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Mathivanan, V.
- Studies on the Effects of Ph and Incubation Period on Protease Production by bacillus spp. Using Groundnut Cake and Wheat Bran
Abstract Views :436 |
PDF Views:114
Authors
Affiliations
1 Department of Industrial Biotechnology, Bharath University, Chennai-600 073, IN
2 Chemical Engineering Department, Anna University, Chennai-600 025, IN
3 Department of Biotechnology, St. Peter’s Engineering College, Chennai-54, IN
1 Department of Industrial Biotechnology, Bharath University, Chennai-600 073, IN
2 Chemical Engineering Department, Anna University, Chennai-600 025, IN
3 Department of Biotechnology, St. Peter’s Engineering College, Chennai-54, IN
Source
Indian Journal of Science and Technology, Vol 1, No 4 (2008), Pagination: 1-4Abstract
The production of alkaline protease by Bacillus licheniformis (MTCC 1483) and Bacillus subtilis of indigenous isolates using cheapest sources- groundnut cake (N2 Source) and wheat bran (C source) was studied. The proteolytic activity was found maximum at 72 hr of the culture for both the bacterial types but the pH of the medium for maximal enzyme production varied as 9 for Bacillus licheniformis and as 8 for Bacillus subtilis. Thus investigations of this study reveal the possibility of employing cheapest nutrient source for microbial proteases that can be used on a commercial scale.Keywords
pH, Protease, Bacillus licheniformis, B. subtilis, Groundnut Cake, Wheat BranFull Text
References
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- Effects of Pygidial Secretion (Zoopesticide) on Histopathological Changes in the Male Accessory Reproductive Glands of Adult Male Insect Odontopus varicornis in Relation to Reproduction
Abstract Views :173 |
PDF Views:0
Authors
Affiliations
1 Department of Zoology, Annamalai University, Annamalai Nagar, Cuddalore District, Tamil Nadu, IN
1 Department of Zoology, Annamalai University, Annamalai Nagar, Cuddalore District, Tamil Nadu, IN
Source
Toxicology International (Formerly Indian Journal of Toxicology), Vol 17, No 1 (2010), Pagination: 22-26Abstract
Indiscriminate use of pesticides for the eradication of pests causes tremendous changes to the environment and also to other nontarget organisms. To prevent such contamination of the environment and save nontarget species, zoopesticides are increasingly used as they are cost effective, eco-friendly, safe, and sustainable in the field of agriculture. The present study was undertaken to find out the effect of pygidial secretion (zoopesticide) on Odontopus varicornis. The insects were exposed to pygidial secretion for 24, 48, 72, and 96 hours and its sublethal concentration was found to be about 2.8% for 48 hours. When the insects were injected with sublethal concentration 2.8% for 48 hours, the study revealed certain remarkable changes in the histopathology of the male accessory reproductive glands (MARGs) such as disintegration of epithelial cell wall, swollen nucleus, vacuolization of cytoplasm, highly pycnotic and necrotic epithelium, enlargement of epithelial cells, and disorganized tissues. It is suggested that zoopesticide causes several histopathological damages in the MARGs of O. varicornis and affects the reproductive potentiality of O. varicornis.Keywords
Male accessory reproductive glands, Odontopus varicornis, pygidial secretion
- Analysis of Metals Concentration in the Soils of SIPCOT Industrial Complex, Cuddalore, Tamil Nadu
Abstract Views :170 |
PDF Views:0
Authors
Affiliations
1 Department of Zoology, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu, IN
1 Department of Zoology, Annamalai University, Annamalai Nagar - 608 002, Tamil Nadu, IN