Thermo-Chemical Control of Secondary Metabolite Quality,    Yield, and Production Rate:  Synthesis of the PolysaccharideXanthan by the Bacterium Xanthomonas Campestris
{'Code': '07020000', 'Directorate': {'Abbreviation': 'ENG', 'LongName': 'Directorate For Engineering'}, 'Division': {'Abbreviation': 'CBET', 'LongName': 'Div Of Chem, Bioeng, Env, & Transp Sys'}}
{'SignBlockName': 'Maria Burka', 'PO_EMAI': None, 'PO_PHON': None}
Xanthan is an industrially used microbial biopolymer synthesized by the         bacterium Xanthomonas campestris.  Its usefulness derives from its              unique physico-chemical properties when in low concentration aqueous            solutions:  high viscosity, recoverable shear-thinning behavior and             synergistic gelation with polysaccharides.  This project is aimed at            improving thecost- effectiveness of xanthan by determining whether the          optimum temperature and pH for quality (pyruvate content), yield, and           production rate shift withsubstrate concentration in batch reactors.            If shifts are found, the researchers will attempt to specify how the            set points should be varied.  The knowledge thus obtained can then be           used for thermo-chemical control of all secondarymetabolite syntheses.
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{'Name': 'Duke University', 'CityName': 'DURHAM', 'ZipCode': '277054640', 'PhoneNumber': '9196843030', 'StreetAddress': '2200 W MAIN ST', 'StreetAddress2': None, 'CountryName': 'United States', 'StateName': 'North Carolina', 'StateCode': 'NC', 'CONGRESSDISTRICT': '04', 'CONGRESS_DISTRICT_ORG': 'NC04', 'ORG_UEI_NUM': 'TP7EK8DZV6N5', 'ORG_LGL_BUS_NAME': 'DUKE UNIVERSITY', 'ORG_PRNT_UEI_NUM': None}
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{'Code': '1402', 'Text': 'BIOCHEMICAL & BIOMASS ENG'}
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