Biomedical Engineering Reference
In-Depth Information
xanthomonas
first order
seed
S
econd order
seed
Production
control
fermentation
reactor
Fermentation liquid tank
concentration
Wash to remove
cell
Alcohol
liquid storage
somat
ic cell
Alcohol distillation
and recovery
system
Alcohol
liquid storage
precipitation
solid-liquid
separation
Alcohol
liquid storage
dehydration
xanthan gum
Fig. 7.4
Xanthan gum production process [
106
,
108
]
of xanthan gum gives it unique physical and chemical properties, such as good
thickening, thixotropy, emulsifying properties, and false plasticity. Xanthan gum is
a green, nontoxic, safe substance. Therefore, it is widely used in the food industry.
In addition, it is one of the most superior biological glues.
Since the 1950s, production of a variety of microbial polysaccharides by
fermentation technology has been a hot topic, and several microbial polysaccharides
have already been made at the industrial scale. Xanthan gum is one of the most
representative of those with the highest commercialization degree. The production
process for xanthan gum is shown in Fig.
7.4
. The key parts are selection and
transformation of xanthan gum production strains, the development and control of
the new fermentation process, and separation and purification of the xanthan gum
product.
