic Analysis of Kadi and Kalol Formations, Cambay Basin, India. Amer. Assoc. Petrol. Geol. Bull., v.59, pp.856-871.
- BISWAS, S.K. (1982) Rift basins in western margin of India and their hydrocarbon prospects with special reference to Kutch basin. Amer. Assoc. Petrol. Geol. Bull., v.66, pp.1497-1513.
- BISWAS, S.K. (1987) Regional tectonic framework, structure, and evolution of the western margin basins of India. Tectonophysics, v.137, pp.307-327.
- BISWAS, S.K., RANGARAJU, M.K., THOMAS, J. and BHATTACHARYA, S.K. (1994) Cambay – Hazad Petroleum System in South Cambay Basin, India. In: L.B. Magoon and W.G. Dow (Eds.), Petroleum System from Source to trap. Amer. Assoc. Petrol. Geol., v.60, pp.615-624.
- CHANDRA, K., MISHRA, C.S., SAMANTA, U., ANITA GUPTA and MEHROTRA, K.L. (1994) Correlation of different maturity parameters in the Ahmedabad-Mehsana block of the Cambay basin. Org. Geochem., v.20, no.3/4, pp.313-321.
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- JILLMAN, N. (1987) Surface Geochemistry Enigmas. Oil and Gas Jour., v.9, pp.87-89.
- KUNDU, J., PRASAD, B. and ANAND PRAKASH. (1997) Structural framework and distribution of Synrift Depocentres in Cambay Rift Basin, Western India. Amer. Assoc. Petrol. Geol. Bull., v.81, pp.1392-1393.
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- MADHAVI, T., SATISH KUMAR, T., RASHEED, M.A., KALPANA, G., PATIL, D.J. and DAYAL, A.M. (2009). Light hydrocarbon geochemistry of surface sediment from petroliferous region of the Mehsana Block, North Cambay Basin. Jour. Geol. Soc. India, v.74, pp.7-15.
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- MATHUR, L.P., RAO, K.L.N. and CHAUBE, A.N. (1968) Tectonic frame-work of Cambay Basin, India. ONGC Bull., v.5, pp.7-28.
- MEHROTRA, K.L., GUPTA, A., TIWARI, G. and KUMAR, A. (1991) Geochemistry of Cambay Basin. In: Integrated Exploration Research – status and perspective 1990, pp.429-436.
- MILLER, G.H. (1976) Microbial Survey to evaluate oil and gas. Oil and Gas Jour., v.4, pp.192.
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- RAJU, A.T.R. (1969) Geological evolution of Assam and Cambay Tertiary Basins of India. Amer. Assoc. Petrol. Geol. Bull., v.52, no.12, pp.2422-2437.
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