High production of xanthan gum by a glycerol-tolerant strain <i>Xanthomonas campestris</i> WXLB-006

Wang, Zichao; Wu, Jianrong; Gao, Minjie; Zhu, Lan; Zhan, Xi

doi:10.1080/10826068.2017.1292288

Cited by 18 publications

(8 citation statements)

References 22 publications

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“…The variation of these component effects on the rheological properties of XG. The pyruvate and acetyl percentages were determined 4.21 and 5.04%, respectively, which is aligned with results reported by other researchers (Wang et al 2017(Wang et al , 2016b.…”

Section: Characterization Of Xanthansupporting

confidence: 91%

“…Several studies have shown that different strains of Xanthomonas and culture conditions produce biopolymers with different compositions (Salah et al 2010;Silva et al 2009;Wang et al 2016b). In many cases, the proportion of glucose to mannose is 1:1, but small variations can occur among different strains (Silva et al 2009;Wang et al 2017). Other monosaccharides, such as arabinose, xylose, galactose and rhamnose were also detected at lower concentrations (Salah et al 2010).…”

Section: Characterization Of Xanthanmentioning

confidence: 99%

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Xanthan gum production from acid hydrolyzed broomcorn stem as a sole carbon source by Xanthomonas campestris

et al. 2018

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Xanthan gum is an exo-polysaccharide industrially produced by fermentation using simple sugars. In this study, broomcorn stem was introduced as a low-cost- and widely available carbon source for xanthan gum fermentation. Broomcorn stem was hydrolyzed using sulphuric acid to liberate reducing sugar which was then used as a carbon source for biosynthesis of xanthan gum by . Effects of hydrolysis time (15, 30, 45 and 60 min), sulphuric acid concentration (2, 4, 6 and 8% v/v) and solid loading (3, 4, 5 and 6% w/v) on the yield of reducing sugar and consequent xanthan production were investigated. Maximum reducing sugar yield (55.2%) and xanthan concentration (8.9 g/L) were obtained from hydrolysis of 4% (w/v) broomcorn stem with 6% (v/v) sulphuric acid for 45 min. The fermentation product was identified and confirmed as xanthan gum using Fourier transform infrared spectroscopy analysis. Thermogrvimetric analysis showed that thermal stability of synthesized xanthan gum was similar to those reported in previous studies. The molecular weight of the produced xanthan (2.23 × 10 g/mol) was determined from the intrinsic viscosity. The pyruvate and acetyl contents in xanthan gum were 4.21 and 5.04%, respectively. The chemical composition results indicated that this biopolymer contained glucose, mannose and glucoronic acid with molecular ratio of 1.8:1.5:1.0. The kinetics of batch fermentation was also investigated. The kinetic parameters of the model were determined by fermentation results and evaluated. The results of this study are noteworthy for the sustainable xanthan gum production from low-value agricultural waste.

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Section: Characterization Of Xanthansupporting

confidence: 91%

Section: Characterization Of Xanthanmentioning

confidence: 99%

Xanthan gum production from acid hydrolyzed broomcorn stem as a sole carbon source by Xanthomonas campestris

et al. 2018

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“…The production of xanthan gum has been shown to be influenced by many factors such as species type and environmental factors including dissolved oxygen level, media composition, temperature, pH and incubation time [1], [5], [6]. A cost reduction in xanthan gum production can be achieved by using inexpensive sources such as molasses [4], cheese whey [7], starch [8], kitchen waste [9], glycerol [10], coconut shell, passion fruit peel, corn straw and cobs [11] and jackfruit seed powder [12]. These materials have been used as a carbon source in submerged or solid state fermentations.…”

Section: Introductionmentioning

confidence: 99%

Valorisation of chicken feathers for xanthan gum production using Xanthomonas campestris MO-03

Özdal

Kurbanoğlu

2018

Journal of Genetic Engineering and Biotechnology

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Xanthan gum is an important commercial polysaccharide produced by Xanthomonas species. In this study, xanthan production was investigated using a local isolate of Xanthomonas campestris MO-03 in medium containing various concentrations of chicken feather peptone (CFP) as an enhancer substrate. CFP was produced with a chemical process and its chemical composition was determined. The addition of CFP (1–8 g/l) increased the conversion of sugar to xanthan gum in comparison with the control medium, which did not contain additional supplements. The highest xanthan production (24.45 g/l) was found at the 6 g/l CFP containing control medium in 54 h. This value was 1.73 fold higher than that of control medium (14.12 g/l). Moreover, addition of CFP improved the composition of xanthan gum; the pyruvate content of xanthan was 3.86% (w/w), higher than that of the control (2.2%, w/w). The xanthan gum yield was also influenced by the type of organic nitrogen sources. As a conclusion, CFP was found to be a suitable substrate for xanthan gum production.

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“…Owing to a growing worldwide market for polysaccharides by microbial production, xanthan gum has great potential with regard to applications and strategies for production. Because of its industrial applications, it is attracting increasing interest and wide use in a broad range of industries, such as in food, cosmetics, pharmaceutical, paper, paint, textile, and oil [2][3][4][5]. Use of xanthan gum in industry applications is promising with large economic potential.…”

Section: Introductionmentioning

confidence: 99%

“…The costs of the substrates have an important contribution to the overall xanthan gum production cost, and this can be minimized by using cheaper organic wastes. Renewable substrates, such as glycerol (byproduct of biodiesel Fermentation 2019, 5, 9 2 of 9 production) [5], kitchen waste [11], cheese whey [12], potato starch [13], lignocellulosic agro-industrial wastes [14], and molasses [15] are cheap, easily available and have been investigated as potential substrates for xanthan gum production.…”

Section: Introductionmentioning

confidence: 99%

Use of Chicken Feather Peptone and Sugar Beet Molasses as Low Cost Substrates for Xanthan Production by Xanthomonas campestris MO-03

Özdal¹,

Kurbanoğlu²

2019

Fermentation

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Xanthan gum is one of the polysaccharides most commonly used in a broad range of industries (food, cosmetics, pharmaceutical, etc.). Agro-industrial by-products are being explored as alternative low-cost nutrients to produce xanthan gum by Xanthomonas campestris. In this study, for the production of xanthan gum, sugar beet molasses and chicken feather peptone (CFP) were used as carbon and nitrogen sources, respectively. X. campestris produced the highest level of xanthan gum (20.5 g/L) at 60 h of cultivation using sugar beet molasses (40 g/L total sugar) supplemented with CFP (4 g/L) at pH 7, 200 rpm, and 30 °C. The pyruvic acid content of the xanthan gums increased with increasing CFP concentration. Compared with commercial organic nitrogen sources (tryptone, bacto peptone, and yeast extract), the highest production of xanthan gum was obtained with CFP. Moreover, among the tested peptones, the highest pyruvic acid (3.2%, w/w) content was obtained from CFP. The usage of sugar beet molasses and CFP as substrates in industries would enable a cost-efficient commercial production. These results suggest that sugar beet molasses and CFP can be used as available low-cost substrates for xanthan gum production by X. campestris.

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High production of xanthan gum by a glycerol-tolerant strain Xanthomonas campestris WXLB-006

Cited by 18 publications

References 22 publications

Xanthan gum production from acid hydrolyzed broomcorn stem as a sole carbon source by Xanthomonas campestris

Xanthan gum production from acid hydrolyzed broomcorn stem as a sole carbon source by Xanthomonas campestris

Valorisation of chicken feathers for xanthan gum production using Xanthomonas campestris MO-03

Use of Chicken Feather Peptone and Sugar Beet Molasses as Low Cost Substrates for Xanthan Production by Xanthomonas campestris MO-03

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