ปัจจัยทีส่งผลต่อการผลิตเซลลูโลสจากแบคทีเรียสายพันธ์ุ Acetobacter sp. และเทคโนโลยีทีใช้ในกระบวนการหมัก

Abstract

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Factors affecting production of cellulose by Acetobacter sp. and fermentation technology

Bacterial cellulose from the fermentation process by Acetobacter sp. is a biopolymer. Since its unique structural and mechanical properties which differ from plant cellulose such as high purity, high water holding capacity and unique strength, bacterial cellulose has been used in the various applications. However, factors affecting high yield production of cellulose mainly include the culture medium, the volume of inoculums, the carbon source, the dissolved oxygen, the temperature, pH and the nitrogen source. Therefore, intense researches on bacterial cellulose mainly focus on the optimum condition for the growth and fermentation process of bacteria A. xylinum. The optimum condition for producing cellulose involves the proper fermentation media such as using arabitol as a carbon source, the addition of antioxidant compound for reducing the concentration of gluconic acid, adjusting the pH in the range of 4-6 and providing adequate carbon and nitrogen sources. Several investigations using new technology are further improvement of fermentation processes including mutagenesis of A. xylinum using ultraviolet radiation. The results showed that the ability of cellulose production is more 26 % higher in comparison with the productivity of wild type cells. These factors are important to enhance potential of cellulose production and application of bacterial cellulose in industry scale.