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Preparation of Cellobiuronic Acid from Polysaccharide

A preferred embodiment of the method includes hydrolyzing gellan gum with a protic acid under reaction conditions that convert at least 95 wt% of the gellan gum to a hydrolysate comprised of cellobiuronic acid and monosaccharides and isolating a separated fraction of the hydrolysate where cellobiuronic acid comprises at least a 95 wt% of saccharides in the separated fraction. Cellobiuronic acid may be prepared by hydrolysis of gellan gum. The method may further include isolation of a separated fraction of the hydrolysate where the separated fraction comprises cellobiuronic acid. Issued in the United States as Patent Number 6,268,493. Issued in Australia as Patent Number 764652.

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IP Portfolio licensable from Cambia

Cambia is in the process of implementing its new policy to maximize the public use of its work product.   To this end, we intend to a) abandon all of our patent protection over our inventions and no longer require licensing of any type, and b)  and to longer restrict use of our physical materials through materials transfer agreements (MTA).


We will simply ask that all users of technology or know-how from Cambia acknowledge our contribution to your work.  Those who wish to contribute financially are of course welcomed to do so.


This new policy will be announced publicly in due course.

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Preparation of Cellobiuronic Acid from Polysaccharide

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