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Kartick Chandra Pramanik , Ria Biswas , Durba Bandyopadhyay , Moumita Mishra , Chintamoni Ghosh , T. K. Chatterjee

Abstract

Objective: The purpose of this present study is to elicit the anti-ulcer property of Juniperus communis (Linn.). Materials and Methods: In the present communication, models of acetyl salicylic acid, serotonin, indomethacin, alcohol and stress-induced gastric ulcerations in rats and histamine-induced duodenal lesions in guinea pigs were adopted to study the anti-ulcer activity of the extract. Biochemical parameters like pH, total acidity and peptic acidity of the gastric juice was also studied. Results: The crude leaf extract at doses of 50 mg and 100 mg/kg (i.p) significantly inhibited aspirin, serotonin, indomethacin, alcohol and stress-induced gastric ulcerations in rats and histamine-induced duodenal lesions in guinea pigs. The healing rate of acetic acid induced ulcer in rats was also enhanced significantly by the leaf extract. The results were at par with the standard drug ranitidine. Biochemical analysis of gastric juice revealed that the extract significantly decreased its volume and total acidity, but did not alter its pH and peptic activity. Conclusion: The present study revealed that the leaf extract of J. communis is a potent ulcer pain reliever and also promotes healing, which are the two ultimate goals of therapy for ulcers.

Keywords

Juniperus communis (L.), Anti-ulcer, Leaf Extract, Gastric Lesion

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D. S. N. Raju ¹, B. C. Jaiprakash ¹, Arun Kumar ¹, R. K. Saxena ¹, Alok Dave ¹, T. K. Chatterjee ¹, C. M. Mishra ¹

Affiliations
1 Geological Laboratories, KDM Institute of Petroleum Exploration, ONGC, Kaulagarh Road, Dehra Dun - 248195, IN

Abstract

The latest Paleontological data suggest that the duration of Deccan trap eruption in Krishna-Godavari basin varies from place to place and could be anywhere between <0.5 Ma and 6 Maacross KTB. Three groups of fossils viz., Planktic foraminifera, Nannoplanktics and Dinoflagellate cysts suggest that the initiation of volcanism was during latest Maastrichtian within the upper part of Abathomphalus mayaroensis Zone, Micula murus Zone and Triblastula utinensis Zone between 67 and 66.5 Ma. There are conflicting evidences in dating the upper age limit of the volcanics probably due to diverse methods employed in calibration of forarniniferal and nannoplanktic scales or selective retrieval of very small sized planktics of zones P0 and P1 in well cuttings.

Keywords

Micropalaeotogy, Deccan Volcanism, Age, Krishna-Godawari Basin.

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Alok Dave ¹, T. K. Chatterjee ¹

Affiliations
1 Paleontology Laboratory, KDMlPE, ONGC, Kaulagarh Road, Dehra Dun-248 195, IN

Abstract

In the Post-Vindhyan times, major marine transgressions covered the areas of Kutch and Rajasthan, including the Jaisalmer Basin during Jurassic, although minor Permian transgressions are also known. These events could be documented from the well known exposures of Kutch and Rajasthan which entombed classic Cephalopod fauna. The foraminiferal components of Kutch Mesozoic were catalogued by Pandey and Dave (1993), recognizing 13 benthic foraminiferal biozones, establishing 8 chronostratigraphic units (stages).

Within the outcropping marine Middle-Upper Jurassic succession of Jaisalmer, seven benthic foraminiferal zones have been recognized and correlation with Kutch Mesozoic established. However, the succession is interrupted by five hiatuses during - (1) Upper Bathonian, (2) Upper Callovian - Lower Oxfordian, (3) Upper Oxfordian - Lower Kimmeridgian, (4) Middle Kimmeridgian and (5) Upper Kimmeridgian - Lower Tithonian.

Trangressive events during Lower Bathonian, Lower Callovian, Middle - Upper Oxfordian and Lower Kimmeridgian with intervening regressive pulses are also recorded.

Badian, Charian, Dhosaian, Katrolian and Umiaian stages of Kutch ranging in age from Bathonian to Tithonian are recognized.

Keywords

Biostratigraphy, Micropaleontology, Foraminifera, Jurassic, Jaisalmer, Rajasthan.

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G. Biswas ¹, T. K. Chatterjee ¹

Affiliations
1 Central Food Laboratory, Calcutta, IN

Abstract

Commercial samples of food colours and their preparations have been examined for toxic metals like lead, cadmium, copper and zinc by AAS and chromium and arsenic by spectrophotometry not only for safety against these toxicants but also for regulatory compliance. It was found that some of the samples (having excessive metal toxicants) transgress the statutory limits of PFA Act and rules. The genesis of the problem has been discussed.

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T. K. Chatterjee ¹, R. P. Barman ², S. S. Mishra ²

Affiliations
1 Zoological Survey of India, Sundarban Field Research Station, Canning, IN
2 Zoological Survey of India, Marine Fish Section, Kolkata, IN

Abstract

The gobioid fishes are distributed throughout the temperate and tropical zones of the world. They occur in fresh to hyper saline waters, in mud, sand as well as reef habitats. Some species have a very wide distribution, while a few are markedly localized. Most species are cryptic bottom dwelling carnivores that usually feed on small benthic invertebrates. Abundance in number of species, intraspecific morphological diversity and interesting habitat, behaviour and adaptations make them a subject of great biological importance. Most of the gobioid fishes found in the Sundarbans are mangrove associates, particularly the mudskippers are characteristic of any mangrove habitat.

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T. K. Chatterjee ¹, S. S. Mishra ²

Affiliations
1 Zoological Survey of India, Sundarhan Field Research Station, Canning, IN
2 Zoological Survey of India, 27 J. L. Nehru Road, Kolkata-700 017, IN

Abstract

Updated information on fish fauna of India resulted in summarising that the Indian waters are represented by 69 genera and 174 species of gobioid fishes (Perciformes, Gobiidae). The subfamily Gobionellinae comprises of 13 genera and 33 species in India. While working on the gobioid fishes of Indian Sundarbans (latitude 21°13'- 22°40' N. and longitude 88°03'- 89°06' E.),the first author came across few specimens of an interesting goby. After careful examination that turned out to be an undescribed species.

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T. K. Chatterjee ¹

Affiliations
1 Gresham & Craven of India (P) Ltd, Calcutta, IN

Abstract

At the beginning, I confess that being a representative from an Engineering Workshop and a person mostly engaged in managing affairs of such a concern, I feel a little out of place in talking to such an elite of specialists in housing construction. I shall be talking on behalf of my Company-Gresham & Craven of India (P) Ltd., Calcutta which are widely known as manufacturers of brake equipments for the railways of the world. But the design, fabrication, installation and maintenance of pre-fabricated, frameless, steel-mesh reinforced, if so necessary, aluminium housings of various ground plans, shapes and sizes have also been the activities of this company and it is in this context that I have taken to the floor.

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