期刊
CHEMICAL PHYSICS LETTERS
卷 727, 期 -, 页码 105-115出版社
ELSEVIER
DOI: 10.1016/j.cplett.2019.04.063
关键词
Cellulase; Cellulose; Sugarcane bagasse; Rice straw; Relaxation; C-13 CPMAS
资金
- Science and Engineering Research Board (SERB), Department of Science and Technology (DST), government of India [EMR/2016/000249]
- UGC-BSR [30-12/2014BSR]
- DST PURSE (II) at Dr. Harisingh Gour University
Internal structural and dynamics of untreated and the enzyme treated natural cellulose were studied by C-13 cross polarization magic angle spinning (CP-MAS) solid state Nuclear Magnetic Resonance (SSNMR) spectral analysis and relaxation measurements. C-13 spectral analysis indicates the susceptible degradation of the amorphous region of cellulose-microfibril due to enzyme-treatment. Spin-lattice relaxation time of chemically different carbon sites is decreased in enzyme-treated cellulose, which suggests that the polysaccharide chain becomes depolymerised. Relaxometry measurement also suggests that rice straw is more susceptible for degradation than sugar cane bagasse.
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