Gluconic add

Conversion of the gluconolactone to gluconic add occurs under certain conditions by spontaneous hydrolysis, though a rather specific lactonising enzyme is present in cells. 

The control of glucose oxidase production is still not fully eluddated, nor is the role of gluconic add in cells. However, elevated levels of glucose oxidase are found in conditions of high glucose concentrations and above normal oxygen tension. 

Depending on which of the products, caldum gluconate, sodium gluconate or gluconic add (free add) is required, die fermentations have some basic differences. 

Downstream processing to obtain caldum gluconate is different to that employed to obtain either sodium gluconate or the free gluconic add. 

Free gluconic add can be obtained from calrium gluconate by treatment with sulphuric arid. 

Kulprathipanja, S. (2007) Separahon of dtric add from gluconic add in fermentafron broth using a weakly or strongly basic anionic exchange resin adsorbent. U.S. Patent 7,241,918 Bl. 

The main product appears as a result of primary energy metabolism. Examples production of biomass, edianol and gluconic add. 

Which one of the following organisms is likely to produce gluconic add at the fastest rate ... 

The industrial production of gluconolactone and gluconic add Summary and objectives... 

Aqueous solutions of gluconic add are equilibrium mixtures of uconic add itself, togetiier with tiie gamma and delta lactones. Hie relative concentrations of each of these can be profoundly influenced by the temperature at which crystals are allowed to separate out, a situation aided by seeding with the appropriate required crystal. At temperatures below 30°C, and particularly between 0 to 4°C, free gluconic add predominates. Between 30 and 75°C tiie predominant crystals are mainly ddta lactone and above 70°C the prindpal crystals are tiie gamma lactone. 

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