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Jayaprakash, A.
- A New Report on Mycobiota Associated with Ropalidia marginata Paper Nests
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PDF Views:109
Authors
Affiliations
1 Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai-600 025, Tamil Nadu, IN
1 Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai-600 025, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 3, No 1 (2010), Pagination: 6-8Abstract
Twenty four fungal species were isolated from the paper nests of common Indian paper wasp Ropalidia marginata. The genus Aspergillus was dominant while Penicillium recorded next in the paper nests. Among Aspergillus spp., A. niger was most abundant (14%), followed by A. flavus (7%). Among Penicillium spp., P. citrinum occurred high (9%) followed by P. oxalicum (2%). The nest material analysed by GC-MS revealed that it was predominantly wax and that the components were mainly hydrocarbons.Keywords
Mycoflora, Aspergillus, Paper Nests, Penicillium, Ropalidia marginata, Wasp, New ReportFull Text
References
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- Investigation on Extracellular Lipase Production by Aspergillus japonicus Isolated from the Paper Nest of Ropalidia marginata
Abstract Views :599 |
PDF Views:174
Authors
Affiliations
1 Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, IN
1 Centre for Advanced Studies in Botany, University of Madras, Guindy Campus, Chennai 600 025, Tamil Nadu, IN
Source
Indian Journal of Science and Technology, Vol 3, No 2 (2010), Pagination: 113-117Abstract
Aspergillus japonicus isolated from the paper nest of Ropalidia marginata was screened for its extracellular lipase production. Maximum lipase activity (120 U/ml) was achieved by manipulating the culture environment. The optimum pH was 7.5 and the temperature was 40°C. Sucrose served as the best carbon source whereas peptone was the best nitrogen source for lipase production. An animal fat, pig fat in the culture medium enhanced lipase production. These investigations will be helpful in further scaling-up processes of this industrial enzyme. Owing to many applications in high-value syntheses and as bulk enzymes, lipases have high impact on bioprocessing.Keywords
Aspergillus japonicus, Paper Nest, Pig Fat, Ropalidia marginata, Lipase, Tween-20Full Text
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