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Fermentation Performance and Structure Characteristics of Xanthan Produced by Xanthomonas campestris with a Glucose/Xylose Mixture
Zhang, Zhiguo; Chen, Hongzhang; Chen, HZ
2010-03-01
Source PublicationAPPLIED BIOCHEMISTRY AND BIOTECHNOLOGY
ISSN0273-2289
Volume160Issue:6Pages:1653-1663
AbstractThe ability of Xanthomonas campestris to convert glucose and xylose to xanthan and the structure of xanthan derived from the glucose/xylose mixture media are important when the lignocelluloses hydrolysate was used in xanthan production. In this paper, the features related to xanthan fermentation in the glucose/xylose mixture media and the structures of xanthan derived from the mixture media were studied. Glucose was the preferred carbon source to produce xanthan while xylose was also utilized with a very low consumption rate. When the fraction of glucose decreased from 100% to 25%, the glucose consumption rate and xanthan production rate reduced from 0.44 g L(-1) h(-1) to 0.25 g L(-1) h(-1) and 0.21 g L(-1) h(-1) to 0.04 g L(-1) h(-1) respectively while xylose was consumed at a very stable rate (0.053-0.060 g L(-1) h(-1)). On the other hand, when the xylose fraction increased from 0% to 50%, pyruvate and acetate content of xanthan increased from 2.43% to 3.78% and 2.55% to 7.05%. The existence of xylose also led to higher average molecular weight. Therefore, it could be concluded that xylose was not efficiently utilized by X. campestris to produce xanthan. The concentration of glucose rather than the total sugar was the main factor to determine the xanthan production. But xylose was helpful to improve the quality of xanthan.
KeywordXanthan Gum Glucose Xylose Xanthomonas Campestris Molecular Structure Lignocellulose
SubtypeArticle
WOS HeadingsScience & Technology ; Life Sciences & Biomedicine
DOI10.1007/s12010-009-8668-y
Indexed BySCI
Language英语
WOS KeywordGUM PRODUCTION ; RHEOLOGICAL PROPERTIES ; ENZYMATIC-HYDROLYSIS ; AGRICULTURAL WASTES ; AQUEOUS-MEDIA ; WHEAT-STRAW ; POLYSACCHARIDE ; BIOREACTOR ; DEPENDENCE ; GLYCEROL
WOS Research AreaBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS SubjectBiochemistry & Molecular Biology ; Biotechnology & Applied Microbiology
WOS IDWOS:000274614400007
Citation statistics
Cited Times:20[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/6186
Collection生化工程国家重点实验室
Corresponding AuthorChen, HZ
AffiliationChinese Acad Sci, Inst Proc Engn, Natl Key Lab Biochem Engn, Beijing 100190, Peoples R China
Recommended Citation
GB/T 7714
Zhang, Zhiguo,Chen, Hongzhang,Chen, HZ. Fermentation Performance and Structure Characteristics of Xanthan Produced by Xanthomonas campestris with a Glucose/Xylose Mixture[J]. APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,2010,160(6):1653-1663.
APA Zhang, Zhiguo,Chen, Hongzhang,&Chen, HZ.(2010).Fermentation Performance and Structure Characteristics of Xanthan Produced by Xanthomonas campestris with a Glucose/Xylose Mixture.APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY,160(6),1653-1663.
MLA Zhang, Zhiguo,et al."Fermentation Performance and Structure Characteristics of Xanthan Produced by Xanthomonas campestris with a Glucose/Xylose Mixture".APPLIED BIOCHEMISTRY AND BIOTECHNOLOGY 160.6(2010):1653-1663.
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