Sustainable production of microbial polysaccharide xanthan gum from supplemental subststrate.

Magar Subhash B; Abhijit S  Jadhav; Sumitkumar Jana

Volume : IV, Issue : VIII, August - 2015

Sustainable production of microbial polysaccharide xanthan gum from supplemental subststrate.

Magar Subhash B, Abhijit S Jadhav, Sumitkumar Jana

Abstract :

There are several pathways to produce bio–based chemicals and polymers. The pathways that are most important in terms of production volumes today and in the medium–term future are white biotechnology (industrial biotechnology) and the use of natural polymer (in particular xanthan gum, cellulose and starch).Increasing market price and demand suggest that glucose may no longer economics for the raw material, while using batch process may also limit the capacity. It is therefore the purpose of this review to investigate alternative to economically produce xanthan gum. The various researches studied that most supplemental substrate are best sole of carbon source. The scenario review shows properties of xanthan, various aspects of xanthan production including the various strains used for the production and various supplemental substrates used as alternate source of glucose. Substrate used for the production of xanthan were agro–industry or by products including spent malt grains, apple pomace, grape pomace citrus peels, which can be obtained at a very low cost. Also cheese whey hydrolyzed rice, barely, corn flour, and sugarcane molasses, Sugar beet molasses, olive mill wastewater etc.which causes several drawbacks on environment, when it is directly disposed in the environment. Utilization of these streams for the xanthan production increases economy of the process.With most substrate, xanthan yields were comparable to those obtained from conventional submerged cultivation. The basic characteristics of the process were studied on various supplemental substrate prepared with a solution of nutrients.