Cellulose produced by Gluconacetobacter xylinus strains ATCC 53524 and ATCC 23768: Pellicle formation, post-synthesis aggregation and fiber density
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- 作者：Christopher M. Leea ; 1 ; cml5481@psu.edu" class="auth_mail" title="E-mail the corresponding author ; Jin Gub ; 1 ; 2 ; gujin.pku@gmail.com" class="auth_mail" title="E-mail the corresponding author ; Kabindra Kaflea ; kuk188@psu.edu" class="auth_mail" title="E-mail the corresponding author ; Jeffrey Catchmarkb ; c ; JCatchmark@engr.psu.edu" class="auth_mail" title="E-mail the corresponding author ; Seong H. Kima ; shkim@engr.psu.edu" class="auth_mail" title="E-mail the corresponding author
- 关键词：Bacterial cellulose ; Cellulose microfibril aggregation ; Fiber density
- 刊名：Carbohydrate Polymers
- 出版年：2015
- 出版时间：20 November 2015
- 年：2015
- 卷：133
- 期：Complete
- 页码：270-276
- 全文大小：1646 K
文摘
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Pellicles of crystalline cellulose were synthesized by G. xylinus strains ACCC 53524 and ATCC 23769 for 1 day and 7 days.
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The changes in cellulose microfibril aggregation were monitored using sum frequency generation (SFG) vibration spectroscopy and scanning electron microscopy (SEM).
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SEM showed that newly synthesized cellulose microfibrils are deposited at the top of the pellicle.
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SEM and SFM showed that the aggregation and packing of cellulose microfibrils was greatest at the top of the pellicle after 7 days culture compared to cellulose microfibrils at the bottom of 7 day pellicles.