Nine substrates were investigated for phytase production by Penicillium funiculosum NRC467 fine particles of crushed fava bean has been selected as the best substrate using solid state fermentation (SSF). The SSF conditions were optimized by using one-variable-at-a-time (OVAT) strategy. Penicillin G has been used to enhance phytase production instead of the traditionally used Tween 80 and Trito...

Ru nanoclusters (average diameter = 1.3 ± 0.3 nm) were successfully prepared by using a Ru3 cluster Ru3O(CH3COO)6(H2O)3·(CH3COO) grafted on a pyridine-functionalized SiO2 surface. The pyridine moiety dispersed on the SiO2 surface spread the Ru3 cluster, controlling its surface density, and the nanoclusterization of the Ru cluster proceeded on the surface. The structures of the Ru nanoclusters w...

The white-rot basidiomicete Trametes trogii (MYA 28-11) is an outstanding producer of laccase. A Doehlert experimental design was applied o optimize its lignocellulolytic enzyme production in solid-state fermentation. The impact on enzyme production of three quantitative variables, amely pH, copper and nitrogen concentrations, was investigated by using a wood-based solid medium supplemented wit...

Mevastatin, also known as compactin or ML-236B is a member of the class of statins belonging to the polyketide group. Polyketides are rich sources of pharmaceuticals, including antibiotics, anticancer drugs, and cholesterol-lowering drugs, immunosuppressants and other therapeutics [1]. This study was performed for the production of mevastatin using sesame oil cake as substrate with Pencillium c...

To explore the comprehensive utilization of agricultural wastes, solid-state fermentation was applied to residues Flammulina velutipes (F. velutipes) and vinegar for use in culturing earthworms. Fermentation technology earthworm culture were optimized by response surface methodology this study. The optimal product obtained under an inoculum amount 7.5%, temperature 25.6 °C, pH 7.7 protein conte...

N.sitophila was grown under controlled conditions of solid state and submerged fermentation on Sago hampas. The optimum conditions of protein enrichment previously established for sugar beet pulp was used for this study. Under this condition the protein content of Sago hampas under solid state increased from 1.4 to 14.45% (W/W) whereas for Sago hampas and Sago starch, the protein content under ...

The biosurfactants are produced by various microorganisms and comprise a diversity of molecules characterized by low toxicity, high biodegradability and potential substitutes for synthetic surfactants that cause environmental impact. The southern region of Brazil has an agricultural based economy that produces large volumes of solid-waste per year. These solid-wastes must be properly treated an...

nano-sized batio3 powders with particular nb concentrations were prepared by rotary- hydrothermal (rh) method. hydrothermal method was used at 180 °c for 5 hours with new ti pressure and the teflon vessel was rotated at a speed of 160 rpm during the hydrothermal reaction. new hydrothermal method was used instead of previous solid state reaction for the system batio3±nb2o3 in high temperature to...

in this paper, nickel oxide (nio) nanoparticles have been prepared by solid state thermal decomposition of an acyclic nickel(ii) complex (1,2-bis(2-formyl-3-methoxyphenyl)propane)nickel(ii) chloride, [nil]cl2, in an electrical furnace at optimal temperature, 450 ºc for 3.5 h. the nickel(ii) complex is obtained via solid state synthesis using nickel(ii) chloride and tetradentate o4 acyclic ligan...

Vanillin is a flavorful and aromatic secondary metabolite found in vanilla plants. Natural vanillin, produced through processed beans accounts for scarcely 0.2% of industrial requirements. via chemical methods microbial fermentation fills the remaining gap. Among naturally available precursors biovanillin synthesis, ferulic acid widely used because its structural similarity abundant availabilit...