Grasian Immanuel

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Immunostimulants are the substances, which enhance the non-specific defence mechanism and provide resistance against the invading pathogenic micro-organism. In order to increase the immunity of shrimps against the WSSV, the methanolic extracts of five different herbal medicinal plants like Cyanodon dactylon, Aegle marmelos, Tinospora cordifolia, Picrorhiza(More)
The effects of supplementing diets with acetone extract (1% w/w) from four medicinal plants (Bermuda grass Cynodon dactylon, H(1), beal Aegle marmelos, H(2), winter cherry Withania somnifera, H(3) and ginger Zingiber officinale, H(4)) on growth, the non-specific immune response and ability to resist pathogen infection in tilapia Oreochromis mossambicus were(More)
The polysaccharide-fucoidan was extracted from brown seaweed Sargassum wightii and characterized through FT-IR and (13)C &(1)H NMR analysis. The extracted fucoidan was supplemented with pellet diets at three different concentrations (0.1, 0.2 and 0.3%). The fucoidan supplemented diets were fed to Penaeus monodon for 45 days, then challenged with WSSV and(More)
A bacterium producing extracellular lipase was isolated from the gut of the estuarine shrimp Penaeus indicus and identified as Staphylococcus epidermidis. Lipase production was investigated in shake-flask culture. Cod liver oil was found to be a suitable triglyceride to increase lipase production, at an optimum concentration of 1.5%. Investigating the(More)
Production of extracellular lipase in submerged culture of Serratia rubidaea has been investigated. The lipase production was optimized in shake flask experiments. The observed pH and temperature range optimum for maximum lipase production were 7–8 and 30–40 °C, respectively. With a selected nitrogen source, casein ((6.5±0.015) U/mL) and soytone ((9.4±0.02)(More)
The polysaccharide fucoidan from brown seaweed Sargassum wightii was extracted and it was incorporated with pellet diets at three concentrations (0.1, 0.2 & 0.3%). The fucoidan incorporated diets were fed to shrimp Penaeus monodon for 60 days and the growth performance was assessed. The weight gain and SGR of control group was 6.83 g and 9.72%,(More)
One of the major problems in the shrimp culture industry is the difficulty in producing high-quality shrimp larvae. In larviculture, quality feeds containing a high content of highly unsaturated fatty acids (HUFA) and ingredients that stimulate stress and disease resistance are essential to produce healthy shrimp larvae. In the present study, Penaeus(More)
The possibility of utilising anchovy waste meal as a substrate for protease production by the fish gut isolate Serratia proteamaculans AP-CMST was assessed through solid-state fermentation. A time course for protease production revealed 72 h to be the optimum duration for higher production (146.24 U/g). The most suitable pH, temperature and moisture level(More)
Extracellular lipase production by Staphylococcus epidermidis CMST Pi 2 isolated from the intestine of shrimp Penaeus indicus has been investigated in shake-flask experiment using different preparations of tuna-processing waste such as raw fish meat, defatted fish meat, alkali hydrolysate, and acid hydrolysate as nitrogen source. Among the tested tuna(More)
An extracellular lipase produced by marine fish intestinal isolate Halobacillus sp. AP-MSU 8 was purified and characterized. The lipase was purified to homogeneity using ammonium sulphate precipitation, DEAE-Sepharose anion exchange chromatography and Sephadex G-75 gel filtration chromatography. The overall purification protocols resulted in 25 % yield of(More)