Crude Maillard reactive product (MRP) and Maillard reactive product precursors (MRPP) of C. albidum pulp origin were extracted by varying temperature 0 C (30-70), time (min) (10-30 ) and addition of sodium carbonate solution (%) (2-10 mL) using the central composite rotatable designs. Equations for predicting objective indices namely; crude melanoidin, free amino acids, reducing sugar and relat...

The dry gas seal (DGS) is a non-contacting, gas-lubricated mechanical face commonly used in rotating machinery. Traditional analyses of DGSs treat the end as an independent factor by setting end-face inlet boundary conditions, but limited attention focused on sealing chamber DGS. Using finite volume method and shear stress transport (SST) k-ω model, coupling between millimeter-scale micrometer-...

A statistically based Plackett-Burman screening design identified milk whey and corn steep liquor concentrations as well as ionic strength (based on phosphate buffer concentration) as the three main independent components of the culture medium that significantly (p < 0.05) influenced biomass and poly(3-hydroxybutyrate) (PHB) production in recombinant cells of Escherichia coli. This strain carri...

The aim of this study was to understand and investigate the relationship between experimental factors and their responses in the preparation of ciprofloxacin hydrochloride based solid lipid nanoparticles. A quadratic relationship was studied by developing central composite rotatable design. Amount of lipid and drug, stirring speed and stirring time were selected as experimental factors while pa...

Fluorine is released into the water environment naturally or by anthropogenic activities. promotes health benefits at low concentrations, but it adverse effects ranging from fluorosis to carcinogenic problems high concentrations. Although fluorine removal can occur through processes such as adsorption, reverse osmosis, and electrodialysis, phytoremediation emerges an accessible environmentally ...

Optimizing the working performance of cutting device for harvesting Chinese little greens is crucial to reducing energy consumption in and improving quality. To explore mechanical characteristics leafy vegetables cutting, dynamic process with a cutter was simulated numerically by using finite element method based on theoretical analysis. In numerical simulation, response-surface methodology (RS...

A central composite rotatable design with four independent variables viz. blend ratio (broken rice flour and cowpea flour): 90:10–70:30, moisture content (10–18% wet basis), barrel temperature (110–150 °C), screw speed (280–360 rpm) were varied in the development of ready-to-eat snacks using a twin extruder for broken rice–cowpea product. The effects on specific mechanical energy, water absorpt...

Tool wear increases cutting force, vibration, temperature, etc in end milling and reduces surface finish of the machined work piece. Mathematical model has been developed to predict the tool wear in terms of machining parameters such as helix angle of cutting tool, spindle speed, feed rate, axial and radial depth of cut. Central composite rotatable second order response surface methodology was ...