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Effect of Different Carbon Sources on Bacterial Nanocellulose Production and Structure Using the Low pH Resistant Strain Komagataeibacter Medellinensis

机译:低pH抗性麦格氏杆菌麦德林菌对不同碳源对细菌纳米纤维素生产和结构的影响

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摘要

Bacterial cellulose (BC) is a polymer obtained by fermentation with microorganism of different genera. Recently, new producer species have been discovered, which require identification of the most important variables affecting cellulose production. In this work, the influence of different carbon sources in BC production by a novel low pH-resistant strain Komagataeibacter medellinensis was established. The Hestrin-Schramm culture medium was used as a reference and was compared to other media comprising glucose, fructose, and sucrose, used as carbon sources at three concentrations (1, 2, and 3% w/v). The BC yield and dynamics of carbon consumption were determined at given fermentation times during cellulose production. While the carbon source did not influence the BC structural characteristics, different production levels were determined: glucose > sucrose > fructose. These results highlight considerations to improve BC industrial production and to establish the BC property space for applications in different fields.
机译:细菌纤维素(BC)是通过用不同属的微生物发酵而获得的聚合物。最近,发现了新的生产者物种,需要识别影响纤维素生产的最重要的变量。在这项工作中,建立了不同的碳源对新型耐低pH菌株麦格氏杆菌Medellinensis的BC生产的影响。将Hestrin-Schramm培养基用作参考,并与其他包含葡萄糖,果糖和蔗糖的培养基进行比较,以三种浓度(1、2和3%w / v)用作碳源。在纤维素生产过程中的给定发酵时间确定了BC产量和碳消耗动态。尽管碳源不影响BC的结构特征,但确定了不同的生产水平:葡萄糖>蔗糖>果糖。这些结果突出了改善卑诗省工业生产并为不同领域的应用建立卑诗财产空间的考虑。

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