Production of Xanthan Gum by the Native Strain of Xanthmonas Citri in Whey Medium and Evaluation of its Physicochemical Properties

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MORAVEJ ROYA; ALAVI SEYED MEHDI; AZIN MEHRDAD; SALMANIAN ALI HATEF

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Journal: BIOLOGICAL JOURNAL OF MICROORGANISM Year:2019 | Volume:8 | Issue:30 Page(s): 69-79

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Title

Production of Xanthan Gum by the Native Strain of Xanthmonas Citri in Whey Medium and Evaluation of its Physicochemical Properties

Author(s)

MORAVEJ ROYA | ALAVI SEYED MEHDI | AZIN MEHRDAD | SALMANIAN ALI HATEF | Issue Writer Certificate

Keywords

Xanthan GumQ2

Xanthomonas citriQ1

Cheese WheyQ2

Acetate and PyruvateQ1

Abstract

Introduction: Xanthan is an extracellular polysaccharide produced by Xanthomonas genus. Because of high viscosity and other properties, this gum is used in various industries. Hence, the use of cheap carbon sources such as whey can be economically feasible to produce Xanthan Gum with positive lactose strains of Xanthomonas. Materials and methods: In this study, the native strain of Xanthmonas citri 386 was used to produce Xanthan Gum in Cheese Whey medium. The strain was cultured in a yeast extract lactose broth (YL) and then inoculated into production medium, the fermentation process was investigated in 5 days’ time in terms of production variables such as growth, consumption of lactose, viscosity and amount of xanthan. The content of pyruvate and acetate of product were compared with standard xanthan and the FTIR method was used to determine the functional groups. Results: The utilized strain had the ability to use lactose in Cheese Whey. At the end of the fermentation process, the amount and viscosity of xanthan were estimated to be 20. 3 g/L and 2066. 5 centipoise, respectively. The Acetate and Pyruvate content was acceptable in comparison with standard xanthan, and the FTIR study confirmed the position of the functional groups of the xanthan structure. Conclusion: In this study, for the first time, the native isolate of Xanthomonas citri 386 was evaluated for the production of xanthan in whey. This strain showed high potential for lactose consumption in whey and produced a significant amount of xanthan with an optimum viscosity. Therefore, at an industrial scale, the use of this native isolate, can be suitable for the production of xanthan by low-priced whey medium.

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APA: Copy

MORAVEJ, ROYA, ALAVI, SEYED MEHDI, AZIN, MEHRDAD, & SALMANIAN, ALI HATEF. (2019). Production of Xanthan Gum by the Native Strain of Xanthmonas Citri in Whey Medium and Evaluation of its Physicochemical Properties. BIOLOGICAL JOURNAL OF MICROORGANISM, 8(30 ), 69-79. SID. https://sid.ir/paper/237457/en

Vancouver: Copy

MORAVEJ ROYA, ALAVI SEYED MEHDI, AZIN MEHRDAD, SALMANIAN ALI HATEF. Production of Xanthan Gum by the Native Strain of Xanthmonas Citri in Whey Medium and Evaluation of its Physicochemical Properties. BIOLOGICAL JOURNAL OF MICROORGANISM[Internet]. 2019;8(30 ):69-79. Available from: https://sid.ir/paper/237457/en

IEEE: Copy

ROYA MORAVEJ, SEYED MEHDI ALAVI, MEHRDAD AZIN, and ALI HATEF SALMANIAN, “Production of Xanthan Gum by the Native Strain of Xanthmonas Citri in Whey Medium and Evaluation of its Physicochemical Properties,” BIOLOGICAL JOURNAL OF MICROORGANISM, vol. 8, no. 30 , pp. 69–79, 2019, [Online]. Available: https://sid.ir/paper/237457/en

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