The xylanase production by Cochliobolus sativus strain Cs6 was improved under solid state fermentation (SSF). High xylanase activity (1079 U/g) was obtained when wheat straw was used after 8 days of incubation. Combinations of sodium nitrate with peptone or yeast extract resulted in an increased xylanase production (1543 and 1483 U/g, respectively). The Cs6 strain grown in SSF in a simple mediu...

The isolation of group specific B substance from human stomach juice is described. The substance is carbohydrate-like in nature and is as potent as the carbohydrate-like substance group A isolated from commercial pepsin and peptone respectively.

An immunohistochemical method using biotinyl tyramine was recently introduced to amplify weak staining signals. Despite its high sensitivity, however, tyramine-based immunostaining has been limited by its increased background staining. In this study, to develop an improved protocol of biotinyl tyramine-based immunohistochemistry minimizing the background staining, we determined which staining s...

Human rotaviruses are the most important etiologic agents of acquired diarrhoea in infants and young children worldwide. Rotavirus diarrhoea is more frequent during the winter. Limited reports are available from India about diarrhoea due to rotavirus. Some reports of rotaviral diarrhoea in children between 1 month 4 years of age are available. Therefore, we studied the prevalence of rotaviral d...

By M. A. KRISHNA IYER, Alipuram Jail, Bellary. Few medical men have successfully treated and cured a real case of asthma. The truth of this remark is borne out by the very many and very varied lines of treatment in vogue. Injections of peptone solution have stopped the attacks in some cases for two years, whilst in others soamin injections have been successful. Spraying of the mucous membrane o...

L-Asparagine is responsible for a major portion of the effect of peptone on the growth of L5178Y lymphoblasts in culture and is essential for the reproduction of these cells. Among the compounds tested, the requirement for the amide is replaced only by certain peptide derivatives of asparagine, and these are less active on a molar basis than is L-asparagine; L-aspartic acid, D-asparagine, and L...

Fish peptone was produced using enzymatic hydrolysis of silver carp filleting by-products by alcalase and trypsin. Also, the efficiency of the hydrolysates as a nitrogen source in Staphylococcus aureus medium was compared with commercial TSB. The results indicated that the protein hydrolysate from alcalase and trypsin had high protein content (92.92%, 91.53 respectively), and degree of hydrolys...

Several methods are available for testing the sensitivity of organisms to the sulphonamide drugs (Harper and Cawston, 1945; Evans, 1948; Kokko, 1947), but none of them is entirely suitable for clinical use. The main difficu'ty in using a test similar to that for the antibiotics is the presence of sulphonamide-antagonizing substances in routine media. Such substances were first found in peptone ...