Microbial rennet-like milk-clotting enzymes are aspartic proteinases that catalyze milk coagulation, substituting calf rennet. Crude enzymatic extract produced by the Aspergillus oryzae NCIM 1032, on solid state fermentation (SSF) using mixture of wheat bran and rice bran (7:3), exhibited high milkclotting activity (MCA) and low proteolytic activity (PA) after 120 h of fermentation. Highest mil...

A local wastewater treatment plant (WWTP) experiencing poor nitrification tracked down high level of surfactants in the plant’s influent and effluent. The aims of this project were to assess the potential inhibitory effect of surfactants on activated sludge processes. The effect of the presence of TergitolNP-9, TrigetolNP-7, Trigetol15-S-9, dodecylbenzene sulphonate (SDBS) and sodium dodecyl su...

Ca deposition by isolated matrix vesicles from fetal calf growth plate cartilage and by a deoxycholate extract from matrix vesicles that included their phosphatase was studied under defined in vitro conditions. Electron microscopy showed that after removal of deoxycholate and lyophilization of the vesicle extract, new vesicles were reconstituted, often with multiple membrane layers. Both intact...

An impaired function of alveolar surfactant can cause lung transplant dysfunction early after reperfusion. In this study it was investigated whether treatment with surfactant before reperfusion improves the immediate function of lung transplants and whether an improved transplant function was associated with an increase in alveolar surfactant components. Left lungs with 6-h (n = 8) or prolonged...

The distribution of narrowly dispersed gold nanoparticles in hexane-in-water emulsions was studied for different surfactants. Good surfactants such as SDS and Triton X-100 block the oil-water interfaces and confine particles in the droplet. Other surfactants (Tween 85 and Span 20) form synergistic mixtures with the nanoparticles at the interfaces that lower the surface tension more than any com...

This review incorporates a large number of chromatographic systems modified by the surfactants. A large number of solvent systems and stationary phases are summarized in this paper. Three different kinds of surfactants (anionic, cationic, and nonionic) are used as modifiers for stationary phases as well as solvent systems. Surfactants are used at all the three different concentration levels (be...

Two soft biocompatible cationic surfactants from the amino acid arginine, 1,2-dilauroyl-3-acetylarginyl-rac-glycerol (1212RAc) and 1,2-dimirystoyl-3-acetylarginyl-rac-glycerol (1414RAc), were prepared. Their physicochemical properties show that they can be classified as multifunctional surfactants with self-aggregation behaviour comparable to that of short-chain lecithins. The two surfactants c...

Background: Calf diarrhea is an important disease that is caused by different pathogens including bacteria, virus and parasites and is associated with economic losses. Objectives: In this study, we evaluated the antibacterial activities of Zatacin (Z. multiflora aerial part ethanol extract), colistin, co-Trimoxazole and enrofloxacin against clinical isolates of Salmonella sp, E. coli and Campyl...