a solid state fermentation method was developed for the production of citric acid from date pulp (obtained of date syrup production from the process) by aspergillus niger ptcc 5010. poor yield was obtained when potassium ferrocyanide treated date pulp were used as substrate, but methanol at a 3-4% concentration markedly increased the forma-tion of citric acid from the waste. the optimum range o...

The H-point standard addition method was applied to kinetic data for simultaneous determination of citric and ascorbic acid or selective determination of ascorbic acid in presence of citric acid. The method is based on the difference in the rate of reaction of citric and ascorbic acid with copper(II)-ammonia complex. The linear dynamic ranges for the two analytes of citric and ascorbic acid are...

Objective: The aim of this preliminary study was to investigate gel forming of Makjong powder in effervescent blend and evaluate the probability to develop Makjong effervescent powder formulation for medicinal and beverage applications. Methods: Blank effervescent blend consisted of citric acid, tartaric acid, and sodium bicarbonate with different ratio was prepared. The effervescent blends wer...

There were several techniques determined for the analysis of citrate and citric acid mixtures in the pharmaceutical dosage forms. Titration methods, photometric and ion chromatographic methods were used for their determination. These methods will restrict too many factors where the accurate quantification of citrate and citric acid is extremely challenging. Citric acid is the natural flavor use...

Sugarcane leaves were used to produce high-purity and low-density silica xerogels through a sol–gel method. The biogenic produced thermochemical method was reacted with sodium hydroxide (NaOH) form silicate the titrated 1 M citric acid gel. formed gel washed, subjected solvent exchange process later dried at 80 °C xerogels. characterized energy dispersive X-ray spectroscopy (EDX), diffraction (...

in this paper, labo3 perovskite type catalyst formulations were prepared by sol-gel auto combustion method using citric acid as the fuel. activity of catalysts was tested in catalytic oxidation of toluene as a model of volatile organic compounds. lacoo3 perovskite formulation showed the highest activity among labo3 (fe, mn and co) perovskite catalysts. so, lacoo3 perovskite based catalyst was s...

Many methods are to be found in the literature for the determination of several of the individual acids of the “citric acid cycle;” however, to date no method has been available for the simultaneous determination of all of the acids in a single sample of tissue. Isherwood (1) employed partition chromatography on silica gel to separate and determine subsequently a group of acids present in fruit...

Many methods are to be found in the literature for the determination of several of the individual acids of the “citric acid cycle;” however, to date no method has been available for the simultaneous determination of all of the acids in a single sample of tissue. Isherwood (1) employed partition chromatography on silica gel to separate and determine subsequently a group of acids present in fruit...

The objective of this study was to examine the effect of ginger extract (GE) combined with citric acid on the tenderness of duck breast muscles. Total six marinades were prepared with the combination of citric acid (0 and 0.3 M citric acid) and GE (0, 15, and 30%). Each marinade was sprayed on the surface of duck breasts (15 mL/100 g), and the samples were marinated for 72 h at 4℃. The pH and p...