Bright Singh, I S; PhIlip, R; Amar, B(Blackwell Publishing, June 19, 2006)
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Abstract:
Prawn shell waste collected from shrimp-processing plants in
Cochin, India, was subjected to fermentation using 20
chitinoclastic and proteolytic/non-proteolytic bacterial
strains. The products generated were analysed for protein,
lipid, total sugars, N-acetyl glucosamine, free amino acids
and ash. Shrimp diets were prepared using these 20 fermented
products and a control diet using raw prawn shell
waste. Feeding experiment was conducted with postlarvae
(PL21) of Indian white prawn, Fenneropenaeus indicus for a
period of 21 days. Biogrowth parameters such as mean
weight gain, feed conversion ratio, specific growth rate and
protein efficiency ratio were estimated and the animals were
challenged with white spot virus orally via diet. Enhanced
growth could be observed in prawns fed F134 and F124,
incorporated with the fermentation products generated using
Bacillus spp., C134 and C124 respectively. The percentage
survival of prawns after 7 days of challenge was found to be
highest for groups fed diet F111 incorporated with fermentation
product generated using Bacillus sp. These products of
bacterial fermentation hold promise as growth enhancers and
immunostimulants in aquaculture.
KEY WORDS: biogrowth parameters, feed
Chandrasekaran, M; Rajeev Kumar, S; Sabu, A; Suresh, P V; Keerthi, T R(Kluwer Academic Publishers, August 6, 1999)
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Abstract:
Beauveria sp. BTMF S10 isolated from marine sediment produced extracellular L-glutaminase. Maximal L-
glutaminase yield (46.9 U/ml) was obtained in a medium supplemented with 1% (w/v) yeast extract and sorbitol,
9% (w/v) sodium chloride and 0.2% (w/v) methionine, initial pH 9.0 and at 27 °C after 108 h. This enzyme was
inducible and growth-associated.
Description:
World Journal of Microbiology & Biotechnology 15: 751±752, 1999.
Anisha, G S; Dr. Prema, P(National Institute of Interdisciplinary Science and Technology,CSIR, May , 2008)
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Abstract:
The present study is focused on the production, purification and
characterization of multiple thermostable α-galactosidases from a novel
actinomycete strain Streptomyces griseoloalbus. The Chapter I of the thesis
covers the wide literature regarding α-galactosidases from various sources
and their potential applications. The Chapter 11 deals with the isolation of α-galactosidase-
producing actinomycetes and selection of the best strain. The
Chapters III and IV describe the optimization of α-galactosidase production
under submerged fermentation and solid-state fermentation respectively. The
Chapter V describes the purification and characterization of multiple α-galactosidases
and also the obvious existence of a novel galactose-tolerant
enzyme. The Chapter VI illustrates the potential applications of α-galactosidases
from S. griseoloalbus followed by the Chapter VII summarizing
and concluding the results of the present investigation.